API-documentatie

Integreer krachtige vertaling in uw toepassingen met onze eenvoudige REST API.

Starten

De TranslateAPI biedt een eenvoudige REST-interface voor het vertalen van tekst tussen 180+ talen. Alle API-eindpunten geven JSON-responsen terug.

1. Get Your API Key

Create a free account and generate your API key from the dashboard:

  1. Sign up at translateapi.ai/signup
  2. Go to Dashboard → API-sleutels
  3. Click "Create API Key" and copy your key

API keys start with ta_ followed by 56 hex characters.

Basis-URL: 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!"
Respons
{
    "translated_text": "Hola, mundo!",
    "source_language": "en",
    "target_language": "es",
    "translations": {
        "es": "Hola, mundo!"
    },
    "character_count": 13,
    "translation_time": 0.45
}

Authenticatie

Authenticeer uw verzoeken met behulp van een API-sleutel. U kunt API-sleutels aanmaken vanuit uw dashboard.

Kop-authenticatie (aanbevolen)
Authorization: Bearer ta_your_api_key_here
ApiKey Header
Authorization: ApiKey ta_your_api_key_here
Zoekparameter
https://api.translateapi.ai/api/v1/translate/?api_key=ta_your_api_key_here
Houd uw API sleutels veilig! Laat ze niet onthullen in client-side code of openbare repositories.

Tekst vertalen

Vertaal tekst naar één doeltaal.

POST https://api.translateapi.ai/api/v1/translate/
Verzoek om een instantie
Parameter Type Vereist Omschrijving
text string Ja. Tekst om te vertalen (max 50.000 tekens)
target_language string Ja* Target language code (e.g., "es", "fr", "de")
source_language string Nee Source language code. Default: "auto" (auto-detect)
engine string Nee Translation engine: "auto" (default), "huggingface", or "madlad". See Translation Models. Vertaalmodellen.

* Gebruik target_language (tekenreeks) voor één taal of target_languages (array) voor meerdere. Zie Multi-Target-vertaling.

Respons
{
    "translated_text": "Hola, mundo!",
    "source_language": "en",
    "target_language": "es",
    "translations": {
        "es": "Hola, mundo!"
    },
    "character_count": 13,
    "translation_time": 0.45
}
Auto-Detection: Omit 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-vertaling

Vertaal tekst naar meerdere talen in één verzoek. Gebruikt hetzelfde eindpunt als enkele vertaling.

POST https://api.translateapi.ai/api/v1/translate/
Verzoek om een instantie
{
    "text": "Hello, world!",
    "target_languages": ["es", "fr", "de", "ja"],
    "source_language": "en"
}

Gebruik target_languages (array) in plaats van target_language (string) voor meerdere doelen.

Respons
{
    "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
}
Tip: U kunt vertalen naar maximaal 50 talen in een enkele aanvraag.

Batchvertaling

Vertaal meerdere teksten tegelijk met async verwerking. Stuur een batch en poll voor resultaten.

Limits: Max 100 texts per batch, max 300 total items (texts × target languages). Jobs time out 45 minutes after processing starts.
Speed: Common languages (ES, FR, DE) use fast models (~0.1s/text). Less common languages use our multilingual model (~1-3s/text).
POST https://api.translateapi.ai/api/v1/translate/batch/
Stap 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"
}'
Respons (HTTP 202 aanvaard)
{
    "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/"
}
Stap 2: Bespreking van de resultaten
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)
Respons (voltooid)
{
    "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 Omschrijving
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).
Partij met meerdere talen

Vertaal meerdere teksten in meerdere talen tegelijk:

{
    "texts": ["Hello", "Goodbye"],
    "target_languages": ["es", "fr"],
    "source_language": "en"
}
Resultaten_gegevens voltooid
{
    "translations": [
        {"es": "Hola", "fr": "Bonjour"},
        {"es": "Adiós", "fr": "Au revoir"}
    ],
    "source_language": "en",
    "target_languages": ["es", "fr"],
    "character_count": 24,
    "processing_time": 2.45
}
Parameters aanvragen
Parameter Type Vereist Omschrijving
texts array Ja. Array of strings to translate
target_language string Ja* Doeltaalcode voor één taal
target_languages array Ja* Array of target language codes for multiple languages
source_language string Nee Source language code. Default: "auto"

* Zorg ervoor dat ofwel target_language of target_languagesNiet allebei.

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.

Documentvertaling

Vertaal volledige documenten met behoud van formatteren. Ondersteunt meerdere bestandsformaten.

POST https://api.translateapi.ai/api/v1/translate/document/
Verzoek (multipartiete/vormgegevens)
Parameter Type Vereist Omschrijving
file file Ja. Het te vertalen document (max 10MB)
target_language string Ja. Target language code (e.g., "es", "fr", "de")
source_language string Nee Source language code. Default: "auto" (auto-detect)
Ondersteunde bestandstypen
Documents
  • .txt - Platte tekstbestanden
  • .docx - Word-documenten
  • .pdf - PDF-documenten (inclusief gescand)
Data & Localization
  • .json - JSON-bestanden (vertaalt tekenreekswaarden)
  • .xml - XML-bestanden
  • .srt - Bestanden met ondertiteling
  • .po / .pot - Tekstvertalingsbestanden ophalen
Images (OCR)
  • .jpg / .jpeg - JPEG-afbeeldingen (OCR)
  • .png - PNG-afbeeldingen (OCR)
  • .tiff / .tif - TIFF-afbeeldingen (OCR)
  • .bmp - BMP-afbeeldingen (OCR)
  • .webp - WebP-afbeeldingen (OCR)
Voorbeeld (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"
Respons
{
    "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"
}
OCR-ondersteuning: Afbeeldingsbestanden en gescande PDF's worden verwerkt met optische karakterherkenning (OCR) om tekst te extraheren voor vertaling. Voor de beste resultaten, gebruik duidelijke, hoge resolutie beelden.
GET https://api.translateapi.ai/api/v1/translate/document/{id}/

Controleer de status van een documentvertaling of download de URL.

Statuswaarden
pending Bestand geüpload, wachtend om te worden verwerkt
processing Vertaling in uitvoering
completed Vertaling voltooid, download beschikbaar
failed Vertaling mislukt (check error_message)

Ondersteunde talen

Krijg de lijst van alle ondersteunde talen.

GET https://api.translateapi.ai/api/v1/translate/languages/
Respons
{
    "count": 186,
    "results": [
        {"iso": "en", "name": "English", "en_label": "English"},
        {"iso": "es", "name": "Español", "en_label": "Spanish"},
        {"iso": "fr", "name": "Français", "en_label": "French"},
        ...
    ]
}

View All 186 Languages

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.

Note: this endpoint is served from the main domain https://translateapi.ai/api/v1/ (not the api. translation host), and requires an API key.
POST https://translateapi.ai/api/v1/suggestions/
Verzoek om een instantie
Parameter Type Omschrijving
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!"
}'
Respons
{
    "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).

Vertaalmodellen

We maken gebruik van state-of-the-art open source vertaalmodellen die draaien op onze eigen GPU infrastructuur. Alle modellen zijn commercieel gelicentieerd (Apache 2.0).

Model Talen Beste voor
Helsinki-NLP/opus-mt 50+ taalparen Gemeenschappelijke talen (EN, ES, FR, DE, IT, PT, RU, ZH, JA, enz.)
Google MADLAD-400 400+ talen Zeldzame talen, uitgebreide dekking

De API selecteert automatisch het beste model voor uw taalpaar. U kunt optioneel een engine parameter:

Motor Omschrijving
"auto" Standaard. Probeert HuggingFace eerst, valt terug naar MADLAD-400
"huggingface" Forceer HuggingFace/MarianMT (snelste, 50+ talen)
"madlad" Dwing MADLAD-400 (400+ talen)

Fout bij omgaan

De API gebruikt standaard HTTP-statuscodes om succes of mislukking aan te geven.

Rubriek Omschrijving
200 Succes
202 Accepted — Batch job queued successfully
400 Bad Request — Invalid parameters (missing text, unsupported language, etc.)
401 Ongeautoriseerd - Ongeldige of ontbrekende API-sleutel
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 niet beschikbaar - Vertaalmachine tijdelijk uit
Fout in antwoordformaat
{
    "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:

Plan Tekens/Maand Batch API Documents Prijs
Vrij 250,000 $0 Gratis aanmelden
Starter 2,500,000 $9/munit description in lists Abonneren
Pro 10,000,000 $29/munit description in lists Abonneren
Zaken 40,000,000 $79/munit description in lists Abonneren
Schaal 125,000,000 $199/munit description in lists Abonneren
Enterprise Unlimited $499/munit description in lists Contact Sales

Wanneer u uw limiet overschrijdt, ontvangt u een 402 Payment Required antwoord tot de volgende maand of je upgrade.

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

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