Declared by registration metadata: Checks x402 and MPP paid APIs before an agent pays and before a seller ships: a $0.001 preflight (go / caution / no_go, plus the cheapest option that will settle), batch and deep preflight, a $0.01 full diagnosis with a fix hint per check, and the fix code for $0.05. Paid per call over x402 (USDC on Base or Solana) or MPP (USDC on Base); the web check is free.
https://x402-doctor.fizzl.eu/.well-known/agent-registration.json
https://x402-doctor.fizzl.eu/.well-known/agent-registration.json
Registration metadata was decoded from the indexed on-chain URI.
https://eips.ethereum.org/EIPS/eip-8004#registration-v1
x402 Doctor
Checks x402 and MPP paid APIs before an agent pays and before a seller ships: a $0.001 preflight (go / caution / no_go, plus the cheapest option that will settle), batch and deep preflight, a $0.01 full diagnosis with a fix hint per check, and the fix code for $0.05. Paid per call over x402 (USDC on Base or Solana) or MPP (USDC on Base); the web check is free.
true
true
{"agentId":"CLgJCXbmpJeL4v8KeXb6UGLHcVG4AkNDXKBWQjm1dupj","agentRegistry":"solana:101:metaplex"}, {"agentId":97519,"agentRegistry":"eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"}
{
"type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
"name": "x402 Doctor",
"description": "Checks x402 and MPP paid APIs before an agent pays and before a seller ships: a $0.001 preflight (go / caution / no_go, plus the cheapest option that will settle), batch and deep preflight, a $0.01 full diagnosis with a fix hint per check, and the fix code for $0.05. Paid per call over x402 (USDC on Base or Solana) or MPP (USDC on Base); the web check is free.",
"image": "https://x402-doctor.fizzl.eu/og.jpg",
"services": [
{
"name": "web",
"endpoint": "https://x402-doctor.fizzl.eu/"
},
{
"name": "MCP",
"endpoint": "https://x402-doctor.fizzl.eu/mcp",
"version": "2025-06-18"
}
],
"active": true,
"x402Support": true,
"registrations": [
{
"agentId": "CLgJCXbmpJeL4v8KeXb6UGLHcVG4AkNDXKBWQjm1dupj",
"agentRegistry": "solana:101:metaplex"
},
{
"agentId": 97519,
"agentRegistry": "eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
}
],
"supportedTrust": []
}