`lookup_postcode`

Pack: postcodes · Endpoint: https://gateway.pipeworx.io/postcodes/mcp

Get geographic details for a UK postcode (e.g., ‘SW1A 1AA’). Returns coordinates, region, district, ward, and constituency.

Parameters

Name	Type	Required	Description
`postcode`	string	yes	UK postcode to look up (e.g. “SW1A 1AA” or “SW1A1AA”).

Example call

Arguments

{
  "postcode": "SW1A 1AA"
}

curl

curl -X POST https://gateway.pipeworx.io/postcodes/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"lookup_postcode","arguments":{"postcode":"SW1A 1AA"}}}'

TypeScript (@pipeworx/sdk)

import { Pipeworx } from '@pipeworx/sdk';
const pipeworx = new Pipeworx();

const result = await pipeworx.call('lookup_postcode', {
  "postcode": "SW1A 1AA"
});

More examples

{
  "postcode": "M1 1AE"
}

Response shape

Always returns: postcode, incode, outcode, country, codes

Field	Type	Description
`postcode`	string	The UK postcode
`incode`	string	Incode part of postcode
`outcode`	string	Outcode part of postcode
`country`	string	Country name
`region`	string \| null	Region name
`admin_district`	string \| null	Administrative district
`admin_ward`	string \| null	Administrative ward
`parliamentary_constituency`	string \| null	Parliamentary constituency
`lat`	number \| null	Latitude coordinate
`lon`	number \| null	Longitude coordinate
`eastings`	number \| null	Eastings grid reference
`northings`	number \| null	Northings grid reference
`codes`	object	Codes mapping object

Full JSON Schema

{
  "type": "object",
  "properties": {
    "postcode": {
      "type": "string",
      "description": "The UK postcode"
    },
    "incode": {
      "type": "string",
      "description": "Incode part of postcode"
    },
    "outcode": {
      "type": "string",
      "description": "Outcode part of postcode"
    },
    "country": {
      "type": "string",
      "description": "Country name"
    },
    "region": {
      "type": [
        "string",
        "null"
      ],
      "description": "Region name"
    },
    "admin_district": {
      "type": [
        "string",
        "null"
      ],
      "description": "Administrative district"
    },
    "admin_ward": {
      "type": [
        "string",
        "null"
      ],
      "description": "Administrative ward"
    },
    "parliamentary_constituency": {
      "type": [
        "string",
        "null"
      ],
      "description": "Parliamentary constituency"
    },
    "lat": {
      "type": [
        "number",
        "null"
      ],
      "description": "Latitude coordinate"
    },
    "lon": {
      "type": [
        "number",
        "null"
      ],
      "description": "Longitude coordinate"
    },
    "eastings": {
      "type": [
        "number",
        "null"
      ],
      "description": "Eastings grid reference"
    },
    "northings": {
      "type": [
        "number",
        "null"
      ],
      "description": "Northings grid reference"
    },
    "codes": {
      "type": "object",
      "description": "Codes mapping object"
    }
  },
  "required": [
    "postcode",
    "incode",
    "outcode",
    "country",
    "codes"
  ]
}

Connect

Add this to your MCP client config, or use one-click install buttons:

{
  "mcpServers": {
    "postcodes": {
      "url": "https://gateway.pipeworx.io/postcodes/mcp"
    }
  }
}

See Getting Started for client-specific install steps.

lookup_postcode