Search US federal political committees (PACs, super PACs, party committees, candidate principal committees, leadership PACs, etc.) via the OpenFEC API. Filter by q (name match), committee ID, candidate ID (returns committees linked to that candidate), committee type (P=Presidential | S=Senate | H=House | X=Independent expenditure-only | Y=Party | Z=National Party non-federal), designation (A=Authorized | J=Joint fundraising | P=Principal | U=Unauthorized | B=Lobbyist/Registrant PAC), state, party, cycle, organization type (C=Corporation | L=Labor | M=Membership | T=Trade | V=Cooperative | W=Corp without stock). Returns FEC committee ID, name, type/designation/organization labels, state, party, treasurer, linked candidate IDs, cycles, affiliated-committee names, first/last file dates.
/api/gov/fec-committeePAYMENT-SIGNATURE.The fec committee API is a pay-per-call gov endpoint built for AI agents and autonomous software. Search US federal political committees (PACs, super PACs, party committees, candidate principal committees, leadership PACs, etc.) via the OpenFEC API.
There is no signup and no API key. An agent (or any HTTP client) hits the endpoint, receives an x402 "402 Payment Required" challenge, signs a sub-cent USDC payment on Base or Solana, and retries — the data comes back on the paid request. That makes it a drop-in fec committee data source for an agent tool-use loop, an MCP host, or a backend that needs gov data on demand without onboarding to yet another vendor portal.
| Name | Type | Description |
|---|---|---|
q | string | min 1 chars · max 120 chars |
committeeId | string | match ^C\d{8}$ |
candidateId | string | match ^[A-Z]\d[A-Z0-9]{7}$ |
committeeType | string | one of: P | S | H | X | Y | Z | N | I | O | Q | U | V | W | D | E |
designation | string | one of: A | J | P | U | B | D |
state | string | min 2 chars · max 2 chars · match ^[A-Za-z]{2}$ |
party | string | match ^[A-Za-z]{3,4}$ |
cycle | integer | min 1980 · max 2100 |
organizationType | string | one of: C | L | M | T | V | W |
perPage | integer | min 1 · max 100 |
page | integer | min 1 |
# 1. Probe with no auth → 402 envelope with PaymentRequirements curl -sS 'https://2s.io/api/gov/fec-committee?q=example&committeeId=example&candidateId=example&committeeType=P&designation=A&state=xx&party=example&cycle=1980&organizationType=C&perPage=25&page=1' # 2. Sign + retry with PAYMENT-SIGNATURE: curl -sS 'https://2s.io/api/gov/fec-committee?q=example&committeeId=example&candidateId=example&committeeType=P&designation=A&state=xx&party=example&cycle=1980&organizationType=C&perPage=25&page=1' \ -H 'PAYMENT-SIGNATURE: <base64-json-payload>' # Or use the canonical runner (handles probe → sign → retry): # EVM_PRIVATE_KEY=0x... node --env-file=.env.local \ # --experimental-strip-types scripts/x402-pay.ts \ # 'https://2s.io/api/gov/fec-committee?q=example&committeeId=example&candidateId=example&committeeType=P&designation=A&state=xx&party=example&cycle=1980&organizationType=C&perPage=25&page=1'
import { TwoS } from '@2sio/sdk'
const client = new TwoS({
privateKey: process.env.EVM_PRIVATE_KEY as `0x${string}`,
})
const result = await client.gov.fecCommittee({
"q": "example",
"committeeId": "example",
"candidateId": "example",
"committeeType": "P",
"designation": "A",
"state": "xx",
"party": "example",
"cycle": 1980,
"organizationType": "C",
"perPage": 25,
"page": 1
})
console.log('endpoint:', result.endpoint)
console.log('cost:', result.costUsd, 'USDC')
console.log('tx:', result.settlement?.txHash)
console.log('data:', result.data)import os
from twosio import TwoS
client = TwoS(private_key=os.environ["EVM_PRIVATE_KEY"])
result = client.gov.fec_committee(q="example", committeeId="example", candidateId="example", committeeType="P", designation="A", state="xx", party="example", cycle=1980, organizationType="C", perPage=25, page=1)
print("endpoint:", result.endpoint)
print("cost:", result.cost_usd, "USDC")
print("tx:", (result.settlement or {}).get("tx_hash"))
print("data:", result.data)// 1. Add @2sio/mcp to your MCP host config (Claude Desktop example below).
// EVM_PRIVATE_KEY funds x402 payments per call.
// claude_desktop_config.json
{
"mcpServers": {
"2sio": {
"command": "npx",
"args": ["-y", "@2sio/mcp"],
"env": { "EVM_PRIVATE_KEY": "0x..." }
}
}
}
// 2. Once the server is running, agents call this tool via standard MCP:
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "gov.fec-committee",
"arguments": {
"q": "example",
"committeeId": "example",
"candidateId": "example",
"committeeType": "P",
"designation": "A",
"state": "xx",
"party": "example",
"cycle": 1980,
"organizationType": "C",
"perPage": 25,
"page": 1
}
}
}| Field | Type | Description |
|---|---|---|
ok | boolean | one of: true |
items | array | |
total | integer | Total matching rows upstream; null when unknown. |
source | object | |
page | object |
{
"ok": true,
"items": [
{}
],
"total": 1,
"source": {
"provider": "example",
"url": "example",
"license": "example"
},
"page": {
"number": 1,
"size": 1,
"pages": 1
}
}