Anatome

Muscle group image generator API + free-exercise-db. Multi-color anatomical SVGs, MCP-compatible, 873 exercises pre-mapped. By NextSolutions.

Live example from the production API at api.anatome.dev. Marketing site: anatome.dev.

What is this?

Anatome turns muscle groups (and exercise names) into clean, colorable anatomical SVG diagrams over a simple HTTP API. It also bundles an exercise database (873 exercises from free-exercise-db, pre-mapped to 23 muscle slugs) and speaks the Model Context Protocol.

• 🎨 Multi-color layered muscle rendering (<img src>-friendly, ?output=raw)

• 💪 873 exercises searchable + resolvable to muscle layers + hosted demo GIFs

• 🤖 MCP server (7 tools) + OpenAPI 3.1 spec

• 🆓 Basic plan: 300 requests/month free on RapidAPI, then $0.001/request; unlimited localhost for dev

Related MCP server: musclesworked-mcp

Repository layout

The frontend lives at the repo root (Base44 requires base44/config.jsonc there and syncs from main). The Cloudflare API is an independent package under api/. See CONTRIBUTING.md for setup and PR rules.

Quickstart

Use the API

# Generate a muscle diagram (raw SVG)
curl "https://api.anatome.dev/generateImage?layers=DC2626:chest,abs&view=front&output=raw"

# Search exercises
curl "https://api.anatome.dev/searchExercises?q=bench&limit=5"

# Exercise demo GIF (bundled in api/public/gifs/)
curl "https://api.anatome.dev/exerciseGif?id=Bench_Press" -o bench.gif

Embed directly in HTML:

<img src="https://api.anatome.dev/generateImage?gender=male&view=dual&layers=DC2626:chest|F59E0B:triceps&output=raw" alt="chest and triceps" />

Run the frontend locally

npm install            # from the repo root
cp .env.local.example .env.local   # set VITE_BASE44_APP_ID + VITE_BASE44_APP_BASE_URL
npm run dev

Set VITE_BASE44_APP_BASE_URL=https://anatome.dev when developing against production.

Run the API locally

cd api
pnpm install
pnpm run worker:dev

Endpoints

generateImage · workoutImage · searchExercises · getExercise · resolveExercise · exerciseGif · listMuscles · muscleInfo · listEquipment · mcp · openapi · selfTest

Full schema: GET https://api.anatome.dev/openapi. MCP: POST https://api.anatome.dev/mcp.

Legacy Base44 paths remain at https://anatome.dev/functions/<name> during migration.

License & attribution

Anatome is licensed under Apache-2.0. It builds on third-party data — see NOTICE: anatomical paths from react-native-body-highlighter (MIT) and exercise metadata from free-exercise-db (Unlicense). That dedication covers the metadata only — the dataset's photography is of unverified origin and is not cleared for redistribution (#21).

NextSolutions also makes airon.coach — an AI personal trainer that uses Anatome under the hood.