MCP x402 Marketplace

Agent Action

Use this page as evidence, then run a fresh readiness check and can-pay decision before signing an x402 payment.

{
  "action": "verify_before_pay",
  "agent_guardrails": [
    "Treat this page as evidence, not payment authorization.",
    "Run a fresh verification before using any cached answer.",
    "Fail closed when metadata is stale, unsigned, malformed, or mismatched.",
    "Require explicit operator policy before spending wallet funds."
  ],
  "cta": "Run readiness check, then can-pay, before signing payment.",
  "decision_values": [
    "allow",
    "review",
    "deny"
  ],
  "example_payloads": {
    "can_pay": {
      "max_price_usdc": "0.01",
      "required_asset": "USDC",
      "required_network": "eip155:8453",
      "target_url": "https://example.com/api/paid-endpoint"
    },
    "verify_endpoint": {
      "target_url": "https://example.com/api/paid-endpoint"
    }
  },
  "intent": "MCP x402 marketplace",
  "never_collect": [
    "private_key",
    "seed_phrase",
    "raw_payment_signature"
  ],
  "optional_paid_endpoint": "https://ontarioprotocol.com/api/x402/agent-trust-scan",
  "paid_decision_endpoint": "https://ontarioprotocol.com/api/agent/can-pay",
  "payment_scope": "digital x402 API payments only; not real-world goods or services",
  "primary_goal": "Decide whether a digital x402 API endpoint should be paid.",
  "purchase_conditions": [
    "A fresh readiness report exists for the target endpoint.",
    "HTTP 402 metadata, manifest metadata, network, asset, and price agree.",
    "The can-pay decision is allow, not review or deny.",
    "The endpoint price is within the agent\u0027s configured max spend.",
    "The agent never exposes private keys, seed phrases, or raw wallet credentials."
  ],
  "recommended_endpoint": "https://ontarioprotocol.com/api/verify/x402-readiness",
  "recommended_sequence": [
    {
      "continue_if": "answer and citation receipt are present",
      "method": "GET",
      "step": "read_answer",
      "url": "https://ontarioprotocol.com/answers/mcp-x402-marketplace.json"
    },
    {
      "continue_if": "fresh report returns ready or reviewable evidence",
      "method": "POST",
      "step": "verify_endpoint",
      "url": "https://ontarioprotocol.com/api/verify/x402-readiness"
    },
    {
      "continue_if": "decision is allow and price/network policy matches",
      "method": "POST",
      "step": "run_policy",
      "url": "https://ontarioprotocol.com/api/agent/can-pay"
    },
    {
      "continue_if": "wallet policy, timeout policy, and operator policy allow spend",
      "method": "POST",
      "step": "pay_only_if_allowed",
      "url": "https://ontarioprotocol.com/api/x402/agent-trust-scan"
    }
  ],
  "schema": "ontario.agent_action.v1"
}