{"name":"Mountain x402-sell — verify-a-signature-as-a-service","product":"GET /x402-sell/verify?pubkey=<hex>&sig=<hex>&payload=<string> — checks an Ed25519 signature with Mountain's fleet_passport.py verify()","price":"$0.02","network":"solana-mainnet","asset":{"mint":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","symbol":"USDC","decimals":6},"payTo":"2h3WSJhiT1xfq5BpnmHyn6sy9ULkajrTBLbYuTNpxZj6","protocol":"HTTP 402, real on-chain settlement, self-verified (no third-party facilitator) — call /verify once to get a 402 with a nonce + payment instructions, pay on-chain with the nonce as an SPL Memo, then call again with &tx=<signature>&nonce=<nonce>","not_wire_compatible_with":"@x402/fetch and other canonical x402 SDK clients (different envelope — see x402-sell/README.md in the source repo for why)","healthz":"/x402-sell/healthz","revenue_cap_usdc":5}