{"success":true,"apiKey":"cr_live_d20ac72d391f5209aed971c414714dd8e23c545fdf5a66cb3a3632c038d806dd","keyPrefix":"cr_live_d20a","credits":5,"currency":"USD","serviceCalls":"~80-100 calls across all 79 /x402/* services","expiresIn":"7 days","usage":{"header":"X-API-KEY","example":"curl -H \"X-API-KEY: cr_live_d20ac72d391f5209aed971c414714dd8e23c545fdf5a66cb3a3632c038d806dd\" https://coinrailz.com/x402/gas-price-oracle","alternativeHeader":"Authorization: Bearer <key>"},"upgradeAt":"/api/m2m/credits/purchase","note":"SAVE this key — it is returned once only and cannot be retrieved again."}