Documentation and API Reference

const res = await fetch('https://mackan.eu/tools/bolagsverket/search_name.php?q=IKEA');
const { results } = await res.json();
console.log(results[0]);
// { orgnr: "5560747551", name: "IKEA Aktiebolag", form: "AB",
//   active: true, city: "Älmhult", reg_year: 1958 }

const url = new URL('https://mackan.eu/tools/bolagsverket/search_address.php');
url.searchParams.set('addr', 'Drottninggatan Stockholm');
url.searchParams.set('branch', 'mode');
url.searchParams.set('form', 'AB');
url.searchParams.set('limit', '100');

const { results, total } = await fetch(url).then(r => r.json());
console.log(`${total} companies found, showing ${results.length}`);

const res = await fetch(
    'https://mackan.eu/tools/bolagsverket/reg_waves.php'
    + '?q=restaurang&min_year=1990&max_year=2024'
);
const { years, counts, anomalies } = await res.json();

// Peak years (statistical anomaly, mean + 2σ):
const peaks = years.filter((_, i) => anomalies[i]);
console.log(peaks); // e.g. [1999, 2000, 2021]

const res = await fetch(
    'https://mackan.eu/tools/bolagsverket/address_network.php?orgnr=5560747551'
);
const { nodes, total, address } = await res.json();
console.log(`${total} companies at ${address}`);
const active = nodes.filter(n => n.active).length;
console.log(`${active} active, ${total - active} dissolved`);

const res = await fetch(
    'https://mackan.eu/tools/bolagsverket/get_data.php?orgnr=556074-7551'
);
const data = await res.json();
// data.namn, data.juridiskForm, data.adress.gatuadress,
// data.sniKoder, data.registreringsDatum, data.beskrivning, ...
console.log(data.namn); // "IKEA Aktiebolag"

curl "https://mackan.eu/tools/bolagsverket/get_data.php?orgnr=5560747551"

{
  "results": [
    {
      "orgnr":       "5560747551",
      "name":        "IKEA Aktiebolag",
      "extra_names": ["INGKA Holding"],   // former or alternative names
      "form":        "AB",
      "active":      true,
      "city":        "Älmhult",
      "reg_year":    1958
    }
  ],
  "mode": "exact"   // "exact" | "menade_du" | "empty"
}

const res = await fetch(
    'https://mackan.eu/tools/bolagsverket/search_name.php?q=Spotify'
);
const { results, mode } = await res.json();

if (mode === 'menade_du') {
    console.log('No exact match, suggestions:', results.map(r => r.name));
} else {
    results.forEach(r => console.log(r.orgnr, r.name, r.city));
}

{
  "results": [
    {
      "orgnr":       "5566012345",
      "name":        "Modebutiken AB",
      "form":        "AB",
      "active":      true,
      "city":        "Stockholm",
      "zip":         "11122",
      "address":     "Drottninggatan 42 11122 Stockholm",
      "description": "Detaljhandel med kläder och accessoarer",
      "reg_year":    2012
    }
  ],
  "total": 47,   // total matching companies in the database
  "shown": 20    // count in this response
}

// Active ABs on Storgatan in Malmö
const { results, total } = await fetch(
    'https://mackan.eu/tools/bolagsverket/search_address.php'
    + '?addr=Storgatan+Malmö&form=AB&limit=100'
).then(r => r.json());
console.log(total, 'total');

// All companies (active + dissolved) at a postal code
const { results } = await fetch(
    'https://mackan.eu/tools/bolagsverket/search_address.php'
    + '?addr=11122&active=0&limit=500'
).then(r => r.json());

{
  "address":    "Storgatan 10",
  "city":       "Stockholm",
  "root_orgnr": "5560747551",
  "root_name":  "IKEA Aktiebolag",
  "total":      12,           // total matching companies (may exceed nodes)
  "nodes": [
    {
      "orgnr":    "5566012345",
      "name":     "Grannbolaget AB",
      "form":     "AB",
      "active":   true,
      "city":     "Stockholm",
      "reg_year": 2018
    }
  ]
}

const res = await fetch(
    'https://mackan.eu/tools/bolagsverket/address_network.php?orgnr=5560747551'
);
const { nodes, total, address } = await res.json();
console.log(`${total} companies at "${address}"`);

const dissolved = nodes.filter(n => !n.active);
if (dissolved.length > 0) {
    console.log(`${dissolved.length} dissolved:`, dissolved.map(n => n.name));
}

{
  "years":     [1990, 1991, ..., 2024],
  "counts":    [14, 18, ..., 312],      // registered companies per year
  "active":    [8, 11, ..., 240],       // of these still active
  "anomalies": [false, false, ..., true],  // true = statistical anomaly
  "total":     4821,
  "mean":      178.6,
  "stddev":    89.2,
  "threshold": 356.9,    // anomaly threshold (mean + 2σ)
  "query":     "restaurang"
}

// IT booms in Sweden: find peak years for tech companies
const { years, counts, anomalies, threshold } = await fetch(
    'https://mackan.eu/tools/bolagsverket/reg_waves.php'
    + '?q=teknik&form=AB&min_year=1995&max_year=2024'
).then(r => r.json());

const peaks = years
    .map((y, i) => ({ year: y, count: counts[i], anomaly: anomalies[i] }))
    .filter(d => d.anomaly);
console.log('Peak years:', peaks);
// [{year: 1999, count: 487, anomaly: true}, {year: 2000, ...}]

// All AB registrations without filtering (historical overview)
const data = await fetch(
    'https://mackan.eu/tools/bolagsverket/reg_waves.php?form=AB&min_year=1900'
).then(r => r.json());

{
  "last_updated": "2026-05-12 03:00:00",
  "approx_rows":  3014820
}

const { last_updated, approx_rows } = await fetch(
    'https://mackan.eu/tools/bolagsverket/bv_sync_info.php'
).then(r => r.json());

const date = new Intl.DateTimeFormat('en-GB').format(new Date(last_updated));
console.log(`${approx_rows.toLocaleString()} companies, last synced ${date}`);