US government data as JSON: SAM.gov contract opportunities, USAspending awards, Grants.gov grants.
Edgrapi is a free Government API that requires apiKey authentication, is served over HTTPS and supports CORS, so it can be called from the browser.
Connect Edgrapi to your AI agent over MCP, or call the REST API — in a few minutes.
Details from edgrapi.com.

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Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
Contains D.C. government public datasets, including crime, GIS, financial data, and so on
The Edgrapi is provided by Edgrapi (edgrapi.com). Connect Edgrapi to your AI agent over MCP, or call the REST API — in a few minutes.
Yes. The Edgrapi is listed in the Government category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
Yes. The Edgrapi uses apiKey authentication, so you need to register for credentials before making requests.
Yes. The Edgrapi supports CORS, so front-end JavaScript can call it directly.
Yes. The Edgrapi is served over HTTPS, so it's safe to use in production.