Simple, free real-time market-data API for prices and market caps
Last updated: July 2026
CoinCap is a lightweight, developer-friendly market-data API providing real-time prices, market caps, volumes, and basic historical data across a broad set of cryptocurrencies, long popular for being simple and free to get started with. Its appeal has always been minimal friction: a clean, well-documented REST and WebSocket API that returns straightforward price and market data without complex authentication or heavy paywalls, making it a common choice for hobby projects, tickers, bots, and quick prototypes where you just need reliable prices. It aggregates data across exchanges to produce weighted average prices and offers real-time streaming for live-updating displays. CoinCap covers the essentials — asset prices, market data, and exchange information — rather than trying to be an all-encompassing data platform. The considerations: its scope is deliberately basic, so it lacks the deep historical granularity, on-chain data, derivatives metrics, and institutional features of larger providers; API terms, rate limits, and access models have evolved over time (as with many free APIs), so production users should check current terms; and it's not aimed at demanding institutional use. But for developers who want a simple, accessible, real-time price and market-data API to build a ticker, bot, or prototype quickly — without wrestling with a heavyweight platform — CoinCap remains a practical and widely-used option in the market-data ecosystem.
CoinCap offers a free plan. Paid plans start at $49/month.
CoinCap
Free
CoinCap
$49/mo
$490/yr billed annually
| Feature | CoinCap |
|---|---|
| Price Data | ✓ |
| Historical O H L C V | ✓ |
| Exchange Data | ✓ |
| Defi Tvl | ✗ |
| Dex On Chain Data | ✗ |
| Nft Data | ✗ |
| Derivatives Data | ✗ |
| Exchange Trust Score | ✗ |
| Free Access | ✓ |
| Api Stability | ✓ |
Yes, CoinCap has a free plan. Paid plans start from $49/month.
CoinCap is used for simple, free real-time market-data api for prices and market caps. It's primarily used by Web3 teams in the Crypto Market Data category.
See our full alternatives comparison at https://chainpick.io/alternatives/coincap.
CoinCap has a rating of 3.9/5 based on 98 reviews. Key strength: Simple, minimal-friction real-time price API. Main limitation: Deliberately basic — no deep history or on-chain data.
Get started for free — no credit card required.