Twelve Data

API

Real-time and historical stock market data API

Overview

Twelve Data API delivers real-time and historical stock market data including quotes, OHLCV series, technical indicators, and more. Endpoints support intraday/daily historical data for stocks, ETFs, cryptocurrencies, and forex pairs. Responses are JSON-formatted, ideal for trading dashboards, algorithmic trading systems, financial analysis tools, or fintech app integrations. It caters to retail and institutional users with precise data points and flexible timeframes.

Example Integration (JavaScript)

script.js JS


fetch('https://twelvedata.com/')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful API
JSON Responses
Real-time & Historical Data
Technical Indicators
Multi-Asset Coverage

Frequently Asked Questions

? Is Twelve Data free to use?

Yes, it offers a free tier with limited requests; paid plans unlock higher usage and advanced features.

? Does it require an API Key?

Yes, an API key is mandatory for all requests, obtainable via sign-up on their website.

? What is the response format?

All responses are in JSON format, lightweight and easy to parse across programming languages.

Top Alternatives

Alpha Vantage Compare

Tool Info

Pricing Freemium

Category Finance

Platform Public API

Pros

⊕ Accurate Market Data
⊕ Wide Asset Range
⊕ Easy Integration
⊕ Flexible Timeframes

Cons

⊖ Free Tier Rate Limits
⊖ Premium Features Locked
⊖ No Free SLA