MCP TOOL · task_checkpoint_evidence

Task Checkpoint Evidence

Bind task ID, monotonic sequence and exact state hash in signed evidence.

0.003 USDC / call

TRANSPORT

POST /mcp

DIRECT ENDPOINT

/v1/paid/trust/task-checkpoint-evidence

PAYMENT

x402 · USDC · Base, Polygon, Arbitrum or Solana

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Copy-ready MCP call

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "task_checkpoint_evidence",
    "arguments": {"checkpoint":{"task_id":"task-01","sequence":2,"state_sha256":"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"}}
  }
}

What the agent receives

Signed checkpoint identity, sequence, state hash and envelope digest.

No API key or subscription. The first paid request returns HTTP 402 payment requirements; an x402 client signs and retries automatically.

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