Finnhub - Free APIs for realtime stock, forex, and cryptocurrency. Company fundamentals, Economic data, and Alternative data.

The Finnhub API is an ... Bloomberg, and Tradeweb, Finnhub provides real-time stock prices, global fundamentals, alternative financial data, and economic indicators — all through a single, developer-friendly REST API and WebSocket feed....

UI for finnhub.io live trades websocket API, written in Rust, compiled to WASM - lloydmeta/finnhub-ws-rs

finnhub.WebSocket.OnTradeReceived += (sender, trade) => { Console.WriteLine($"{trade.Symbol}: ${trade.Price} x {trade.Volume}"); }; await finnhub.WebSocket.ConnectAsync(); await finnhub.WebSocket.SubscribeAsync("AAPL", "MSFT", "GOOGL"); Ready-to-run sample applications are available in the samples/ directory: ... # Set your API key export FINNHUB_API_KEY=your-api-key # Linux/macOS set FINNHUB_API_KEY=your-api-key # Windows # Run REST sample dotnet run --project samples/FinnhubSdk.Samples.Rest # Run WebSocket sample dotnet run --project samples/FinnhubSdk.Samples.WebSocket

October 13, 2025 - ... GitHub - Finnhub-Stock-API/finnhub-python: Finnhub Python API Client. Finnhub API provides institutional-grade financial data to investors, fintech startups and investment firms.

February 6, 2026 - A comprehensive Rust client for the Finnhub.io financial data API with 96% endpoint coverage, flexible rate limiting, and WebSocket support

Finnhub API provides Real-Time RESTful APIs and Websocket for Stocks, Currencies, and Crypto

April 16, 2026 - The Finnhub API provides Real-Time RESTful APIs and Websocket for Stocks, Currencies, and Crypto.

Does Finnhub have an official API? Yes — Finnhub provides an official public REST and WebSocket API covering quotes, fundamentals, news and sentiment.

February 22, 2026 - Yes. Finnhub offers a WebSocket feed for real-time trade and quote data on the free plan (limited to 50 symbols) and unlimited symbols on paid plans. The WebSocket connection is authenticated with your API token.

Rate limiting implementation for the Finnhub API. ... WebSocket support for real-time data streaming.

October 28, 2021 - --- request header --- GET /?token=xxxxxxxxxxxxx HTTP/1.1 Upgrade: websocket Host: ws.finnhub.io Origin: http://ws.finnhub.io Sec-WebSocket-Key: xxxxxxxxxxxx Sec-WebSocket-Version: 13 Connection: Upgrade

March 14, 2023 - import finnhub import os import time import datetime from zoneinfo import ZoneInfo import pandas as pd import numpy as np import seaborn as sns import matplotlib.pyplot as plt # Set up client # Note the FINNHUB_KEY environment variable stores my API key finnhub_client = finnhub.Client(api_key=os.environ['FINNHUB_KEY'])

December 30, 2022 - The easiest application to build is a simple Python application since finnhub includes the basics in their documentation. We are going to use their free WEBSOCKET interface to Trades so we can get real-time events as they happen.

The project is a streaming data pipeline based on Finnhub.io API/websocket real-time trading data created for a sake of my master's thesis related to stream processing.

August 12, 2020 - const socket = new WebSocket('wss://ws.finnhub.io?token=mytoken'); // Connection opened -> Subscribe socket.addEventListener('open', function (event) { socket.send(JSON.stringify({'type':'subscribe', 'symbol': 'AAPL'})) socket.send(JSON.stringify({'type':'subscribe', 'symbol': 'BINANCE:BTCUSDT'})) socket.send(JSON.stringify({'type':'subscribe', 'symbol': 'IC MARKETS:1'})) }); // Listen for messages socket.addEventListener('message', function (event) { console.log('Message from server ', event.data); });

from fhub import Session hub = Session("your_finnhub_api_key_here") # Download prices time serie of Tesla. tsla = hub.candle('TSLA') # Download prices for several tickers from a date. data = hub.candle(['AMZN', 'NFLX', 'DIS'], start="2018-01-01") # Download prices and bollinger bands indicator for several tickers. data = hub.indicator(['AAPL', 'MSFT'], start='2019-01-01', indicator='bbands', indicator_fields={'timeperiod': 10}) Real-time subscription via Finnhub's websocket is easy using fhub, even using custom functions for each tick received.

ws = websocket.WebSocketApp("wss://ws.finnhub.io?token=<my-finnhub-token>", on_message = on_message, on_error = on_error, on_close = on_close) ws.on_open = on_open ·

April 30, 2026 - In addition, there’s a real-time newsfeed delivered over websockets. The free tier is quite generous and offers more than enough for doing proof of concept work and testing ideas. While you only get a year’s worth of historical data per API call on the free tier (more if you specify a lower resolution, like monthly), you can make up to 50 calls per minute. In this post, we’ll explore the finnhub.io free tier via its REST API.

Finnhub - Free APIs for realtime stock, forex, and cryptocurrency. Company fundamentals, Economic data, and Alternative data.