UK Postcodes

GET https://fourzerotwo.si/v1/uk-postcodes/lookup

Full ONS record for one UK postcode, including latitude/longitude and administrative areas.

MCP tool: uk-postcodes__lookup

Param	Type	Description
postcode	string	UK postcode, e.g. "SW1A 1AA"

{
    "status": 200,
    "result": {
        "postcode": "SW1A 1AA",
        "latitude": 51.501009,
        "longitude": -0.141588,
        "admin_district": "Westminster"
    }
}

# unpaid: returns 402 with the price
curl -i "https://fourzerotwo.si/v1/uk-postcodes/lookup?postcode=SW1A+1AA"

GET https://fourzerotwo.si/v1/uk-postcodes/nearest

Postcodes nearest to a given UK postcode.

MCP tool: uk-postcodes__nearest

Param	Type	Description
postcode	string	UK postcode
limit?	integer	Max results (default 10)

{
    "status": 200,
    "result": [
        {
            "postcode": "SW1A 1AA",
            "distance": 0
        }
    ]
}

# unpaid: returns 402 with the price
curl -i "https://fourzerotwo.si/v1/uk-postcodes/nearest?postcode=SW1A+1AA"