Roundhouse AI

3HZ Verified Random Integer

Deploy serverless functions globally in seconds. No cold starts, 330+ cities, infinite concurrency, and pay only for CPU time. Support for JavaScript, TypeScript, Python, and Rust.

DataLiveeip155:8453Exactvia cdp
https://wallet-services-poc-clean-mainnet.3hz-services.workers.dev/verified-random
RandomRandomnessVerified-randomDrandCryptographic
Calls · 30d
1
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 8 snapshots so far.
$0.01
Verified settled volume
10 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0010
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-17 08:26Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xEb0f642c1B71Ec3b3594303de1D09EA2532B0f5e

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.001USDC≈ $0.001 USD
on Base · exact scheme

Pay 0.001 USDC on Base to 0xEb0f…B0f5e. The signed payment is good for 1 minute.

Paid to
0xEb0f…B0f5e
USD Coin contract
0x8335…02913
Payment window
1 minute
As published
1000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xEb0f642c1B71Ec3b3594303de1D09EA2532B0f5e",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "max": 100,
          "min": 1
        }
      },
      "output": {
        "type": "json",
        "example": {
          "max": 100,
          "min": 1,
          "round": 32275886,
          "value": 78,
          "source": "drand Quicknet",
          "algorithm": "value = min + (randomness mod (max-min+1))",
          "signature": "865671cf8df1a34d9e2fbc98f5dafb1cfda0d3fd0c2053a8eca1ab99a1f99361b3b9ee290c6038f7ddb4996504accf6b",
          "chain_hash": "52db9ba70e0cc0f6eaf7803dd07447a1f5477735fd3f661792ba94600c84e971",
          "fetched_at": "2026-09-17T09:00:00.000Z",
          "randomness": "b5b9f9cd19fdebe3d36edd5f18d8de507f3d66809e8bb40aa7cd3cba0d086dcd"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input",
        "output"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "properties": {
                "max": {
                  "type": "integer",
                  "default": 100,
                  "description": "Inclusive maximum integer"
                },
                "min": {
                  "type": "integer",
                  "default": 1,
                  "description": "Inclusive minimum integer"
                }
              },
              "additionalProperties": false
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type",
            "example"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "json"
            },
            "example": {
              "type": "object",
              "required": [
                "value",
                "min",
                "max",
                "round",
                "randomness",
                "signature",
                "source",
                "chain_hash",
                "algorithm",
                "fetched_at"
              ],
              "properties": {
                "max": {
                  "type": "integer"
                },
                "min": {
                  "type": "integer"
                },
                "round": {
                  "type": "integer"
                },
                "value": {
                  "type": "integer"
                },
                "source": {
                  "type": "string"
                },
                "algorithm": {
                  "type": "string"
                },
                "signature": {
                  "type": "string"
                },
                "chain_hash": {
                  "type": "string"
                },
                "fetched_at": {
                  "type": "string"
                },
                "randomness": {
                  "type": "string"
                }
              }
            }
          },
          "additionalProperties": false
        }
      },
      "additionalProperties": false
    }
  }
}

Provenance

Seen in the source catalog
2026-09-17 08:26Z
Last indexed by Roundhouse
2026-09-25 10:50Z
Last enriched (probe, favicon, geo)
2026-09-17 11:45Z
x402 version
2
Max timeout
60s
Liveness probe
HTTP 402
Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 8 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service 3HZ Verified Random Integer and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=3HZ%20Verified%20Random%20Integer'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://wallet-services-poc-clean-mainnet.3hz-services.workers.dev/verified-random, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.