Live crypto prices, RSI/MACD indicators and buy, sell and hold scores in one API.
How to get a free Finance & crypto API key
Four steps from a blank editor to a working call, across the 8 Finance & crypto APIs in this catalogue — all on a plan that costs nothing.
The steps
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Compare the options
This catalogue has 8 Finance & crypto APIs with a free plan. Sort them by endpoint count, latency or subscribers and shortlist two or three that cover what you need.
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Open the listing and subscribe to the free plan
Every listing links straight to the marketplace page. Crypto Price, Technical Indicators & Signals is the most subscribed one in this category, which makes it a safe first stop. The Basic plan costs $0 and asks for no card.
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Copy your API key
The key appears the moment the subscription is created. It goes in a request header — never in front-end code or a public repository.
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Make the first call and check the quota
The marketplace playground runs a real request in the browser before you write any code. Once it answers, watch the monthly quota: the free tier is generous but not unlimited, and every Finance & crypto listing publishes its own limit.
Which Finance & crypto API to start with
AI trade signals, combined technical analysis and a liquidation heatmap per symbol.
Renovation cost estimates generated from property photos.
Sales predictions from customer behaviour and market trends.
Real-time Binance Futures signals from AI trading bots, with alerts and market insight.
Fear & Greed, RSI, MACD and buy/hold/sell signals across 121+ exchanges.
Frequently asked questions
- How many free Finance & crypto APIs are listed here?
- This catalogue lists 8 Finance & crypto APIs, all with a plan that costs $0. The most used are Crypto Price, Technical Indicators & Signals, AI Crypto Signals & Liquidation Heatmap, AI home remodel & renovation cost calculator.
- Which free Finance & crypto API covers the most endpoints?
- Crypto Price, Technical Indicators & Signals covers the most ground with 8 endpoints.
- Which free Finance & crypto API answers fastest?
- Crypto Price, Technical Indicators & Signals answers fastest, at 516ms.
- What does the cheapest paid Finance & crypto plan cost?
- Past the free plan, Crypto Price, Technical Indicators & Signals is the cheapest at $9.99 a month.
- Are these Finance & crypto APIs really free?
- Yes. Every Finance & crypto API listed here has a plan that costs $0 a month and needs no card. Paid plans exist for higher volume and their prices are in the table above.