gov.congress-filings

Track US House members' financial-disclosure filings — including Periodic Transaction Reports (PTRs), the STOCK Act filings where members must disclose their stock trades within 45 days. Defaults to PTRs; pass type=annual|candidate|amendment|all to see other disclosure kinds. Filter by member name (q), 2-letter state, filing year, or filing-date range (dateFrom/dateTo). Each result gives the member, state + district, filing type (with a readable label), the filing/disclosure date, and a direct link to the source document (docUrl). The envelope total is the full count matching your filter — so q=Pelosi or year=2026 answers 'how many PTRs did they file'. Covers 2008→present (~8,200 PTRs), refreshed daily so new filings appear within ~a day. Note: by law trades are disclosed up to 45 days after they happen — this is current-to-the-filing, not real-time. Data: US House Clerk (public domain).

price

$0.0012 USDC per call

method

GET/api/gov/congress-filings

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

Name	Type	Description
`q`	string	min 1 chars · max 80 chars
`state`	string	min 2 chars · max 2 chars
`type`	string	min 1 chars · max 40 chars
`chamber`	string	one of: house \| senate
`year`	integer	min 2008 · max 2100
`dateFrom`	string	match ^\d{4}-\d{2}-\d{2}$
`dateTo`	string	match ^\d{4}-\d{2}-\d{2}$
`limit`	integer	min 1 · max 100
`offset`	integer	min 0 · max 100000

Code samples

cURLbash

# 1. Probe with no auth → 402 envelope with PaymentRequirements
curl -sS 'https://2s.io/api/gov/congress-filings?q=example&state=xx&type=example&chamber=house&year=2008&dateFrom=2024-01-01&dateTo=2024-01-01&limit=25&offset=0'

# 2. Sign + retry with PAYMENT-SIGNATURE:
curl -sS 'https://2s.io/api/gov/congress-filings?q=example&state=xx&type=example&chamber=house&year=2008&dateFrom=2024-01-01&dateTo=2024-01-01&limit=25&offset=0' \
  -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/congress-filings?q=example&state=xx&type=example&chamber=house&year=2008&dateFrom=2024-01-01&dateTo=2024-01-01&limit=25&offset=0'

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.congressFilings({
  "q": "example",
  "state": "xx",
  "type": "example",
  "chamber": "house",
  "year": 2008,
  "dateFrom": "2024-01-01",
  "dateTo": "2024-01-01",
  "limit": 25,
  "offset": 0
})

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.congress_filings(q="example", state="xx", type="example", chamber="house", year=2008, dateFrom="2024-01-01", dateTo="2024-01-01", limit=25, offset=0)

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.congress-filings",
    "arguments": {
      "q": "example",
      "state": "xx",
      "type": "example",
      "chamber": "house",
      "year": 2008,
      "dateFrom": "2024-01-01",
      "dateTo": "2024-01-01",
      "limit": 25,
      "offset": 0
    }
  }
}

Response

Field	Type	Description
`ok`	boolean	one of: true
`items`	array
`total`	integer	Total matching rows upstream; null when unknown.
`source`	object

Example response datajson

{
  "ok": true,
  "items": [
    {
      "docId": "example",
      "chamber": "example",
      "memberName": "example",
      "state": "example",
      "district": "example",
      "filingType": "example",
      "filingTypeLabel": "example",
      "filingYear": 1,
      "filingDate": "example",
      "docUrl": "example",
      "tradesParsed": false
    }
  ],
  "total": 1,
  "source": {
    "provider": "example",
    "url": "example",
    "license": "example"
  }
}

Discovery

/api/directory — full catalog of every endpoint
/openapi.json — OpenAPI 3.1 spec (per-op x-payment-info, x402Payment security)
/.well-known/x402 — machine-readable service descriptor for x402-aware crawlers
/.well-known/mcp/server-card.json — MCP SEP-1649 server card
/llms.txt — plain-text manifest for LLM ingestion

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.