Introduction
Welcome to the i18n-agent Translation API! AI-powered translation service with cultural adaptation
This API documentation provides comprehensive information about all available endpoints, authentication methods, request/response formats, and error codes.
Base URLs
| Environment | URL |
|---|---|
| Development | http://localhost:8000 |
| Production | https://api.i18nagent.ai |
Key Features
- 🌐 Multi-language Support - Translate content to 10+ languages with cultural adaptation
- 🚀 Real-time Streaming - Server-Sent Events for progress updates
- 📁 File Translation - Support for JSON, YAML, XML, CSV, and more
- 🔐 Secure Authentication - API key-based authentication
- 💳 Credit System - Pay-as-you-go pricing model
- 🤖 AI-Powered - Uses advanced LLMs for accurate translations
Authentication
To authenticate, use this code:
# With shell, you can just pass the correct header with each request
curl "api_endpoint_here" \
-H "Authorization: Bearer i18n_your_api_key_here"
const headers = {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
};
fetch('api_endpoint_here', { headers })
.then(response => response.json())
.then(data => console.log(data));
import requests
headers = {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
response = requests.get('api_endpoint_here', headers=headers)
print(response.json())
package main
import (
"net/http"
)
func main() {
client := &http.Client{}
req, _ := http.NewRequest("GET", "api_endpoint_here", nil)
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
Make sure to replace
i18n_your_api_key_herewith your API key.
The i18n-agent API uses API keys to allow access to the API. You can get your API key from your account dashboard.
The API key must be included in all API requests to the server in a header that looks like the following:
Authorization: Bearer i18n_your_api_key_here
Endpoints
Monitoring
Health check
GET /health
Check service health status
curl -X GET "https://api.i18nagent.ai/health" \
-H "Authorization: Bearer i18n_your_api_key_here" \
-H "Content-Type: application/json"
const response = await fetch('https://api.i18nagent.ai/health', {
method: 'GET',
headers: {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
});
const data = await response.json();
console.log(data);
import requests
import json
response = requests.get(
'https://api.i18nagent.ai/health',
headers={
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
)
print(response.json())
package main
import (
"bytes"
"encoding/json"
"net/http"
)
func main() {
client := &http.Client{}
req, _ := http.NewRequest("GET", "https://api.i18nagent.ai/health", )
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
req.Header.Add("Content-Type", "application/json")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
The above command returns JSON structured like this:
{
"translations": [
{
"original": "Hello, world!",
"translated": "¡Hola, mundo!",
"confidence": 0.98
}
],
"metadata": {
"sourceLanguage": "en",
"targetLanguage": "es",
"wordCount": 2,
"creditsUsed": 0.002,
"timestamp": "2024-01-15T12:00:00.000Z"
}
}
Credits
Get team credits
GET /credits
Get current credit balance for the authenticated team
curl -X GET "https://api.i18nagent.ai/credits" \
-H "Authorization: Bearer i18n_your_api_key_here" \
-H "Content-Type: application/json"
const response = await fetch('https://api.i18nagent.ai/credits', {
method: 'GET',
headers: {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
});
const data = await response.json();
console.log(data);
import requests
import json
response = requests.get(
'https://api.i18nagent.ai/credits',
headers={
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
)
print(response.json())
package main
import (
"bytes"
"encoding/json"
"net/http"
)
func main() {
client := &http.Client{}
req, _ := http.NewRequest("GET", "https://api.i18nagent.ai/credits", )
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
req.Header.Add("Content-Type", "application/json")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
The above command returns JSON structured like this:
{
"translations": [
{
"original": "Hello, world!",
"translated": "¡Hola, mundo!",
"confidence": 0.98
}
],
"metadata": {
"sourceLanguage": "en",
"targetLanguage": "es",
"wordCount": 2,
"creditsUsed": 0.002,
"timestamp": "2024-01-15T12:00:00.000Z"
}
}
Languages
List supported languages
GET /languages
Get a list of all supported languages with quality ratings
curl -X GET "https://api.i18nagent.ai/languages" \
-H "Authorization: Bearer i18n_your_api_key_here" \
-H "Content-Type: application/json"
const response = await fetch('https://api.i18nagent.ai/languages', {
method: 'GET',
headers: {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
});
const data = await response.json();
console.log(data);
import requests
import json
response = requests.get(
'https://api.i18nagent.ai/languages',
headers={
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
)
print(response.json())
package main
import (
"bytes"
"encoding/json"
"net/http"
)
func main() {
client := &http.Client{}
req, _ := http.NewRequest("GET", "https://api.i18nagent.ai/languages", )
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
req.Header.Add("Content-Type", "application/json")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
The above command returns JSON structured like this:
{
"translations": [
{
"original": "Hello, world!",
"translated": "¡Hola, mundo!",
"confidence": 0.98
}
],
"metadata": {
"sourceLanguage": "en",
"targetLanguage": "es",
"wordCount": 2,
"creditsUsed": 0.002,
"timestamp": "2024-01-15T12:00:00.000Z"
}
}
Translation Jobs
Get translation history
GET /translations
Get paginated list of translation jobs with optional filters for status, type, target languages, and date range
curl -X GET "https://api.i18nagent.ai/translations" \
-H "Authorization: Bearer i18n_your_api_key_here" \
-H "Content-Type: application/json"
const response = await fetch('https://api.i18nagent.ai/translations', {
method: 'GET',
headers: {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
});
const data = await response.json();
console.log(data);
import requests
import json
response = requests.get(
'https://api.i18nagent.ai/translations',
headers={
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
)
print(response.json())
package main
import (
"bytes"
"encoding/json"
"net/http"
)
func main() {
client := &http.Client{}
req, _ := http.NewRequest("GET", "https://api.i18nagent.ai/translations", )
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
req.Header.Add("Content-Type", "application/json")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
The above command returns JSON structured like this:
{
"translations": [
{
"original": "Hello, world!",
"translated": "¡Hola, mundo!",
"confidence": 0.98
}
],
"metadata": {
"sourceLanguage": "en",
"targetLanguage": "es",
"wordCount": 2,
"creditsUsed": 0.002,
"timestamp": "2024-01-15T12:00:00.000Z"
}
}
Query Parameters
| Parameter | Required | Description |
|---|---|---|
| page | No | Page number for pagination |
| limit | No | Number of items per page |
| status | No | Filter by translation status |
| type | No | Filter by translation type |
| targetLanguages | No | Comma-separated list of target language codes to filter by |
| fromDate | No | Filter translations created after this date |
| toDate | No | Filter translations created before this date |
Get translation details
GET /translations/{id}
Get details of a specific translation by ID
curl -X GET "https://api.i18nagent.ai/translations/{id}" \
-H "Authorization: Bearer i18n_your_api_key_here" \
-H "Content-Type: application/json"
const response = await fetch('https://api.i18nagent.ai/translations/{id}', {
method: 'GET',
headers: {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
});
const data = await response.json();
console.log(data);
import requests
import json
response = requests.get(
'https://api.i18nagent.ai/translations/{id}',
headers={
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
)
print(response.json())
package main
import (
"bytes"
"encoding/json"
"net/http"
)
func main() {
client := &http.Client{}
req, _ := http.NewRequest("GET", "https://api.i18nagent.ai/translations/{id}", )
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
req.Header.Add("Content-Type", "application/json")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
The above command returns JSON structured like this:
{
"translations": [
{
"original": "Hello, world!",
"translated": "¡Hola, mundo!",
"confidence": 0.98
}
],
"metadata": {
"sourceLanguage": "en",
"targetLanguage": "es",
"wordCount": 2,
"creditsUsed": 0.002,
"timestamp": "2024-01-15T12:00:00.000Z"
}
}
Query Parameters
| Parameter | Required | Description |
|---|---|---|
| id | Yes | Translation ID |
Get translation status
GET /translations/{id}/status
Get real-time status of a translation job with detailed progress tracking including: progress percentage, elapsed time, estimated time remaining, checkpoint information, partial completion for multi-language translations, and presigned download URLs for completed results.
curl -X GET "https://api.i18nagent.ai/translations/{id}/status" \
-H "Authorization: Bearer i18n_your_api_key_here" \
-H "Content-Type: application/json"
const response = await fetch('https://api.i18nagent.ai/translations/{id}/status', {
method: 'GET',
headers: {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
});
const data = await response.json();
console.log(data);
import requests
import json
response = requests.get(
'https://api.i18nagent.ai/translations/{id}/status',
headers={
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
)
print(response.json())
package main
import (
"bytes"
"encoding/json"
"net/http"
)
func main() {
client := &http.Client{}
req, _ := http.NewRequest("GET", "https://api.i18nagent.ai/translations/{id}/status", )
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
req.Header.Add("Content-Type", "application/json")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
The above command returns JSON structured like this:
{
"translations": [
{
"original": "Hello, world!",
"translated": "¡Hola, mundo!",
"confidence": 0.98
}
],
"metadata": {
"sourceLanguage": "en",
"targetLanguage": "es",
"wordCount": 2,
"creditsUsed": 0.002,
"timestamp": "2024-01-15T12:00:00.000Z"
}
}
Query Parameters
| Parameter | Required | Description |
|---|---|---|
| id | Yes | Translation ID |
Download translation result
GET /translations/{id}/result
Download the translated content
curl -X GET "https://api.i18nagent.ai/translations/{id}/result" \
-H "Authorization: Bearer i18n_your_api_key_here" \
-H "Content-Type: application/json"
const response = await fetch('https://api.i18nagent.ai/translations/{id}/result', {
method: 'GET',
headers: {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
});
const data = await response.json();
console.log(data);
import requests
import json
response = requests.get(
'https://api.i18nagent.ai/translations/{id}/result',
headers={
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
)
print(response.json())
package main
import (
"bytes"
"encoding/json"
"net/http"
)
func main() {
client := &http.Client{}
req, _ := http.NewRequest("GET", "https://api.i18nagent.ai/translations/{id}/result", )
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
req.Header.Add("Content-Type", "application/json")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
The above command returns JSON structured like this:
{
"translations": [
{
"original": "Hello, world!",
"translated": "¡Hola, mundo!",
"confidence": 0.98
}
],
"metadata": {
"sourceLanguage": "en",
"targetLanguage": "es",
"wordCount": 2,
"creditsUsed": 0.002,
"timestamp": "2024-01-15T12:00:00.000Z"
}
}
Query Parameters
| Parameter | Required | Description |
|---|---|---|
| id | Yes | Translation ID |
| language | No | Language code for specific language result |
Download original file
GET /translations/{id}/original
Download the original uploaded file
curl -X GET "https://api.i18nagent.ai/translations/{id}/original" \
-H "Authorization: Bearer i18n_your_api_key_here" \
-H "Content-Type: application/json"
const response = await fetch('https://api.i18nagent.ai/translations/{id}/original', {
method: 'GET',
headers: {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
});
const data = await response.json();
console.log(data);
import requests
import json
response = requests.get(
'https://api.i18nagent.ai/translations/{id}/original',
headers={
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
)
print(response.json())
package main
import (
"bytes"
"encoding/json"
"net/http"
)
func main() {
client := &http.Client{}
req, _ := http.NewRequest("GET", "https://api.i18nagent.ai/translations/{id}/original", )
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
req.Header.Add("Content-Type", "application/json")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
The above command returns JSON structured like this:
{
"translations": [
{
"original": "Hello, world!",
"translated": "¡Hola, mundo!",
"confidence": 0.98
}
],
"metadata": {
"sourceLanguage": "en",
"targetLanguage": "es",
"wordCount": 2,
"creditsUsed": 0.002,
"timestamp": "2024-01-15T12:00:00.000Z"
}
}
Query Parameters
| Parameter | Required | Description |
|---|---|---|
| id | Yes | Translation ID |
Resume translation from checkpoint
POST /translations/{id}/resume
Resume a failed or interrupted translation from a specific checkpoint or automatically from the last successful checkpoint
curl -X POST "https://api.i18nagent.ai/translations/{id}/resume" \
-H "Authorization: Bearer i18n_your_api_key_here" \
-H "Content-Type: application/json" \
-d '{
"texts": [
"Hello, world!",
"Welcome to our service"
],
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
"sourceLanguage": "en",
"region": "Mexico",
"notes": "Keep technical terms in English, use formal tone"
}'
const response = await fetch('https://api.i18nagent.ai/translations/{id}/resume', {
method: 'POST',
headers: {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
},
body: JSON.stringify({
"texts": [
"Hello, world!",
"Welcome to our service"
],
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
"sourceLanguage": "en",
"region": "Mexico",
"notes": "Keep technical terms in English, use formal tone"
})
});
const data = await response.json();
console.log(data);
import requests
import json
response = requests.post(
'https://api.i18nagent.ai/translations/{id}/resume',
headers={
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
},
json={
"texts": [
"Hello, world!",
"Welcome to our service"
],
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
"sourceLanguage": "en",
"region": "Mexico",
"notes": "Keep technical terms in English, use formal tone"
}
)
print(response.json())
package main
import (
"bytes"
"encoding/json"
"net/http"
)
func main() {
client := &http.Client{}
data := map[string]interface{}{
"texts": []string{"Hello, world!", "Welcome to our service"},
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
}
jsonData, _ := json.Marshal(data)
req, _ := http.NewRequest("POST", "https://api.i18nagent.ai/translations/{id}/resume", bytes.NewBuffer(jsonData))
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
req.Header.Add("Content-Type", "application/json")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
The above command returns JSON structured like this:
{
"translations": [
{
"original": "Hello, world!",
"translated": "¡Hola, mundo!",
"confidence": 0.98
}
],
"metadata": {
"sourceLanguage": "en",
"targetLanguage": "es",
"wordCount": 2,
"creditsUsed": 0.002,
"timestamp": "2024-01-15T12:00:00.000Z"
}
}
Query Parameters
| Parameter | Required | Description |
|---|---|---|
| id | Yes | Translation ID |
Request Body Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
| checkpointId | string | No | Opaque checkpoint ID to resume from (obtained from status endpoint). If not provided and autoDetect is true, will resume from last successful checkpoint. |
| continueToEnd | boolean | No | Whether to continue processing all remaining content after resuming (default: true) |
| autoDetect | boolean | No | Automatically detect and resume from the last successful checkpoint if checkpointId is not provided (default: true) |
Get active translation jobs
GET /translations/jobs/active
Get list of currently active translation jobs
curl -X GET "https://api.i18nagent.ai/translations/jobs/active" \
-H "Authorization: Bearer i18n_your_api_key_here" \
-H "Content-Type: application/json"
const response = await fetch('https://api.i18nagent.ai/translations/jobs/active', {
method: 'GET',
headers: {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
});
const data = await response.json();
console.log(data);
import requests
import json
response = requests.get(
'https://api.i18nagent.ai/translations/jobs/active',
headers={
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
)
print(response.json())
package main
import (
"bytes"
"encoding/json"
"net/http"
)
func main() {
client := &http.Client{}
req, _ := http.NewRequest("GET", "https://api.i18nagent.ai/translations/jobs/active", )
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
req.Header.Add("Content-Type", "application/json")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
The above command returns JSON structured like this:
{
"translations": [
{
"original": "Hello, world!",
"translated": "¡Hola, mundo!",
"confidence": 0.98
}
],
"metadata": {
"sourceLanguage": "en",
"targetLanguage": "es",
"wordCount": 2,
"creditsUsed": 0.002,
"timestamp": "2024-01-15T12:00:00.000Z"
}
}
Download translation results
POST /translations/{jobId}/download
Download completed translation results. Returns presigned download URLs organized by language. URLs expire after 24 hours.
curl -X POST "https://api.i18nagent.ai/translations/{jobId}/download" \
-H "Authorization: Bearer i18n_your_api_key_here" \
-H "Content-Type: application/json"
const response = await fetch('https://api.i18nagent.ai/translations/{jobId}/download', {
method: 'POST',
headers: {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
});
const data = await response.json();
console.log(data);
import requests
import json
response = requests.post(
'https://api.i18nagent.ai/translations/{jobId}/download',
headers={
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
)
print(response.json())
package main
import (
"bytes"
"encoding/json"
"net/http"
)
func main() {
client := &http.Client{}
req, _ := http.NewRequest("POST", "https://api.i18nagent.ai/translations/{jobId}/download", )
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
req.Header.Add("Content-Type", "application/json")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
The above command returns JSON structured like this:
{
"translations": [
{
"original": "Hello, world!",
"translated": "¡Hola, mundo!",
"confidence": 0.98
}
],
"metadata": {
"sourceLanguage": "en",
"targetLanguage": "es",
"wordCount": 2,
"creditsUsed": 0.002,
"timestamp": "2024-01-15T12:00:00.000Z"
}
}
Query Parameters
| Parameter | Required | Description |
|---|---|---|
| jobId | Yes | Translation job ID |
Download translation file for specific language
GET /translations/{jobId}/files/{language}
Download a single translation file for a specific target language. Returns the file content directly with appropriate Content-Type header.
curl -X GET "https://api.i18nagent.ai/translations/{jobId}/files/{language}" \
-H "Authorization: Bearer i18n_your_api_key_here" \
-H "Content-Type: application/json"
const response = await fetch('https://api.i18nagent.ai/translations/{jobId}/files/{language}', {
method: 'GET',
headers: {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
});
const data = await response.json();
console.log(data);
import requests
import json
response = requests.get(
'https://api.i18nagent.ai/translations/{jobId}/files/{language}',
headers={
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
)
print(response.json())
package main
import (
"bytes"
"encoding/json"
"net/http"
)
func main() {
client := &http.Client{}
req, _ := http.NewRequest("GET", "https://api.i18nagent.ai/translations/{jobId}/files/{language}", )
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
req.Header.Add("Content-Type", "application/json")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
The above command returns JSON structured like this:
{
"translations": [
{
"original": "Hello, world!",
"translated": "¡Hola, mundo!",
"confidence": 0.98
}
],
"metadata": {
"sourceLanguage": "en",
"targetLanguage": "es",
"wordCount": 2,
"creditsUsed": 0.002,
"timestamp": "2024-01-15T12:00:00.000Z"
}
}
Query Parameters
| Parameter | Required | Description |
|---|---|---|
| jobId | Yes | Translation job ID |
| language | Yes | Target language code (e.g., 'es', 'fr', 'ja') |
Get translation job status (alternative endpoint)
GET /translation-job/{jobId}
Alternative endpoint for getting translation job status. Returns the same information as /translations/{id}/status but with a different URL format for backward compatibility.
curl -X GET "https://api.i18nagent.ai/translation-job/{jobId}" \
-H "Authorization: Bearer i18n_your_api_key_here" \
-H "Content-Type: application/json"
const response = await fetch('https://api.i18nagent.ai/translation-job/{jobId}', {
method: 'GET',
headers: {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
});
const data = await response.json();
console.log(data);
import requests
import json
response = requests.get(
'https://api.i18nagent.ai/translation-job/{jobId}',
headers={
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
)
print(response.json())
package main
import (
"bytes"
"encoding/json"
"net/http"
)
func main() {
client := &http.Client{}
req, _ := http.NewRequest("GET", "https://api.i18nagent.ai/translation-job/{jobId}", )
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
req.Header.Add("Content-Type", "application/json")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
The above command returns JSON structured like this:
{
"translations": [
{
"original": "Hello, world!",
"translated": "¡Hola, mundo!",
"confidence": 0.98
}
],
"metadata": {
"sourceLanguage": "en",
"targetLanguage": "es",
"wordCount": 2,
"creditsUsed": 0.002,
"timestamp": "2024-01-15T12:00:00.000Z"
}
}
Query Parameters
| Parameter | Required | Description |
|---|---|---|
| jobId | Yes | Translation job ID |
Check translation status with query parameter
GET /check-translation-status
Check translation job status using query parameter format. Alternative endpoint for MCP compatibility.
curl -X GET "https://api.i18nagent.ai/check-translation-status" \
-H "Authorization: Bearer i18n_your_api_key_here" \
-H "Content-Type: application/json"
const response = await fetch('https://api.i18nagent.ai/check-translation-status', {
method: 'GET',
headers: {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
});
const data = await response.json();
console.log(data);
import requests
import json
response = requests.get(
'https://api.i18nagent.ai/check-translation-status',
headers={
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
)
print(response.json())
package main
import (
"bytes"
"encoding/json"
"net/http"
)
func main() {
client := &http.Client{}
req, _ := http.NewRequest("GET", "https://api.i18nagent.ai/check-translation-status", )
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
req.Header.Add("Content-Type", "application/json")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
The above command returns JSON structured like this:
{
"translations": [
{
"original": "Hello, world!",
"translated": "¡Hola, mundo!",
"confidence": 0.98
}
],
"metadata": {
"sourceLanguage": "en",
"targetLanguage": "es",
"wordCount": 2,
"creditsUsed": 0.002,
"timestamp": "2024-01-15T12:00:00.000Z"
}
}
Query Parameters
| Parameter | Required | Description |
|---|---|---|
| jobId | Yes | Translation job ID to check |
Translation
Create translation with streaming progress
POST /translations/stream
Create translation with Server-Sent Events (SSE) for real-time progress updates. Supports text translation only (not files). Returns real-time progress updates as SSE events.
curl -X POST "https://api.i18nagent.ai/translations/stream" \
-H "Authorization: Bearer i18n_your_api_key_here" \
-H "Content-Type: application/json" \
-d '{
"texts": [
"Hello, world!",
"Welcome to our service"
],
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
"sourceLanguage": "en",
"region": "Mexico",
"notes": "Keep technical terms in English, use formal tone"
}'
const response = await fetch('https://api.i18nagent.ai/translations/stream', {
method: 'POST',
headers: {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
},
body: JSON.stringify({
"texts": [
"Hello, world!",
"Welcome to our service"
],
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
"sourceLanguage": "en",
"region": "Mexico",
"notes": "Keep technical terms in English, use formal tone"
})
});
const data = await response.json();
console.log(data);
import requests
import json
response = requests.post(
'https://api.i18nagent.ai/translations/stream',
headers={
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
},
json={
"texts": [
"Hello, world!",
"Welcome to our service"
],
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
"sourceLanguage": "en",
"region": "Mexico",
"notes": "Keep technical terms in English, use formal tone"
}
)
print(response.json())
package main
import (
"bytes"
"encoding/json"
"net/http"
)
func main() {
client := &http.Client{}
data := map[string]interface{}{
"texts": []string{"Hello, world!", "Welcome to our service"},
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
}
jsonData, _ := json.Marshal(data)
req, _ := http.NewRequest("POST", "https://api.i18nagent.ai/translations/stream", bytes.NewBuffer(jsonData))
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
req.Header.Add("Content-Type", "application/json")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
The above command returns JSON structured like this:
{
"translations": [
{
"original": "Hello, world!",
"translated": "¡Hola, mundo!",
"confidence": 0.98
}
],
"metadata": {
"sourceLanguage": "en",
"targetLanguage": "es",
"wordCount": 2,
"creditsUsed": 0.002,
"timestamp": "2024-01-15T12:00:00.000Z"
}
}
Request Body Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
| texts | array | Yes | Array of texts to translate |
| targetLanguage | string | No | Target language code (e.g., 'es', 'fr', 'ja') - for single language translation |
| targetAudience | string | No | Target audience (e.g., 'general', 'technical', 'casual', 'formal') (default: general) |
| industry | string | No | Industry context (e.g., 'technology', 'healthcare', 'finance') (default: technology) |
| sourceLanguage | string | No | Source language code (auto-detected if not provided) |
| region | string | No | Specific region for localization (e.g., 'Spain', 'Mexico', 'Brazil') |
| targetLanguages | array | No | Array of target language codes (e.g., ['es', 'fr', 'zh-CN']) - for multi-language translation. Cannot be used together with targetLanguage. |
| context | string | No | Optional additional context or instructions for the translation (e.g., 'Keep technical terms in English', 'Use formal tone', 'Preserve brand names') |
| pseudoTranslation | boolean | No | Enable pseudo-translation mode for testing i18n implementations without AI translation and NO credit cost. Transforms text with accents, brackets, and optional CJK characters to identify untranslated strings and test UI layout. (default: false) |
| pseudoOptions | object | No | Configuration options for pseudo-translation (only used when pseudoTranslation is true) |
| skipWarnings | boolean | No | Skip source text quality warnings and proceed with translation (default: false). When false, warnings about problematic source text (e.g., hard-to-translate phrases, pluralization issues, text expansion concerns) will be returned in the response under 'validationSuggestions' field. When true, these warnings are suppressed for cleaner output. (default: false) |
Get translation cost estimate
POST /translations/estimate
Calculate word count and credits required for translation
curl -X POST "https://api.i18nagent.ai/translations/estimate" \
-H "Authorization: Bearer i18n_your_api_key_here" \
-H "Content-Type: application/json" \
-d '{
"texts": [
"Hello, world!",
"Welcome to our service"
],
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
"sourceLanguage": "en",
"region": "Mexico",
"notes": "Keep technical terms in English, use formal tone"
}'
const response = await fetch('https://api.i18nagent.ai/translations/estimate', {
method: 'POST',
headers: {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
},
body: JSON.stringify({
"texts": [
"Hello, world!",
"Welcome to our service"
],
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
"sourceLanguage": "en",
"region": "Mexico",
"notes": "Keep technical terms in English, use formal tone"
})
});
const data = await response.json();
console.log(data);
import requests
import json
response = requests.post(
'https://api.i18nagent.ai/translations/estimate',
headers={
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
},
json={
"texts": [
"Hello, world!",
"Welcome to our service"
],
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
"sourceLanguage": "en",
"region": "Mexico",
"notes": "Keep technical terms in English, use formal tone"
}
)
print(response.json())
package main
import (
"bytes"
"encoding/json"
"net/http"
)
func main() {
client := &http.Client{}
data := map[string]interface{}{
"texts": []string{"Hello, world!", "Welcome to our service"},
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
}
jsonData, _ := json.Marshal(data)
req, _ := http.NewRequest("POST", "https://api.i18nagent.ai/translations/estimate", bytes.NewBuffer(jsonData))
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
req.Header.Add("Content-Type", "application/json")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
The above command returns JSON structured like this:
{
"translations": [
{
"original": "Hello, world!",
"translated": "¡Hola, mundo!",
"confidence": 0.98
}
],
"metadata": {
"sourceLanguage": "en",
"targetLanguage": "es",
"wordCount": 2,
"creditsUsed": 0.002,
"timestamp": "2024-01-15T12:00:00.000Z"
}
}
Request Body Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
| content | string | Yes | Content to analyze |
| fileType | string | No | File type for content analysis (default: txt) |
Analysis
Analyze content for translation readiness
POST /analyze
Analyze content to identify potential issues and get improvement suggestions before translation. Returns language detection, content type analysis, tone detection, translation strategy recommendations, and quality metrics. This endpoint consumes credits at the same rate as translation (0.001 credits per word).
curl -X POST "https://api.i18nagent.ai/analyze" \
-H "Authorization: Bearer i18n_your_api_key_here" \
-H "Content-Type: application/json" \
-d '{
"texts": [
"Hello, world!",
"Welcome to our service"
],
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
"sourceLanguage": "en",
"region": "Mexico",
"notes": "Keep technical terms in English, use formal tone"
}'
const response = await fetch('https://api.i18nagent.ai/analyze', {
method: 'POST',
headers: {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
},
body: JSON.stringify({
"texts": [
"Hello, world!",
"Welcome to our service"
],
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
"sourceLanguage": "en",
"region": "Mexico",
"notes": "Keep technical terms in English, use formal tone"
})
});
const data = await response.json();
console.log(data);
import requests
import json
response = requests.post(
'https://api.i18nagent.ai/analyze',
headers={
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
},
json={
"texts": [
"Hello, world!",
"Welcome to our service"
],
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
"sourceLanguage": "en",
"region": "Mexico",
"notes": "Keep technical terms in English, use formal tone"
}
)
print(response.json())
package main
import (
"bytes"
"encoding/json"
"net/http"
)
func main() {
client := &http.Client{}
data := map[string]interface{}{
"texts": []string{"Hello, world!", "Welcome to our service"},
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
}
jsonData, _ := json.Marshal(data)
req, _ := http.NewRequest("POST", "https://api.i18nagent.ai/analyze", bytes.NewBuffer(jsonData))
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
req.Header.Add("Content-Type", "application/json")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
The above command returns JSON structured like this:
{
"translations": [
{
"original": "Hello, world!",
"translated": "¡Hola, mundo!",
"confidence": 0.98
}
],
"metadata": {
"sourceLanguage": "en",
"targetLanguage": "es",
"wordCount": 2,
"creditsUsed": 0.002,
"timestamp": "2024-01-15T12:00:00.000Z"
}
}
Request Body Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
| targetLanguage | string | Yes | Target language code for translation |
| targetAudience | string | No | Target audience (default: general) |
| industry | string | No | Industry context (default: general) |
| sourceLanguage | string | No | Source language code (auto-detected if not provided) |
| region | string | No | Specific region for localization |
| content | object | Yes | Content to analyze (text, array of texts, or structured object) |
| fileType | string | No | Optional file type if content is from a file |
Namespace Translations
Upload translation file for namespace reuse
POST /namespaces/{namespace}/translations/upload
Upload existing translation file to a namespace for future reuse. This enables cost optimization by reusing previously translated strings. The file is processed and translation pairs are extracted for caching.
curl -X POST "https://api.i18nagent.ai/namespaces/{namespace}/translations/upload" \
-H "Authorization: Bearer i18n_your_api_key_here" \
-H "Content-Type: application/json" \
-d '{
"texts": [
"Hello, world!",
"Welcome to our service"
],
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
"sourceLanguage": "en",
"region": "Mexico",
"notes": "Keep technical terms in English, use formal tone"
}'
const response = await fetch('https://api.i18nagent.ai/namespaces/{namespace}/translations/upload', {
method: 'POST',
headers: {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
},
body: JSON.stringify({
"texts": [
"Hello, world!",
"Welcome to our service"
],
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
"sourceLanguage": "en",
"region": "Mexico",
"notes": "Keep technical terms in English, use formal tone"
})
});
const data = await response.json();
console.log(data);
import requests
import json
response = requests.post(
'https://api.i18nagent.ai/namespaces/{namespace}/translations/upload',
headers={
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
},
json={
"texts": [
"Hello, world!",
"Welcome to our service"
],
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
"sourceLanguage": "en",
"region": "Mexico",
"notes": "Keep technical terms in English, use formal tone"
}
)
print(response.json())
package main
import (
"bytes"
"encoding/json"
"net/http"
)
func main() {
client := &http.Client{}
data := map[string]interface{}{
"texts": []string{"Hello, world!", "Welcome to our service"},
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
}
jsonData, _ := json.Marshal(data)
req, _ := http.NewRequest("POST", "https://api.i18nagent.ai/namespaces/{namespace}/translations/upload", bytes.NewBuffer(jsonData))
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
req.Header.Add("Content-Type", "application/json")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
The above command returns JSON structured like this:
{
"translations": [
{
"original": "Hello, world!",
"translated": "¡Hola, mundo!",
"confidence": 0.98
}
],
"metadata": {
"sourceLanguage": "en",
"targetLanguage": "es",
"wordCount": 2,
"creditsUsed": 0.002,
"timestamp": "2024-01-15T12:00:00.000Z"
}
}
Query Parameters
| Parameter | Required | Description |
|---|---|---|
| namespace | Yes | Namespace identifier (3-50 chars, alphanumeric + hyphens/underscores only) |
Get namespace translation statistics
GET /namespaces/{namespace}/translations/stats
Get statistics about uploaded translation files and cache reuse for a namespace
curl -X GET "https://api.i18nagent.ai/namespaces/{namespace}/translations/stats" \
-H "Authorization: Bearer i18n_your_api_key_here" \
-H "Content-Type: application/json"
const response = await fetch('https://api.i18nagent.ai/namespaces/{namespace}/translations/stats', {
method: 'GET',
headers: {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
});
const data = await response.json();
console.log(data);
import requests
import json
response = requests.get(
'https://api.i18nagent.ai/namespaces/{namespace}/translations/stats',
headers={
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
)
print(response.json())
package main
import (
"bytes"
"encoding/json"
"net/http"
)
func main() {
client := &http.Client{}
req, _ := http.NewRequest("GET", "https://api.i18nagent.ai/namespaces/{namespace}/translations/stats", )
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
req.Header.Add("Content-Type", "application/json")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
The above command returns JSON structured like this:
{
"translations": [
{
"original": "Hello, world!",
"translated": "¡Hola, mundo!",
"confidence": 0.98
}
],
"metadata": {
"sourceLanguage": "en",
"targetLanguage": "es",
"wordCount": 2,
"creditsUsed": 0.002,
"timestamp": "2024-01-15T12:00:00.000Z"
}
}
Query Parameters
| Parameter | Required | Description |
|---|---|---|
| namespace | Yes | Namespace identifier |
List uploaded translation files in namespace
GET /namespaces/{namespace}/translations/files
Get paginated list of uploaded translation files for a namespace
curl -X GET "https://api.i18nagent.ai/namespaces/{namespace}/translations/files" \
-H "Authorization: Bearer i18n_your_api_key_here" \
-H "Content-Type: application/json"
const response = await fetch('https://api.i18nagent.ai/namespaces/{namespace}/translations/files', {
method: 'GET',
headers: {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
});
const data = await response.json();
console.log(data);
import requests
import json
response = requests.get(
'https://api.i18nagent.ai/namespaces/{namespace}/translations/files',
headers={
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
)
print(response.json())
package main
import (
"bytes"
"encoding/json"
"net/http"
)
func main() {
client := &http.Client{}
req, _ := http.NewRequest("GET", "https://api.i18nagent.ai/namespaces/{namespace}/translations/files", )
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
req.Header.Add("Content-Type", "application/json")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
The above command returns JSON structured like this:
{
"translations": [
{
"original": "Hello, world!",
"translated": "¡Hola, mundo!",
"confidence": 0.98
}
],
"metadata": {
"sourceLanguage": "en",
"targetLanguage": "es",
"wordCount": 2,
"creditsUsed": 0.002,
"timestamp": "2024-01-15T12:00:00.000Z"
}
}
Query Parameters
| Parameter | Required | Description |
|---|---|---|
| namespace | Yes | Namespace identifier |
| limit | No | Maximum number of files to return |
| offset | No | Number of files to skip for pagination |
Delete uploaded translation file
DELETE /namespaces/{namespace}/translations/files/{fileId}
Delete an uploaded translation file and all associated translation pairs from the cache
curl -X DELETE "https://api.i18nagent.ai/namespaces/{namespace}/translations/files/{fileId}" \
-H "Authorization: Bearer i18n_your_api_key_here" \
-H "Content-Type: application/json"
const response = await fetch('https://api.i18nagent.ai/namespaces/{namespace}/translations/files/{fileId}', {
method: 'DELETE',
headers: {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
});
const data = await response.json();
console.log(data);
import requests
import json
response = requests.delete(
'https://api.i18nagent.ai/namespaces/{namespace}/translations/files/{fileId}',
headers={
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
)
print(response.json())
package main
import (
"bytes"
"encoding/json"
"net/http"
)
func main() {
client := &http.Client{}
req, _ := http.NewRequest("DELETE", "https://api.i18nagent.ai/namespaces/{namespace}/translations/files/{fileId}", )
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
req.Header.Add("Content-Type", "application/json")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
The above command returns JSON structured like this:
{
"translations": [
{
"original": "Hello, world!",
"translated": "¡Hola, mundo!",
"confidence": 0.98
}
],
"metadata": {
"sourceLanguage": "en",
"targetLanguage": "es",
"wordCount": 2,
"creditsUsed": 0.002,
"timestamp": "2024-01-15T12:00:00.000Z"
}
}
Query Parameters
| Parameter | Required | Description |
|---|---|---|
| namespace | Yes | Namespace identifier |
| fileId | Yes | File ID to delete |
Upload parallel translation files
POST /translations/upload-parallel
Upload source and target files in parallel for translation pair extraction and caching. Both files should have the same structure and file type.
curl -X POST "https://api.i18nagent.ai/translations/upload-parallel" \
-H "Authorization: Bearer i18n_your_api_key_here" \
-H "Content-Type: application/json" \
-d '{
"texts": [
"Hello, world!",
"Welcome to our service"
],
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
"sourceLanguage": "en",
"region": "Mexico",
"notes": "Keep technical terms in English, use formal tone"
}'
const response = await fetch('https://api.i18nagent.ai/translations/upload-parallel', {
method: 'POST',
headers: {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
},
body: JSON.stringify({
"texts": [
"Hello, world!",
"Welcome to our service"
],
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
"sourceLanguage": "en",
"region": "Mexico",
"notes": "Keep technical terms in English, use formal tone"
})
});
const data = await response.json();
console.log(data);
import requests
import json
response = requests.post(
'https://api.i18nagent.ai/translations/upload-parallel',
headers={
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
},
json={
"texts": [
"Hello, world!",
"Welcome to our service"
],
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
"sourceLanguage": "en",
"region": "Mexico",
"notes": "Keep technical terms in English, use formal tone"
}
)
print(response.json())
package main
import (
"bytes"
"encoding/json"
"net/http"
)
func main() {
client := &http.Client{}
data := map[string]interface{}{
"texts": []string{"Hello, world!", "Welcome to our service"},
"targetLanguage": "es",
"targetAudience": "general",
"industry": "technology",
}
jsonData, _ := json.Marshal(data)
req, _ := http.NewRequest("POST", "https://api.i18nagent.ai/translations/upload-parallel", bytes.NewBuffer(jsonData))
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
req.Header.Add("Content-Type", "application/json")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
The above command returns JSON structured like this:
{
"translations": [
{
"original": "Hello, world!",
"translated": "¡Hola, mundo!",
"confidence": 0.98
}
],
"metadata": {
"sourceLanguage": "en",
"targetLanguage": "es",
"wordCount": 2,
"creditsUsed": 0.002,
"timestamp": "2024-01-15T12:00:00.000Z"
}
}
Files
Download file from storage
GET /files/{filePath}
Serves files from local storage (development) or S3 (production). Used for accessing uploaded and translated files.
curl -X GET "https://api.i18nagent.ai/files/{filePath}" \
-H "Authorization: Bearer i18n_your_api_key_here" \
-H "Content-Type: application/json"
const response = await fetch('https://api.i18nagent.ai/files/{filePath}', {
method: 'GET',
headers: {
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
});
const data = await response.json();
console.log(data);
import requests
import json
response = requests.get(
'https://api.i18nagent.ai/files/{filePath}',
headers={
'Authorization': 'Bearer i18n_your_api_key_here',
'Content-Type': 'application/json'
}
)
print(response.json())
package main
import (
"bytes"
"encoding/json"
"net/http"
)
func main() {
client := &http.Client{}
req, _ := http.NewRequest("GET", "https://api.i18nagent.ai/files/{filePath}", )
req.Header.Add("Authorization", "Bearer i18n_your_api_key_here")
req.Header.Add("Content-Type", "application/json")
resp, _ := client.Do(req)
defer resp.Body.Close()
}
The above command returns JSON structured like this:
{
"translations": [
{
"original": "Hello, world!",
"translated": "¡Hola, mundo!",
"confidence": 0.98
}
],
"metadata": {
"sourceLanguage": "en",
"targetLanguage": "es",
"wordCount": 2,
"creditsUsed": 0.002,
"timestamp": "2024-01-15T12:00:00.000Z"
}
}
Query Parameters
| Parameter | Required | Description |
|---|---|---|
| filePath | Yes | File path including any subdirectories (e.g., 'uploads/test-file.json' or 'translations/result.json') |
Errors
The i18n-agent API uses the following error codes:
| Error Code | Meaning |
|---|---|
| 400 | Bad Request -- Your request is invalid. |
| 401 | Unauthorized -- Your API key is invalid. |
| 402 | Payment Required -- Insufficient credits in your account. |
| 403 | Forbidden -- Your API key is inactive or team not found. |
| 404 | Not Found -- The specified resource could not be found. |
| 500 | Internal Server Error -- We had a problem with our server. Try again later. |
| 503 | Service Unavailable -- We're temporarily offline for maintenance. Please try again later. |
Error Response Format
{
"error": "Detailed error message describing what went wrong",
"success": false
}