# Particle Pro Congress Bills Search

> Particle Pro Congress Bills Search 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).

Searches US congressional bill titles using case-insensitive partial matching to find relevant legislation.

## Facts

- Endpoint: GET https://api.particle.pro/v1/congress/bills/search
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/particle-pro-congress-bills-search-3446e96d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_c40BsTY__cuIx55go9XC9

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability particle-pro-congress-bills-search-3446e96d
```

Example prompt: Search congressional bills for any legislation mentioning 'artificial intelligence' and show me what comes up.

## When to prefer this

Use this endpoint when you need to find specific US congressional bills by keyword or topic without knowing the exact bill number. Prefer this over listing all bills when you have a subject or phrase to search by. Ideal for policy research, journalism, advocacy, or compliance monitoring workflows that need to quickly surface relevant legislation.

## Known failure modes

- No bills found matching the search term — returns empty result set
- Query string too vague returns overwhelming number of results
- Typos in search term return no matches due to exact partial matching
- Service unavailable or rate limit exceeded returns error
- Payment failure (x402) if USDC balance is insufficient

## How this service works

Search bills. Searches bill titles using case-insensitive partial matching.

## Output

Returns a list of congressional bills whose titles partially match the search query, including bill identifiers, titles, congress session details, and relevant metadata for each matching bill.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/particle-pro-congress-bills-search-3446e96d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.particle.pro](https://www.zero.xyz/host/api.particle.pro/llms.txt)