Roundhouse

agosint

EU VAT number validation against the official VIES service: valid or invalid, registered name and address, an optional check of the name you expect and, if you give your own VAT number, a VIES consultation number to keep as audit evidence. Norwegian numbers are checked against the Norwegian VAT register. Use when: onboarding an EU supplier or customer, or before paying an invoice.

OtherLiveeip155:8453Exactvia cdp
https://agosint.shveik.dev/x402/vat
Calls · 30d
3
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 15 snapshots so far.
$57.96
Verified settled volume
365 settlements proven x402 by their on-chain EIP-3009 marker.
$0.015
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 2026-10-13 00:16Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xbBa594F5549392DF7A8182049291b605948F5F86

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.

{
  "error": "send a JSON body (shape: extensions.bazaar.info.input); quoted for 1 result",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0xbBa594F5549392DF7A8182049291b605948F5F86",
      "amount": "15000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 120
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "decimals": 6,
        "feePayer": "7wboEQdg5fVrh88sAzPPLhmfqmnMNr82BW7KHYBEZo8q"
      },
      "payTo": "7wboEQdg5fVrh88sAzPPLhmfqmnMNr82BW7KHYBEZo8q",
      "amount": "15000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 120
    },
    {
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x5893209222F2C959Eb5D4C6CD2828b06845e57BE",
      "amount": "15000",
      "scheme": "exact",
      "network": "eip155:137",
      "maxTimeoutSeconds": 120
    }
  ],
  "resource": {
    "url": "https://agosint.shveik.dev/x402/vat",
    "mimeType": "application/json",
    "description": "EU VAT number validation against the official VIES service: valid or invalid, registered name and address, an optional check of the name you expect and, if you give your own VAT number, a VIES consultation number to keep as audit evidence. Norwegian numbers are checked against the Norwegian VAT register. Use when: onboarding an EU supplier or customer, or before paying an invoice.",
    "serviceName": "agosint"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "vat": "CZ45274649",
            "expect_name": "ČEZ"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "name": "ČEZ, a.…",
            "note": "The resu…",
            "valid": true,
            "number": "45274649",
            "schema": "agosint.…",
            "source": "vies",
            "address": "Duhová 1…",
            "country": "CZ",
            "receipt": {},
            "checked_at": "2026-10-…",
            "name_match": "match",
            "attribution": "Result o…"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "vat"
                ],
                "properties": {
                  "vat": {
                    "type": "string",
                    "maxLength": 20
                  },
                  "expect_name": {
                    "type": "string",
                    "maxLength": 200
                  },
                  "requester_vat": {
                    "type": "string",
                    "maxLength": 20
                  }
                },
                "additionalProperties": false
              },
              "type": {
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json"
                ],
                "type": "string"
              }
            }
          }
        }
      }
    }
  },
  "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.

0.015USDC≈ $0.015 USD
on Base · exact scheme

Pay 0.015 USDC on Base to 0xbBa5…F5F86. The signed payment is good for 2 minutes.

Paid to
0xbBa5…F5F86
USD Coin contract
0x8335…02913
Payment window
2 minutes
As published
15000 smallest units
15000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
7wboEQ…EZo8q
Token contract
EPjFWd…TDt1v
Payment window
2 minutes
15000units
on Polygon · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0x5893…e57BE
Token contract
0x3c49…c3359
Payment window
2 minutes
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xbBa594F5549392DF7A8182049291b605948F5F86",
    "amount": "15000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 120
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "decimals": 6,
      "feePayer": "7wboEQdg5fVrh88sAzPPLhmfqmnMNr82BW7KHYBEZo8q"
    },
    "payTo": "7wboEQdg5fVrh88sAzPPLhmfqmnMNr82BW7KHYBEZo8q",
    "amount": "15000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 120
  },
  {
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x5893209222F2C959Eb5D4C6CD2828b06845e57BE",
    "amount": "15000",
    "scheme": "exact",
    "network": "eip155:137",
    "maxTimeoutSeconds": 120
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "vat": "CZ45274649",
          "expect_name": "ČEZ"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "name": "ČEZ, a.…",
          "note": "The resu…",
          "valid": true,
          "number": "45274649",
          "schema": "agosint.…",
          "source": "vies",
          "address": "Duhová 1…",
          "country": "CZ",
          "receipt": {},
          "checked_at": "2026-10-…",
          "name_match": "match",
          "attribution": "Result o…"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "required": [
                "vat"
              ],
              "properties": {
                "vat": {
                  "type": "string",
                  "maxLength": 20
                },
                "expect_name": {
                  "type": "string",
                  "maxLength": 200
                },
                "requester_vat": {
                  "type": "string",
                  "maxLength": 20
                }
              },
              "additionalProperties": false
            },
            "type": {
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json"
              ],
              "type": "string"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-10-13 00:16Z
Last indexed by Roundhouse
2026-10-23 05:40Z
Last enriched (probe, favicon, geo)
2026-10-12 09:16Z
x402 version
2
Max timeout
120s
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. 15 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 agosint 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=agosint'
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://agosint.shveik.dev/x402/vat, 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. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

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