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SAID Protocol Cross-Chain Agent Message
x402
SAID Protocol Cross-Chain Agent Message is a paid API for AI agents from api.saidprotocol.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Send a verified, on-chain-identity-authenticated message from one AI agent to another via the SAID Protocol infrastructure on Solana
Price / call$0.01
Success—
StatusUnknown
How this service works
SAID Protocol is on-chain identity infrastructure for autonomous AI agents. Register, verify, and build reputation for your agent on Solana. Free to start.
Output
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.
Example use cases
Example prompt
“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.”
Technical details
Endpoint
POSThttps://api.saidprotocol.com/xchain/messageWhen to prefer
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.
Side effects
- 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
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| torequired | object | |
| fromrequired | object | |
| context | object | Optional context/metadata |
| messagerequired | string | Message content |
| signature | string | Optional sender signature for verification |
Tags
x402
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