Cheddar Up website screenshot

Cheddar Up

Cheddar Up is an all-in-one online platform that helps groups and communities collect payments and forms in one place. Purpose-built for PTAs/PTOs, booster clubs, youth sports teams, nonprofits, schools, clubs, HOAs, churches, and other volunteer-led organizations, it lets organizers collect dues, registrations, donations, event fees, fundraisers, and group gifts without any technical setup. It combines online payments (credit card, e-check, Apple Pay, Google Pay, and Link), custom forms, waivers, sign-ups, recurring payments, itemized storefronts, automated tracking and reporting, and multi-manager team administration. For technical users, Cheddar Up exposes an embeddable JavaScript SDK (a guest-facing Checkout component instantiated via CheddarUpWidgetFactory), API keys on the Team plan, and a native webhooks integration for syncing collection and payment events to external apps.

Cheddar Up is profiled on the APIs.io network. Tagged areas include Company, Payments, Group Payments, Fundraising, and Non-Profit.

The Cheddar Up catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Cheddar Up’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, signup flow, and 11 more developer resources.

🌐 Visit website 📡 Source on GitHub
38.2/100 thin ▬ flat Agent 29/100 agent aware Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0
AccessSelf serve
0 APIs
CompanyPaymentsGroup PaymentsFundraisingNon-ProfitSchoolsFormsFintechPayment Collection

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0
Composite quality — 38.2/100 · thin
Contract Quality 9.6 / 21
Developer Ergonomics 9.7 / 17
Access Clarity 7.6 / 17
Operational Transparency 0.9 / 11
Contract Governance 0.0 / 10
Discoverability 4.9 / 9
Regulatory Posture 4.7 / 15
Agent readiness — 29/100 · agent aware
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
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/cheddar-up: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Event Specifications 1

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

Cheddar Up Webhooks

ASYNCAPI

Security Posture 2

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

Cheddar Up Authentication

apiKey · 2 schemes

SECURITY

Cheddar Up Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp
 Login
Login

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt
 WellKnown
WellKnown

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Components
Components
 Webhooks
Webhooks

Access & Security 2

Authentication, authorization, and security posture

Authentication
Authentication
 DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support
Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: cheddar-up
name: Cheddar Up
description: Cheddar Up is an all-in-one online platform that helps groups and communities collect payments and forms in one
  place. Purpose-built for PTAs/PTOs, booster clubs, youth sports teams, nonprofits, schools, clubs, HOAs, churches, and other
  volunteer-led organizations, it lets organizers collect dues, registrations, donations, event fees, fundraisers, and group
  gifts without any technical setup. It combines online payments (credit card, e-check, Apple Pay, Google Pay, and Link),
  custom forms, waivers, sign-ups, recurring payments, itemized storefronts, automated tracking and reporting, and multi-manager
  team administration. For technical users, Cheddar Up exposes an embeddable JavaScript SDK (a guest-facing Checkout component
  instantiated via CheddarUpWidgetFactory), API keys on the Team plan, and a native webhooks integration for syncing collection
  and payment events to external apps.
url: https://raw.githubusercontent.com/api-evangelist/cheddar-up/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
image: https://www.cheddarup.com/wp-content/uploads/2021/10/CUp_Logo_2c.svg
tags:
- Company
- Payments
- Group Payments
- Fundraising
- Non-Profit
- Schools
- Forms
- Fintech
- Payment Collection
tags_raw:
- Company
- Payments
- Group Payments
- Fundraising
- Nonprofits
- Schools
- Forms
- Fintech
- Payment Collection
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://cheddarup.com
- type: DeveloperPortal
  url: https://docs.cheddarup.com/
- type: Documentation
  url: https://docs.cheddarup.com/
- type: APIReference
  url: https://docs.cheddarup.com/javascript-sdk/component-use/checkout
- type: GettingStarted
  url: https://www.cheddarup.com/how-does-cheddar-up-work/
- type: Support
  url: https://support.cheddarup.com/
- type: Blog
  url: https://www.cheddarup.com/blog/
- type: Pricing
  url: https://www.cheddarup.com/pricing/
- type: SignUp
  url: https://my.cheddarup.com/signup
- type: Login
  url: https://my.cheddarup.com/login
- type: TermsOfService
  url: https://www.cheddarup.com/termsofuse/
- type: PrivacyPolicy
  url: https://www.cheddarup.com/privacypolicy/
- type: Integrations
  url: https://www.cheddarup.com/integrations/
- type: LLMsTxt
  url: llms/cheddar-up-llms.txt
- type: Components
  url: components/cheddar-up-components.yml
- type: Authentication
  url: authentication/cheddar-up-authentication.yml
- type: Webhooks
  url: asyncapi/cheddar-up-webhooks.yml
- type: WellKnown
  url: well-known/cheddar-up-well-known.yml
- type: DomainSecurity
  url: security/cheddar-up-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence