Oura MCP Server

A small remote MCP server that lets Claude and ChatGPT pull your Oura Ring data (sleep, readiness, activity, heart rate, SpO2, stress) live, on demand. Your ring already syncs to Oura's cloud through the phone app — this reads from that cloud API, so there's nothing to install on your phone.

Tools exposed

All accept start_date / end_date as today, yesterday, or YYYY-MM-DD.

Related MCP server: Oura MCP Server

Setup (about 15 minutes, once)

1. Get Oura OAuth credentials

Oura phased out Personal Access Tokens (Dec 2025), so use OAuth2 — it also lets the server refresh itself so daily pulls keep working unattended.

1. Go to https://cloud.ouraring.com/oauth/applications and create an application.

2. Set the Redirect URI to exactly http://localhost:8080/callback.

3. Copy the Client ID and Client Secret.

2. Get your refresh token (one time)

On your computer (Node 20+):

npm install
OURA_CLIENT_ID=xxx OURA_CLIENT_SECRET=yyy node get-token.mjs

Approve in the browser window that opens. The terminal prints OURA_REFRESH_TOKEN=.... Save it.

Just testing? Skip steps 1–2 and set OURA_USE_SANDBOX=true to use Oura's sample data.

3. Pick an MCP secret

Generate a long random string (e.g. openssl rand -hex 24). This protects your endpoint and becomes part of the URL.

4. Deploy (always-on cloud)

Push this folder to a GitHub repo, then use any host. Set these environment variables on the host: MCP_SECRET, OURA_CLIENT_ID, OURA_CLIENT_SECRET, OURA_REFRESH_TOKEN.

• Railway (no cold starts): New Project → Deploy from repo → add the env vars. Done.

• Render: New → Web Service → connect repo (a render.yaml is included) → add env vars.

• Docker (any host / Fly.io): a Dockerfile is included.

Your connector URL is:

https://<your-deployed-host>/mcp/<MCP_SECRET>

Confirm it's live: visiting https://<your-deployed-host>/health should return {"status":"healthy"}.

Connect the AI apps

Claude (Pro, Max, Team, or Enterprise)

Settings → Connectors → Add custom connector → paste the URL above → save. Start a chat and ask: "What was my Oura readiness this week?"

ChatGPT (Plus, Pro, Business, Enterprise, or Edu)

Settings → Connectors / Apps → enable Developer mode → Add custom connector → paste the URL → save. (ChatGPT only supports remote HTTPS MCP servers, which this is.)

Both clients connect from the cloud, so the server must be publicly reachable over HTTPS (any of the hosts above provide that automatically).

Daily use — example prompts

• "Give me my Oura daily summary for today."

• "How has my sleep score trended over the last 14 days?"

• "Compare my readiness on days I hit my activity target vs days I didn't."

• "What was my average resting heart rate and HRV this week?"

Local run (for testing)

npm install && npm run build
MCP_SECRET=test OURA_USE_SANDBOX=true OURA_CLIENT_ID=x OURA_CLIENT_SECRET=x OURA_REFRESH_TOKEN=x npm start
# POST http://localhost:3000/mcp/test

Notes

• Read-only: the server never writes to your Oura account.

• If pulls start failing with a 401, your refresh token was likely revoked — re-run get-token.mjs and update OURA_REFRESH_TOKEN.

• Keep MCP_SECRET private; anyone with the full URL can read your data.