Personalised workout plans, exercise guides and nutrition advice from one AI endpoint.
Free APIs with a free plan, in one searchable catalogue
Every API here has a $0 tier you can start on today. Browse by category, compare endpoint counts and latency, then jump straight to the documentation and your API key.
11APIs listed
54+Endpoints
7Categories
$0Starting price
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Featured APIs
The most-subscribed services in the catalogue, each with a free plan.
Live crypto prices, RSI/MACD indicators and buy, sell and hold scores in one API.
Custom recipes from the ingredients you have, with diet filters and nutrition facts.
Platform-ready posts for 16 networks, in any language and any brand tone.
Generate verification codes, send themed emails and track delivery status.
Translate text, HTML, JSON, XML, YAML and Markdown into 100+ languages, markup intact.
How it works
Find the API
Search by keyword or filter by category. Every listing shows what the API does, how many endpoints it has and how fast it responds.
Read the details
Each page documents the endpoints, the key features and the price of every plan — including the free one — before you sign up for anything.
Get your key
The link takes you to the API listing, where a free subscription gives you a key and a playground to test the endpoints in the browser.
Why a free tier matters
Most integrations die in the evaluation phase. A card form before the first request means the idea never gets tested, and a service that only reveals its rate limits after payment is impossible to size.
Every API in this catalogue has a plan that costs nothing: enough requests to build a prototype, see the real response shape and decide whether the service belongs in your product. Paid tiers exist for when the traffic arrives, and they are listed here up front so nothing about the pricing is a surprise.
The catalogue is maintained by hand rather than scraped, so what you read on a listing page matches what the API actually returns.
Start with the free plan
No card, no trial clock. Pick an API, subscribe to the free tier and make your first call in a few minutes.
Browse all APIs