Top 31 Health APIs For Developers - Public APIs

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Easily scrape Google and other search engines with SerpApi.

Health

Psychologie et Sérénité
French psychology articles metadata and validated psychological tests catalog.
Verified Supplement Data
Supplement dosing, form comparisons and drug-nutrient interactions with PubMed citations.

Guides

November 5, 2026
API Health Check Endpoints: What Real Public APIs ExposeWhat a health check endpoint should return, and what 15 public APIs exposed on 29 October 2026: 7 vendor routes answered 200, 0 of 4 at /health.
October 9, 2026
The State of Public APIs 2026: Data From 1,580 APIsWe measured all 1,580 public APIs in our directory. How many need a key, OAuth or nothing, which work from a browser, what is growing, and how many are down.
August 18, 2026
API Rate Limiting: Handle 429s, Then Set Your OwnHow API rate limiting works from both sides: reading limit headers, backing off correctly from a 429 against real public APIs, and setting limits on your own.