Discovery needs no key. Ratings and market analysis are Pro.
Get an API key
Free tier, no form to fill in. Signing in shares your email address with us — we
store it to create your key and to recognise you if you sign in with another
provider. See our Privacy Policy and
Terms.
openapi: 3.2.0
info:
title: Essentials API
description: Search GuideStar's most common set of data about nonprofits to quickly find organizations most relevant to your users, and use those results to get more data from our other APIs. API returns search result in JSON format.
version: '1.0'
servers:
- url: https://api.candid.org/essentials
- url: https://apidata.guidestar.org/essentials
security:
- apiKeyHeader: []
- apiKeyQuery: []
tags:
# --- truncated at 32 KB (76 KB total) ---
# Full source: https://raw.githubusercontent.com/api-evangelist/candid/refs/heads/main/openapi/candid-essentials-api-openapi.yml