We're building the most comprehensive crypto data API we can, and it's still growing — there's always a coin, a field or an endpoint we haven't got to yet.
Please tell us about any data you think Crypto Data API should nail but doesn't. We're data nerds who love to geek out about market data, trading bots, AI agents, or how to make your trading stack work in general. Prefer a form? Send feedback.
— Sam and the CDA team
Join us on DiscordReal, runnable trading tools that plug into CryptoDataAPI — a perp backtester that refuses lookahead, a strategy wiki-brain your agent reads over MCP, and whatever you ship next. Every one is free and open source: clone it, read it, or bend it into your own thing.
Each one runs on live CryptoDataAPI endpoints — the endpoints each app actually calls are listed on its card, so you can see what a key needs to cover before you clone it.
Backtest perp strategies on real Hyperliquid data — honest fees, no lookahead.
An open-source Python engine for backtesting crypto perpetual-futures strategies on real Hyperliquid market data. It charges taker fees on both sides, accrues funding per bar and checks liquidations, so a result you like is a result you could have traded. Every run exports an interactive HTML replay that plays the backtest back bar-by-bar.
Endpoints it uses
/backtesting/klines · /backtesting/funding · /backtesting/snapshots
An LLM wiki-brain of ~4,900 linked nodes your agent reads over MCP.
An open-source, expert-curated knowledge base of interlinked markdown nodes — strategies, concepts, assets and market narratives — served to AI agents over a local MCP server. Point an agent at it and it can compose trading strategies from real primitives instead of inventing them, grounded on live CryptoDataAPI market data.
Endpoints it uses
/quant/market · /market-health · /coins/{id}
Three steps from zero to a working app. The free tier covers market-wide intelligence and 2,000+ coin profiles — enough to ship something real before you pay us anything.
Sign up and mint a key in a minute. Confirm your email and the free tier goes to 1,000 requests/day. Create a key →
REST over 190+ endpoints, or connect an agent directly with the MCP server. Start from the API docs or a library prompt.
Submit it below. If it's useful and it works, we'll feature it here and link it from the docs — no fee, no exclusivity, keep your own license.
Built something on CryptoDataAPI? Send it over. We review every submission by hand — we'll actually open the repo and run it — and email you either way. Open source isn't required, but a link we can inspect is.