Ko-fi website screenshot

Ko-fi

Ko-fi is a creator monetization platform where fans support creators through one-off tips ("buy me a coffee"), recurring memberships, digital and physical shop products, and paid commissions. Ko-fi charges 0% platform fee on tips and donations. Its developer surface is intentionally narrow and integration-only: Ko-fi does not publish a public REST API. Instead it offers an outbound WEBHOOK that HTTP POSTs payment notifications (donations, subscription / membership payments, shop orders, and commissions) to a URL you configure on your Ko-fi webhooks page. Each POST is application/x-www-form-urlencoded with a single "data" field carrying a JSON payload, and includes a verification_token so you can confirm the request originated from Ko-fi. The webhook is one-way (Ko-fi to your endpoint) and fires only when a payment happens - there is no request/response API to read, create, or manage donations, members, or orders.

Ko-fi publishes 1 API on the APIs.io network: Webhook. Tagged areas include Creator Economy, Donations, Tips, Memberships, and Shop.

The Ko-fi catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Ko-fi’s developer surface includes documentation, engineering blog, and 6 more developer resources.

25.6/100 emerging ▬ flat Agent 17/100 agent aware Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0
AccessFreemium
1 APIs
Creator EconomyDonationsTipsMembershipsShopPaymentsWebhookCreator Monetization

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0
Composite quality — 25.6/100 · emerging
Contract Quality 9.3 / 21
Developer Ergonomics 2.0 / 17
Access Clarity 4.9 / 17
Operational Transparency 2.3 / 11
Contract Governance 1.2 / 10
Discoverability 5.0 / 9
Regulatory Posture 1.4 / 15
Agent readiness — 17/100 · agent aware
Machine-Readable Contract 18 / 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 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 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Surface 0 / 5
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.
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/.
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/ko-fi: 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 1

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

Ko-fi Webhook

Outbound webhook that Ko-fi HTTP POSTs to a URL you configure whenever a payment happens on your Ko-fi page. The single POST body is form-encoded with a "data" field containing ...

Pricing Plans 1

Published pricing tiers and plan structures.

Ko Fi Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Ko Fi Rate Limits

2 limits

RATE LIMITS

FinOps 1

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

Ko Fi Finops

FINOPS

Event Specifications 1

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

Ko-fi Payment Webhook (Outbound HTTP POST)

AsyncAPI 2.6 description of Ko-fi's **only** documented developer surface: an **outbound payment webhook**. Ko-fi does **not** publish a public REST API. There is no request/res...

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Ko-fi API Rules

6 rules · 1 errors 5 warnings

SPECTRAL

Security Posture 1

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

Ko Fi Domain Security

TLSv1.2 · HSTS · DMARC

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Access & Security 1

Authentication, authorization, and security posture

Operate 1

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

Company 3

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: ko-fi
url: https://raw.githubusercontent.com/api-evangelist/ko-fi/refs/heads/main/apis.yml
name: Ko-fi
kind: company
description: 'Ko-fi is a creator monetization platform where fans support creators through one-off tips ("buy me a coffee"),
  recurring memberships, digital and physical shop products, and paid commissions. Ko-fi charges 0% platform fee on tips and
  donations. Its developer surface is intentionally narrow and integration-only: Ko-fi does not publish a public REST API.
  Instead it offers an outbound WEBHOOK that HTTP POSTs payment notifications (donations, subscription / membership payments,
  shop orders, and commissions) to a URL you configure on your Ko-fi webhooks page. Each POST is application/x-www-form-urlencoded
  with a single "data" field carrying a JSON payload, and includes a verification_token so you can confirm the request originated
  from Ko-fi. The webhook is one-way (Ko-fi to your endpoint) and fires only when a payment happens - there is no request/response
  API to read, create, or manage donations, members, or orders.'
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/ko-fi.png
tags:
- Creator Economy
- Donations
- Tips
- Memberships
- Shop
- Payments
- Webhook
- Creator Monetization
tags_raw:
- Creator Economy
- Donations
- Tips
- Memberships
- Shop
- Payments
- Webhooks
- Creator Monetization
created: '2026-07-05'
modified: '2026-07-05'
specificationVersion: '0.23'
apis:
- aid: ko-fi:ko-fi-webhook
  name: Ko-fi Webhook
  tags:
  - Webhook
  - Payments
  - Donations
  - Memberships
  - Shop Orders
  - Commissions
  tags_raw:
  - Webhooks
  - Payments
  - Donations
  - Memberships
  - Shop Orders
  - Commissions
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://help.ko-fi.com/hc/en-us/articles/360004162298-Does-Ko-fi-have-an-API-or-webhook
  properties:
  - url: https://help.ko-fi.com/hc/en-us/articles/360004162298-Does-Ko-fi-have-an-API-or-webhook
    type: Documentation
  - url: https://ko-fi.com/manage/webhooks
    type: Console
  - url: asyncapi/ko-fi-asyncapi.yml
    type: AsyncAPI
  description: Outbound webhook that Ko-fi HTTP POSTs to a URL you configure whenever a payment happens on your Ko-fi page.
    The single POST body is form-encoded with a "data" field containing a JSON payload; a "type" field distinguishes the event
    - Donation, Subscription, Shop Order, or Commission - and a verification_token confirms the request came from Ko-fi. This
    is a one-way, server-to-endpoint notification, not a readable/queryable REST API. Modeled in asyncapi/ko-fi-asyncapi.yml
    as an inbound HTTP webhook (not WebSocket).
common:
- type: DomainSecurity
  url: security/ko-fi-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/ko-fi
- type: Website
  url: https://ko-fi.com
- type: Documentation
  url: https://help.ko-fi.com/hc/en-us/articles/360004162298-Does-Ko-fi-have-an-API-or-webhook
- type: Plans
  url: plans/ko-fi-plans-pricing.yml
- type: RateLimits
  url: rate-limits/ko-fi-rate-limits.yml
- type: FinOps
  url: finops/ko-fi-finops.yml
- url: https://blog.ko-fi.com
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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