Medium

Medium is an online publishing platform where writers publish stories and readers follow topics, publications and authors. Its developer surface is a small OAuth2 REST API at api.medium.com/v1 that lets an integration read the authenticated user's profile, list the publications they write to or edit, upload images, and publish posts to a profile or into a publication. Medium states the API is no longer supported and does not accept new integrations: existing tokens continue to work, but new integration tokens have not been issued since 2023 and the documentation repository was archived in 2023.

Medium publishes 6 API contracts indexed on the APIs.io network, including Authorization API, Images API, Posts API, and 3 more. Tagged areas include Publishing, Content, Blogging, Media, and Social.

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

Medium’s developer surface includes authentication, engineering blog, documentation, API reference, getting-started guide, support, and 23 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

36.2/100 thin ▬ flat Agent 27/100 agent aware Heartbeat 88/100 alive Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessPaid

2 published contracts 2 Agent Skills

Publishing Content Blogging Media Social Writing OAuthDeprecated APIAuthentication

Kin Score

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

Composite quality — 36.2/100 · thin

Contract Quality 9.8 / 19

Developer Ergonomics 8.5 / 15

Access Clarity 0.0 / 15

Operational Transparency 1.8 / 10

Contract Governance 1.3 / 9

Discoverability 5.0 / 8

Regulatory Posture 4.0 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 27/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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 0 / 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/.

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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
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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
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)

8 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 0.0 — up to +20.0 composite points
Contract Quality scores 52.5 — up to +11.9 composite points
Operational Transparency scores 18.4 — up to +10.6 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/medium/apis.yml: open an issue on github.com/api-evangelist/medium 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.

Market	Position	Depth	Registered MCP server	Declares compatibility
Social and Fediverse	standard	36.4	-	-
APIs.guru OpenAPI Directory (API definition directory)	standard	36.4	-	-

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 3

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

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

OpenAPI

measured — observed by APIs.io (published)

OAuth 2.0

measured — observed by APIs.io (declared)

APIs 6

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

medium Authorization API

Endpoints for initiating the OAuth2 authorization flow by redirecting users to Medium's authorization page.

medium Images API

Operations for uploading images to Medium for use in posts. Supports JPEG, PNG, GIF, and TIFF formats.

medium Posts API

Operations for creating new posts on a user's profile or within a publication, supporting HTML and Markdown content formats.

medium Publications API

Operations for listing publications a user is associated with and retrieving contributors for a given publication.

medium Tokens API

Endpoints for exchanging authorization codes for access tokens and refreshing expired access tokens.

medium Users API

Operations for retrieving authenticated user profile information including username, name, URL, and avatar image.

Open Collections 8

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

Medium OAuth2 Authorization API

OPEN COLLECTION

Medium OAuth2 Authorization Images API

OPEN COLLECTION

Medium OAuth2 API

OPEN COLLECTION

Medium OAuth2 Authorization Posts API

OPEN COLLECTION

Medium OAuth2 Authorization Publications API

OPEN COLLECTION

Medium REST API

OPEN COLLECTION

Medium OAuth2 Authorization Tokens API

OPEN COLLECTION

Medium OAuth2 Authorization Users API

OPEN COLLECTION

Scroll for all 8

Agent Skills 2

Packaged agent skills for driving this provider's APIs from an AI assistant.

medium-publish-post

AGENT SKILL

medium-publish-to-publication

AGENT SKILL

Medium API pricing

Pricing Plans 1

Published pricing tiers and plan structures.

Medium Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Medium Rate Limits

0 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Medium

SLA

FinOps 1

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

Medium Finops

FINOPS

Semantic Vocabularies 1

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

Medium Context

0 classes · 5 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Medium — jsonschema rules

5 rules · 3 warnings 2 info

SPECTRAL

OpenAPI Overlays 6

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Medium Authorization Api Overlay

3 actions · update · medium-authorization-api-openapi.yml

DERIVED

Medium Images Api Overlay

5 actions · update · medium-images-api-openapi.yml

DERIVED

Medium Posts Api Overlay

6 actions · update · medium-posts-api-openapi.yml

DERIVED

Medium Publications Api Overlay

4 actions · update · medium-publications-api-openapi.yml

DERIVED

Medium Tokens Api Overlay

4 actions · update · medium-tokens-api-openapi.yml

DERIVED

Medium Users Api Overlay

4 actions · update · medium-users-api-openapi.yml

DERIVED

JSON Schema 3

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

Medium Post

14 properties

JSON SCHEMA

Medium Publication

6 properties

JSON SCHEMA

Medium User

5 properties

JSON SCHEMA

Security Posture 2

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

Medium Authentication

http/oauth2 · 2 schemes

SECURITY

Medium Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Medium Scopes

4 scopes · authorization_code

4 scopes

SCOPES

Agentic Access 1

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

Medium Agentic Access

9 operations · 5 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 5

Reference material describing how the API behaves

JSONSchema

JSONSchema

JSONSchema

Documentation

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

JSONLD

Lifecycle

Conventions

ErrorCatalog

Conformance

DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

OAuthScopes

OAuthScopes

Operate 3

Status, limits, changes, and where to get help

RateLimits

RateLimits

Support

Support

StatusPage

StatusPage

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

LinkedIn

Blog

Blog

Website

Website

Source (apis.yml)

name: Medium
aid: medium
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  generated: '2026-08-28'
  method: derived
specificationVersion: '0.23'
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: high
  source:
  - finops
  - authentication
  - scopes
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/medium.png
url: https://raw.githubusercontent.com/api-evangelist/medium/refs/heads/main/apis.yml
apis:
- aid: medium:medium-authorization-api
  name: medium Authorization API
  description: Endpoints for initiating the OAuth2 authorization flow by redirecting users to Medium's authorization page.
  humanURL: https://github.com/Medium/medium-api-docs
  baseURL: https://api.medium.com/v1
  tags:
  - Authorization
  properties:
  - type: OpenAPI
    url: openapi/medium-authorization-api-openapi.yml
  - type: Documentation
    url: https://github.com/Medium/medium-api-docs
  - type: Documentation
    url: https://github.com/Medium/medium-api-docs#2-authentication
  - type: Overlay
    url: overlays/medium-authorization-api-overlay.yaml
- aid: medium:medium-images-api
  name: medium Images API
  description: Operations for uploading images to Medium for use in posts. Supports JPEG, PNG, GIF, and TIFF formats.
  humanURL: https://github.com/Medium/medium-api-docs
  baseURL: https://api.medium.com/v1
  tags:
  - Image
  tags_raw:
  - Images
  properties:
  - type: OpenAPI
    url: openapi/medium-images-api-openapi.yml
  - type: Documentation
    url: https://github.com/Medium/medium-api-docs
  - type: Documentation
    url: https://github.com/Medium/medium-api-docs#2-authentication
  - type: Overlay
    url: overlays/medium-images-api-overlay.yaml
- aid: medium:medium-posts-api
  name: medium Posts API
  description: Operations for creating new posts on a user's profile or within a publication, supporting HTML and Markdown
    content formats.
  humanURL: https://github.com/Medium/medium-api-docs
  baseURL: https://api.medium.com/v1
  tags:
  - Posts
  properties:
  - type: OpenAPI
    url: openapi/medium-posts-api-openapi.yml
  - type: Documentation
    url: https://github.com/Medium/medium-api-docs
  - type: Documentation
    url: https://github.com/Medium/medium-api-docs#2-authentication
  - type: Overlay
    url: overlays/medium-posts-api-overlay.yaml
- aid: medium:medium-publications-api
  name: medium Publications API
  description: Operations for listing publications a user is associated with and retrieving contributors for a given publication.
  humanURL: https://github.com/Medium/medium-api-docs
  baseURL: https://api.medium.com/v1
  tags:
  - Publications
  properties:
  - type: OpenAPI
    url: openapi/medium-publications-api-openapi.yml
  - type: Documentation
    url: https://github.com/Medium/medium-api-docs
  - type: Documentation
    url: https://github.com/Medium/medium-api-docs#2-authentication
  - type: Overlay
    url: overlays/medium-publications-api-overlay.yaml
- aid: medium:medium-tokens-api
  name: medium Tokens API
  description: Endpoints for exchanging authorization codes for access tokens and refreshing expired access tokens.
  humanURL: https://github.com/Medium/medium-api-docs
  baseURL: https://api.medium.com/v1
  tags:
  - Tokens
  properties:
  - type: OpenAPI
    url: openapi/medium-tokens-api-openapi.yml
  - type: Documentation
    url: https://github.com/Medium/medium-api-docs
  - type: Documentation
    url: https://github.com/Medium/medium-api-docs#2-authentication
  - type: Overlay
    url: overlays/medium-tokens-api-overlay.yaml
- aid: medium:medium-users-api
  name: medium Users API
  description: Operations for retrieving authenticated user profile information including username, name, URL, and avatar
    image.
  humanURL: https://github.com/Medium/medium-api-docs
  baseURL: https://api.medium.com/v1
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/medium-users-api-openapi.yml
  - type: Documentation
    url: https://github.com/Medium/medium-api-docs
  - type: Documentation
    url: https://github.com/Medium/medium-api-docs#2-authentication
  - type: Overlay
    url: overlays/medium-users-api-overlay.yaml
common:
- type: Plans
  url: plans/medium-plans-pricing.yml
- type: RateLimits
  url: rate-limits/medium-rate-limits.yml
- type: FinOps
  url: finops/medium-finops.yml
- type: AgenticAccess
  url: agentic-access/medium-agentic-access.yml
- type: DomainSecurity
  url: security/medium-domain-security.yml
- type: Authentication
  url: authentication/medium-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/medium-com
- type: JSONLD
  url: json-ld/medium-context.jsonld
- type: JSONSchema
  url: json-schema/medium-post-schema.json
- type: JSONSchema
  url: json-schema/medium-user-schema.json
- type: JSONSchema
  url: json-schema/medium-publication-schema.json
- url: https://medium.com/feed/blog
  type: Blog
- type: Website
  url: https://medium.com
- type: GitHubOrganization
  url: https://github.com/Medium
- type: Documentation
  url: https://github.com/Medium/medium-api-docs
- type: APIReference
  url: https://github.com/Medium/medium-api-docs#3-resources
- type: GettingStarted
  url: https://github.com/Medium/medium-api-docs#2-authentication
- type: Support
  url: https://help.medium.com/
- type: StatusPage
  url: https://status.medium.com/
- type: Lifecycle
  url: lifecycle/medium-lifecycle.yml
- type: Packages
  url: packages/medium-packages.yml
- type: SDKs
  url: packages/medium-packages.yml
- type: OAuthScopes
  url: scopes/medium-scopes.yml
- type: Conventions
  url: conventions/medium-conventions.yml
- type: ErrorCatalog
  url: errors/medium-problem-types.yml
- type: Conformance
  url: conformance/medium-conformance.yml
- type: DataModel
  url: data-model/medium-data-model.yml
- type: LLMsTxt
  url: llms/medium-llms.txt
- type: AgentSkill
  url: skills/_index.yml
modified: '2026-09-17'
description: 'Medium is an online publishing platform where writers publish stories and readers follow topics, publications
  and authors. Its developer surface is a small OAuth2 REST API at api.medium.com/v1 that lets an integration read the authenticated
  user''s profile, list the publications they write to or edit, upload images, and publish posts to a profile or into a publication.
  Medium states the API is no longer supported and does not accept new integrations: existing tokens continue to work, but
  new integration tokens have not been issued since 2023 and the documentation repository was archived in 2023.'
tags:
- Publishing
- Content
- Blogging
- Media
- Social
- Writing
- OAuth
- Deprecated API
- Authentication
tags_raw:
- Publishing
- Content
- Blogging
- Media
- Social
- Writing
- OAuth2
- Deprecated API
- Authentication
created: '2026-05-04'
position: Producing
maintainers:
- FN: API Evangelist
  email: info@apievangelist.com
  url: https://apievangelist.com
x-enrichment:
  date: '2026-09-17'
  status: enriched
  artifacts_added: 19
  pass: local-v3

Medium API — frequently asked questions

Does Medium have an API?

Yes. APIs.io lists 6 APIs from Medium, including medium Authorization API, medium Images API and medium Posts API, and 3 more.

Is there an OpenAPI specification for the Medium API?

Yes. APIs.io indexes 6 OpenAPI specifications for Medium, each linked for download from this page.

How do I authenticate with the Medium API?

Medium uses bearer-token authentication (http/oauth2 · 2 schemes). The details are profiled on APIs.io as Medium Authentication.

Is the Medium API ready for AI agents?

Medium has a Kin Score of 36.2 out of 100 (thin) and an Agent Readiness score of 27.0 (agent-aware), scored by API Evangelist on 2026-11-06.

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get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
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apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
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