Api Endpoint

verifier.quantumshieldlabs.dev

Return an advisory ALLOW, DENY, or ESCALATE decision by comparing a bounded action request with authority, constraints, and evidence supplied by the caller. The service does not execute or legally authorize the action, access a wallet, validate identity, or independently observe facts.

Open interactive test console

Offering

Provider
verifier.quantumshieldlabs.dev
Method
POST
Offering type
Api Endpoint
Transport type
http
Category
Legal And Compliance
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://verifier.quantumshieldlabs.dev/x402/preflight
MIME type
Not provided
First seen
2026-10-16T01:50:53.972Z
Last seen
Tags
None supplied

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
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "payTo": "0x550205ECa42aAE871CFED6BC943fB2cF59F1d057"
  }
]

Observed health

Status
Reachable
Latest latency
46 ms
Average latency
161 ms
HTTP status
405
Last checked
Reachability
100% over 14 checks

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

Input schema

{
  "additionalProperties": false,
  "properties": {
    "body": {
      "additionalProperties": false,
      "properties": {
        "action_type": {
          "maxLength": 4096,
          "type": "string"
        },
        "authority_scope": {
          "additionalProperties": false,
          "properties": {
            "allowed_action_types": {
              "items": {
                "maxLength": 4096,
                "type": "string"
              },
              "maxItems": 100,
              "type": "array"
            },
            "denied_action_types": {
              "items": {
                "maxLength": 4096,
                "type": "string"
              },
              "maxItems": 100,
              "type": "array"
            },
            "human_approval_action_types": {
              "items": {
                "maxLength": 4096,
                "type": "string"
              },
              "maxItems": 100,
              "type": "array"
            }
          },
          "type": "object"
        },
        "constraints": {
          "additionalProperties": false,
          "properties": {
            "max_spend_usd": {
              "type": [
                "string",
                "number"
              ]
            },
            "prohibited_destinations": {
              "items": {
                "maxLength": 4096,
                "type": "string"
              },
              "maxItems": 100,
              "type": "array"
            },
            "required_evidence": {
              "items": {
                "maxLength": 4096,
                "type": "string"
              },
              "maxItems": 100,
              "type": "array"
            }
          },
          "type": "object"
        },
        "evidence_items": {
          "items": {
            "additionalProperties": false,
            "properties": {
              "description": {
                "maxLength": 4096,
                "type": "string"
              },
              "name": {
                "maxLength": 4096,
                "type": "string"
              },
              "result": {
                "type": [
                  "boolean",
                  "null"
                ]
              },
              "source": {
                "maxLength": 4096,
                "type": "string"
              }
            },
            "required": [
              "name"
            ],
            "type": "object"
          },
          "maxItems": 50,
          "type": "array"
        },
        "operation_id": {
          "maxLength": 4096,
          "type": "string"
        },
        "requested_action": {
          "additionalProperties": false,
          "properties": {
            "description": {
              "maxLength": 4096,
              "type": "string"
            },
            "destination": {
              "maxLength": 4096,
              "type": "string"
            },
            "spend_usd": {
              "type": [
                "string",
                "number"
              ]
            }
          },
          "required": [
            "description"
          ],
          "type": "object"
        }
      },
      "required": [
        "operation_id",
        "action_type",
        "requested_action",
        "authority_scope"
      ],
      "type": "object"
    },
    "bodyType": {
      "enum": [
        "json",
        "form-data",
        "text"
      ],
      "type": "string"
    },
    "method": {
      "enum": [
        "POST",
        "PUT",
        "PATCH"
      ],
      "type": "string"
    },
    "type": {
      "const": "http",
      "type": "string"
    }
  },
  "required": [
    "type",
    "method",
    "bodyType",
    "body"
  ],
  "type": "object"
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "additionalProperties": false,
          "properties": {
            "action_type": {
              "maxLength": 4096,
              "type": "string"
            },
            "authority_scope": {
              "additionalProperties": false,
              "properties": {
                "allowed_action_types": {
                  "items": {
                    "maxLength": 4096,
                    "type": "string"
                  },
                  "maxItems": 100,
                  "type": "array"
                },
                "denied_action_types": {
                  "items": {
                    "maxLength": 4096,
                    "type": "string"
                  },
                  "maxItems": 100,
                  "type": "array"
                },
                "human_approval_action_types": {
                  "items": {
                    "maxLength": 4096,
                    "type": "string"
                  },
                  "maxItems": 100,
                  "type": "array"
                }
              },
              "type": "object"
            },
            "constraints": {
              "additionalProperties": false,
              "properties": {
                "max_spend_usd": {
                  "type": [
                    "string",
                    "number"
                  ]
                },
                "prohibited_destinations": {
                  "items": {
                    "maxLength": 4096,
                    "type": "string"
                  },
                  "maxItems": 100,
                  "type": "array"
                },
                "required_evidence": {
                  "items": {
                    "maxLength": 4096,
                    "type": "string"
                  },
                  "maxItems": 100,
                  "type": "array"
                }
              },
              "type": "object"
            },
            "evidence_items": {
              "items": {
                "additionalProperties": false,
                "properties": {
                  "description": {
                    "maxLength": 4096,
                    "type": "string"
                  },
                  "name": {
                    "maxLength": 4096,
                    "type": "string"
                  },
                  "result": {
                    "type": [
                      "boolean",
                      "null"
                    ]
                  },
                  "source": {
                    "maxLength": 4096,
                    "type": "string"
                  }
                },
                "required": [
                  "name"
                ],
                "type": "object"
              },
              "maxItems": 50,
              "type": "array"
            },
            "operation_id": {
              "maxLength": 4096,
              "type": "string"
            },
            "requested_action": {
              "additionalProperties": false,
              "properties": {
                "description": {
                  "maxLength": 4096,
                  "type": "string"
                },
                "destination": {
                  "maxLength": 4096,
                  "type": "string"
                },
                "spend_usd": {
                  "type": [
                    "string",
                    "number"
                  ]
                }
              },
              "required": [
                "description"
              ],
              "type": "object"
            }
          },
          "required": [
            "operation_id",
            "action_type",
            "requested_action",
            "authority_scope"
          ],
          "type": "object"
        },
        "bodyType": {
          "enum": [
            "json",
            "form-data",
            "text"
          ],
          "type": "string"
        },
        "method": {
          "enum": [
            "POST",
            "PUT",
            "PATCH"
          ],
          "type": "string"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method",
        "bodyType",
        "body"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "additionalProperties": false,
          "properties": {
            "authority_boundary": {
              "type": "string"
            },
            "decision": {
              "enum": [
                "ALLOW",
                "DENY",
                "ESCALATE"
              ],
              "type": "string"
            },
            "evidence_boundary": {
              "const": "caller_supplied"
            },
            "matched_constraints": {
              "items": {
                "type": "string"
              },
              "type": "array"
            },
            "missing_evidence": {
              "items": {
                "type": "string"
              },
              "type": "array"
            },
            "operation_id": {
              "type": "string"
            },
            "reason_code": {
              "enum": [
                "P001",
                "P002",
                "P003"
              ],
              "type": "string"
            },
            "reasons": {
              "items": {
                "type": "string"
              },
              "type": "array"
            },
            "receipt_hash": {
              "pattern": "^[0-9a-f]{64}$",
              "type": "string"
            }
          },
          "required": [
            "operation_id",
            "decision",
            "reason_code",
            "reasons",
            "matched_constraints",
            "missing_evidence",
            "evidence_boundary",
            "authority_boundary",
            "receipt_hash"
          ],
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}