{"ok":true,"name":"otto_muse_autopay_sign","description":"Sign one exact allowlisted Base-USDC research payment under an existing bounded capability. Never sends it. Never retry an uncertain signing attempt with a new nonce.","inputSchema":{"type":"object","$schema":"http://json-schema.org/draft-07/schema#","required":["capability","operationId","tool","arguments","resource","amountAtomic","nonce","validAfter","validBefore"],"properties":{"tool":{"type":"string","description":"Exact allowlisted research MCP tool."},"nonce":{"type":"string","description":"Persisted 32-byte EIP-3009 nonce."},"resource":{"type":"string","description":"Exact canonical resource from the prepared payment challenge."},"arguments":{"type":"object","propertyNames":{"type":"string"},"additionalProperties":{}},"capability":{"type":"string","description":"Secret credential. Never log, echo or persist plaintext."},"validAfter":{"type":"string","description":"Must be \"0\"."},"operationId":{"type":"string","description":"Stable operation ID, 8–128 safe characters; never replace on retry."},"validBefore":{"type":"string","description":"Unix seconds as a decimal string; at most 300 seconds ahead."},"amountAtomic":{"type":"string","description":"Exact registry price, atomic USDC."}},"additionalProperties":{}},"serverUrl":"https://mcp.ottoai.services/","transport":"http","handshake":"ok","host":"mcp.ottoai.services","score":17,"grade":"F","auth":"x402","lastScannedAt":"2026-10-30T13:18:26.998Z","stale":false,"permalink":"https://agentboardai.app/mcp/mcp.ottoai.services/otto_muse_autopay_sign","page":"https://agentboardai.app/site/mcp.ottoai.services"}