gov.representatives

Your sitting members of the US Congress for a location. Pass a US address (geocoded to its state + congressional district for you), or an explicit state (2-letter) with optional district number. Returns the current US House representative for that district plus the state's two US senators — each with full name, party, state/district, the Bioguide ID, DC office, phone, official website, and contact form. State-only returns just the two senators; territories/DC return their non-voting delegate (no senators). Bundled CC0 data (unitedstates/congress-legislators), refreshed periodically. Fills the gap after gov.district (which gives the district, not the people) — for civic lookup, advocacy, and constituent tooling.

price

$0.0012 USDC per call

method

GET/api/gov/representatives

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
`address`	string	min 5 chars · max 200 chars
`state`	string	min 2 chars · max 2 chars
`district`

Code samples

cURLbash

# 1. Probe with no auth → 402 envelope with PaymentRequirements
curl -sS 'https://2s.io/api/gov/representatives?address=xxxxx&state=xx&district=example'

# 2. Sign + retry with PAYMENT-SIGNATURE:
curl -sS 'https://2s.io/api/gov/representatives?address=xxxxx&state=xx&district=example' \
  -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/representatives?address=xxxxx&state=xx&district=example'

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.representatives({
  "address": "xxxxx",
  "state": "xx",
  "district": "example"
})

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.representatives(address="xxxxx", state="xx", district="example")

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.representatives",
    "arguments": {
      "address": "xxxxx",
      "state": "xx",
      "district": "example"
    }
  }
}

Response

Field	Type	Description
`query`	object
`resolved`	object
`house`	object
`senate`	array
`source`	array
`note`	string

Example response datajson

{
  "query": {
    "address": "example",
    "state": "example",
    "district": "example"
  },
  "resolved": {
    "matchedAddress": "example",
    "state": "example",
    "district": "example"
  },
  "house": {
    "bioguideId": "example",
    "name": "example",
    "chamber": "house",
    "party": "example",
    "state": "example",
    "district": "example",
    "phone": "example",
    "office": "example",
    "contactForm": "example",
    "website": "example",
    "termEnd": "example"
  },
  "senate": [
    {
      "bioguideId": "example",
      "name": "example",
      "chamber": "senate",
      "party": "example",
      "state": "example",
      "district": "example",
      "phone": "example",
      "office": "example",
      "contactForm": "example",
      "website": "example",
      "termEnd": "example"
    }
  ],
  "source": [
    {
      "provider": "example",
      "url": "example",
      "license": "example"
    }
  ],
  "note": "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.