IBM Language Translator

IBM Watson Language Translator was a REST API service for translating text between 35+ languages, detecting input language automatically, and creating custom domain-specific translation models using TMX, XLIFF, or CSV training data. The service supported neural machine translation (NMT) and was available through IBM Cloud. IBM deprecated the service in June 2023 and fully withdrew it in December 2024.

IBM Language Translator publishes 4 APIs on the APIs.io network, including Documents API, Languages API, Models API, and 1 more. Tagged areas include Translation, Natural Language Processing, Machine Translation, IBM Watson, and AI.

The IBM Language Translator catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

IBM Language Translator’s developer surface includes authentication, documentation, engineering blog, pricing, and 11 more developer resources.

🌐 Visit website 📡 Source on GitHub

51.0/100 developing ▬ flat Agent 34/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessPaidSelf serve

4 APIs

TranslationNatural Language ProcessingMachine TranslationIBM WatsonAIText AnalysisDeprecated

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 51.0/100 · developing

Contract Quality 17.5 / 25

Developer Ergonomics 4.3 / 20

Commercial Clarity 7.9 / 20

Operational Transparency 6.8 / 13

Governance 7.0 / 12

Discoverability 7.4 / 10

Agent readiness — 34/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 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

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/ibm-translate: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 4

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

Rate Limits 1

Documented rate limits and quota policies.

Ibm Translate Rate Limits

3 limits

RATE LIMITS

FinOps 1

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

JSON Schema 4

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

Examples 3

Example request and response payloads for these APIs.

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

GitHubOrg

GitHubOrg

Access & Security 3

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

StatusPage

StatusPage

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

aid: ibm-translate
url: https://raw.githubusercontent.com/api-evangelist/ibm-translate/refs/heads/main/apis.yml
name: IBM Language Translator
kind: company
description: IBM Watson Language Translator was a REST API service for translating text between 35+ languages, detecting input
  language automatically, and creating custom domain-specific translation models using TMX, XLIFF, or CSV training data. The
  service supported neural machine translation (NMT) and was available through IBM Cloud. IBM deprecated the service in June
  2023 and fully withdrew it in December 2024.
accessModel:
  pricing: paid
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Paid · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/ibm-translate.png
tags:
- Translation
- Natural Language Processing
- Machine Translation
- IBM Watson
- AI
- Text Analysis
- Deprecated
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.19'
apis:
- aid: ibm-translate:ibm-translate-documents-api
  name: IBM Language Translator Documents API
  description: Operations for translating documents
  humanURL: https://cloud.ibm.com/apidocs/language-translator
  baseURL: https://api.us-south.language-translator.watson.cloud.ibm.com
  tags:
  - Documents
  properties:
  - type: OpenAPI
    url: openapi/ibm-translate-documents-api-openapi.yml
  - type: Documentation
    url: https://cloud.ibm.com/apidocs/language-translator
  - type: GitHubRepository
    url: https://github.com/watson-developer-cloud/python-sdk
  - type: GitHubRepository
    url: https://github.com/watson-developer-cloud/node-sdk
  - type: Pricing
    url: https://www.ibm.com/cloud/watson-language-translator/pricing
- aid: ibm-translate:ibm-translate-languages-api
  name: IBM Language Translator Languages API
  description: Operations for listing supported and identifiable languages
  humanURL: https://cloud.ibm.com/apidocs/language-translator
  baseURL: https://api.us-south.language-translator.watson.cloud.ibm.com
  tags:
  - Languages
  properties:
  - type: OpenAPI
    url: openapi/ibm-translate-languages-api-openapi.yml
  - type: Documentation
    url: https://cloud.ibm.com/apidocs/language-translator
  - type: GitHubRepository
    url: https://github.com/watson-developer-cloud/python-sdk
  - type: GitHubRepository
    url: https://github.com/watson-developer-cloud/node-sdk
  - type: Pricing
    url: https://www.ibm.com/cloud/watson-language-translator/pricing
- aid: ibm-translate:ibm-translate-models-api
  name: IBM Language Translator Models API
  description: Operations for managing translation models
  humanURL: https://cloud.ibm.com/apidocs/language-translator
  baseURL: https://api.us-south.language-translator.watson.cloud.ibm.com
  tags:
  - Models
  properties:
  - type: OpenAPI
    url: openapi/ibm-translate-models-api-openapi.yml
  - type: Documentation
    url: https://cloud.ibm.com/apidocs/language-translator
  - type: GitHubRepository
    url: https://github.com/watson-developer-cloud/python-sdk
  - type: GitHubRepository
    url: https://github.com/watson-developer-cloud/node-sdk
  - type: Pricing
    url: https://www.ibm.com/cloud/watson-language-translator/pricing
- aid: ibm-translate:ibm-translate-translation-api
  name: IBM Language Translator Translation API
  description: Operations for translating text
  humanURL: https://cloud.ibm.com/apidocs/language-translator
  baseURL: https://api.us-south.language-translator.watson.cloud.ibm.com
  tags:
  - Translation
  properties:
  - type: OpenAPI
    url: openapi/ibm-translate-translation-api-openapi.yml
  - type: Documentation
    url: https://cloud.ibm.com/apidocs/language-translator
  - type: GitHubRepository
    url: https://github.com/watson-developer-cloud/python-sdk
  - type: GitHubRepository
    url: https://github.com/watson-developer-cloud/node-sdk
  - type: Pricing
    url: https://www.ibm.com/cloud/watson-language-translator/pricing
common:
- type: AgenticAccess
  url: agentic-access/ibm-translate-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/ibm-translate-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/ibm-translate-domain-security.yml
- type: Authentication
  url: authentication/ibm-translate-authentication.yml
- type: Website
  url: https://www.ibm.com/cloud/watson-language-translator
- type: Documentation
  url: https://cloud.ibm.com/apidocs/language-translator
- type: GitHubOrg
  url: https://github.com/watson-developer-cloud
- type: LinkedIn
  url: https://www.linkedin.com/company/ibm
- type: Blog
  url: https://www.ibm.com/blog/category/watson/
- type: Pricing
  url: https://www.ibm.com/cloud/watson-language-translator/pricing
- type: StatusPage
  url: https://cloud.ibm.com/status?component=language-translator&selected=status
- type: X
  url: https://x.com/IBMcloud
- type: Plans
  url: plans/ibm-translate-plans-pricing.yml
- type: RateLimits
  url: rate-limits/ibm-translate-rate-limits.yml
- type: FinOps
  url: finops/ibm-translate-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com