Personalised workout plans, exercise guides and nutrition advice from one AI endpoint.
How to get a free Health & fitness API key
Four steps from a blank editor to a working call, across the 9 Health & fitness APIs in this catalogue — all on a plan that costs nothing.
The steps
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Compare the options
This catalogue has 9 Health & fitness 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. AI Workout Planner 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 Health & fitness listing publishes its own limit.
Which Health & fitness API to start with
Blood test reports analysed for abnormalities, with AI-written health assessments.
Real-time medical conversations with symptom analysis and recommendations.
Symptom analysis with differential diagnoses and health recommendations.
Symptom analysis for dogs, cats, rabbits, hamsters, parrots and birds.
X-ray analysis that returns a fast, structured radiology report.
Frequently asked questions
- How many free Health & fitness APIs are listed here?
- This catalogue lists 9 Health & fitness APIs, all with a plan that costs $0. The most used are AI Workout Planner, AI blood test analysis — instant health reports, AI doctor API — medical chatbot & healthcare assistant.
- Which free Health & fitness API covers the most endpoints?
- AI Workout Planner covers the most ground with 5 endpoints.
- Which free Health & fitness API answers fastest?
- AI Workout Planner answers fastest, at 2124ms.
- What does the cheapest paid Health & fitness plan cost?
- Past the free plan, AI Workout Planner is the cheapest at $9.99 a month.
- Are these Health & fitness APIs really free?
- Yes. Every Health & fitness 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.