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The Sealer Protocol - Attest Amendment
x402
The Sealer Protocol - Attest Amendment is a paid API for AI agents from www.thesealer.xyz, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-15).
Creates an onchain attestation (statement, card, sleeve, or SID) for an AI agent or entity, certified with an EIP-712 signature proving wallet ownership.
Price / call$0.25
Success—
StatusUnknown
How this service works
Onchain accountability for AI agents. Commit, prove, get certified.
Output
Returns a certified onchain attestation record for the agent, anchored to their wallet address on Base or Solana, in the requested format (statement, card, sleeve, or SID). The response confirms the commitment was published and may include a credential or attestation identifier.
Example use cases
Verify autonomous trading agent identity
“I need to certify my trading bot's wallet on Solana so other protocols know it's a legitimate agent. Create an onchain attestation — format it as a statement saying 'This agent executes trades only when explicitly authorized', sign it with my wallet, and anchor it to prove I own this address.”
Publish AI assistant accountability record
“My customer-service agent needs a tamper-proof identity on Base. Generate a certified SID that proves this wallet is mine, include a statement about what the agent is allowed to do, and give me the signed credential so I can share it with partners.”
Register delegated bot credentials permanently
“I'm delegating operations to an AI agent and need to create an onchain record showing I authorized it. Publish a certified card attestation on Base with my signature, my agent's wallet, and a statement that this agent acts under my explicit approval — make it verifiable forever.”
Technical details
Endpoint
POSThttps://www.thesealer.xyz/api/attest-amendmentWhen to prefer
Use this endpoint when an AI agent needs to publish a verifiable, onchain-anchored identity record or statement that proves wallet ownership and creates a permanent accountability trail. Prefer this over off-chain identity solutions when tamper-proof certification on Base or Solana is required.
Side effects
- Invalid or expired nonce (must be within 5 minutes of current Unix timestamp)
- Invalid EIP-712 signature — wallet ownership not proven
- Unsupported chain value (must be Base or Solana)
- Unsupported format value (must be statement, card, sleeve, or sid)
- Image URL not HTTPS — rejected
- Missing required fields (agentId, agentSig, agentNonce, format)
- Payment failure — 0.25 USDC not received via x402
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | — | |
| output | — |
Tags
x402
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