API Documentation
Integrate powerful translation into your applications with our simple REST API.
Getting Started
Bidh an TranslateAPI a' toirt eadar-aghaidh REST sìmplidh dhut airson teacsa eadar 180+ cànan a thionndadh. Bidh freagairtean JSON air ais aig gach ceann-phuing API.
1. Get Your API Key
Create a free account and generate your API key from the dashboard:
- Sign up at translateapi.ai/signup
- Go to Dashboard → API Keys
- Click "Create API Key" and copy your key
API keys start with ta_ followed by 56 hex characters.
https://api.translateapi.ai/api/v1/2. Make Your First Request
Replace YOUR_API_KEY with the key from your dashboard:
curl -X POST https://api.translateapi.ai/api/v1/translate/ \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_KEY" \
-d '{
"text": "Hello, world!",
"target_language": "es"
}'
import requests
response = requests.post(
"https://api.translateapi.ai/api/v1/translate/",
headers={
"Authorization": "Bearer YOUR_API_KEY",
"Content-Type": "application/json"
},
json={
"text": "Hello, world!",
"target_language": "es"
}
)
result = response.json()
print(result["translated_text"]) # "Hola, mundo!"
const response = await fetch("https://api.translateapi.ai/api/v1/translate/", {
method: "POST",
headers: {
"Authorization": "Bearer YOUR_API_KEY",
"Content-Type": "application/json"
},
body: JSON.stringify({
text: "Hello, world!",
target_language: "es"
})
});
const result = await response.json();
console.log(result.translated_text); // "Hola, mundo!"
$ch = curl_init("https://api.translateapi.ai/api/v1/translate/");
curl_setopt_array($ch, [
CURLOPT_RETURNTRANSFER => true,
CURLOPT_POST => true,
CURLOPT_HTTPHEADER => [
"Authorization: Bearer YOUR_API_KEY",
"Content-Type: application/json"
],
CURLOPT_POSTFIELDS => json_encode([
"text" => "Hello, world!",
"target_language" => "es"
])
]);
$result = json_decode(curl_exec($ch), true);
echo $result["translated_text"]; // "Hola, mundo!"
payload := strings.NewReader(`{
"text": "Hello, world!",
"target_language": "es"
}`)
req, _ := http.NewRequest("POST", "https://api.translateapi.ai/api/v1/translate/", payload)
req.Header.Set("Authorization", "Bearer YOUR_API_KEY")
req.Header.Set("Content-Type", "application/json")
resp, _ := http.DefaultClient.Do(req)
defer resp.Body.Close()
var result map[string]interface{}
json.NewDecoder(resp.Body).Decode(&result)
fmt.Println(result["translated_text"]) // "Hola, mundo!"
var client = new HttpClient();
client.DefaultRequestHeaders.Add("Authorization", "Bearer YOUR_API_KEY");
var content = new StringContent(
JsonSerializer.Serialize(new {
text = "Hello, world!",
target_language = "es"
}),
Encoding.UTF8,
"application/json"
);
var response = await client.PostAsync("https://api.translateapi.ai/api/v1/translate/", content);
var result = JsonSerializer.Deserialize<JsonElement>(
await response.Content.ReadAsStringAsync()
);
Console.WriteLine(result.GetProperty("translated_text")); // "Hola, mundo!"
Freagairt
{
"translated_text": "Hola, mundo!",
"source_language": "en",
"target_language": "es",
"translations": {
"es": "Hola, mundo!"
},
"character_count": 13,
"translation_time": 0.45
}
Dearbhadh
Dearbhaich na h-iarrtasan agad le iuchair API. 'S urrainn dhut iuchraichean API a chruthachadh bhon choimpiutair agad dashboard.
Header Authentication (recommended)
Authorization: Bearer ta_your_api_key_here
ApiKey Header
Authorization: ApiKey ta_your_api_key_here
Query Parameter
https://api.translateapi.ai/api/v1/translate/?api_key=ta_your_api_key_here
Atharraich teacsa
Atharraich teacsa gu cànan targaid a-mhàin.
POST https://api.translateapi.ai/api/v1/translate/
Request Body
| Paramadair | Seòrsa | Riatanas | Cur-seachad |
|---|---|---|---|
text |
string | Tha | Teacsa ri eadar-theangachadh (suas ri 50,000 caractar) |
target_language |
string | Tha* | Target language code (e.g., "es", "fr", "de") |
source_language |
string | Chan eil | Source language code. Default: "auto" (auto-detect) |
engine |
string | Chan eil | Translation engine: "auto" (default), "huggingface", or "madlad". See Translation Models. Translation Models. |
* Cleachd target_language (string) airson aon chànan no target_languages (array) airson iomadach. Seall Multi-Target Translation.
Freagairt
{
"translated_text": "Hola, mundo!",
"source_language": "en",
"target_language": "es",
"translations": {
"es": "Hola, mundo!"
},
"character_count": 13,
"translation_time": 0.45
}
source_language or set it to "auto" to automatically detect the source language. The detected language is returned in the source_language response field.
Multi-Target Translation
Atharraich teacsa gu diofar chànanan ann an iarrtas a-mhàin. Cleachdas seo an aon cheann-uidhe ri eadar-theangachadh a-mhàin.
POST https://api.translateapi.ai/api/v1/translate/
Request Body
{
"text": "Hello, world!",
"target_languages": ["es", "fr", "de", "ja"],
"source_language": "en"
}
Cleachd target_languages (array) an àite target_language (string) airson iomadh amas.
Freagairt
{
"source_language": "en",
"translations": {
"es": "Hola, mundo!",
"fr": "Bonjour, monde!",
"de": "Hallo, Welt!",
"ja": "こんにちは、世界!"
},
"character_count": 52,
"translation_time": 2.31
}
Batch Translation
Translation multiple texts at once with async processing. Submit a batch and poll for results.
POST https://api.translateapi.ai/api/v1/translate/batch/
Step 1: Submit Batch
curl -X POST https://api.translateapi.ai/api/v1/translate/batch/ \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"texts": ["Hello", "Goodbye", "Thank you"],
"target_language": "es",
"source_language": "en"
}'
Freagairt (HTTP 202 Accepted)
{
"job_id": "67535b2b-c9e3-4f82-9499-e237edbc1dd8",
"status": "pending",
"total_texts": 3,
"queue_position": 1,
"source_language": "en",
"target_languages": ["es"],
"character_count": 22,
"credits_remaining": -1,
"poll_url": "https://api.translateapi.ai/api/v1/jobs/67535b2b-c9e3-4f82-9499-e237edbc1dd8/"
}
Ceum 2: Poll for Results
GET https://api.translateapi.ai/api/v1/jobs/{job_id}/
Polling Example (Python)
import time, requests
job_id = response.json()["job_id"]
total = response.json()["total_texts"]
headers = {"Authorization": "Bearer YOUR_API_KEY"}
print(f"Batch submitted: {total} texts (job {job_id})")
while True:
result = requests.get(f"https://api.translateapi.ai/api/v1/jobs/{job_id}/", headers=headers).json()
status = result["status"]
processed = result.get("processed_texts", 0)
progress = result.get("progress_percentage", 0)
if status == "completed":
print(f"Done: {processed}/{total} in {result.get('processing_time', 0):.1f}s")
translations = result["result_data"]["translations"]
break
elif status == "failed":
raise Exception(result.get("error_message", "Translation failed"))
elif status == "pending":
print(f"Queued (position {result.get('queue_position', '?')})")
else:
print(f"[{status}] {processed}/{total} ({progress:.0f}%)")
time.sleep(3)
Freagairt (crìochnaichte)
{
"job_id": "67535b2b-...",
"status": "completed",
"processed_texts": 3,
"total_texts": 3,
"progress_percentage": 100.0,
"processing_time": 10.65,
"result_data": {
"translations": ["Hola", "Adiós", "Gracias"],
"source_language": "en",
"target_language": "es",
"character_count": 22,
"processing_time": 10.65
}
}
Real-Time Progress Tracking
| Field | Cur-seachad |
|---|---|
status |
pending (queued, waiting for a GPU worker), processing (actively translating), completed, failed |
processed_texts |
Number of individual translations completed so far. Updates in real time as each text is translated. |
progress_percentage |
Completion percentage (0-100). Calculated from processed_texts / total_texts. |
queue_position |
Your position in the queue when status is "pending" (1 = next up). Null when processing or completed. Use this to estimate wait time and show queue status to your users. |
processing_time |
Total processing time in seconds (available when completed). |
Multi-Language Batch
Atharraich iomadh teacsa gu iomadh cànan aig an aon àm:
{
"texts": ["Hello", "Goodbye"],
"target_languages": ["es", "fr"],
"source_language": "en"
}
Crìochnaich an toradh_dàta
{
"translations": [
{"es": "Hola", "fr": "Bonjour"},
{"es": "Adiós", "fr": "Au revoir"}
],
"source_language": "en",
"target_languages": ["es", "fr"],
"character_count": 24,
"processing_time": 2.45
}
Paramadairean iarrtais
| Paramadair | Seòrsa | Riatanas | Cur-seachad |
|---|---|---|---|
texts |
array | Tha | Sreath de shreathan ri eadar-theangachadh |
target_language |
string | Tha* | Còd na cànain-targaid airson cànan singilte |
target_languages |
array | Tha* | Array of target language codes for multiple languages |
source_language |
string | Chan eil | Source language code. Default: "auto" |
* Cuir an dàrna cuid target_language no target_languages, chan e an dà chuid.
Best Practices for Large Workloads
- Send 1 target language per batch request. This keeps each batch fast and makes progress easy to track.
- Keep batches at 50-100 texts. Smaller batches complete faster and give you more frequent progress updates.
- Submit as many batch jobs as you need — our GPU cluster auto-scales to handle demand. Jobs are processed in parallel across multiple instances.
- On timeout, re-poll the same job_id instead of submitting a new batch. The original job may still be processing on the GPU.
- Poll every 3-5 seconds. More frequent polling does not speed up processing.
Document Translation
Translation entire documents while preserving formatting. Supports multiple file formats.
POST https://api.translateapi.ai/api/v1/translate/document/
Iarrtas (multipart/form-data)
| Paramadair | Seòrsa | Riatanas | Cur-seachad |
|---|---|---|---|
file |
file | Tha | An sgrìobhainn ri eadar-theangachadh (suas ri 10MB) |
target_language |
string | Tha | Target language code (e.g., "es", "fr", "de") |
source_language |
string | Chan eil | Source language code. Default: "auto" (auto-detect) |
Seòrsan faidhle a tha air an taic
Documents
.txt- Plain text files.docx- Sgrìoban Word.pdf- Sgrìobhainnean PDF (a' gabhail a-steach scanned)
Data & Localization
.json- Files JSON (translates string values).xml- XML files.srt- Faidhlichean fo-thiotalan.po/.pot- Gettext translation files
Images (OCR)
.jpg/.jpeg- Dealbhan JPEG (OCR).png- Dealbhan PNG (OCR).tiff/.tif- Dealbhan TIFF (OCR).bmp- Dealbhan BMP (OCR).webp- Dealbhan WebP (OCR)
Samhla (cURL)
# Translate a Word document
curl -X POST https://api.translateapi.ai/api/v1/translate/document/ \
-H "Authorization: Bearer YOUR_API_KEY" \
-F "file=@document.docx" \
-F "target_language=es" \
-F "source_language=en"
# Translate text from an image (OCR)
curl -X POST https://api.translateapi.ai/api/v1/translate/document/ \
-H "Authorization: Bearer YOUR_API_KEY" \
-F "file=@scanned_page.jpg" \
-F "target_language=es" \
-F "source_language=en"
Freagairt
{
"id": 123,
"original_filename": "document.docx",
"file_type": "docx",
"source_language": "en",
"target_language": "es",
"status": "completed",
"character_count": 5420,
"translated_file_url": "/media/translated/document_es.docx",
"created_at": "2024-01-15T10:30:00Z",
"completed_at": "2024-01-15T10:30:05Z"
}
GET https://api.translateapi.ai/api/v1/translate/document/{id}/
Sgrùd staid eadar-theangachadh sgrìobhainn no faigh URL an luchdaidh a-nuas.
Luachan staid
pending |
Chaidh am faidhle a luchdadh suas, a' feitheamh ri a phròiseasadh |
processing |
Translation in progress |
completed |
Translation complete, download available |
failed |
Dh'fhàillig an eadar-theangachadh (check error_message) |
Languages supported
Faigh liosta de na cànanan uile a gheibh taic.
GET https://api.translateapi.ai/api/v1/translate/languages/
Freagairt
{
"count": 186,
"results": [
{"iso": "en", "name": "English", "en_label": "English"},
{"iso": "es", "name": "Español", "en_label": "Spanish"},
{"iso": "fr", "name": "Français", "en_label": "French"},
...
]
}
Submit Corrections
Suggest a better translation for a given source text. Corrections enter a moderation queue; once approved by our team they surface as "Community Verified" translations for that text.
https://translateapi.ai/api/v1/ (not the api. translation host), and requires an API key.POST https://translateapi.ai/api/v1/suggestions/
Request Body
| Parameter | Seòrsa | Cur-seachad |
|---|---|---|
source_text |
string | The original text that was translated. |
source_language |
string | Source language code (e.g. "en"). |
target_language |
string | Target language code (e.g. "es"). |
machine_translation |
string | The machine translation you are correcting. |
suggested_translation |
string | Your improved translation (must differ from machine_translation). |
Example Request
curl -X POST https://translateapi.ai/api/v1/suggestions/ \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"source_text": "Hello, world!",
"source_language": "en",
"target_language": "es",
"machine_translation": "Hola, mundo!",
"suggested_translation": "¡Hola, mundo!"
}'
Freagairt
{
"id": 4213,
"status": "pending",
"created": true,
"message": "Correction submitted for review."
}
Re-submitting the same source/language pair updates your existing suggestion instead of creating a duplicate (returns 200 with "created": false).
Translation Models
Bidh sinn a' cleachdadh modalan eadar-theangachaidh le còd fosgailte a tha a' ruith air ar bun-structar GPU fhèin. Tha cead-siubhail coimhearsnachd aig a h-uile modal (Apache 2.0).
| Mòdail | Teangachan | As fheàrr airson |
|---|---|---|
| Helsinki-NLP/opus-mt | 50+ language pairs | Teangachan coitcheann (EN, ES, FR, DE, IT, PT, RU, ZH, JA, msaa.) |
| Google MADLAD-400 | 400+ languages | Languages rare, comprehensive coverage |
Bidh an API a' taghadh gu fèin-obrachail a' mhodail as fheàrr airson a' phàrtaidh chànain agad. 'S urrainn dhut roghainn a shònrachadh engine paramadair:
| Inneal | Cur-seachad |
|---|---|
"auto" |
A' bhun-loidhne. Feuch ri HuggingFace a chleachdadh an toiseach, an uair sin thèid air ais gu MADLAD-400 |
"huggingface" |
Force HuggingFace/MarianMT (fastest, 50+ languages) |
"madlad" |
Force MADLAD-400 (400+ languages) |
Cùram nam mearachd
Bidh an API a' cleachdadh còdan stàite HTTP caochlaideach gus soirbheachas no mearachd a shealltainn.
| Còd | Cur-seachad |
|---|---|
| 200 | Shoirbhich leis |
| 202 | Accepted — Batch job queued successfully |
| 400 | Bad Request — Invalid parameters (missing text, unsupported language, etc.) |
| 401 | Gun chead - Iuchair API mì-dhligheach no air chall |
| 402 | Payment Required — Character credits exhausted. Upgrade your plan or purchase a top-up. |
| 403 | Forbidden — API key lacks required scope or IP not in whitelist |
| 503 | Service Unavailable - Translation engine temporarily down |
Fòrmat freagairt na mearachd
{
"error": "insufficient_credits",
"credits_remaining": 0
}
Usage Limits
TranslateAPI has no request rate limits. All requests are queued and processed by our auto-scaling GPU cluster. Your plan determines your monthly character allowance:
| Plana | Characters/Month | Batch API | Documents | Praghas | |
|---|---|---|---|---|---|
| Saor | 250,000 | — | — | $0 | Clàraich an-asgaidh |
| Starter | 2,500,000 | $9/mìosan | Subscribe | ||
| Pro | 10,000,000 | $29/mìosan | Subscribe | ||
| Gnìomhachas | 40,000,000 | $79/mìosan | Subscribe | ||
| Sgèilich | 125,000,000 | $199/mìosan | Subscribe | ||
| Enterprise | Unlimited | $499/mìosan | Contact Sales |
Nuair a thèid thu thairis air an teannachadh agad, gheibh thu 402 Payment Required chan eil freagairt ann gus an ath mhìos no gus an ùraich thu.
Auto-Scaling Cloud Infrastructure
TranslateAPI runs on dedicated NVIDIA A100 GPU instances with automatic horizontal scaling. When demand increases, additional GPU instances are launched within minutes to maintain fast response times. All requests are queued and processed — send hundreds of concurrent requests and they'll all be handled. Real-time translations get priority, batch jobs process in the background.
Need More Credits?
Run out of characters mid-month? Purchase a one-time credit top-up without changing your plan. View top-up packs