Index onlineMerchant portal
Api Endpoint

x402 Doctor

Are these x402 endpoints safe to pay? Up to 10 endpoints in one call (?url=a&url=b): per endpoint go / caution / no_go, the recommended payment option and why, plus totals. For marketplaces and agents that weigh several services. Never pays the endpoints. Bulk: 1000 credits for $0.80 via /api/v1/credits.

Open interactive test console

Offering

Provider
x402-doctor.fizzl.eu
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Blockchain And Crypto
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://x402-doctor.fizzl.eu/api/v1/preflight/batch
MIME type
application/json
First seen
2026-10-16T01:50:38.788Z
Last seen
Tags
X402, Payments, Safety, pre-payment, Batch

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.005 USDC
Atomic price: 5000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Payment option 3
5000 atomic units
Atomic price: 5000 · Network: algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k · Asset: 31566704 · Scheme: exact
Payment option 4
50000 atomic units
Atomic price: 50000 · Network: stellar:pubnet · Asset: CCW67TSZV3SSS2HXMBQ5JFGCKJNXKZM7UQUWUZPUTHXSTZLEO7SJMI75 · Scheme: exact
Payment option 5
5000 atomic units
Atomic price: 5000 · Network: eip155:196 · Asset: 0x779ded0c9e1022225f8e0630b35a9b54be713736 · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "payTo": "0x6B0F4651eD42893ab58139938175E4a69f175F25"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "5000",
    "payTo": "ATWJ82T8nRdQwZnaysB68N5EpaSvLRsQP4h6eWmaJBH9"
  },
  {
    "scheme": "exact",
    "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
    "asset": "31566704",
    "amount": "5000",
    "payTo": "LOYVFSQ6ZTS2YWUW4GQ5L6VPP2TPIOXWYDACK53CPOHQQHLDMEMKJDXAX4"
  },
  {
    "scheme": "exact",
    "network": "stellar:pubnet",
    "asset": "CCW67TSZV3SSS2HXMBQ5JFGCKJNXKZM7UQUWUZPUTHXSTZLEO7SJMI75",
    "amount": "50000",
    "payTo": "GCH2J5UAY24YNKA65MPAATVKWRCZZRZNF3JZKYYS5MIBZPG6U7WJ6CDQ"
  },
  {
    "scheme": "exact",
    "network": "eip155:196",
    "asset": "0x779ded0c9e1022225f8e0630b35a9b54be713736",
    "amount": "5000",
    "payTo": "0x6B0F4651eD42893ab58139938175E4a69f175F25"
  }
]

Observed health

Status
Healthy
Latest latency
149 ms
Average latency
395 ms
HTTP status
402
Last checked
Reachability
100% over 7 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "url": {
          "type": "array",
          "items": {
            "type": "string"
          },
          "maxItems": 10,
          "description": "The x402 endpoints to check, one url parameter each (?url=a&url=b), at most 10."
        },
        "method": {
          "type": "string",
          "enum": [
            "GET",
            "POST"
          ],
          "description": "HTTP method you will call them with. Default: try GET, then POST."
        },
        "max_usd": {
          "type": "string",
          "description": "Your budget per call in USD; above it the verdict is no_go."
        },
        "network": {
          "type": "string",
          "description": "CAIP-2 network you want to pay on."
        },
        "client": {
          "type": "string",
          "enum": [
            "gateway"
          ],
          "description": "Set to gateway when your agent pays with Circle's Gateway client from a Gateway balance."
        }
      },
      "required": [
        "url"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET"
          ],
          "type": "string"
        },
        "queryParams": {
          "properties": {
            "max_usd": {
              "description": "Your budget per call in USD; above it the verdict is no_go.",
              "type": "string"
            },
            "method": {
              "description": "HTTP method you will call them with. Default: try GET, then POST.",
              "enum": [
                "GET",
                "POST"
              ],
              "type": "string"
            },
            "network": {
              "description": "CAIP-2 network you want to pay on.",
              "type": "string"
            },
            "url": {
              "description": "The x402 endpoints to check, one url parameter each (?url=a&url=b), at most 10.",
              "items": {
                "type": "string"
              },
              "maxItems": 10,
              "type": "array"
            }
          },
          "required": [
            "url"
          ],
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "properties": {
            "checked_at": {
              "type": "string"
            },
            "count": {
              "type": "integer"
            },
            "counts": {
              "properties": {
                "caution": {
                  "type": "integer"
                },
                "go": {
                  "type": "integer"
                },
                "no_go": {
                  "type": "integer"
                },
                "unknown": {
                  "type": "integer"
                }
              },
              "type": "object"
            },
            "results": {
              "items": {
                "properties": {
                  "error": {
                    "type": "string"
                  },
                  "options": {
                    "type": "array"
                  },
                  "reasons": {
                    "type": "array"
                  },
                  "recommended_option": {
                    "type": [
                      "integer",
                      "null"
                    ]
                  },
                  "safe_to_pay": {
                    "type": "boolean"
                  },
                  "summary": {
                    "type": "string"
                  },
                  "url": {
                    "type": "string"
                  },
                  "verdict": {
                    "enum": [
                      "go",
                      "caution",
                      "no_go",
                      "unknown"
                    ],
                    "type": "string"
                  }
                },
                "required": [
                  "url",
                  "verdict",
                  "safe_to_pay",
                  "summary"
                ],
                "type": "object"
              },
              "type": "array"
            }
          },
          "required": [
            "count",
            "counts",
            "results"
          ],
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}