Mearef - Mid-East reference data

Live 402 challenge

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

{
  "mpp": "Also payable via MPP (mpp.dev): see the WWW-Authenticate: Payment challenge on this response (evm/charge, Base USDC).",
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x1F0409ccD20A2fb497d4DeCeF4E17e9d0688FeA6",
      "amount": "3000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "message": "Payment required: $0.003 USDC on Base. Pay with x402 (PAYMENT-SIGNATURE) or MPP, or buy card credit at /pricing.",
  "resource": {
    "url": "https://mearef.dev/v1/taxid/validate",
    "tags": [
      "tax-id",
      "vat-number",
      "validation",
      "kyb",
      "middle-east"
    ],
    "iconUrl": "https://mearef.dev/logo.png",
    "mimeType": "application/json",
    "description": "Tax-ID / VAT-number validation for Middle Eastern countries: valid/invalid, normalised form, id type and the reason it failed. Format plus the official check-digit algorithm where the tax authority publishes one; every rule cited to an official source with its date. Pure algorithmic, no registry lookup",
    "serviceName": "Mearef - Mid-East reference data"
  },
  "price_usd": "$0.003",
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "id": "300000000000003",
            "country": "sa"
          }
        }
      },
      "schema": {
        "type": "object",
        "$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"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "country",
                  "id"
                ],
                "properties": {
                  "id": {
                    "type": "string",
                    "description": "The tax ID / VAT number as written (spaces, dots, dashes and the VAT country prefix are accepted)"
                  },
                  "country": {
                    "type": "string",
                    "description": "ISO 3166-1 alpha-2 country code on this brand (see GET /v1/taxid/coverage)"
                  }
                }
              }
            },
            "additionalProperties": false
          }
        }
      }
    }
  },
  "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.

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x1F0409ccD20A2fb497d4DeCeF4E17e9d0688FeA6",
    "amount": "3000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "id": "300000000000003",
          "country": "sa"
        }
      }
    },
    "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"
            },
            "queryParams": {
              "type": "object",
              "required": [
                "country",
                "id"
              ],
              "properties": {
                "id": {
                  "type": "string",
                  "description": "The tax ID / VAT number as written (spaces, dots, dashes and the VAT country prefix are accepted)"
                },
                "country": {
                  "type": "string",
                  "description": "ISO 3166-1 alpha-2 country code on this brand (see GET /v1/taxid/coverage)"
                }
              }
            }
          },
          "additionalProperties": false
        }
      }
    }
  }
}

Provenance

Seen in the source catalog

2026-10-24 23:11Z

Last indexed by Roundhouse

2026-10-26 17:40Z

Last enriched (probe, favicon, geo)

2026-10-25 05:46Z

x402 version

2

Max timeout

300s

Liveness probe

HTTP 402