DeepL website screenshot

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.

DeepL publishes 15 API contracts indexed on the APIs.io network, including Voice API, Admin API, Correct Text API, and 12 more. Tagged areas include Artificial Intelligence, Deep Learning, Glossary, Localization, and Machine Learning.

The DeepL catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 3 Spectral governance rulesets.

DeepL’s developer surface includes authentication, developer portal, documentation, pricing, engineering blog, and 24 more developer resources.

61.4/100 strong ▬ flat Agent 36/100 agent ready Front door AI 5/6 prominent Heartbeat 92/100 alive saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →
AccessFreemiumSelf serve⚡ Free to try
1 published contract 1 MCP Servers
Artificial IntelligenceDeep LearningGlossaryLocalizationMachine LearningMachine TranslationTranslationReal-Time

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0
Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.
The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
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Agent readiness — checks not met, largest first (exact, from this profile):
  • Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) Ask about this →
  • A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
  • Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →
  • Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented) Ask about this →
  • Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too Ask about this →
  • Pagination +5 pts — share of collection GETs (an array, or one wrapped in data/items/results ...) that declare a page/limit/offset/cursor parameter, a Link header or a next/cursor field; na with no collection GETs Ask about this →
6 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.
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Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/deepl/apis.yml: open an issue on github.com/api-evangelist/deepl to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

measured — observed by APIs.io (platform)
measured — observed by APIs.io (published)

APIs 15

Individual APIs this provider publishes, each with its own machine-readable definition.

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...

DeepL Admin API

Endpoints for organization administrators to manage API keys and retrieve usage analytics.

DeepL Correct Text API

The `correct` endpoint fixes spelling and grammar errors without broader rephrasing. Use it when you want a minimal-change correction pass rather than the broader rewriting perf...

DeepL Manage Glossaries API

Please note that this is the spec for the (old) v2 glossary endpoint. We recommend users switch to the newer v3 glossary endpoints, which support editability and multilinguality...

DeepL Manage Multilingual Glossaries API

The *glossary* functions allow you to create, inspect, edit and delete glossaries. Glossaries created with the glossary function can be used in translate requests by specifying ...

DeepL Manage Spoken Terms API

The *Spoken Terms* functions allow you to create, inspect, edit and delete Spoken Terms collections. Spoken Terms improve speech recognition in the Voice API: they ensure specif...

DeepL Meta Information API

Information about API usage and value ranges

DeepL Quality Evaluation API

**Beta.** Retrieve a quality evaluation report for a document DeepL has translated. Reports are requested with `enable_quality_evaluation` on `POST /v2/document` and polled here...

DeepL Rephrase Text API

The `rephrase` endpoint is used to make corrections and adjustments to texts based on style or tone.

DeepL Style Rules API

The Style Rules API from DeepL — 5 operation(s) for style rules.

DeepL Translate Documents API

The document translation API allows you to translate whole documents and supports the following file types and extensions: * `docx` - Microsoft Word Document * `pptx` - Microsof...

DeepL Translate Text API

The text-translation API currently consists of a single endpoint, `translate`, which is described below.

DeepL Translation Memories API

The translation memory endpoints allow you to manage your account's translation memories, used to store and reuse previously created translations. You can list and retrieve tran...

DeepL Voice API

The Voice API provides real-time voice transcription and translation services. Use a two-step flow: first request a streaming URL via REST, then establish a WebSocket connection...

DeepL Voice Translate Job API

**Alpha.** Async voice translation jobs. This API may change without notice.

Scroll for all 15

Postman Collections 7

Ready-to-run Postman collections for exercising this provider's APIs.

Scroll for all 7

Open Collections 8

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

DeepL Translation API

OPEN COLLECTION

Scroll for all 8

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

DeepL MCP Server

Remote MCP server at developers.deepl.com over HTTP; 3 tools listed.

MCP SERVER

DeepL API pricing

Prices published by DeepL, read 2026-10-28 from www.deepl.com/en/pro. A free plan or tier is listed.

PlanPrice
Individual €7.49 per month, billed annually
Includes: 3 file translations per month; up to 30 MB per file; 1 glossary; no data training; 300,000 character
Team €24.99 per user/month, billed annually
Includes: 20 file translations per month; 5 glossaries; SSO; 1,000,000 characters per user/month; 30 min of De
Business €49.99 per user/month, billed annually
Includes: 100 file translations per month; up to 100 MB per file; unlimited glossaries; translation memory; un
Enterprise Custom pricing
Includes: Custom file translation limits; bring your own key; 99.9 % availability; dedicated account team
Write Pro add-on €6.99 per user/month (billed annually), VAT included
Includes: AI-powered writing assistant add-on
Free version Free version
Includes: 1 file translation; up to 5 MB; 1 glossary; 50,000 characters

Plan details, limits and sources →

Rate limits

Compiled by API Evangelist, not yet checked against DeepL's documentation. All 5 limits →

Billed by: user/month · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

DeepL Plans Pricing

6 plans

PLANS

DeepL Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

DeepL Rate Limits

5 limits

RATE LIMITS

Terms of Service 1

What its API terms permit and prohibit, quoted from its own page.

DeepL

8 quoted statements, read from DeepL's own page on 2026-11-09.

TERMS

Privacy & Data 1

Its role, the data it processes, retention and transfers, quoted from its own privacy page.

DeepL

19 quoted statements, read from DeepL's own page on 2026-11-09.

PRIVACY

Compliance 1

Attestations the provider states (SOC 2, ISO 27001 and others), quoted from its own trust page. APIs.io verifies none of them.

DeepL

5 quoted statements, read from DeepL's own page on 2026-11-09.

COMPLIANCE

Eligibility 1

Who may sign up and where, quoted from its own terms.

DeepL

6 quoted statements, read from DeepL's own page on 2026-11-09.

ELIGIBILITY

AI Preferences 1

Its stance on AI training, inference and agents, quoted from its own pages.

DeepL

2 quoted statements, read from DeepL's own page on 2026-11-09.

AI PREFS

Data License 1

How its data and outputs may be reused, quoted from its own terms.

DeepL

3 quoted statements, read from DeepL's own page on 2026-11-09.

LICENSE

FinOps 1

Cost, billing, and metering signals for API financial operations.

DeepL Finops

FINOPS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

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 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Deepl Context

3 classes · 9 properties

JSON-LD

Spectral Rules 3

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

DeepL — asyncapi rules

5 rules · 1 error-severity 4 warn-severity

SPECTRAL

DeepL — jsonschema rules

5 rules · 4 warn-severity 1 info-severity

SPECTRAL

DeepL — translation api rules

5 rules · 2 error-severity 3 warn-severity

SPECTRAL

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

DeepL Glossary

7 properties

JSON SCHEMA

DeepL Translation

1 properties

JSON SCHEMA

Security Posture 4

Authentication, domain security, vulnerability disclosure, and trust-center signals.

DeepL Authentication

apiKey · 1 scheme

SECURITY

DeepL Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

DeepL Vulnerability Disclosure

security.txt · contact published

SECURITY

DeepL Trust Center

SOC 2, ISO 27001, HIPAA, GDPR

SECURITY

Agentic Access (API Evangelist recommendations) 1

Recommended x-agentic-access execution contracts for AI agents.

DeepL Agentic Access

63 operations · 33 acting

63 operations · 33 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Documentation 2

Reference material describing how the API behaves

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Build 3

SDKs, sample code, and the tooling you integrate with

Access & Security 5

Authentication, authorization, and security posture

Operate 1

Status, limits, changes, and where to get help

Commercial 7

Pricing, plans, and the legal terms of use

Scroll for all 7

Company 3

The organization behind the API

Other 3

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: deepl
name: DeepL
url: https://raw.githubusercontent.com/api-evangelist/deepl/refs/heads/main/apis.yml
kind: company
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
position: Consuming
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/deepl.png
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-09-25
x-docs-hosting: vercel
tags:
- Artificial Intelligence
- Deep Learning
- Glossary
- Localization
- Machine Learning
- Machine Translation
- Translation
- Real-Time
tags_raw:
- Artificial Intelligence
- Deep Learning
- Glossaries
- Localization
- Machine Learning
- Machine Translation
- Translation
- Machine-Learning
- Real-Time
created: '2024-11-07'
modified: '2026-05-30'
specificationVersion: '0.23'
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-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
- aid: deepl:deepl-adminapi-api
  name: DeepL Admin API
  description: Endpoints for organization administrators to manage API keys and retrieve usage analytics.
  humanURL: https://developers.deepl.com/api-reference/voice
  baseURL: https://api.deepl.com/v3
  tags:
  - Admin API
  tags_raw:
  - AdminApi
  properties:
  - type: OpenAPI
    url: openapi/deepl-adminapi-api-openapi.yml
  - type: Documentation
    url: https://developers.deepl.com/docs
  - type: Reference
    url: https://developers.deepl.com/docs/api-reference
  - 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
- aid: deepl:deepl-correcttext-api
  name: DeepL Correct Text API
  description: 'The `correct` endpoint fixes spelling and grammar errors without broader rephrasing. Use it when you want

    a minimal-change correction pass rather than the broader rewriting performed by `rephrase`.'
  humanURL: https://developers.deepl.com/api-reference/voice
  baseURL: https://api.deepl.com/v3
  tags:
  - CorrectText
  properties:
  - type: OpenAPI
    url: openapi/deepl-correcttext-api-openapi.yml
  - type: Documentation
    url: https://developers.deepl.com/docs
  - type: Reference
    url: https://developers.deepl.com/docs/api-reference
  - 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
- aid: deepl:deepl-manageglossaries-api
  name: DeepL Manage Glossaries API
  description: 'Please note that this is the spec for the (old) v2 glossary endpoint.

    We recommend users switch to the newer v3 glossary endpoints, which support editability and multilinguality.


    The *glossary* functions allow you to create, inspect, and delete glossaries.

    Glossaries created with the glossary function can be used in translate requests by specifying the

    `glossary_id` parameter.

    If you encounter issues, please let us know at support@DeepL.com.


    Currently you can create glossaries with any of the languages DeepL supports (with the exception of Thai).'
  humanURL: https://developers.deepl.com/api-reference/voice
  baseURL: https://api.deepl.com/v3
  tags:
  - ManageGlossaries
  properties:
  - type: OpenAPI
    url: openapi/deepl-manageglossaries-api-openapi.yml
  - type: Documentation
    url: https://developers.deepl.com/docs
  - type: Reference
    url: https://developers.deepl.com/docs/api-reference
  - 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
- aid: deepl:deepl-managemultilingualglossaries-api
  name: DeepL Manage Multilingual Glossaries API
  description: 'The *glossary* functions allow you to create, inspect, edit and delete glossaries.

    Glossaries created with the glossary function can be used in translate requests by specifying the

    `glossary_id` parameter. A glossary contains (several) dictionaries.

    A dictionary is a mapping of source phrases to target phrases for a single language pair.

    If you encounter issues, please let us know at support@DeepL.com.


    Currently you can create glossaries with any of the languages DeepL supports (with the exception of Thai).


    The maximum size limit for a glossary is 10 MiB = 10485760 bytes and each source/target text,

    as well as the name of the glossary, is limited to 1024 UTF-8 bytes.

    A total of 1000 glossaries are allowed per account.


    When creating a dictionary with target language `EN`, `PT`, or `ZH`, it''s not necessary to specify a variant

    (e.g. `EN-US`, `EN-GB`, `PT-PT`, `PT-BR`, or `ZH-HANS`).

    Dictionaries with target language `EN` can be used in translations with either English variant.

    Similarly `PT`, and `ZH` dictionaries can be used in translations with their corresponding variants.

    (When you provide the ID of a glossary to a translation, the appropriate dictionary is automatically applied. Currently
    glossaries can not yet be used with source language detection.)


    Glossaries created via the DeepL API are now unified with glossaries created via the DeepL website and DeepL apps.

    Please only use the v3 glossary API in conjunction with multilingual or edited glossaries from the website.'
  humanURL: https://developers.deepl.com/api-reference/voice
  baseURL: https://api.deepl.com/v3
  tags:
  - ManageMultilingualGlossaries
  properties:
  - type: OpenAPI
    url: openapi/deepl-managemultilingualglossaries-api-openapi.yml
  - type: Documentation
    url: https://developers.deepl.com/docs
  - type: Reference
    url: https://developers.deepl.com/docs/api-reference
  - 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
- aid: deepl:deepl-managespokenterms-api
  name: DeepL Manage Spoken Terms API
  description: 'The *Spoken Terms* functions allow you to create, inspect, edit and delete Spoken Terms collections.

    Spoken Terms improve speech recognition in the Voice API: they ensure specific words and phrases,

    such as company names, acronyms, and product names, are transcribed correctly. A collection contains

    one or more term lists, each holding terms for a single language, and is applied to a voice session

    via the `spoken_terms_id` parameter.'
  humanURL: https://developers.deepl.com/api-reference/voice
  baseURL: https://api.deepl.com/v3
  tags:
  - ManageSpokenTerms
  properties:
  - type: OpenAPI
    url: openapi/deepl-managespokenterms-api-openapi.yml
  - type: Documentation
    url: https://developers.deepl.com/docs
  - type: Reference
    url: https://developers.deepl.com/docs/api-reference
  - 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
- aid: deepl:deepl-metainformation-api
  name: DeepL Meta Information API
  description: Information about API usage and value ranges
  humanURL: https://developers.deepl.com/api-reference/voice
  baseURL: https://api.deepl.com/v3
  tags:
  - MetaInformation
  properties:
  - type: OpenAPI
    url: openapi/deepl-metainformation-api-openapi.yml
  - type: Documentation
    url: https://developers.deepl.com/docs
  - type: Reference
    url: https://developers.deepl.com/docs/api-reference
  - 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
- aid: deepl:deepl-qualityevaluation-api
  name: DeepL Quality Evaluation API
  description: '**Beta.** Retrieve a quality evaluation report for a document DeepL has translated. Reports are requested
    with `enable_quality_evaluation` on `POST /v2/document` and polled here. A report lists per-segment quality issues categorized
    by error type and severity, with character spans pointing to where each issue occurs.'
  humanURL: https://developers.deepl.com/api-reference/voice
  baseURL: https://api.deepl.com/v3
  tags:
  - QualityEvaluation
  properties:
  - type: OpenAPI
    url: openapi/deepl-qualityevaluation-api-openapi.yml
  - type: Documentation
    url: https://developers.deepl.com/docs
  - type: Reference
    url: https://developers.deepl.com/docs/api-reference
  - 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
- aid: deepl:deepl-rephrasetext-api
  name: DeepL Rephrase Text API
  description: The `rephrase` endpoint  is used to make corrections and adjustments to texts based on style or tone.
  humanURL: https://developers.deepl.com/api-reference/voice
  baseURL: https://api.deepl.com/v3
  tags:
  - RephraseText
  properties:
  - type: OpenAPI
    url: openapi/deepl-rephrasetext-api-openapi.yml
  - type: Documentation
    url: https://developers.deepl.com/docs
  - type: Reference
    url: https://developers.deepl.com/docs/api-reference
  - 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
- aid: deepl:deepl-style-rules-api
  name: DeepL Style Rules API
  description: The Style Rules API from DeepL — 5 operation(s) for style rules.
  humanURL: https://developers.deepl.com/api-reference/voice
  baseURL: https://api.deepl.com/v3
  tags:
  - Style Rules
  properties:
  - type: OpenAPI
    url: openapi/deepl-style-rules-api-openapi.yml
  - type: Documentation
    url: https://developers.deepl.com/docs
  - type: Reference
    url: https://developers.deepl.com/docs/api-reference
  - 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
- aid: deepl:deepl-translatedocuments-api
  name: DeepL Translate Documents API
  description: "The document translation API allows you to translate whole documents and supports the following file types\
    \ and extensions:\n  * `docx` - Microsoft Word Document\n  * `pptx` - Microsoft PowerPoint Document\n  * `xlsx` - Microsoft\
    \ Excel Document\n  * `xlsm` - Microsoft Excel Macro-Enabled Workbook (currently in beta)\n  * `pdf` - Portable Document\
    \ Format\n  * `htm / html` - HTML Document\n  * `txt` - Plain Text Document\n  * `xlf / xliff` - XLIFF Document (versions\
    \ 1.2, 2.0, and 2.1)\n  * `srt` - SRT Document\n  * `vtt` - WebVTT Subtitle Document (currently in beta)\n  * `idml` -\
    \ Adobe InDesign Markup Language\n  * `xml` - XML Document\n  * `json` - JSON Document\n  * `yaml / yml` - YAML Document\
    \ (currently in beta)\n  * `properties` - Java Properties Document (currently in beta)\n  * `strings` - iOS/macOS Strings\
    \ Document (currently in beta)\n  * `md / markdown` - Markdown Document (currently in beta)\n  * `dita` - DITA topic (Darwin\
    \ Information Typing Architecture)\n  * `mif` - Adobe FrameMaker Interchange Format\n  * `zip` - SCORM Package (e-learning\
    \ content, currently in beta)\n  * `odt` - OpenDocument Text Document (currently in beta)\n  * `rtf` - Rich Text Format\
    \ Document (currently in beta)\n  * `resx` - .NET Resource Document (currently in beta)\n  * `jpeg` / `jpg` / `png` -\
    \ Image (currently in beta)"
  humanURL: https://developers.deepl.com/api-reference/voice
  baseURL: https://api.deepl.com/v3
  tags:
  - TranslateDocuments
  properties:
  - type: OpenAPI
    url: openapi/deepl-translatedocuments-api-openapi.yml
  - type: Documentation
    url: https://developers.deepl.com/docs
  - type: Reference
    url: https://developers.deepl.com/docs/api-reference
  - 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
- aid: deepl:deepl-translatetext-api
  name: DeepL Translate Text API
  description: The text-translation API currently consists of a single endpoint, `translate`, which is described below.
  humanURL: https://developers.deepl.com/api-reference/voice
  baseURL: https://api.deepl.com/v3
  tags:
  - TranslateText
  properties:
  - type: OpenAPI
    url: openapi/deepl-translatetext-api-openapi.yml
  - type: Documentation
    url: https://developers.deepl.com/docs
  - type: Reference
    url: https://developers.deepl.com/docs/api-reference
  - 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
- aid: deepl:deepl-translationmemories-api
  name: DeepL Translation Memories API
  description: 'The translation memory endpoints allow you to manage your account''s translation memories, used to store

    and reuse previously created translations. You can list and retrieve translation memories, page through

    their stored segments, create one by importing a TMX file, export one back to TMX, and delete one.

    Editing the contents of an existing translation memory is not supported; import a new one instead.


    Importing and exporting run as background jobs. Create the job, then poll

    `GET /v3/translation_memories/jobs/{job_id}` until it reports `completed`.


    Translation memories can be used in text translation requests by

    specifying the `translation_memory_id` parameter to denote a specific translation memory and the

    `translation_memory_threshold` which defines the minimum matching percentage required for a translation memory

    segment to be applied (recommended to be 75% or higher). A translation request fails with `404` if the

    translation memory does not exist or does not cover the requested language pair.'
  humanURL: https://developers.deepl.com/api-reference/voice
  baseURL: https://api.deepl.com/v3
  tags:
  - TranslationMemories
  properties:
  - type: OpenAPI
    url: openapi/deepl-translationmemories-api-openapi.yml
  - type: Documentation
    url: https://developers.deepl.com/docs
  - type: Reference
    url: https://developers.deepl.com/docs/api-reference
  - 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
- aid: deepl:deepl-voiceapi-api
  name: DeepL Voice API
  description: 'The Voice API provides real-time voice transcription and translation services.

    Use a two-step flow: first request a streaming URL via REST, then establish a WebSocket connection for streaming audio
    and receiving transcriptions.'
  humanURL: https://developers.deepl.com/api-reference/voice
  baseURL: https://api.deepl.com/v3
  tags:
  - Voice API
  tags_raw:
  - VoiceAPI
  properties:
  - type: OpenAPI
    url: openapi/deepl-voiceapi-api-openapi.yml
  - type: Documentation
    url: https://developers.deepl.com/docs
  - type: Reference
    url: https://developers.deepl.com/docs/api-reference
  - 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
- aid: deepl:deepl-voicetranslatejob-api
  name: DeepL Voice Translate Job API
  description: '**Alpha.** Async voice translation jobs. This API may change without notice.'
  humanURL: https://developers.deepl.com/api-reference/voice
  baseURL: https://api.deepl.com/v3
  tags:
  - VoiceTranslateJob
  properties:
  - type: OpenAPI
    url: openapi/deepl-voicetranslatejob-api-openapi.yml
  - type: Documentation
    url: https://developers.deepl.com/docs
  - type: Reference
    url: https://developers.deepl.com/docs/api-reference
  - 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
common:
- type: Plans
  url: plans/deepl-plans-pricing.yml
- type: RateLimits
  url: rate-limits/deepl-rate-limits.yml
- type: FinOps
  url: finops/deepl-finops.yml
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/deepl/overview
- type: AgenticAccess
  url: agentic-access/deepl-agentic-access.yml
- type: TrustCenter
  url: security/deepl-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/deepl-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/deepl-domain-security.yml
- type: Authentication
  url: authentication/deepl-authentication.yml
- 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: SDKs
  url: https://github.com/DeepLcom/deepl-python
- type: SDKs
  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: LlmsText
  url: https://developers.deepl.com/llms.txt
- url: https://www.deepl.com/en/blog/rss.xml
  type: Blog
- type: UsageTerms
  url: terms/deepl-terms-of-service.yml
- type: DataProcessing
  url: privacy/deepl-privacy-policy.yml
- type: Attestations
  url: compliance/deepl-compliance.yml
- type: Eligibility
  url: eligibility/deepl-eligibility.yml
- type: AIPreferences
  url: ai-preferences/deepl-ai-preferences.yml
- type: DataLicense
  url: data-license/deepl-data-license.yml
integrations:
- name: DeepL
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

DeepL API — frequently asked questions

Does DeepL have an API?

Yes. APIs.io lists 15 APIs from DeepL, including DeepL Voice API, DeepL Admin API and DeepL Correct Text API, and 12 more.

Is there an OpenAPI specification for the DeepL API?

Yes. APIs.io indexes 15 OpenAPI specifications for DeepL, each linked for download from this page.

How do I authenticate with the DeepL API?

DeepL uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as DeepL Authentication.

How much does the DeepL API cost?

DeepL publishes its prices; its Individual plan is €7.49 per month, billed annually as of 2026-10-28. APIs.io lists 6 pricing plans for DeepL, with each plan's price, limits and inclusions under Pricing on this page.

Does DeepL have an MCP server?

Yes. APIs.io lists 1 MCP server for DeepL: Remote MCP server at developers.deepl.com over HTTP; 3 tools listed.

Is the DeepL API ready for AI agents?

DeepL has a Kin Score of 61.4 out of 100 (strong) and an Agent Readiness score of 36.4 (agent-ready), scored by API Evangelist on 2026-11-13.

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