Api Endpoint

3HZ Verified Random Integer

Cryptographically verifiable random integer generated from the public drand Quicknet randomness beacon. Choose inclusive min and max values. The response includes the drand round, randomness and signature so the result can be independently checked.

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Offering

Provider: wallet-services-poc-clean-mainnet.3hz-services.workers.dev
Method: GET
Offering type: Api Endpoint
Transport type: http
Category: Security
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://wallet-services-poc-clean-mainnet.3hz-services.workers.dev/verified-random
MIME type: application/json
First seen: 2026-10-16T01:50:24.663Z
Last seen: 2026-11-02T01:05:56.346Z
Tags: Random, randomness, verified-random, drand, cryptographic

Website

Payment pricing

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

Payment option 1: 0.001 USDC
Atomic price: 1000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "payTo": "0xEb0f642c1B71Ec3b3594303de1D09EA2532B0f5e"
  }
]

Observed health

Status: Healthy
Latest latency: 226 ms
Average latency: 402 ms
HTTP status: 402
Last checked: 2026-11-02T01:05:56.341Z
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

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "min": {
          "type": "integer",
          "default": 1,
          "description": "Inclusive minimum integer"
        },
        "max": {
          "type": "integer",
          "default": 100,
          "description": "Inclusive maximum integer"
        }
      },
      "additionalProperties": false
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "additionalProperties": false,
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET"
          ],
          "type": "string"
        },
        "queryParams": {
          "additionalProperties": false,
          "properties": {
            "max": {
              "default": 100,
              "description": "Inclusive maximum integer",
              "type": "integer"
            },
            "min": {
              "default": 1,
              "description": "Inclusive minimum integer",
              "type": "integer"
            }
          },
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "additionalProperties": false,
      "properties": {
        "example": {
          "properties": {
            "algorithm": {
              "type": "string"
            },
            "chain_hash": {
              "type": "string"
            },
            "fetched_at": {
              "type": "string"
            },
            "max": {
              "type": "integer"
            },
            "min": {
              "type": "integer"
            },
            "randomness": {
              "type": "string"
            },
            "round": {
              "type": "integer"
            },
            "signature": {
              "type": "string"
            },
            "source": {
              "type": "string"
            },
            "value": {
              "type": "integer"
            }
          },
          "required": [
            "value",
            "min",
            "max",
            "round",
            "randomness",
            "signature",
            "source",
            "chain_hash",
            "algorithm",
            "fetched_at"
          ],
          "type": "object"
        },
        "type": {
          "const": "json",
          "type": "string"
        }
      },
      "required": [
        "type",
        "example"
      ],
      "type": "object"
    }
  },
  "required": [
    "input",
    "output"
  ],
  "type": "object"
}