# Particle Pro – List Bill Actions

> Particle Pro – List Bill Actions is a paid API for AI agents from api.particle.pro, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Returns a paginated, chronologically ordered list of legislative actions taken on a specific bill in the US Congress.

## Facts

- Endpoint: GET https://api.particle.pro/v1/congress/bills/:id/actions
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/particle-pro-list-bill-actions-f9cabc6f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-rfPZql15aK85dK2a2HTZ

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-list-bill-actions-f9cabc6f
```

Example prompt: Can you pull up all the legislative actions taken on bill HR 3684 in chronological order, so I can see exactly what steps it has gone through in Congress?

## When to prefer this

Use this endpoint when you need the full chronological action history of a specific US congressional bill — including committee referrals, amendments, floor votes, and presidential actions. Prefer this over general news or article search endpoints when you need structured, authoritative legislative data rather than media coverage.

## Known failure modes

- Invalid or non-existent bill ID returns an error or empty result
- Pagination parameters out of range may return empty pages
- Rate limiting or payment failure may block the request
- Network timeout if the legislative database is slow to respond

## How this service works

List bill actions. Returns a paginated list of legislative actions taken on a bill, ordered chronologically.

## Output

A paginated list of legislative actions for the specified bill, each entry containing details such as the action date, description, and action type, ordered chronologically from earliest to most recent.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/particle-pro-list-bill-actions-f9cabc6f/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)