TechnicallyFit is opening up to developers. Gym software, coaching tools and wearable companies will be able to build on the same platform our own apps and Claude use, with a public API, reference documentation and official SDKs for TypeScript and Python.
Work on a person's behalf, with their permission
An app asks a person to connect their TechnicallyFit account. The person signs in on TechnicallyFit's own page and chooses, area by area, what the app can see and change. From then on the app can read their program, log their sets and keep their profile current. Anything that changes their training arrives as a proposal they confirm, so nothing happens behind their back, and they can disconnect any app from Settings at any time.
Reference data for your product
Developers can look up the movement catalog, alternatives for any exercise, sports, anatomy and training concepts, all with a developer key, to power search, substitutions and education inside their own apps.
Docs and SDKs
Every endpoint is documented at docs.technicallyfit.com with examples you can run, guides for signing in, limits and errors, and SDKs that are generated from the same specification as the API, so they stay current.
For businesses
We're also designing access to the engine for businesses that want to generate programs for their own users. Details follow as that work is scoped.