CharityAPI
CharityAPI provides REST endpoints for looking up US nonprofit organizations by EIN, performing public charity 501c3 verification checks, and powering autocomplete search across the IRS Business Master File. The API supports donation platforms, fundraising tools, and compliance workflows that need authoritative tax-status data.
Documentation
Documentation
https://docs.charityapi.org/
GettingStarted
https://docs.charityapi.org/main
Authentication
https://docs.charityapi.org/authentication
Specifications
Other Resources
Organizations
https://docs.charityapi.org/organizations
Pricing
https://www.charityapi.org/pricing
SignUp
https://www.charityapi.org/get-started
Spectral
spectral/charityapi-spectral.yml
NaftikoCapabilities
naftiko/charityapi-capabilities.yml
OpenAPI
#501c3
#Charities
#EIN
#IRS
#Non-Profits
#Verification