05.13.2025 - Charity Check API - Lookup by state_entity_id or ag_state_charity_reg_num

We added 2 path parameters to /charitycheck/v1/{state} endpoint to lookup charitable organizations that may or may not operate in California with Attorney General Registry and Franchise Tax Board data using state_entity_id or ag_state_charity_reg_num.

Example search with state_entity_id:

curl --request GET \
     --url 'https://api.candid.org/charitycheck/v1/CA?state_entity_id=200340&6' \
     --header 'accept: application/json'

Example search with ag_state_charity_reg_num:

curl --request GET \
     --url 'https://api.candid.org/charitycheck/v1/CA?ag_state_charity_reg_num=CT0190766' \
     --header 'accept: application/json'

This is available to all Charity Check API subscribers. Visit the Charity Check API docs to learn more.