API Tools

delilahusa.com

MCP server that provides tools to search, retrieve, diff, and semantically query U.S. legislative bills via the LegiScan API.

1 endpoint36 known toolsFirst detected September 6, 2026Last detected September 25, 2026

ENDPOINT 1

https://mcp.delilahusa.com

No auth detected

MCP server metadata

Name: legislation
Version: 0.7.1

Capabilities

tools

Server instructions

Delilah gives you real U.S. legislative data for all 50 states, D.C. and Congress: bills, sponsors, roll-call votes with individual member positions, action history, bill texts, committees, hearings, session analytics, legislator scorecards, trending bills, the 2026 election slate, a change feed and per-state coverage. Search with semantic_search_bills (a plain-English question) or search_bills (structured filters), then pull the full record with get_bill detail:true. status_id: 1=Introduced, 2=In Committee, 3=Passed One Chamber, 4=Passed Both Chambers, 5=Signed into Law, 6=Vetoed, 7=Failed/Dead, 8=Chaptered. passed={4,5,8}, failed={6,7}, alive={1,2,3}. You are on the shared free tier (no API key was supplied). It is rate-limited per client and shares one monthly cap with every other free user. For your own cap, pass a Delilah API key as Authorization: Bearer <key> — get one at https://delilahusa.com/developers/request.

Known tools 36

search_bills

Search or list legislation with structured filters (GET /v1/bills).

Inferred read-only

semantic_search_bills

Vector search over the full text of every bill (GET /v1/search/semantic): describe what you want in plain English — 'protecting kids from social media', 'limits on rent increases' — and get the closest bills with a match_score.

Inferred read-only

get_bill

Fetch a single bill by its numeric bill_id (GET /v1/bills/{bill_id}), optionally merging in sub-resources: votes (roll calls with tallies), sponsors, history (action timeline), texts (version metadata), amendments, subjects, analyses (staff analyses), calendar (scheduled events), citations (statutes the bill touches), referrals (committee referrals), sast (same-as / similar-to companion bills in the other chamber or other states), supplements (fiscal notes and summaries).

Inferred read-only

get_bill_diff

Compare two versions of a bill's text (GET /v1/bills/{bill_id}/diff): a unified diff plus similarity, added/removed line and character counts, and changed-section highlights.

Inferred read-only

keyword_search_bills

Keyword search where EVERY term must appear (GET /v1/search/bills).

Inferred read-only

get_bill_text

The cleaned plain text of one bill-text version (GET /v1/texts/{text_id}), entities decoded, ready to quote or summarize.

Inferred read-only

get_bill_text_history

Timeline of all computed diffs between successive text versions of one bill (GET /v1/bills/{bill_id}/changes): what changed, when, and how much.

Inferred read-only

list_legislators

Search or list legislators (GET /v1/legislators) by jurisdiction, chamber, party, district, or name.

Inferred read-only

get_legislator

Fetch a legislator's profile by people_id (GET /v1/legislators/{people_id}), optionally merging in votes (every roll call they are recorded on, newest first, with their individual position: 1=Yea, 2=Nay, 3=Not Voting, 4=Absent) and bills (legislation they sponsor, with sponsor_type_id 1=primary, 2=cosponsor).

Inferred read-only

get_roll_call

Fetch a roll call by roll_call_id (GET /v1/votes/{roll_call_id}): the motion, chamber, date and yea/nay/absent tallies.

Inferred read-only

get_legislator_scorecard

One-call voting and sponsorship profile for a legislator (GET /v1/legislators/{people_id}/scorecard): participation, party-line alignment, bills sponsored and passed, notable votes.

Inferred read-only

list_committees

List legislative committees (GET /v1/committees), filterable by jurisdiction, chamber, or name search.

Inferred read-only

get_committee

Fetch a committee by committee_id (GET /v1/committees/{committee_id}), optionally merging in members (its roster, with roles) and hearings (its scheduled meetings).

Inferred read-only

list_hearings

Scheduled committee hearings across committees (GET /v1/hearings), filterable by jurisdiction and start date.

Inferred read-only

get_changes

Near-real-time feed of what changed (GET /v1/changes).

Inferred read-only

list_topics

The canonical topic taxonomy with per-topic bill counts (GET /v1/topics).

Inferred read-only

list_subjects

The raw subject taxonomy with per-subject bill counts (GET /v1/subjects).

Inferred read-only

list_sessions

Legislative sessions (GET /v1/sessions): regular and special sessions with their years, start/sine-die dates and a session_id.

Inferred read-only

get_session_dashboard

Headline counts for one legislative session (GET /v1/sessions/{id}/dashboard): bills filed, passed, signed, vetoed, roll calls, active legislators.

Inferred read-only

get_session_sponsor_stats

Legislators ranked by bills sponsored and passed in one session (GET /v1/sessions/{id}/sponsor-stats).

Inferred read-only

get_session_vote_participation

How many roll calls each legislator voted in versus missed during one session (GET /v1/sessions/{id}/vote-participation).

Inferred read-only

list_session_legislators

Every legislator who served in one session (GET /v1/sessions/{id}/legislators), with people_id.

Inferred read-only

get_session_breakdown

Bill count per status (by:'status', on the status_id ladder) or per subject (by:'subject') for one session (GET /v1/sessions/{id}/status-counts or /subject-counts).

Inferred read-only

list_states

The jurisdiction directory (GET /v1/states): the 50 states, D.

Inferred read-only

get_coverage

Per-state depth snapshot (GET /v1/coverage): how COMPLETE each jurisdiction's data is — bill counts, the share of bills holding at least one vote, text or sponsor, and whether the legislature is currently in session.

Inferred read-only

get_trending_bills

Bills with the most news coverage in the window (GET /v1/trending), optionally for one state.

Inferred read-only

list_bills_by_stage

Bills whose LATEST action in the window falls in a stage (GET /v1/bills-by-stage): introduced, committee, passed, executive (with the governor, signed, or vetoed), amendments, other.

Inferred read-only

get_weekly_stage_breakdown

One row per stage with the number of bills whose latest action landed there in the window (GET /v1/bills-weekly-breakdown).

Inferred read-only

list_candidates

Search the election-candidate directory (GET /v1/candidates): people running for office.

Inferred read-only

get_candidate

Fetch one election candidate by id (GET /v1/candidates/{id}): their party, office, district and cycle, plus an FEC filer id where the campaign has filed and a Bioguide id for sitting members of Congress.

Inferred read-only

get_midterms

The election slate for 2026-11-03 (GET /v1/midterms): races, candidates and ballot measures per state, with official results where available.

Inferred read-only

get_ballot_measure

Ballot measures (GET /v1/measures): the list for a state, or one measure by its number (e.

Inferred read-only

list_districts

District metadata by state and type (GET /v1/districts): congressional, state senate, state house.

Inferred read-only

get_candidate_photo

The URL of a candidate's official portrait (GET /v1/photos/{candidate_id} returns the image bytes).

Inferred read-only

get_usage

The current key's tier, monthly cap, requests used and remaining, and when the period resets (GET /v1/_meta/usage).

Inferred read-only

manage_webhooks

Manage the key's webhook subscriptions (/v1/webhooks).

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.legislation]
url = "https://mcp.delilahusa.com"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "legislation": {
      "type": "http",
      "url": "https://mcp.delilahusa.com"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: legislation
Remote MCP URL: https://mcp.delilahusa.com

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "legislation": {
      "url": "https://mcp.delilahusa.com"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "legislation": {
      "type": "http",
      "url": "https://mcp.delilahusa.com"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "legislation",
  "transport": "streamable-http",
  "url": "https://mcp.delilahusa.com"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

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Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

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