Senate Trades API

Retrieve trading activity from US Senators disclosed under the STOCK Act. Track congressional purchases and sales for any ticker.

Endpoint

GET /v2/congress/senate/{symbol}

Authentication

The API supports multiple authentication methods:

Method	Example
Bearer token (recommended)	Authorization: Bearer YOUR_API_KEY
X-API-Key header	X-API-Key: YOUR_API_KEY
Query parameter	?apiKey=YOUR_API_KEY
Legacy query parameter	?token=YOUR_API_KEY

Parameters

Path Parameters

Parameter	Type	Required	Description
symbol	string	Yes	Stock ticker symbol (e.g., AAPL, META)

Query Parameters

Parameter	Type	Required	Description
startDate	string	No	Start date (YYYY-MM-DD)
endDate	string	No	End date (YYYY-MM-DD)
limit	integer	No	Maximum number of results to return

Request

Python SDK

from finbrain import FinBrainClient

fb = FinBrainClient(api_key="YOUR_API_KEY")

df = fb.senate_trades.ticker("NVDA",
                             date_from="2025-01-01",
                             date_to="2025-06-30",
                             as_dataframe=True)
print(df)

cURL

curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://api.finbrain.tech/v2/congress/senate/AAPL"

Python (requests)

import requests

headers = {"Authorization": "Bearer YOUR_API_KEY"}

response = requests.get(
    "https://api.finbrain.tech/v2/congress/senate/AAPL",
    headers=headers,
    params={"limit": 10}
)
data = response.json()

for t in data["data"]["trades"]:
    print(f"{t['date']} - {t['politician']}: {t['transactionType']} ({t['amount']})")

C++

#include <iostream>
#include <string>
#include <curl/curl.h>
#include <nlohmann/json.hpp>

using json = nlohmann::json;

size_t WriteCallback(void* contents, size_t size, size_t nmemb, std::string* userp) {
    userp->append((char*)contents, size * nmemb);
    return size * nmemb;
}

json get_senate_trades(const std::string& symbol, const std::string& api_key) {
    CURL* curl = curl_easy_init();
    std::string response;

    if (curl) {
        std::string url = "https://api.finbrain.tech/v2/congress/senate/" + symbol;

        struct curl_slist* headers = nullptr;
        std::string auth_header = "Authorization: Bearer " + api_key;
        headers = curl_slist_append(headers, auth_header.c_str());

        curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
        curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteCallback);
        curl_easy_setopt(curl, CURLOPT_WRITEDATA, &response);
        curl_easy_perform(curl);
        curl_slist_free_all(headers);
        curl_easy_cleanup(curl);
    }

    return json::parse(response);
}

int main() {
    auto result = get_senate_trades("AAPL", "YOUR_API_KEY");

    for (auto& t : result["data"]["trades"]) {
        std::cout << t["date"].get<std::string>() << " - "
                  << t["politician"].get<std::string>() << ": "
                  << t["transactionType"].get<std::string>()
                  << " (" << t["amount"].get<std::string>() << ")"
                  << std::endl;
    }

    return 0;
}

Rust

use reqwest::blocking::Client;
use serde::Deserialize;
use std::error::Error;

#[derive(Debug, Deserialize)]
struct SenateTrade {
    date: String,
    politician: String,
    #[serde(rename = "transactionType")]
    transaction_type: String,
    amount: String,
}

#[derive(Debug, Deserialize)]
struct SenateData {
    symbol: String,
    name: String,
    chamber: String,
    trades: Vec<SenateTrade>,
}

#[derive(Debug, Deserialize)]
struct SenateTradesResponse {
    success: bool,
    data: SenateData,
}

fn get_senate_trades(symbol: &str, api_key: &str)
    -> Result<SenateTradesResponse, Box<dyn Error>> {
    let url = format!(
        "https://api.finbrain.tech/v2/congress/senate/{}",
        symbol
    );

    let client = Client::new();
    let response: SenateTradesResponse = client
        .get(&url)
        .bearer_auth(api_key)
        .send()?
        .json()?;

    Ok(response)
}

fn main() -> Result<(), Box<dyn Error>> {
    let result = get_senate_trades("AAPL", "YOUR_API_KEY")?;

    for t in &result.data.trades {
        println!("{} - {}: {} ({})", t.date, t.politician, t.transaction_type, t.amount);
    }

    Ok(())
}

JavaScript

const response = await fetch(
  "https://api.finbrain.tech/v2/congress/senate/AAPL",
  { headers: { "Authorization": "Bearer YOUR_API_KEY" } }
);
const result = await response.json();

for (const t of result.data.trades) {
  console.log(`${t.date} - ${t.politician}: ${t.transactionType} (${t.amount})`);
}

Response

Success Response (200 OK)

{
  "success": true,
  "data": {
    "symbol": "AAPL",
    "name": "Apple Inc.",
    "chamber": "senate",
    "trades": [
      {
        "date": "2025-12-29",
        "politician": "Markwayne Mullin",
        "transactionType": "Purchase",
        "amount": "$100,001 - $250,000"
      }
    ]
  },
  "meta": {
    "timestamp": "2026-01-19T15:06:32.116Z"
  }
}

Response Fields

Field	Type	Description
success	boolean	Whether the request was successful
data.symbol	string	Stock ticker symbol
data.name	string	Company name
data.chamber	string	Congressional chamber (senate)
data.trades	array	Array of trade objects
meta.timestamp	string	Response timestamp (ISO 8601)

Trade Object Fields

Field	Type	Description
date	string	Transaction date (YYYY-MM-DD)
politician	string	Name of senator
transactionType	string	Transaction type (Purchase or Sale)
amount	string	Transaction amount (exact value or range)

Amount Ranges

Range	Min	Max
$1,001 - $15,000	$1,001	$15,000
$15,001 - $50,000	$15,001	$50,000
$50,001 - $100,000	$50,001	$100,000
$100,001 - $250,000	$100,001	$250,000
$250,001 - $500,000	$250,001	$500,000
$500,001 - $1,000,000	$500,001	$1,000,000
$1,000,001 - $5,000,000	$1,000,001	$5,000,000
Over $5,000,000	$5,000,001	N/A

Errors

Code	Error	Description
400	Bad Request	Invalid symbol
401	Unauthorized	Invalid or missing API key
403	Forbidden	Authenticated, but not authorized to access this resource
404	Not Found	Ticker not found
429	Too Many Requests	Rate limit exceeded — wait and retry
500	Internal Server Error	Server-side error

Related

• House Trades API - US House Representatives trading data
• Congressional Trading Dataset - Use cases and analysis examples
• Insider Transactions - SEC Form 4 data
• Ticker Predictions - Price predictions