There has been a lapse in appropriated federal funds as of October 1, 2025. Grants.gov and Simpler.Grants.gov will still be available, but service may be delayed with reduced Federal support staff presence.
For those programs affected by the funding lapse, the Grants.gov and Simpler.Grants.gov systems will accept and store applications until such time as the responsible awarding agency has the authority and funding to return to normal business operations.
API tools & management
What's available for developers
What you can do with an API key now
You can call our REST endpoints to search the full catalog of funding opportunities and retrieve detailed information for any record. Current capabilities include keywords, fielded search, pagination, sorting for large result sets, and fetching structured details for a single opportunity. You can also manage your own credentials to create, view, rotate, and revoke API keys.
Current limitations
- Inactive API keys are automatically disabled after 30 days without use.
- Write operations are not supported at this time, which means you cannot apply for funding, post/create opportunities, or create projects within an organization through the API.
- Rate limiting is enforced to ensure reliability for all users; by default, 60 requests per minute and 10,000 requests per day per key. if you need higher throughput for a production integration, please contact us to discuss options.
Additional management features (such as organization-level projects and roles) are on the roadmap but aren't available yet.
Developer quickstart
Make your first API request in minutes. Learn the basics of the Simpler.Grants.gov API.
