Index onlineMerchant portal
Api Endpoint

Postal Geo Lookup

Postal code resolution for ~60 countries via Zippopotam.us (GeoNames data, CC BY 4.0). Forward: ?country=us&code=90210 -> place names, state, lat/lon. Reverse: ?country=us&state=ca&city=beverly hills -> matching postal codes with coordinates. Unknown codes return found=false (an explicit validation verdict). Cached 30 days.

Open interactive test console

Offering

Provider
data.greeneris.io
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Location And Travel
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://data.greeneris.io/v1/geo/postal
MIME type
application/json
First seen
2026-10-16T01:50:14.534Z
Last seen
Tags
postal-code, zip, geocoding, address, Validation, logistics

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": "0x6ab8efe305cce67daa48c97bde29c04402822dff"
  }
]

Observed health

Status
Healthy
Latest latency
100 ms
Average latency
814 ms
HTTP status
402
Last checked
Reachability
100% over 12 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",
        "HEAD",
        "DELETE"
      ]
    },
    "queryParams": {
      "type": "object",
      "required": [
        "country"
      ],
      "properties": {
        "country": {
          "type": "string",
          "description": "2-letter ISO country code, e.g. us, fr, de"
        },
        "code": {
          "type": "string",
          "description": "Postal code to resolve (forward mode)"
        },
        "state": {
          "type": "string",
          "description": "State/region name or code (reverse mode, with city)"
        },
        "city": {
          "type": "string",
          "description": "City name (reverse mode, with state)"
        }
      }
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "json",
  "example": {
    "mode": "forward",
    "count": 1,
    "found": true,
    "places": [
      {
        "name": "Beverly Hills",
        "state": "California",
        "latitude": 34.0901,
        "longitude": -118.4065,
        "state_code": "CA"
      }
    ],
    "source": "Zippopotam.us, data from GeoNames (CC BY 4.0, attribution required)",
    "country": "United States",
    "postal_code": "90210",
    "country_code": "US"
  }
}