aid: zeffy
url: https://raw.githubusercontent.com/api-evangelist/zeffy/refs/heads/main/apis.yml
name: Zeffy
kind: company
description: Zeffy is a 100% free fundraising platform for nonprofits - donation
  forms, event ticketing, peer-to-peer campaigns, memberships, e-commerce, and
  donor management - with no platform, transaction, or credit-card fees, funded
  entirely by optional tips from donors. Zeffy exposes a free public REST API that
  gives organization admins read-only access to their Payments, Contacts, and
  Campaigns data (base https://api.zeffy.com/api/v1), authenticated with a
  per-organization API key sent as a Bearer token, plus outbound webhooks that POST
  payment details to a configured URL when a payment is completed. Zeffy also
  integrates via Zapier, QuickBooks, and WordPress.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Fundraising
- Nonprofit
- Donations
- Payments
- Donor Management
- Free
- Webhooks
created: '2026-07-05'
modified: '2026-07-05'
specificationVersion: '0.19'
apis:
- aid: zeffy:zeffy-payments-api
  name: Zeffy Payments API
  tags:
  - Payments
  - Donations
  - Transactions
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://support.zeffy.com/get-started-with-the-zeffy-api-yourg
  baseURL: https://api.zeffy.com/api/v1
  properties:
  - url: https://www.zeffy.com/integration/api
    type: Documentation
  - url: https://support.zeffy.com/get-started-with-the-zeffy-api-yourg
    type: APIReference
  - url: openapi/zeffy-openapi.yml
    type: OpenAPI
  description: Read-only access to an organization's transactions. List all payments
    or look up a specific payment, filtering by currency, status, type (online,
    manual, or imported), contact, campaign, or date range. Each payment includes
    line items, refund details, buyer info, and a link to the tax receipt.
- aid: zeffy:zeffy-contacts-api
  name: Zeffy Contacts API
  tags:
  - Contacts
  - Donors
  - CRM
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://support.zeffy.com/get-started-with-the-zeffy-api-yourg
  baseURL: https://api.zeffy.com/api/v1
  properties:
  - url: https://www.zeffy.com/integration/api
    type: Documentation
  - url: https://support.zeffy.com/get-started-with-the-zeffy-api-yourg
    type: APIReference
  - url: openapi/zeffy-openapi.yml
    type: OpenAPI
  description: Read-only access to an organization's donor and supporter list.
    Retrieve the full contact list or look up a specific person by ID or email.
    Each contact includes giving history, total contributions, address, and
    communication preferences.
- aid: zeffy:zeffy-campaigns-api
  name: Zeffy Campaigns API
  tags:
  - Campaigns
  - Forms
  - Events
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://support.zeffy.com/get-started-with-the-zeffy-api-yourg
  baseURL: https://api.zeffy.com/api/v1
  properties:
  - url: https://www.zeffy.com/integration/api
    type: Documentation
  - url: https://support.zeffy.com/get-started-with-the-zeffy-api-yourg
    type: APIReference
  - url: openapi/zeffy-openapi.yml
    type: OpenAPI
  description: Read-only access to an organization's donation forms, events, and
    other campaign types. List campaigns or look up a specific campaign to see
    titles, descriptions, goals, dates, occurrences, and how much has been raised.
- aid: zeffy:zeffy-webhooks
  name: Zeffy Webhooks
  tags:
  - Webhooks
  - Events
  - Payments
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://support.zeffy.com/get-started-with-the-zeffy-api-yourg
  baseURL: https://api.zeffy.com/api/v1
  properties:
  - url: https://www.zeffy.com/integration/api
    type: Documentation
  - url: https://support.zeffy.com/get-started-with-the-zeffy-api-yourg
    type: APIReference
  description: Outbound webhooks configured under Settings then Integrations. When a
    payment is completed, Zeffy sends an HTTP POST with the full payment details to
    the organization's configured URL, enabling thank-you workflows, CRM/accounting
    sync, and internal notifications. This is Zeffy-to-consumer HTTP notification,
    not an inbound API surface.
common:
- type: DomainSecurity
  url: security/zeffy-domain-security.yml
- type: Authentication
  url: authentication/zeffy-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/zeffy
- type: Website
  url: https://www.zeffy.com
- type: Documentation
  url: https://www.zeffy.com/integration/api
- type: Plans
  url: plans/zeffy-plans-pricing.yml
- type: RateLimits
  url: rate-limits/zeffy-rate-limits.yml
- type: FinOps
  url: finops/zeffy-finops.yml
- type: Blog
  url: https://www.zeffy.com/blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com