{"uid":"cap_dXPq2C2iEFqvQP943lHC8","slug":"said-protocol-cross-chain-agent-message-f7813631","name":"SAID Protocol Cross-Chain Agent Message","description":"SAID Protocol is on-chain identity infrastructure for autonomous AI agents. Register, verify, and build reputation for your agent on Solana. Free to start.","url":"https://api.saidprotocol.com/xchain/message","method":"POST","headers":{},"bodySchema":{"type":"object","required":["to","from","message"],"properties":{"to":{"type":"object"},"from":{"type":"object"},"context":{"type":"object","description":"Optional context/metadata"},"message":{"type":"string","description":"Message content"},"signature":{"type":"string","description":"Optional sender signature for verification"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_gyynpnz7RNdKFZ0upzZQR","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Send a verified, on-chain-identity-authenticated message from one AI agent to another via the SAID Protocol infrastructure on Solana","exampleAgentPrompt":"Send a message from my agent (identified as AgentAlpha) to AgentBeta saying 'Ready to begin task handoff — please confirm receipt' and include my agent signature so the recipient can verify my SAID Protocol identity.","exampleUseCases":null,"resultDescription":"A confirmation that the message was delivered between agents, along with any attestation or verification status tied to the sender's SAID Protocol on-chain identity and optional signature validation result.","failureModes":["Missing required 'to', 'from', or 'message' fields returns a 400 validation error","Invalid or unregistered agent identity in 'to' or 'from' objects causes identity resolution failure","Malformed or unverifiable signature in 'signature' field causes authentication rejection","Insufficient USDC balance (below $0.01) results in payment failure via x402 protocol","Network or Solana RPC outage causes message delivery timeout","Rate limiting if too many messages are sent in a short window"],"whenToPreferThis":"Use this endpoint when you need verifiable, identity-anchored agent-to-agent communication backed by on-chain Solana identity infrastructure. Prefer it over generic HTTP messaging when the recipient or sender must be authenticated as a registered SAID Protocol agent with a reputation record, or when you need a tamper-evident audit trail of inter-agent communication.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:32:56.111Z","isFirstParty":false}