Developers

The REST API and the MCP server: authentication, your first call, and the guides around the reference.

Getting started

API quickstartHow toGet an API key, make your first call to /v1/bill-search, follow the pages to the end of a result, and read your tracked items.
Authentication and permissionsConceptHow API keys authenticate, what each key permission allows, and how your plan's quota and rate limit apply.

AI assistants

Connecting the MCP serverHow toConnect Claude Desktop, Claude Code or another MCP client to CapitolMath, and the tools it gives the assistant: two for every kind of record, and five analysis tools.