{"schema_version": "4.0", "agent_name": "AOTrust Notary", "description": "Cryptographic proof-of-existence notarization for AI agents. Free tier + paid $0.01 USDC via x402 (Base or Solana). Anchored daily to NEAR Mainnet.", "version": "2.3.7", "endpoints": {"mcp": "https://api.aotrust.link/mcp", "rest_api": "https://api.aotrust.link/v1", "verify_ui": "https://verify.aotrust.link", "docs": "https://docs.aotrust.link"}, "config": {"pdr_price_usdc": "0.01", "network": "mainnet", "currency": "USDC", "mcp_compatible": true, "pdr_internal_size_bytes": 193, "pdr_external_size_bytes": 239, "signing_algorithm": "Ed25519"}, "payment": {"protocol": "x402", "accepted": [{"rail": "X402_BASE", "network": "eip155:8453", "asset": "USDC", "method": "EIP-3009 transferWithAuthorization"}, {"rail": "X402_SOLANA", "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp", "asset": "USDC-SPL", "method": "transferChecked via facilitator (feePayer PayAI)"}], "http_note": "HTTP /notarize accepts Base only; Solana payments via MCP tool notary_notarize_paid"}, "issuer_id": "notary-node.near", "registry": "link.aotrust/notary", "mcp_registry_url": "https://registry.modelcontextprotocol.io/v0/servers?search=link.aotrust", "contact": "legal@aotrust.link", "protocols": ["x402", "MCP", "NEP-413"], "capabilities_list": ["notary_quote", "notary_free", "notary_notarize", "notary_verify", "notary_notarize_paid"]}