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.

🌐 Visit website 📡 Source on GitHub
30.6/100 thin ▬ flat Agent 21/100 agent aware Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1
AccessFreemium
1 APIs
Creator EconomyDonationsTipsMembershipsShopPaymentsWebhooksCreator Monetization

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1
Composite quality — 30.6/100 · thin
Contract Quality 12.7 / 25
Developer Ergonomics 2.2 / 20
Commercial Clarity 5.8 / 20
Operational Transparency 2.7 / 13
Governance 5.0 / 12
Discoverability 5.9 / 10
Agent readiness — 21/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
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
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

Documentation
Documentation

Access & Security 1

Authentication, authorization, and security posture

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

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

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
- Webhooks
- Creator Monetization
created: '2026-07-05'
modified: '2026-07-05'
specificationVersion: '0.19'
apis:
- aid: ko-fi:ko-fi-webhook
  name: Ko-fi Webhook
  tags:
  - 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