Full Royal Mail PAF coverage

Every UK address,
one lightning-fast API.

Search, validate and autocomplete addresses from the complete Postcode Address File — with usage analytics, token-based access and supersession history built in.

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30M+

UK delivery points

<50ms

Median lookup time

10+ yrs

Charity-tech expertise

99.9%

API uptime target

Built for accurate addressing

Everything you need to capture clean, deliverable UK addresses across your products.

Postcode & address search

Query the full PAF dataset by postcode, street or property and return structured, validated results.

Type-ahead autocomplete

Drop-in autocomplete that resolves a full address in a few keystrokes — fewer failed deliveries.

Usage analytics

Track every request per token, monitor quotas and understand exactly how your integrations are used.

Supersession history

See when addresses are superseded or retired, so your records stay current with Royal Mail updates.

Token-based API

Issue, rotate and revoke scoped API tokens from the dashboard. Secure by default.

Compliance-ready

From an HMRC-listed supplier with a decade of experience serving regulated charity and finance clients.

Live in three steps

1

Create an account

Sign up in seconds and land on your dashboard.
2

Generate an API token

Issue a scoped token and copy it straight into your app.
3

Start looking up addresses

Call the API or use the dashboard to search and validate addresses.

address lookup

curl https://paf-service.test/api/v1/addresses \
  -H "Authorization: Bearer YOUR_TOKEN" \
  --data-urlencode "q=SW1A 1AA"

{
  "postcode": "SW1A 1AA",
  "line_1":   "Buckingham Palace",
  "town":     "London"
}

Start validating addresses today

Create a free account and generate your first API token in under a minute.