Differences from DAWA

The endpoints here answer with DAWA's paths, parameters, field names, ids and error bodies, and are tested against DAWA's own answers captured on 23 September 2026. This page lists everything that is not the same.

Authentication

• Every request needs an api-key. DAWA needed none. See Authentication.
• An API key is refused from a web page. Browser code uses a domain token, in api-key or in the path (/t/{domain-token}/…).
• Requests are rate limited, and addresses are metered against your plan's daily allowance. Refusals for these are problem details with 429 and Retry-After, not DAWA errors. See Errors.

Endpoints

Provided:

• /autocomplete, /adresser/autocomplete, /adgangsadresser/autocomplete, /vejnavne/autocomplete, /postnumre/autocomplete
• /adresser, /adresser/{id}
• /adgangsadresser, /adgangsadresser/{id}, /adgangsadresser/reverse
• /vejnavne, /vejnavne/{navn}
• /postnumre, /postnumre/{nr}
• /datavask/adresser, /datavask/adgangsadresser — see Datavask below

Not provided: every other DAWA endpoint — among them /kommuner, /regioner, /sogne, /vejstykker, /navngivneveje, /jordstykker, /ejerlav, /bebyggelser, /stednavne and the replication API. Records still carry DAWA's href links to these resources, pointing at our host; following one answers 404. If your code needs one of them, tell us.

Added: kun_tekst=true on /autocomplete, /adresser/autocomplete and /adgangsadresser/autocomplete. Each suggestion then carries only its texts and the record's id and href, and the answer is free; the address picked is one look-up at /adresser/{id}. Without it, the answer is DAWA's.

Formats

format=json and format=geojson only; any other format, such as csv or ndjson, is refused with QueryParameterFormatError. A JSONP callback parameter is ignored and plain JSON returned.

Paging

• /adresser and /adgangsadresser always page: per_side is at most 100, and a request without it gets the first 100. DAWA returned every match in one answer when no paging was asked for.
• /vejnavne filtered by postnr or kommunekode without per_side returns every street, as DAWA did. /vejnavne?q= with no filter (every street name in Denmark) pages.
• The autocompletes return at most 100 suggestions (default 20).
• There is no whole-country download. Walk a search a page at a time; each record returned is one look-up.

Nested records (struktur=nestet)

• sogn, politikreds, retskreds, opstillingskreds, afstemningsområde, jordstykke and zone come from registers other than DAR (DAGI, the boundaries register, and Matriklen, the land register), which this service does not import. These blocks hold DAWA's values of 23 September 2026 and are kept when DAR changes an address; an address created since then has them as null. They are not updated. Don't build on them.
• bebyggelser is always an empty array.
• Every DAR field, the municipality and the region are complete, as are flad and mini records.

Order

• The set of suggestions an autocomplete returns follows DAWA's rules, and so do their texts and caret positions. When several addresses score alike, their order can differ from DAWA's.
• A text search (q) on /adresser or /adgangsadresser returns its matches in a stable order that is not always DAWA's.
• Postcodes found by text (/postnumre?q=, /postnumre/autocomplete) are the same set as DAWA's, ordered with a name typed in full first, then by number. DAWA ranked them by its own full-text score.
• A search with filters only (no q) pages in a stable order of its own. DAWA ordered those pages by id, so page 2 here is not DAWA's page 2; walk every page and the set is the same.
• Street names (/vejnavne) come back in a stable order of their own; DAWA's had no fixed order either.

Datavask

• The answer has DAWA's shape (kategori, resultater, vaskeresultat), as DAWA documented it; DAWA's capture holds no datavask answers to test against.
• The scoring is our own. kategori means what DAWA's did (A exact, B safe to use, C uncertain), and afstand and forskelle count edits per field, but the same line can get a different category, distances or order of candidates than DAWA gave it.
• This service holds current addresses only, so aktueladresse (aktueladgangsadresse) is always the same record as adresse; a retired or historic address is never matched. anvendtstormodtagerpostnummer is always null.
• At most 10 results, and betegnelse at most 200 characters.

Data

• Addresses are DAR's, updated once a month from Datafordeleren (since 6 October 2026; before that, DAWA's snapshot of 23 September 2026).
• Postcodes are DAWA's own list of 23 September 2026, 1,089 of them.
• Ids are DAR's UUIDs, the same ids DAWA used, so ids you have stored still resolve.

Moving over, step by step (in Danish): Skift fra DAWA.