For AI agents: visit https://developer.candid.org/llms.txt for an index of all pages formatted in Markdown and endpoints in OpenAPI. Append .md to any documentation page URL to get its markdown version.
Jump to Content
Candid's API Developer PortalAPIsDatasetsUser guidesChangelog
HomeUser guidesAPIsChangelog
APIsDatasetsUser guidesChangelogLog inFree trialCandid's API Developer Portal
APIs
Log inFree trial

Documentation

  • Welcome to Candid's developer portal
  • Get API access
  • Whitelisting your website to bypass GuideStar registration
  • Account management and authentication
  • Status codes and rate limits
  • OpenAPI Specification docs
  • Running in Postman
  • Uptime and security
  • Release management
  • Candid API terms of services

APIs

  • RFP
    • /v1/opportunityget
    • /v1/profileget
    • /v1/searchget
  • Essentials API
    • Get started with Essentials
    • Essentials API v4 search examples
    • /essentials/v4post
    • /essentials/v3post
    • /essentials/v2post
    • /essentials/v1post
    • /essentials/lookupget
    • /essentials/lookup/{filter_name}get
    • /essentials/lookup/{filter_name}/{key_or_value}get
  • Premier API
    • Get started with Premier API
    • Premier API v4
    • /premier/v4get
    • /premier/v3get
    • /premier/v2get
    • /premier/v1get
    • /premier/v1/ftapdfget
    • /premier/v1/propdfget
  • Charity Check API
    • Get started with Charity Check
    • Charity Check API
    • Interpret Charity Check data fields
    • Charity Check example responses
    • FAQs - Charity Check
    • State-level Charity Check - California
    • /charitycheck/v1get
    • /charitycheck/v1/stateget
  • Charity Check Bulk API
    • Charity Check Bulk API
    • /charitycheckbulk/v1post
  • Charity Check PDF API
    • Charity Check PDF API
    • /charitycheckpdf/v2/pdfget
    • /charitycheckpdf/v1/pdfget
  • Demographics API
    • Get started with Demographics API
    • Organizational demographic data
    • /demographics/v1get
  • Grants API
    • Get started with Grants API
    • FAQs - Grants API
    • /summaryget
    • /fundersget
    • /recipientsget
    • /transactionsget
  • PDF API
    • Getting started with PDF API
    • Financial Trends Analysis PDF
    • Profile PDF
    • /complianceget
    • /ftaget
    • /profileget
  • News API
    • Get started with News API
    • Using News search parameters
    • News example searches
    • /news/v1/searchget
  • Nonprofit Eligibility API
    • Accept donations with Apple Pay
    • /eligible/v1get
  • Taxonomy API
    • Get started with Taxonomy API
    • Overview of GraphQL
    • Taxonomy example searches

SDKs

  • GuideStar's C# / .NET SDK
  • GuideStar's .NET core demonstration website

Essentials

  • /v1
    • /essentials/v1post
  • /v2
    • /essentials/v2post
  • /v3
    • /essentials/v3post
  • /v4
  • /lookup
    • /essentials/lookupget
  • /lookup/{filter_name}
    • /essentials/lookup/{filter_name}get
  • /lookup/{filter_name}/{key_or_value}
    • /essentials/lookup/{filter_name}/{key_or_value}get

/v4

Updated 2 days ago


/essentials/v3
/lookup
Did this page help you?

Updated 2 days ago


/essentials/v3
/lookup
Did this page help you?