Social — entry 022 of 39

Open Collective

Verified Jul 2026

Open Collective's GraphQL API (v2) queries collectives, expenses, transactions, and members for the platform's transparent nonprofit/open-source funding model, and public collective data is readable with no authentication at all. Its own docs flag the older REST API as still running but no longer developed, pointing new integrations at the GraphQL surface and a companion PDF service (for receipts and invoices) that accepts either a personal token or an OAuth bearer token. A personal access token, not a full OAuth app-review flow, is the documented way to authenticate for private or write access.

nonprofitopen-sourcegraphqlfundingtransparency
AuthenticationAPI KeySign up with the provider to obtain credentials.
HTTPSSupportedTraffic is encrypted in transit.
CORSEnabledCallable directly from browser JavaScript.
PricingFreeNo paid tier — free for the documented use case.
FormatsJSONResponses can be requested as JSON.

GreatAPIs Score

Score78out of 100
Authentication15/25API key required
Pricing20/20Free to use
Docs14/20Documentation URL provided
Formats9/15Single response format
Freshness20/20Verified within 6 months

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Scored 78 on greatapis.com
<a href="https://greatapis.com/api/open-collective/"><img src="https://greatapis.com/badge/open-collective.svg" alt="Scored 78 on greatapis.com"></a>

Auth quickstart

  1. Sign up with the provider to get an API key.
  2. Send it on every request as a headerAuthorization: <key>
  3. The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Stored keyNo key stored

Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.