Payment Route Selector

Try before payment

Inspect a representative partial result, exact price and copy-ready upgrade instructions. No wallet, signature or payment required.

Copy-ready MCP call

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "payment_route_selector",
    "arguments": {"routes":[{"network":"eip155:8453","asset":"USDC","amount_atomic":"2000","estimated_fee_atomic":"0","estimated_latency_ms":100,"wallet_balance_atomic":"10000","available":true,"facilitator_supported":true,"gas_sufficient":true,"x402_version":2,"scheme":"exact"}],"policy":{"max_total_atomic":"3000","max_latency_ms":1000,"allowed_networks":["eip155:8453"],"preferred_networks":["eip155:8453"]}}
  }
}

What the agent receives

Selected route, complete deterministic ranking, per-route rejection reasons, hashes, limitations and an executable revalidate-then-sign instruction.

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