Contentrain

Contentrain provides open‑source developer tools and a Studio workflow that enable teams to govern AI‑generated UI copy, documentation and locale strings within Git repositories. It lets developers create, review and approve content changes through Git‑native models, and allows non‑developers to edit content in Studio while preserving branch, diff and validation controls.

Contentrain is listed with 2 APIs on the APIs.io network. Tagged areas include Content Governance, Developer Tools, AI content, Studio Workflow, and Localization.

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

Contentrain’s developer surface includes changelog, support, pricing, API reference, getting-started guide, documentation, and 19 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

45.6/100 developing Agent 36/100 agent ready Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemium

2 APIs

Content GovernanceDeveloper Tools AI contentStudio WorkflowLocalization

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 45.6/100 · developing

Contract Quality 7.4 / 21

Developer Ergonomics 7.3 / 17

Access Clarity 10.7 / 17

Operational Transparency 4.4 / 11

Contract Governance 2.2 / 10

Discoverability 5.5 / 9

Regulatory Posture 3.7 / 15

Agent readiness — 36/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 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 0 / 7

Typed Event Surface 6 / 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 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Show this score on your site.

It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/contentrain-io/"><img src="https://apis.io/badge/contentrain-io/card.svg" alt="Contentrain on APIs.io — Kin Score by API Evangelist"></a>

Other styles, a README pill and a shields.io endpoint are on the badge page.

Raise your score.

Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)

7 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 35.0 — up to +16.3 composite points
Developer Ergonomics scores 42.9 — up to +11.4 composite points
Contract Governance scores 22.0 — up to +9.4 composite points

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.

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/contentrain-io/apis.yml: open an issue on github.com/api-evangelist/contentrain-io 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 →

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.

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

APIs 2

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

Contentrain Studio API

REST API for Contentrain Studio providing content generation and management features.

Contentrain API

Contentrain API as documented publicly: 51 operations. Contract generated from the documentation by API Evangelist (2026-11-04); not the provider's own document.

Contentrain API pricing

Prices published by Contentrain, read 2026-11-04 from contentrain.io/pricing.

Plan	Price
Free	$0
Starter	$9 per month
Pro	$49 per month
Enterprise	Custom

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Contentrain Io Plans Pricing

4 plans

PLANS

Event Specifications 1

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

Contentrain Io Webhooks

ASYNCAPI

Semantic Vocabularies 1

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

Contentrain Io Context

49 classes · 74 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Contentrain API Rules

43 rules · 40 errors 1 warnings 2 info

SPECTRAL

JSON Schema 6

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

GetApiMediaV1ProjectidAssetsAssetidResponse

13 properties

JSON SCHEMA

GetApiWorkspacesWorkspaceidProjectsProjectidCdnBuildsRespons

12 properties

JSON SCHEMA

GetApiWorkspacesWorkspaceidProjectsProjectidMediaAssetidResp

13 properties

JSON SCHEMA

PatchApiWorkspacesWorkspaceidProjectsProjectidMediaAssetidRe2

13 properties

JSON SCHEMA

PostApiMediaV1ProjectidAssetsRequest

5 properties

JSON SCHEMA

PostApiMediaV1ProjectidAssetsResponse

15 properties

JSON SCHEMA

Security Posture 1

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

Contentrain Io Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

APIReference

APIReference

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

Webhooks

DataModel

Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

Security

Security

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

Support

Support

ChangeLog

ChangeLog

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

Pricing

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: contentrain-io
name: Contentrain
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: low
  probe_state: unreadable
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://contentrain.io/og-contentrain-1200x630.png
description: Contentrain provides open‑source developer tools and a Studio workflow that enable teams to govern AI‑generated
  UI copy, documentation and locale strings within Git repositories. It lets developers create, review and approve content
  changes through Git‑native models, and allows non‑developers to edit content in Studio while preserving branch, diff and
  validation controls.
url: https://contentrain.iois.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-04 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-04'
modified: '2026-11-04'
tags:
- Content Governance
- Developer Tools
- AI content
- Studio Workflow
- Localization
tags_raw:
- Content Governance
- Developer Tools
- AI Content
- Studio Workflow
- Localization
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/contentrain-io-plans-pricing.yml
- type: Spectral
  url: rules/contentrain-io-rules.yml
- type: JSONLD
  url: json-ld/contentrain-io-context.jsonld
- type: Vocabulary
  url: vocabulary/contentrain-io-vocabulary.yml
- type: Webhooks
  url: asyncapi/contentrain-io-webhooks.yml
- type: DataModel
  url: data-model/contentrain-io-data-model.yml
- type: ChangeLog
  url: changelog/contentrain-io-changelog.yml
- type: Conformance
  url: conformance/contentrain-io-conformance.yml
- type: LLMsTxt
  url: llms/contentrain-io-llms.txt
- type: WellKnown
  url: well-known/contentrain-io-well-known.yml
- type: Hosts
  url: hosts/contentrain-io-hosts.yml
- type: Vendors
  url: vendors/contentrain-io-vendors.yml
- type: TermsOfService
  url: https://contentrain.io/legal/terms
- type: Support
  url: https://contentrain.io/support
- type: Security
  url: https://contentrain.io/security
- type: PrivacyPolicy
  url: https://contentrain.io/legal/privacy-policy
- type: Pricing
  url: https://contentrain.io/pricing
- type: GitHubOrganization
  url: https://github.com/Contentrain
- type: DeveloperPortal
  url: https://contentrain.io/developers
- type: ChangeLog
  url: https://docs.contentrain.io/developer/changelog
- type: APIReference
  url: https://docs.contentrain.io/developer/api-reference/
- type: GettingStarted
  url: https://docs.contentrain.io/guide/
- type: Documentation
  url: https://docs.contentrain.io/
- type: DomainSecurity
  url: security/contentrain-io-domain-security.yml
- type: Website
  url: https://contentrain.io/
apis:
- name: Contentrain Studio API
  description: REST API for Contentrain Studio providing content generation and management features.
  humanURL: https://docs.contentrain.io/developer/api-reference/
  baseURL: null
  aid: contentrain-io:contentrain-studio-api
- aid: contentrain-io:contentrain-io-api
  name: Contentrain API
  description: 'Contentrain API as documented publicly: 51 operations. Contract generated from the documentation by API Evangelist
    (2026-11-04);

    not the provider''s own document.'
  humanURL: https://docs.contentrain.io/developer/api-reference
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/contentrain-io-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/contentrain-io-post-api-media-v1-projectid-assets-response-schema.json
  - type: JSONSchema
    url: json-schema/contentrain-io-get-api-media-v1-projectid-assets-assetid-response-schema.json
  - type: JSONSchema
    url: json-schema/contentrain-io-post-api-media-v1-projectid-assets-request-schema.json
  - type: JSONSchema
    url: json-schema/contentrain-io-get-api-workspaces-workspaceid-projects-projectid-cdn-builds-respons-schema.json
  - type: JSONSchema
    url: json-schema/contentrain-io-get-api-workspaces-workspaceid-projects-projectid-media-assetid-resp-schema.json
  - type: JSONSchema
    url: json-schema/contentrain-io-patch-api-workspaces-workspaceid-projects-projectid-media-assetid-re2-schema.json
x-coverage:
  state: unreadable
  reason: js-rendered-docs
  detail: API reference page renders via JavaScript, no machine‑readable spec found.
  evidence:
  - url: https://docs.contentrain.io/developer/api-reference/
    status: 200
  checked: '2026-11-04'
x-enrichment:
  date: '2026-11-04'
  status: enriched
  artifacts_added: 28
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Contentrain API — frequently asked questions

Does Contentrain have an API?

Yes. APIs.io lists 2 APIs from Contentrain, including Contentrain Studio API and Contentrain API.

Is there an OpenAPI specification for the Contentrain API?

Yes. APIs.io indexes 1 OpenAPI specification for Contentrain, each linked for download from this page.

How much does the Contentrain API cost?

Contentrain publishes its prices; its Free plan is $0 as of 2026-11-04. APIs.io lists 4 pricing plans for Contentrain, with each plan's price, limits and inclusions under Pricing on this page.

Is the Contentrain API ready for AI agents?

Contentrain has a Kin Score of 45.6 out of 100 (developing) and an Agent Readiness score of 36.0 (agent-ready), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/contentrain-io"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/contentrain-io/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/contentrain-io/evidence"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.