Roundhouse

Vokko

Probe a host for UCP, ACP, AP2, TAP, MCP, A2A, x402, MPP, llms.txt and OpenAPI. UCP is one cell — not the product.

TradingLiveeip155:8453Exactvia cdp
https://www.vokko.eu/api/v1/hosts/:domain
CallabilityIndex
Calls · 30d
3↑ 50%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 26 snapshots so far.
$0.08
Verified settled volume
4 settlements proven x402 by their on-chain EIP-3009 marker.
$0.020
Listed price
As published in the catalog. Always read the live 402 before paying.
3
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-09-17 03:47Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x07066Ea0e66CF277cd279eD7fBCA220ecB41E5a4

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.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "hint": "Subscribe for your host (€29/mo, 30 live reports/period), then send Authorization: Bearer vok_… for ?refresh=1 on that origin",
  "error": "payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x07066Ea0e66CF277cd279eD7fBCA220ecB41E5a4",
      "amount": "20000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 60
    }
  ],
  "machine": {
    "asset": "USDC",
    "scheme": "exact",
    "network": "eip155:8453",
    "priceUsd": 0.02
  },
  "upgrade": "https://vokko.eu/pricing",
  "x402Version": 2
}

Accepts

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

0.02USDC≈ $0.02 USD
on Base · exact scheme

Pay 0.02 USDC on Base to 0x0706…1E5a4. The signed payment is good for 1 minute.

Paid to
0x0706…1E5a4
USD Coin contract
0x8335…02913
Payment window
1 minute
As published
20000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x07066Ea0e66CF277cd279eD7fBCA220ecB41E5a4",
    "amount": "20000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "pathParams": {
          "domain": "allbirds.com"
        },
        "queryParams": {
          "refresh": "1"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "domain": "example.com",
          "probedAt": "2026-01-01T00:00:00.000Z",
          "protocols": [
            {
              "id": "ucp",
              "status": "present"
            },
            {
              "id": "mcp",
              "status": "absent"
            },
            {
              "id": "x402",
              "status": "callable"
            }
          ]
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "pathParams": {
              "type": "object",
              "required": [
                "domain"
              ],
              "properties": {
                "domain": {
                  "type": "string",
                  "description": "Host being re-probed"
                }
              }
            },
            "queryParams": {
              "type": "object",
              "properties": {}
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    },
    "routeTemplate": "/api/v1/hosts/:domain"
  }
}

Provenance

Seen in the source catalog
2026-09-17 03:47Z
Last indexed by Roundhouse
2026-09-24 08:00Z
Last enriched (probe, favicon, geo)
2026-09-20 13:15Z
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. 26 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 Vokko 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=Vokko'
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://www.vokko.eu/api/v1/hosts/:domain, 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.