Memberful

Memberful is a membership and subscription platform (owned by Patreon) that lets independent publishers, educators, and creators sell memberships, subscriptions, digital downloads, podcasts, and courses on their own site while Memberful handles checkout, recurring billing (via Stripe), and member management. Its public developer surface is a GraphQL API served per account at https://ACCOUNT.memberful.com/api/graphql, authenticated with an API key (bearer token) or OAuth 2.0 access token, covering Members, Subscriptions, Plans/Passes, Coupons, and Orders through queries and mutations. Memberful also provides OAuth 2.0 single sign-on for apps and HMAC-signed webhooks for member, subscription, plan, order, and download events.

Memberful is listed with 5 APIs on the APIs.io network, including Members API, Subscriptions API, Plans and Passes API, and 2 more. Tagged areas include Membership, Subscription, Payments, Creators, and GraphQL.

Memberful’s developer surface includes engineering blog, documentation, and 8 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

12.9/100 emerging ▬ flat Agent 1/100 human only Front door AI 1/6 silent Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemium

5 APIs

Membership Subscription Payments Creators GraphQLPatreon

Kin Score

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

Composite quality — 12.9/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 2.3 / 17

Access Clarity 1.3 / 17

Operational Transparency 2.3 / 11

Contract Governance 0.0 / 10

Discoverability 6.1 / 9

Regulatory Posture 1.6 / 15

Agent readiness — 1/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 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 Payments 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/.

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

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
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
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
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

12 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Access Clarity scores 7.9 — up to +18.4 composite points
Developer Ergonomics scores 13.8 — up to +17.2 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/memberful/apis.yml: open an issue on github.com/api-evangelist/memberful 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
Stripe App Marketplace and Partner Ecosystem (builders on Stripe)	standard	18.6	-	-

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.

GraphQL

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

Postman Collections

measured — observed by APIs.io (published)

APIs 5

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

Memberful Members API

Query members and their profiles, emails, subscriptions, downloads, and custom JSON metadata (up to 50 keys), and create, update, or delete members through GraphQL mutations. Cu...

Memberful Subscriptions API

Read and manage member subscriptions - the link between a member and the pass/plan they pay for - including status, current period, trial state, activation and expiration, and t...

Memberful Plans and Passes API

Query the passes members subscribe to (called "Plans" in the dashboard) and the plans (pricing options such as monthly or annual) within each pass, including price, interval, an...

Memberful Orders API

Query orders (transaction records) for a member or account, including totals, status, coupons applied, and the member and plan involved. Orders back the order.purchased, order.c...

Memberful OAuth SSO API

OAuth 2.0 Authorization Code flow (with PKCE) for signing members into external apps. Authorize at /oauth, exchange the code at /oauth/token, then query the signed-in member at ...

Open Collections 1

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

Memberful GraphQL API

OPEN COLLECTION

GraphQL 1

GraphQL schemas published by this provider.

Memberful GraphQL API

Memberful (a Patreon-owned membership and subscription platform) exposes a **native GraphQL API** - this is a real, documented GraphQL surface, not a REST-to-GraphQL projection.

GRAPHQL

Memberful API pricing

Not yet checked against Memberful's own pricing page. Compiled by API Evangelist on 2026-07-05 from memberful.com/pricing/; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Standard paid	—
Enterprise enterprise	—
Free / Starter (modeled - unconfirmed) free	—

Plan details, limits and sources →

Rate limits

GraphQL Requests: not published requests
Query Complexity: not published (modeled) complexity
Pagination Page Size: cursor-based (first/after/last/before) records

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

Pricing Plans 1

Published pricing tiers and plan structures.

Memberful Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Memberful Rate Limits

4 limits

RATE LIMITS

FinOps 1

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

Memberful Finops

FINOPS

Security Posture 2

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

Memberful Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Memberful Vulnerability Disclosure

no policy recorded

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

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 3

The organization behind the API

Blog

Blog

LinkedIn

Website

Website

Source (apis.yml)

aid: memberful
url: https://raw.githubusercontent.com/api-evangelist/memberful/refs/heads/main/apis.yml
name: Memberful
kind: company
description: Memberful is a membership and subscription platform (owned by Patreon) that lets independent publishers, educators,
  and creators sell memberships, subscriptions, digital downloads, podcasts, and courses on their own site while Memberful
  handles checkout, recurring billing (via Stripe), and member management. Its public developer surface is a GraphQL API served
  per account at https://ACCOUNT.memberful.com/api/graphql, authenticated with an API key (bearer token) or OAuth 2.0 access
  token, covering Members, Subscriptions, Plans/Passes, Coupons, and Orders through queries and mutations. Memberful also
  provides OAuth 2.0 single sign-on for apps and HMAC-signed webhooks for member, subscription, plan, order, and download
  events.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/memberful.png
tags:
- Membership
- Subscription
- Payments
- Creators
- GraphQL
- Patreon
tags_raw:
- Memberships
- Subscriptions
- Payments
- Creators
- GraphQL
- Patreon
created: '2026-07-05'
modified: '2026-10-06'
specificationVersion: '0.23'
apis:
- aid: memberful:memberful-members-api
  name: Memberful Members API
  tags:
  - Members
  - GraphQL
  - Metadata
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://memberful.com/help/custom-development-and-api/memberful-api/
  baseURL: https://ACCOUNT.memberful.com/api/graphql
  properties:
  - url: https://memberful.com/help/custom-development-and-api/memberful-api/
    type: Documentation
  - url: https://memberful.com/docs/api-reference/memberful-api
    type: APIReference
  - url: graphql/memberful-schema.graphql
    type: GraphQL
  - url: graphql/memberful-graphql.md
    type: GraphQL
  - url: collections/memberful.postman_collection.json
    type: PostmanCollection
  - url: collections/memberful.opencollection.json
    type: OpenCollection
  description: Query members and their profiles, emails, subscriptions, downloads, and custom JSON metadata (up to 50 keys),
    and create, update, or delete members through GraphQL mutations. Cursor-based pagination (first/after/before/last) is
    used for the member connection.
- aid: memberful:memberful-subscriptions-api
  name: Memberful Subscriptions API
  tags:
  - Subscription
  - Recurring Billing
  - GraphQL
  tags_raw:
  - Subscriptions
  - Recurring Billing
  - GraphQL
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://memberful.com/help/custom-development-and-api/memberful-api/
  baseURL: https://ACCOUNT.memberful.com/api/graphql
  properties:
  - url: https://memberful.com/help/custom-development-and-api/memberful-api/
    type: Documentation
  - url: https://memberful.com/docs/api-reference/memberful-api
    type: APIReference
  - url: graphql/memberful-schema.graphql
    type: GraphQL
  - url: graphql/memberful-graphql.md
    type: GraphQL
  - url: collections/memberful.postman_collection.json
    type: PostmanCollection
  - url: collections/memberful.opencollection.json
    type: OpenCollection
  description: Read and manage member subscriptions - the link between a member and the pass/plan they pay for - including
    status, current period, trial state, activation and expiration, and the associated plan pricing. Mutations create, update,
    and change subscriptions.
- aid: memberful:memberful-plans-api
  name: Memberful Plans and Passes API
  tags:
  - Plans
  - Passes
  - Pricing
  - GraphQL
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://memberful.com/help/custom-development-and-api/memberful-api/
  baseURL: https://ACCOUNT.memberful.com/api/graphql
  properties:
  - url: https://memberful.com/help/custom-development-and-api/memberful-api/
    type: Documentation
  - url: https://memberful.com/docs/api-reference/memberful-api
    type: APIReference
  - url: graphql/memberful-schema.graphql
    type: GraphQL
  - url: graphql/memberful-graphql.md
    type: GraphQL
  - url: collections/memberful.postman_collection.json
    type: PostmanCollection
  - url: collections/memberful.opencollection.json
    type: OpenCollection
  description: Query the passes members subscribe to (called "Plans" in the dashboard) and the plans (pricing options such
    as monthly or annual) within each pass, including price, interval, and label. Coupons that discount plans are also exposed
    here.
- aid: memberful:memberful-orders-api
  name: Memberful Orders API
  tags:
  - Order
  - Transaction
  - GraphQL
  tags_raw:
  - Orders
  - Transactions
  - GraphQL
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://memberful.com/help/custom-development-and-api/memberful-api/
  baseURL: https://ACCOUNT.memberful.com/api/graphql
  properties:
  - url: https://memberful.com/help/custom-development-and-api/memberful-api/
    type: Documentation
  - url: https://memberful.com/docs/api-reference/memberful-api
    type: APIReference
  - url: graphql/memberful-schema.graphql
    type: GraphQL
  - url: graphql/memberful-graphql.md
    type: GraphQL
  - url: collections/memberful.postman_collection.json
    type: PostmanCollection
  - url: collections/memberful.opencollection.json
    type: OpenCollection
  description: Query orders (transaction records) for a member or account, including totals, status, coupons applied, and
    the member and plan involved. Orders back the order.purchased, order.completed, order.refunded, and order.suspended webhook
    events.
- aid: memberful:memberful-oauth-sso-api
  name: Memberful OAuth SSO API
  tags:
  - OAuth
  - SSO
  - Authentication
  tags_raw:
  - OAuth
  - SSO
  - Authentication
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://memberful.com/help/custom-development-and-api/sign-in-for-apps-via-oauth/
  baseURL: https://ACCOUNT.memberful.com
  properties:
  - url: https://memberful.com/help/custom-development-and-api/sign-in-for-apps-via-oauth/
    type: Documentation
  description: OAuth 2.0 Authorization Code flow (with PKCE) for signing members into external apps. Authorize at /oauth,
    exchange the code at /oauth/token, then query the signed-in member at /api/graphql/member. Access tokens expire in 15
    minutes; refresh tokens last one year. Scope is accepted but ignored.
common:
- url: https://memberful.com/blog
  type: Blog
- type: VulnerabilityDisclosure
  url: security/memberful-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/memberful-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/memberful
- type: Website
  url: https://memberful.com
- type: Documentation
  url: https://memberful.com/help/custom-development-and-api/
- type: GitHubOrganization
  url: https://github.com/memberful
- type: Plans
  url: plans/memberful-plans-pricing.yml
- type: RateLimits
  url: rate-limits/memberful-rate-limits.yml
- type: FinOps
  url: finops/memberful-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Memberful API — frequently asked questions

Does Memberful have an API?

Yes. APIs.io lists 5 APIs from Memberful, including Memberful Members API, Memberful Subscriptions API and Memberful Plans and Passes API, and 2 more.

How much does the Memberful API cost?

APIs.io lists 3 pricing plans for Memberful, with each plan's price, limits and inclusions under Pricing on this page.

Is the Memberful API ready for AI agents?

Memberful has a Kin Score of 12.9 out of 100 (emerging) and an Agent Readiness score of 0.6 (human-only), scored by API Evangelist on 2026-11-06.

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