US federal lobbying disclosures for a public company (sourced from US Senate LDA filings). Pass ticker and optionally a from/to window (YYYY-MM-DD; defaults to ~3 years); returns each filing with the registrant name, the period (year + quarter), reported lobbying income/expenses in USD, and a link to the official Senate filing. Use it to track a company’s lobbying spend over time. Data by Finnhub.
/api/stocks/lobbyingPAYMENT-SIGNATURE.The lobbying API is a pay-per-call stocks endpoint built for AI agents and autonomous software. US federal lobbying disclosures for a public company (sourced from US Senate LDA filings).
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 lobbying data source for an agent tool-use loop, an MCP host, or a backend that needs stocks data on demand without onboarding to yet another vendor portal.
| Name | Type | Description |
|---|---|---|
tickerrequired | string | US-listed ticker symbol. min 1 chars · max 12 chars · match ^[A-Za-z][A-Za-z0-9.\-]{0,11}$ |
from | string | Earliest filing date YYYY-MM-DD (default: ~3 years ago). match ^\d{4}-\d{2}-\d{2}$ |
to | string | Latest filing date YYYY-MM-DD (default: today). match ^\d{4}-\d{2}-\d{2}$ |
limit | integer | Max filings to return (default 100). min 1 · max 500 |
# 1. Probe with no auth → 402 envelope with PaymentRequirements curl -sS 'https://2s.io/api/stocks/lobbying?ticker=example&from=2024-01-01&to=2024-01-01&limit=1' # 2. Sign + retry with PAYMENT-SIGNATURE: curl -sS 'https://2s.io/api/stocks/lobbying?ticker=example&from=2024-01-01&to=2024-01-01&limit=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/stocks/lobbying?ticker=example&from=2024-01-01&to=2024-01-01&limit=1'
import { TwoS } from '@2sio/sdk'
const client = new TwoS({
privateKey: process.env.EVM_PRIVATE_KEY as `0x${string}`,
})
const result = await client.stocks.lobbying({
"ticker": "example",
"from": "2024-01-01",
"to": "2024-01-01",
"limit": 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.stocks.lobbying(ticker="example", from="2024-01-01", to="2024-01-01", limit=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": "stocks.lobbying",
"arguments": {
"ticker": "example",
"from": "2024-01-01",
"to": "2024-01-01",
"limit": 1
}
}
}| Field | Type | Description |
|---|---|---|
ok | boolean | one of: true |
items | array | |
total | integer | Total matching rows upstream; null when unknown. |
source | object | |
meta | object |
{
"ok": true,
"items": [
{
"symbol": "example",
"name": "example",
"description": "example",
"year": 1,
"period": "example",
"income": 1,
"expenses": 1,
"documentUrl": "example"
}
],
"total": 1,
"source": {
"provider": "example",
"url": "example",
"license": "example"
},
"meta": {
"symbol": "example",
"from": "example",
"to": "example"
}
}