Postal Codes of a Place (Zippopotam.us)

zippopotam/place-postal-codes

The postal codes of a place, by country code, state or region abbreviation and place name: each postal code with its place name and approximate latitude and longitude. The place name matches by prefix of at least three letters, so a short name can return many places. An unknown combination is refused as VALIDATION.

activeper callv1

Price

$0.0026 per call

You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $5.

Data source

Zippopotam.us

Postal code data from Zippopotam.us, made available under the Open Database License (ODbL 1.0, opendatacommons.org/licenses/odbl/1.0/), with individual contents under the Database Contents License (DbCL 1.0). Credit Zippopotam.us as the source. Responses are passed through unmodified. Served by Eden Engine; not an official Zippopotam.us product.

Use it

Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.

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agent

// 1. search: find the tool
omnial_search({ query: "what you need" })

// 2. inspect: price and input schema
omnial_inspect({ tool: "zippopotam/place-postal-codes" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "zippopotam/place-postal-codes" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "zippopotam/place-postal-codes", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "zippopotam/place-postal-codes", input: { /* ... */ } })

// 5. settle: the call is charged when it finishes, nothing to do

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Pricing

Every charge this tool can incur.

Charge	Price
Per call	$0.0026

Updated: Oct 21, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "required": [
    "country_code",
    "state_code",
    "place_name"
  ],
  "properties": {
    "place_name": {
      "type": "string",
      "pattern": "^[^/?#]+$",
      "maxLength": 60,
      "minLength": 3,
      "description": "Place name or its first letters, at least 3 characters, for example Belmont or New York."
    },
    "state_code": {
      "type": "string",
      "pattern": "^[A-Za-z0-9]{1,4}$",
      "description": "State or region abbreviation as the service uses it, for example MA, CA, ENG, NSW or BE."
    },
    "country_code": {
      "type": "string",
      "pattern": "^[A-Za-z]{2}$",
      "description": "ISO 3166 alpha-2 country code, for example US, DE or GB."
    }
  },
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "required": [
    "country",
    "country abbreviation",
    "state",
    "state abbreviation",
    "place name",
    "places"
  ],
  "properties": {
    "state": {
      "type": "string"
    },
    "places": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "place name",
          "longitude",
          "latitude"
        ],
        "properties": {
          "latitude": {
            "type": "string",
            "description": "Decimal degrees, as a string."
          },
          "longitude": {
            "type": "string",
            "description": "Decimal degrees, as a string."
          },
          "post code": {
            "type": "string"
          },
          "place name": {
            "type": "string"
          }
        },
        "additionalProperties": true
      },
      "description": "One entry per matching place, each with its postal code."
    },
    "country": {
      "type": "string"
    },
    "place name": {
      "type": "string",
      "description": "The first matching place name."
    },
    "state abbreviation": {
      "type": "string"
    },
    "country abbreviation": {
      "type": "string"
    }
  },
  "additionalProperties": true
}