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Particle Pro – List Congress Member Bills
x402
Particle Pro – List Congress Member Bills is a paid API for AI agents from api.particle.pro, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Returns all bills sponsored or cosponsored by a specific U.S. Congress member, identified by member ID.
Price / call$0.01
Success—
StatusUnknown
How this service works
List member bills. Returns bills sponsored or cosponsored by this congress member.
Output
A list of bills sponsored or cosponsored by the specified congress member, including bill identifiers, titles, sponsorship type (sponsor vs cosponsor), and related legislative metadata.
Example use cases
Legislator voting record research
“Can you get me the full list of bills that Congress member S000033 has sponsored or cosponsored? I'm researching their legislative track record.”
Policy lobbying activity tracker
“Find all bills sponsored or cosponsored by Congress member P000197 — I want to see what healthcare or climate legislation they've championed.”
Constituent constituent accountability report
“List every bill that my representative, Congress member L000287, has sponsored or cosponsored this session so I can share it with my advocacy group.”
Technical details
Endpoint
GEThttps://api.particle.pro/v1/congress/members/:id/billsWhen to prefer
Use this endpoint when you need a complete legislative history for a specific U.S. Congress member — both bills they introduced and those they cosponsored. Prefer this over general congressional search APIs when you already have a member ID and want their full bill portfolio rather than searching across all members or all bills.
Side effects
- Invalid or unknown member ID returns a 404 or empty result
- Missing member ID path parameter returns a 400 bad request
- API key or payment authentication failure returns 401/402
- Rate limiting or quota exhaustion returns 429
- Network timeout or upstream unavailability returns 503
Tags
x402
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