{"version":"0.1.0","x402_protocol_versions_supported":[1,2],"x402_protocol_version_primary":2,"x402_v1_sunset_quarter":"2026-Q3","service":{"name":"Axiom Stack Themra","description":"Verifiable on-chain attestations for AI agents \u2014 equity + crypto data oracle anchored on Solana.","homepage":"https://axiomstack.dev","documentation":"https://api.axiomstack.dev/v1/openapi.json","developer_docs":"https://axiomstack.dev/developers/api"},"facilitator":{"type":"cdp","vendor":"Coinbase Developer Platform","verify_endpoint":"https://api.cdp.coinbase.com/platform/v2/x402/verify","settle_endpoint":"https://api.cdp.coinbase.com/platform/v2/x402/settle","supported_endpoint":"https://api.cdp.coinbase.com/platform/v2/x402/supported"},"supported_asset_classes":[2,6],"endpoints":[{"resource":"https://api.axiomstack.dev/v1/attestation/instant","asset_class":2,"mode":"instant","scheme":"exact","network":"solana-devnet","asset":"4zMMC9srt5Ri5X14GAgXhaHii3GnPAEERYPJgZJDncDU","price_atomic_units":"20000","decimals":6,"symbol":"USDC","payTo":"6pPcyDr16FJkZrh2s4ANfcSdUcBZKgD2KquXLUfuA3B3"},{"resource":"https://api.axiomstack.dev/v1/attestation/audit","asset_class":2,"mode":"audit","scheme":"exact","network":"solana-devnet","asset":"4zMMC9srt5Ri5X14GAgXhaHii3GnPAEERYPJgZJDncDU","price_atomic_units":"200000","decimals":6,"symbol":"USDC","payTo":"6pPcyDr16FJkZrh2s4ANfcSdUcBZKgD2KquXLUfuA3B3"},{"resource":"https://api.axiomstack.dev/v1/attestation/instant","asset_class":6,"mode":"instant","scheme":"exact","network":"solana-devnet","asset":"4zMMC9srt5Ri5X14GAgXhaHii3GnPAEERYPJgZJDncDU","price_atomic_units":"20000","decimals":6,"symbol":"USDC","payTo":"6pPcyDr16FJkZrh2s4ANfcSdUcBZKgD2KquXLUfuA3B3"}],"auth_modes":[{"type":"x402","version":2,"description":"Pay-per-call USDC via signed Solana transaction. Send PAYMENT-SIGNATURE (V2) or X-PAYMENT (V1) header."},{"type":"mpp-charge","method":"solana","intent":"charge","description":"Machine Payments Protocol charge intent on Solana per draft-ryan-httpauth-payment-01 + tempoxyz/mpp-specs draft-solana-charge-00. Send Authorization: Payment <b64url>; same pricing as x402 V2 (session-intent discount queued for V1.1).","session_intent_status":"deferred-to-V1.1"},{"type":"bearer","description":"Bearer API key on Authorization header. Issued at axiomstack.dev/dashboard/keys with monthly tier + USDC top-up."},{"type":"ap2-passthrough","version":"v0.2","description":"AP2 (Google Agent Payments Protocol) mandate envelope via A2A Embedded Flow per a2a-x402 v0.2 \u00a74. Server operates in passthrough mode in V1: detects X-A2A-Extensions header, records CartMandate SD-JWT for forensic trail, does NOT crypto-verify. Composes with any of x402 / mpp-charge / bearer.","verify_mode":"passthrough","structural_validation_status":"deferred-to-V1.1"}]}