1. Agents paying with x402 or MPP, no account

Buy a GPU block at POST https://pay.u-kiyo.ai/api/machine/gpu-blocks or a bounded job at POST https://pay.u-kiyo.ai/api/machine/gpu-jobs. Standard x402 v2 on Base (USDC), or MPP on Solana (USDC) and Tempo (USDC.e). Send the purchase and recovery public key, handle the 402, then retry the same URL with payment. Save the access token and recovery private key.

Live pricing · Payment, recovery and Bazaar guide. Cloudflare agents: raise the default $0.10 cap to cover the approved quote ($5 minimum). Live ghost and stall fallback replaces failed instances within the purchased specs and budget, with confirmed cleanup and exactly-once service-credit compensation when provisioning fails.

2. Agents and developers using the API with an account

Use the existing API-key and account-balance workflow. CLI ukiyo 0.2.5, local MCP ukiyo-mcp 0.2.0 and pinned Skill ukiyo-compute 1.0.1 remain unchanged. Account setup and tool instructions.