SYSTRAN website screenshot

SYSTRAN

SYSTRAN is a machine translation and natural language processing company offering neural (Pure Neural Machine Translation / PNMT) translation across 50+ languages. The SYSTRAN Translate API is a RESTful service (base https://api-translate.systran.net) that translates text, files, and HTML, detects and lists supported languages, and manages translation profiles, user dictionaries, and corpora. The broader SYSTRAN Platform / SYSTRAN.io surface adds NLP operations - morphology, tokenization, segmentation, named entity recognition, and language identification. Requests authenticate with an API key (key query parameter or Authorization header). SYSTRAN sells access as a Developer cloud subscription (14-day / 500,000-character free trial) plus Professional SaaS and Enterprise cloud/on-premise plans, billed per character.

SYSTRAN publishes 8 API contracts indexed on the APIs.io network, including Corpus API, Dictionary API, File Translation API, and 5 more. Tagged areas include Machine Translation, Translation, Natural Language Processing, Neural Machine Translation, and Localization.

The SYSTRAN catalog on APIs.io includes 1 Spectral governance ruleset.

SYSTRAN’s developer surface includes authentication, documentation, and 8 more developer resources.

🌐 Visit website📡 Profile data on GitHub
25.5/100 emerging ▬ flat Agent 21/100 agent aware Front door AI 3/6 light Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →
AccessFreemiumSelf serveFree trial⚡ Free to try
1 published contract
Machine TranslationTranslationNatural Language ProcessingNeural Machine TranslationLocalizationLanguage Detection

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0
Composite quality — 25.5/100 · emerging
Contract Quality 7.9 / 19
Developer Ergonomics 4.5 / 15
Access Clarity 1.0 / 15
Operational Transparency 1.2 / 10
Contract Governance 1.2 / 9
Discoverability 5.0 / 8
Regulatory Posture 0.9 / 15
Create-or-Update Ergonomics 0.0 / 10
Agent readiness — 21/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 6 / 6
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
Pagination 5 / 5
Distinct Operations 3 / 3
MCP Tool Quality 6 / 6
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/.
Show this score on your site. Kin Score badge preview for SYSTRAN It updates itself when the score changes. Paste this where you link to your API docs: 
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Raise your score.
Agent readiness — checks not met, largest first (exact, from this profile):
8 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/systran/apis.yml: open an issue on github.com/api-evangelist/systran 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.

MarketPositionDepthRegistered MCP serverDeclares compatibility
Speech and Voice AI covered 34.5 (thin) - -
Browser Extension Stores (company-published Firefox add-ons; Chrome Web Store unreadable) covered 34.5 (thin) - -

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 1

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.

OpenAPI
measured — observed by APIs.io (published)

APIs 8

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

SYSTRAN Corpus API

The Corpus API from SYSTRAN — 11 operation(s) for corpus.

SYSTRAN Dictionary API

The Dictionary API from SYSTRAN — 14 operation(s) for dictionary.

SYSTRAN File Translation API

The File Translation API from SYSTRAN — 8 operation(s) for file translation.

SYSTRAN Language Detection API

The Language Detection API from SYSTRAN — 2 operation(s) for language detection.

SYSTRAN NLP API

The NLP API from SYSTRAN — 4 operation(s) for nlp.

SYSTRAN Profiles API

The Profiles API from SYSTRAN — 7 operation(s) for profiles.

SYSTRAN Supported Languages API

The Supported Languages API from SYSTRAN — 4 operation(s) for supported languages.

SYSTRAN Translation API

The Translation API from SYSTRAN — 4 operation(s) for translation.

Scroll for all 8

Open Collections 9

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

SYSTRAN Translate & NLP Corpus API

OPEN COLLECTION

SYSTRAN Translate & NLP Corpus Dictionary API

OPEN COLLECTION

SYSTRAN Translate & NLP Corpus File Translation API

OPEN COLLECTION

SYSTRAN Translate & NLP Corpus Language Detection API

OPEN COLLECTION

SYSTRAN Translate & Corpus NLP API

OPEN COLLECTION

SYSTRAN Translate & NLP Corpus Profiles API

OPEN COLLECTION

SYSTRAN Translate & NLP Corpus Supported Languages API

OPEN COLLECTION

SYSTRAN Translate & NLP Corpus Translation API

OPEN COLLECTION

SYSTRAN Translate & NLP API

OPEN COLLECTION

Scroll for all 9

SYSTRAN API pricing

Not yet checked against SYSTRAN's own pricing page. Compiled by API Evangelist on 2026-07-03 from www.systransoft.com/translation-products/translate-api/; confirm before you rely on a figure. A free plan or tier is listed.

PlanPrice
Developer Free Trial free —
Developer (Cloud API) usage —
Professional (SaaS) subscription —
Enterprise (Cloud / On-Premise) enterprise —

Plan details, limits and sources →

Rate limits

Compiled by API Evangelist, not yet checked against SYSTRAN's documentation. All 4 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

SYSTRAN Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

SYSTRAN Rate Limits

4 limits

RATE LIMITS

FinOps 1

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

SYSTRAN Finops

FINOPS

Spectral Rules 1

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

SYSTRAN API Rules

49 rules · 47 error-severity 1 warn-severity 1 info-severity

SPECTRAL

Security Posture 2

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

SYSTRAN Authentication

apiKey · 2 schemes

SECURITY

SYSTRAN Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

SYSTRAN Agentic Access

55 operations · 28 acting

55 operations · 28 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 2

The organization behind the API

LinkedIn
LinkedIn
 Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: systran
url: https://raw.githubusercontent.com/api-evangelist/systran/refs/heads/main/apis.yml
name: SYSTRAN
kind: company
description: SYSTRAN is a machine translation and natural language processing company offering neural (Pure Neural Machine
  Translation / PNMT) translation across 50+ languages. The SYSTRAN Translate API is a RESTful service (base https://api-translate.systran.net)
  that translates text, files, and HTML, detects and lists supported languages, and manages translation profiles, user dictionaries,
  and corpora. The broader SYSTRAN Platform / SYSTRAN.io surface adds NLP operations - morphology, tokenization, segmentation,
  named entity recognition, and language identification. Requests authenticate with an API key (key query parameter or Authorization
  header). SYSTRAN sells access as a Developer cloud subscription (14-day / 500,000-character free trial) plus Professional
  SaaS and Enterprise cloud/on-premise plans, billed per character.
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: true
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium (free trial) · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  - url: https://www.systran.net
    status: 301
    note: declared website redirects to https://www.systransoft.com/ — a different registrable domain (systran.net -> systransoft.com),
      possible rename or acquisition (probed 2026-09-03, roadmap#169)
  generated: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/systran.png
x-docs-platform: sphinx
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-17
tags:
- Machine Translation
- Translation
- Natural Language Processing
- Neural Machine Translation
- Localization
- Language Detection
tags_raw:
- Machine Translation
- Translation
- NLP
- Neural Machine Translation
- Localization
- Language Detection
created: '2026-07-03'
modified: '2026-07-03'
specificationVersion: '0.23'
apis:
- aid: systran:systran-corpus-api
  name: SYSTRAN Corpus API
  description: The Corpus API from SYSTRAN — 11 operation(s) for corpus.
  humanURL: https://docs.systran.net/translateAPI/translation/
  baseURL: https://api-translate.systran.net
  tags:
  - Corpus
  properties:
  - type: OpenAPI
    url: openapi/systran-corpus-api-openapi.yml
  - type: Documentation
    url: https://docs.systran.net/translateAPI/en/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/translation/
  - type: PostmanCollection
    url: collections/systran.postman_collection.json
  - type: OpenCollection
    url: collections/systran.opencollection.json
  - type: Documentation
    url: https://help.systrangroup.com/hc/en-us/sections/360004529440--REST-API
  - type: APIReference
    url: https://docs.systran.net/translateAPI/dictionary/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/profiles/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/corpus/
- aid: systran:systran-dictionary-api
  name: SYSTRAN Dictionary API
  description: The Dictionary API from SYSTRAN — 14 operation(s) for dictionary.
  humanURL: https://docs.systran.net/translateAPI/translation/
  baseURL: https://api-translate.systran.net
  tags:
  - Dictionaries
  tags_raw:
  - Dictionary
  properties:
  - type: OpenAPI
    url: openapi/systran-dictionary-api-openapi.yml
  - type: Documentation
    url: https://docs.systran.net/translateAPI/en/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/translation/
  - type: PostmanCollection
    url: collections/systran.postman_collection.json
  - type: OpenCollection
    url: collections/systran.opencollection.json
  - type: Documentation
    url: https://help.systrangroup.com/hc/en-us/sections/360004529440--REST-API
  - type: APIReference
    url: https://docs.systran.net/translateAPI/dictionary/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/profiles/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/corpus/
- aid: systran:systran-file-translation-api
  name: SYSTRAN File Translation API
  description: The File Translation API from SYSTRAN — 8 operation(s) for file translation.
  humanURL: https://docs.systran.net/translateAPI/translation/
  baseURL: https://api-translate.systran.net
  tags:
  - File Translation
  properties:
  - type: OpenAPI
    url: openapi/systran-file-translation-api-openapi.yml
  - type: Documentation
    url: https://docs.systran.net/translateAPI/en/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/translation/
  - type: PostmanCollection
    url: collections/systran.postman_collection.json
  - type: OpenCollection
    url: collections/systran.opencollection.json
  - type: Documentation
    url: https://help.systrangroup.com/hc/en-us/sections/360004529440--REST-API
  - type: APIReference
    url: https://docs.systran.net/translateAPI/dictionary/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/profiles/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/corpus/
- aid: systran:systran-language-detection-api
  name: SYSTRAN Language Detection API
  description: The Language Detection API from SYSTRAN — 2 operation(s) for language detection.
  humanURL: https://docs.systran.net/translateAPI/translation/
  baseURL: https://api-translate.systran.net
  tags:
  - Language Detection
  properties:
  - type: OpenAPI
    url: openapi/systran-language-detection-api-openapi.yml
  - type: Documentation
    url: https://docs.systran.net/translateAPI/en/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/translation/
  - type: PostmanCollection
    url: collections/systran.postman_collection.json
  - type: OpenCollection
    url: collections/systran.opencollection.json
  - type: Documentation
    url: https://help.systrangroup.com/hc/en-us/sections/360004529440--REST-API
  - type: APIReference
    url: https://docs.systran.net/translateAPI/dictionary/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/profiles/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/corpus/
- aid: systran:systran-nlp-api
  name: SYSTRAN NLP API
  description: The NLP API from SYSTRAN — 4 operation(s) for nlp.
  humanURL: https://docs.systran.net/translateAPI/translation/
  baseURL: https://api-translate.systran.net
  tags:
  - Natural Language Processing
  tags_raw:
  - NLP
  properties:
  - type: OpenAPI
    url: openapi/systran-nlp-api-openapi.yml
  - type: Documentation
    url: https://docs.systran.net/translateAPI/en/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/translation/
  - type: PostmanCollection
    url: collections/systran.postman_collection.json
  - type: OpenCollection
    url: collections/systran.opencollection.json
  - type: Documentation
    url: https://help.systrangroup.com/hc/en-us/sections/360004529440--REST-API
  - type: APIReference
    url: https://docs.systran.net/translateAPI/dictionary/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/profiles/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/corpus/
- aid: systran:systran-profiles-api
  name: SYSTRAN Profiles API
  description: The Profiles API from SYSTRAN — 7 operation(s) for profiles.
  humanURL: https://docs.systran.net/translateAPI/translation/
  baseURL: https://api-translate.systran.net
  tags:
  - Profiles
  properties:
  - type: OpenAPI
    url: openapi/systran-profiles-api-openapi.yml
  - type: Documentation
    url: https://docs.systran.net/translateAPI/en/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/translation/
  - type: PostmanCollection
    url: collections/systran.postman_collection.json
  - type: OpenCollection
    url: collections/systran.opencollection.json
  - type: Documentation
    url: https://help.systrangroup.com/hc/en-us/sections/360004529440--REST-API
  - type: APIReference
    url: https://docs.systran.net/translateAPI/dictionary/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/profiles/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/corpus/
- aid: systran:systran-supported-languages-api
  name: SYSTRAN Supported Languages API
  description: The Supported Languages API from SYSTRAN — 4 operation(s) for supported languages.
  humanURL: https://docs.systran.net/translateAPI/translation/
  baseURL: https://api-translate.systran.net
  tags:
  - Supported Languages
  properties:
  - type: OpenAPI
    url: openapi/systran-supported-languages-api-openapi.yml
  - type: Documentation
    url: https://docs.systran.net/translateAPI/en/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/translation/
  - type: PostmanCollection
    url: collections/systran.postman_collection.json
  - type: OpenCollection
    url: collections/systran.opencollection.json
  - type: Documentation
    url: https://help.systrangroup.com/hc/en-us/sections/360004529440--REST-API
  - type: APIReference
    url: https://docs.systran.net/translateAPI/dictionary/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/profiles/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/corpus/
- aid: systran:systran-translation-api
  name: SYSTRAN Translation API
  description: The Translation API from SYSTRAN — 4 operation(s) for translation.
  humanURL: https://docs.systran.net/translateAPI/translation/
  baseURL: https://api-translate.systran.net
  tags:
  - Translation
  properties:
  - type: OpenAPI
    url: openapi/systran-translation-api-openapi.yml
  - type: Documentation
    url: https://docs.systran.net/translateAPI/en/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/translation/
  - type: PostmanCollection
    url: collections/systran.postman_collection.json
  - type: OpenCollection
    url: collections/systran.opencollection.json
  - type: Documentation
    url: https://help.systrangroup.com/hc/en-us/sections/360004529440--REST-API
  - type: APIReference
    url: https://docs.systran.net/translateAPI/dictionary/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/profiles/
  - type: APIReference
    url: https://docs.systran.net/translateAPI/corpus/
common:
- type: AgenticAccess
  url: agentic-access/systran-agentic-access.yml
- type: DomainSecurity
  url: security/systran-domain-security.yml
- type: Authentication
  url: authentication/systran-authentication.yml
- type: GitHubOrganization
  url: https://github.com/SYSTRAN
- type: LinkedIn
  url: https://www.linkedin.com/company/systran
- type: Website
  url: https://www.systran.net
- type: Documentation
  url: https://docs.systran.net/translateAPI/en/
- type: Plans
  url: plans/systran-plans-pricing.yml
- type: RateLimits
  url: rate-limits/systran-rate-limits.yml
- type: FinOps
  url: finops/systran-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

SYSTRAN API — frequently asked questions

Does SYSTRAN have an API?

Yes. APIs.io lists 8 APIs from SYSTRAN, including SYSTRAN Corpus API, SYSTRAN Dictionary API and SYSTRAN File Translation API, and 5 more.

Is there an OpenAPI specification for the SYSTRAN API?

Yes. APIs.io indexes 8 OpenAPI specifications for SYSTRAN, each linked for download from this page.

How do I authenticate with the SYSTRAN API?

SYSTRAN uses bearer-token authentication (apiKey · 2 schemes). The details are profiled on APIs.io as SYSTRAN Authentication.

How much does the SYSTRAN API cost?

APIs.io lists 4 pricing plans for SYSTRAN, with each plan's price, limits and inclusions under Pricing on this page.

Is the SYSTRAN API ready for AI agents?

SYSTRAN has a Kin Score of 25.5 out of 100 (emerging) and an Agent Readiness score of 21.3 (agent-aware), scored by API Evangelist on 2026-11-13.

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