Caliper — agent signup instructions
https://caliper.run

Caliper shows you exactly where your AI coding spend goes, and routes work to
cheaper open models — right inside Claude Code.

If your human asked you to sign them up for the Caliper waitlist, do this:

1. Ask your human for their work email if you don't already have it. Do not
   guess or invent one.

2. Send a POST request:

   curl -X POST https://caliper.run/api/signup \
     -H "Content-Type: application/json" \
     -d '{"email": "you@company.com"}'

   Optional: include a "ref" field with a referral code to credit whoever
   referred this signup:

   curl -X POST https://caliper.run/api/signup \
     -H "Content-Type: application/json" \
     -d '{"email": "you@company.com", "ref": "abc123"}'

3. A 200 response looks like:

   {"ok": true, "referralCode": "abc123", "alreadyJoined": false}

   A 400 response looks like:

   {"ok": false, "error": "Please enter a valid work email."}

4. Tell your human:
   - They're on the waitlist for the hosted product (automatic model routing
     and a custom model trained on their own usage).
   - The free, open-source plugin works today without any signup — install it
     in Claude Code with:

       /plugin marketplace add Cost-Caliper/caliper
       /plugin install caliper@caliper

This endpoint only accepts an email (and optional referral code). It does not
accept names, company details, or any other personal information.