Address autocomplete
Let users search by partial address, street, building name or postcode and select a clean, structured result.
GET /v1/autocomplete?q=…
Add fast UK address autocomplete, postcode lookup, UPRN resolution and geospatial search to your product. Built for developers, agencies and platforms that need clean address capture without enterprise complexity.
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Add your address
Use one API for autocomplete, postcode lookup, UPRN resolution and location-based address search — with API keys, usage limits and dashboard visibility included.
Let users search by partial address, street, building name or postcode and select a clean, structured result.
Retrieve all known addresses for a UK postcode and return structured fields for your form or workflow.
Resolve a Unique Property Reference Number into a full address record. Useful for property, legal, housing and compliance workflows.
Use latitude and longitude data to support service areas, delivery zones, proximity search and local matching.
Track requests by API key, monitor quotas and upgrade plans without changing your integration.
Use plain JSON responses and X-API-Key authentication. No SDK lock-in and no complex onboarding.
X-API-Key header auth, no SDKs required. Works from any language or framework in minutes.
Full OpenAPI docs at /docs. Explore schemas, try endpoints, copy code samples.
Track request counts, manage API keys, and upgrade plans — all in one portal.
AddressConnect is designed for teams that need more than a postcode checker, but do not want enterprise sales calls, complex contracts or heavyweight integration work.
Capture clean addresses and UPRNs for letting platforms, estate agency CRMs, landlord tools, repair reporting and property management workflows.
Use structured address capture and UPRN support in client intake, conveyancing, probate, AML and document automation workflows.
Add address autocomplete and postcode lookup to client websites, quote forms, booking forms and SaaS MVPs with a simple API key.
Validate addresses at the point of booking and support service-area checks using postcode, address and location data.
No complex setup. No long onboarding. Just create, generate, and go.
Sign up free. No credit card needed to start exploring the API.
Create a key in the dashboard in seconds. Copy and start using immediately.
Hit /v1/autocomplete from anywhere. Address results in under a minute.
Pass your key in a header, send the query string, get ranked address results back in JSON. No body parsing, no session management, no SDK.
Explore full API docscurl https://api.addressconnect.com/v1/autocomplete \
-H "X-API-Key: YOUR_API_KEY" \
-G -d "q=10 Downing"{
"results": [{
"label": "10 Downing Street, London, SW1A 2AA",
"postcode": "SW1A 2AA",
"uprn": 100023336956,
"score": 0.92
}],
"count": 1
}Free to try. No credit card required. Create your account and make your first request in under a minute.