gov.fec-committee

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.

price
$0.0012 USDC per call
method
GET/api/gov/fec-committee
payment
x402 v2 · USDC on Base (EIP-3009) or Solana (SPL transfer)
auth
None. Sign the payment, retry with PAYMENT-SIGNATURE.
tier
Tier 0 — no paid upstream

Parameters

NameTypeDescription
qstring
min 1 chars · max 120 chars
committeeIdstring
match ^C\d{8}$
candidateIdstring
match ^[A-Z]\d[A-Z0-9]{7}$
committeeTypestring
match ^[A-Za-z]$
designationstring
match ^[A-Za-z]$
statestring
min 2 chars · max 2 chars · match ^[A-Za-z]{2}$
partystring
match ^[A-Za-z]{3,4}$
cycleinteger
min 1980 · max 2100
organizationTypestring
match ^[A-Za-z]$
perPageinteger
min 1 · max 100
pageinteger
min 1

Code samples

cURLbash
# 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=example&designation=example&state=xx&party=example&cycle=1980&organizationType=example&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=example&designation=example&state=xx&party=example&cycle=1980&organizationType=example&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=example&designation=example&state=xx&party=example&cycle=1980&organizationType=example&perPage=25&page=1'
TypeScript / Node — @2sio/sdktypescript
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": "example",
  "designation": "example",
  "state": "xx",
  "party": "example",
  "cycle": 1980,
  "organizationType": "example",
  "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)
Python — 2siopython
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="example", designation="example", state="xx", party="example", cycle=1980, organizationType="example", 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)
MCP — Claude Desktop / AgentKit / any MCP hostjson
// 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": "example",
      "designation": "example",
      "state": "xx",
      "party": "example",
      "cycle": 1980,
      "organizationType": "example",
      "perPage": 25,
      "page": 1
    }
  }
}

Discovery

2s.io is x402-native. Every call is paid per-request from a USDC-funded EVM wallet on Base — no signup, no API keys, no monthly fees. Source code: github.com/2s-io/sdk.