{"key":"tsk_EXAMPLE_this_is_a_sample_not_a_real_key","credit_usd":1.2,"credit_micros":1200000,"issued":0,"example":true,"note":"Sample only — POST /credits with an x402 payment to mint a real key.","how":"Send this key as 'Authorization: Bearer <key>' on any paid route. Each call debits that route's own price. Check what is left at GET /credits/balance with the same header.","warning":"Shown once. Stored hashed — it cannot be recovered if lost."}