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The Fitness API Atlas: a printable poster

The Fitness API Atlas is a one-page A2 poster, as SVG and PDF, of the 24 products in this site's API directory in 7 categories, each labeled with how it bills developers and whether an approval stands before production, plus the 15 entries of the API graveyard and the 15 confirmed changes of the twelve months before its data date. A script draws it from the site's open datasets, so nothing on it is hand-placed, and it ranks nothing. Data as of November 5, 2026.

Download PDF (A2)Download SVGThe interactive market map
The Fitness API Atlas poster, data as of 2026-11-05

The directory on the poster, as text

Wearable APIs (direct)

Health-data aggregators

Platform health stores

Nutrition & food data

Exercise content

AI motion / coaching SDKs

The poster’s other two sections are the API graveyard and the changes tracker, each entry sourced there.

How the poster is made

  • Drawn by scripts/build-atlas.mjs from public/datasets/fitness-apis-2026.json (the directory), public/datasets/fitness-api-changes-2026.json (the changes tracker) and src/data/graveyard.ts; the PDF is the same SVG printed by a headless Chromium.
  • The date on the poster is the newest date its inputs were checked, not the day it was drawn, so an unchanged dataset redraws an identical file.
  • Billing labels are the directory's: Free, Free tier, Usage-based or Contact sales, describing what the developer pays, not quality. A diamond marks a product whose directory entry names a review, approval or declaration to clear before you can ship.
  • KinesteX funds this site. Its entry is drawn the same way as every other, and the poster ranks nothing.

Free to print and share under CC BY 4.0: credit AIFitnessAPI and link https://aifitnessapi.com/atlas.