For AI agents: visit https://developer.candid.org/llms.txt for an index of all pages formatted in Markdown and endpoints in OpenAPI.
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/v4
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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/opportunity
get
/v1/profile
get
/v1/search
get
Essentials API
Get started with Essentials
Essentials API v4 search examples
/essentials/v4
post
/essentials/v3
post
/essentials/v2
post
/essentials/v1
post
/essentials/lookup
get
/essentials/lookup/{filter_name}
get
/essentials/lookup/{filter_name}/{key_or_value}
get
Premier API
Get started with Premier API
Premier API v4
/premier/v4
get
/premier/v3
get
/premier/v2
get
/premier/v1
get
/premier/v1/ftapdf
get
/premier/v1/propdf
get
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/v1
get
/charitycheck/v1/state
get
Charity Check Bulk API
Charity Check Bulk API
/charitycheckbulk/v1
post
Charity Check PDF API
Charity Check PDF API
/charitycheckpdf/v2/pdf
get
/charitycheckpdf/v1/pdf
get
Demographics API
Get started with Demographics API
Organizational demographic data
/demographics/v1
get
Grants API
Get started with Grants API
FAQs - Grants API
/summary
get
/funders
get
/recipients
get
/transactions
get
PDF API
Getting started with PDF API
Financial Trends Analysis PDF
Profile PDF
/compliance
get
/fta
get
/profile
get
News API
Get started with News API
Using News search parameters
News example searches
/news/v1/search
get
Nonprofit Eligibility API
Accept donations with Apple Pay
/eligible/v1
get
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/v1
post
/v2
/essentials/v2
post
/v3
/essentials/v3
post
/v4
/lookup
/essentials/lookup
get
/lookup/{filter_name}
/essentials/lookup/{filter_name}
get
/lookup/{filter_name}/{key_or_value}
/essentials/lookup/{filter_name}/{key_or_value}
get
/v4
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