DeepL logo

DeepL

DeepL is an AI-powered translation service that delivers high-quality machine translation between dozens of languages, with support for context-aware translation, document translation, glossaries, and rephrasing/improvement via DeepL Write. The DeepL API is offered in Pro and Free tiers and exposes endpoints for text translation, document translation, glossaries, language metadata, usage, and write/rephrase.

2 APIs 0 Features
Artificial IntelligenceDeep LearningGlossariesLocalizationMachine LearningMachine TranslationTranslation

APIs

DeepL Translation API

The DeepL Translation API provides programmatic access to DeepL's machine translation technology including text translate, document translate, glossaries, language metadata, usa...

DeepL Voice API

The DeepL Voice API provides real-time speech transcription and translation. A POST to /v3/voice/realtime issues an ephemeral token and WebSocket streaming URL; clients then ope...

Event Specifications

DeepL Voice API - WebSocket Streaming

WebSocket streaming API for real-time voice transcription and translation. After obtaining a streaming URL and token via the REST API (POST /v3/voice/realtime), establish a WebS...

ASYNCAPI

Semantic Vocabularies

Deepl Context

3 classes · 9 properties

JSON-LD

API Governance Rules

DeepL API Rules

5 rules · 2 errors 3 warnings

SPECTRAL

Resources

🔗
LinkedIn
LinkedIn
🔗
Website
Website
🌐
Portal
Portal
🔗
Documentation
Documentation
🔑
Authentication
Authentication
💰
Pricing
Pricing
📦
SDK
SDK
📦
SDK
SDK
📜
TermsOfService
TermsOfService
📜
PrivacyPolicy
PrivacyPolicy
🔗
JSONLD
JSONLD
🔗
Vocabulary
Vocabulary
🔗
LLMsTxt
LLMsTxt

Sources

Raw ↑ 
aid: deepl
name: DeepL
url: https://raw.githubusercontent.com/api-evangelist/deepl/refs/heads/main/apis.yml
kind: company
position: Consuming
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
  - Artificial Intelligence
  - Deep Learning
  - Glossaries
  - Localization
  - Machine Learning
  - Machine Translation
  - Translation
created: '2024-11-07'
modified: '2026-05-30'
specificationVersion: '0.19'
description: >-
  DeepL is an AI-powered translation service that delivers high-quality machine translation between dozens of languages,
  with support for context-aware translation, document translation, glossaries, and rephrasing/improvement via DeepL
  Write. The DeepL API is offered in Pro and Free tiers and exposes endpoints for text translation, document
  translation, glossaries, language metadata, usage, and write/rephrase.
apis:
  - aid: deepl:deepl-translation-api
    name: DeepL Translation API
    description: >-
      The DeepL Translation API provides programmatic access to DeepL's machine translation technology including text
      translate, document translate, glossaries, language metadata, usage, and DeepL Write rephrasing.
    humanURL: https://developers.deepl.com/
    baseURL: https://api.deepl.com/v2
    tags:
      - Documents
      - Glossaries
      - Languages
      - Translate
      - Usage
      - Write
    properties:
      - type: Documentation
        url: https://developers.deepl.com/docs
      - type: Reference
        url: https://developers.deepl.com/docs/api-reference
      - type: OpenAPI
        url: openapi/deepl-translation-api-openapi.yml
      - type: JSONSchema
        url: json-schema/deepl-translation.json
      - type: JSONSchema
        url: json-schema/deepl-glossary.json
      - type: Rules
        url: rules/deepl-translation-api-rules.yml
      - type: Capabilities
        url: capabilities/deepl-translation-api-capabilities.yml
  - aid: deepl:deepl-voice-api
    name: DeepL Voice API
    description: >-
      The DeepL Voice API provides real-time speech transcription and translation. A POST to /v3/voice/realtime issues
      an ephemeral token and WebSocket streaming URL; clients then open a WSS channel to stream source audio chunks and
      receive incremental source-language transcriptions, translated transcriptions, and (closed beta) synthesized
      translated audio. There is no documented webhook callback URL on the REST APIs; document translation remains
      polling-based.
    humanURL: https://developers.deepl.com/api-reference/voice
    baseURL: https://api.deepl.com/v3
    tags:
      - Real-Time
      - Speech-to-Text
      - Streaming
      - Transcription
      - Translation
      - Voice
      - WebSocket
    properties:
      - type: Documentation
        url: https://developers.deepl.com/api-reference/voice
      - type: Reference
        url: https://developers.deepl.com/api-reference/voice/websocket-streaming
      - type: OpenAPI
        url: openapi/deepl-voice-api-openapi.yml
      - type: AsyncAPI
        url: asyncapi/deepl-voice-api-asyncapi.yml
      - type: AsyncAPI
        url: https://developers.deepl.com/api-reference/voice.asyncapi.yaml
common:
  - type: LinkedIn
    url: https://www.linkedin.com/company/deepl
  - type: Website
    url: https://www.deepl.com/
  - type: Portal
    url: https://developers.deepl.com/
  - type: Documentation
    url: https://developers.deepl.com/docs
  - type: Authentication
    url: https://developers.deepl.com/docs/getting-started/auth
  - type: Pricing
    url: https://www.deepl.com/pro
  - type: SDK
    url: https://github.com/DeepLcom/deepl-python
  - type: SDK
    url: https://github.com/DeepLcom/deepl-node
  - type: TermsOfService
    url: https://www.deepl.com/pro-license
  - type: PrivacyPolicy
    url: https://www.deepl.com/privacy
  - type: JSONLD
    url: json-ld/deepl-context.jsonld
  - type: Vocabulary
    url: vocabulary/deepl-vocabulary.yml
  - type: Integrations
    url: https://www.deepl.com/en/integrations
  - type: LLMsTxt
    url: https://developers.deepl.com/llms.txt
integrations:
  - name: DeepL
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com