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Address validation in n8n

Self-hosted automation with validated Danish addresses — the HTTP Request node covers all our endpoints.

n8n's HTTP Request node calls the API directly, and the JSON response flows on through the workflow without parsing. Run n8n self-hosted and address data never leaves your own infrastructure beyond the call to us.

How to set it up

  1. Get an API key
    Free account on the dashboard → copy dawa_live_….
  2. Add the HTTP Request node
    After the node that delivers the address — webhook, IMAP, database…
  3. Configure the call
    GET against /datavask/adresser with betegnelse in the query and the key as an X-Api-Key header (store it as an n8n credential).
  4. Branch on category
    An IF node on kategori: A/B continue automatically, C goes to a manual queue.
# The HTTP Request node in n8n
Node: HTTP Request
GET https://api.danadresse.dk/datavask/adresser
Query:  betegnelse = {{ $json.address }}
Header: X-Api-Key: dawa_live_…

// Svaret er JSON — brug det direkte i næste node

Good to know

Credential handling

Store the key as a Header Auth credential in n8n — it won't sit in plain text in the workflow.

Batch jobs

Loop over CSV/database with the Split In Batches node and cleanse thousands of addresses in one workflow.

Every endpoint

Autocomplete, reverse geocoding, DAGI, BBR — same node, different URL.

A community node is on the roadmap — write to partners@lynbro.dk if you want to contribute.

Ready to try it with n8n?

Free Hobby key, no credit card — the API answers in under 100 ms.

Get an API key →

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