Capitol Trace offers a public REST API serving normalized government data.

Base URL: https://capitoltrace.com/api

Live Endpoints (9)

• GET /members — Congressional roster with profiles
• GET /members/:id/trades — Stock transactions for a member
• GET /members/:id/donors — Campaign finance summary
• GET /members/:id/votes — Voting record
• GET /bills — Legislation search and filter
• GET /signals — AI-detected correlation signals
• GET /lobbying — Senate LDA lobbying filings
• GET /earmarks — Congressional directed spending
• GET /contracts — Federal contract awards

Authentication

All endpoints require a Bearer token. Get your key at capitoltrace.com/api-dashboard.

Pricing Tiers

• Free — 100 requests/day, core endpoints
• Researcher ($29/mo) — 10,000 requests/day, all endpoints
• Pro ($79/mo) — 100,000 requests/day + webhook alerts
• Newsroom ($299/mo) — Unlimited + priority support + bulk export

MCP Server