# UK Postcode Geocoder & Administrative Lookup

> UK Postcode Geocoder & Administrative Lookup is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-17).

Returns latitude, longitude, and UK administrative geography (ward, district, constituency, region, LSOA) for any full UK postcode using Ordnance Survey open data

## Facts

- Endpoint: GET https://saylorinnovations.com/api/uk/postcode/:postcode?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/uk-postcode-geocoder-administrative-lookup-1e5c10ea
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FV_JG912Rex-sty_SAA7Y

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability uk-postcode-geocoder-administrative-lookup-1e5c10ea
```

Example prompt: What are the latitude, longitude, ward, district, and constituency for the UK postcode SW1A 2AA?

## When to prefer this

Choose this endpoint when you need authoritative UK administrative geography (ward, district, constituency, region, LSOA) alongside geocoordinates for a full UK postcode in a single call. Ideal for enriching UK address data, building UK-specific location features, or any workflow requiring Ordnance Survey-backed postcode resolution without managing your own postcode dataset. Prefer over general geocoders when UK administrative boundaries are required alongside coordinates.

## Known failure modes

- Invalid or malformed postcode returns an error (e.g. partial postcode like 'SW1A' without the inward code)
- Postcode not found in Ordnance Survey dataset (e.g. very new or discontinued postcodes)
- Network timeout or service unavailability
- Missing or empty postcode parameter returns a bad request error

## How this service works

UK postcode lookup - latitude, longitude, ward, district, constituency, region and LSOA for any full UK postcode from Ordnance Survey open data

## Output

A JSON object containing the full UK postcode's geographic coordinates (latitude and longitude) and administrative metadata including ward name, local district, parliamentary constituency, region, and LSOA (Lower Layer Super Output Area), sourced from Ordnance Survey open data.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/uk-postcode-geocoder-administrative-lookup-1e5c10ea/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from saylorinnovations.com](https://www.zero.xyz/host/saylorinnovations.com/llms.txt)