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legislative-timeline
x402
legislative-timeline is a paid API for AI agents from payai.agentstools.dev, paid per call via x402, $0.015/call, status unknown (last checked 2026-09-15).
Returns the lifecycle stages a US federal bill reached within a specified date window, including introduced, committee, passed, and enacted events with dates and source actions.
Price / call$0.015
Success—
StatusUnknown
How this service works
Stateless event diff for a US federal bill: which lifecycle stages it reached over a date window (introduced, committee, passed, enacted), each with date and source action. Source: Congress.gov, public-domain.
Output
A list of lifecycle events for the specified bill within the requested date window. Each event includes the stage name (e.g. introduced, committee, passed, enacted), the date it occurred, and the source action from Congress.gov that triggered the stage change.
Example use cases
Track bill enactment after committee markup
“Did S 1234 from the 118th Congress move past committee or get enacted in the last 90 days? Show me each stage it reached with the dates.”
Monitor newly introduced legislation
“Has HR 7521 from the 118th Congress been introduced or seen any legislative movement since March 1, 2024?”
Policy research on bill progression
“I'm researching federal climate legislation — can you pull the full lifecycle timeline for HJRES 98 from the 118th Congress and tell me every stage it reached and when?”
Technical details
Endpoint
GEThttps://payai.agentstools.dev/legislative/timelineWhen to prefer
Use this endpoint when you need to know which legislative stages a specific US federal bill has reached within a defined time period, sourced authoritatively from Congress.gov. Prefer this over general web search when you need structured, date-stamped lifecycle events rather than news articles or summaries. Ideal for policy monitoring agents, legislative trackers, or compliance workflows that need to detect bill progression automatically.
Side effects
- Invalid or unrecognized bill ID format returns an error or empty result
- Bill not found for given congress, type, and number combination returns empty or 404-like response
- Date window with no events returns an empty events array
- Missing required parameters (bill_id or billType+billNumber+congress) returns a validation error
- Congress.gov data lag may mean very recent actions are not yet reflected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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