Summary
Plug your AI assistant directly into official business registries across 15 EU countries. You get seven tools: company lookups against CVR, Brønnøysund, Companies House and others, VAT validation via VIES, bulk sanctions screening against UN/EU/OFAC lists, full KYB reports with financials and risk scores, address autocomplete from DAWA and Kartverket, LEI resolution through GLEIF, and enriched company data with Wikidata. Requires an API key from addonnordic.com. Free tier covers most countries, though NL and DE need a paid plan. Works locally via stdio or remotely as a custom connector in ChatGPT Pro and Claude.ai.
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Tools
Public tool metadata for what this MCP can expose to an agent.
11 tools
lookup_companyLook up basic company data (name, address, status, industry, VAT registration, founding date) from official European business registries. Supports 15 countries: DK (CVR), NO (Brønnøysund), SE (Bolagsverket), FI (YTJ/PRH), IE (CRO), UK (Companies House), FR (INSEE Sirene), DE (...2 params
Look up basic company data (name, address, status, industry, VAT registration, founding date) from official European business registries. Supports 15 countries: DK (CVR), NO (Brønnøysund), SE (Bolagsverket), FI (YTJ/PRH), IE (CRO), UK (Companies House), FR (INSEE Sirene), DE (...
Parameters* required
idstringNational company identifier. DK=CVR (8 digits), NO=orgnr (9), SE=orgnr (10), FI=Y-tunnus (NNNNNNN-D), IE=CRO (1-7), UK=8 chars, FR=SIREN (9), DE=HRB number, CZ=IČO (8), PL=NIP (10) or KRS (10), LV=11 digits, EE=8 digits, NL=KvK (8 digits), BE=BCE/KBO (10 digits), LU=RCSL (B + digits).
countrystringISO 3166-1 alpha-2 country code, lowercase. One of: dk, no, se, fi, ie, uk, fr, de, cz, pl, lv, ee, nl, be, lu.one of
dk · no · se · fi · ie · ukvalidate_vatValidate a VAT registration number against the official EU VIES service (or HMRC for GB). Returns validity status, registered name, and registered address.2 params
Validate a VAT registration number against the official EU VIES service (or HMRC for GB). Returns validity status, registered name, and registered address.
Parameters* required
countrystringISO 3166-1 alpha-2 country code, UPPERCASE. Use GB for the United Kingdom (HMRC), not UK. Supports all EU member states plus GB and NO.one of
DK · NO · SE · FI · NL · BEvat_numberstringVAT number WITHOUT country prefix — just the digits/characters. Example: for DK29403473, pass '29403473'.
screen_sanctionsScreen one or more names against UN, EU, OFAC and PEP sanctions lists (768K+ entries via OpenSanctions). Returns match scores with source attribution.3 params
Screen one or more names against UN, EU, OFAC and PEP sanctions lists (768K+ entries via OpenSanctions). Returns match scores with source attribution.
Parameters* required
fuzzybooleanEnable fuzzy matching. Default true.default: true
namesarrayArray of person or company names to screen. Max 1000 names per call.
min_scorenumberMinimum fuzzy match score, 0-1. Default 0.7. Lower values return more (lower-confidence) matches.default: 0.7
kyb_fullFull Know-Your-Business master report for a company across 15 EU countries (DK, NO, SE, FI, IE, UK, FR, DE, CZ, PL, LV, EE, NL, BE, LU). Aggregates 9 sections: identity, registered address (geocoded), key persons & directors, financial statements, official filings, LEI + corpo...2 params
Full Know-Your-Business master report for a company across 15 EU countries (DK, NO, SE, FI, IE, UK, FR, DE, CZ, PL, LV, EE, NL, BE, LU). Aggregates 9 sections: identity, registered address (geocoded), key persons & directors, financial statements, official filings, LEI + corpo...
Parameters* required
idstringNational company identifier — same format as lookup_company (e.g. DK CVR 8 digits, NO orgnr 9 digits).
countrystringISO 3166-1 alpha-2 country code, lowercase.one of
dk · no · se · fi · ie · ukautocomplete_addressAddress autocomplete using each country's authoritative register: DAWA (DK), Kartverket (NO), BAN (FR official), MML (FI), and Nominatim (others). Returns ranked address suggestions with coordinates. Supports 15 countries (DK, NO, SE, FI, IE, UK, FR, DE, CZ, PL, LV, EE, NL, BE...2 params
Address autocomplete using each country's authoritative register: DAWA (DK), Kartverket (NO), BAN (FR official), MML (FI), and Nominatim (others). Returns ranked address suggestions with coordinates. Supports 15 countries (DK, NO, SE, FI, IE, UK, FR, DE, CZ, PL, LV, EE, NL, BE...
Parameters* required
querystringPartial address — street name, postcode, city, or any combination. Min 2 characters.
countrystringISO 3166-1 alpha-2 country code, lowercase.one of
dk · no · se · fi · ie · uklookup_leiLook up a Legal Entity Identifier (LEI) via GLEIF — the global standard for entity identification. Returns legal name, registered address, status, parent + ultimate parent relationships, and child entities (subsidiaries). Also supports reverse lookup from a national company nu...5 params
Look up a Legal Entity Identifier (LEI) via GLEIF — the global standard for entity identification. Returns legal name, registered address, status, parent + ultimate parent relationships, and child entities (subsidiaries). Also supports reverse lookup from a national company nu...
Parameters* required
idstringNational company ID. Required when mode='reverse'.
leistring20-character ISO 17442 Legal Entity Identifier. Required when mode='lei'.
modestring'lei' = look up by LEI directly. 'reverse' = look up LEI from national company number.one of
lei · reversecountrystringISO 3166-1 alpha-2 country code, lowercase. Required when mode='reverse'.one of
dk · no · se · fi · ie · ukinclude_relationshipsbooleanIf true, also fetch parent and child entities. Only applies when mode='lei'.default: false
company_enrichedEnriched company data: basic registry data + DAWA-validated address with lat/lng + industry statistics (DST for DK, SSB for NO, etc.) + Wikidata enrichment (website, employees, CEO, ticker, logo, Wikipedia URL). One call, multiple sources. Supports 15 countries (DK, NO, SE, FI...2 params
Enriched company data: basic registry data + DAWA-validated address with lat/lng + industry statistics (DST for DK, SSB for NO, etc.) + Wikidata enrichment (website, employees, CEO, ticker, logo, Wikipedia URL). One call, multiple sources. Supports 15 countries (DK, NO, SE, FI...
Parameters* required
idstringNational company identifier — same format as lookup_company.
countrystringISO 3166-1 alpha-2 country code, lowercase.one of
dk · no · se · fi · ie · ukfr_historyFrench company history timeline. Returns one event per change to the company's name, activity (NAF code), status (active/closed), legal form, or social-economy flag, derived from INSEE Sirene 3.11's bitemporal periodesUniteLegale array. Includes 'initial:<field>' events that s...1 params
French company history timeline. Returns one event per change to the company's name, activity (NAF code), status (active/closed), legal form, or social-economy flag, derived from INSEE Sirene 3.11's bitemporal periodesUniteLegale array. Includes 'initial:<field>' events that s...
Parameters* required
sirenstring9-digit French SIREN number. Examples: 652014051 (Carrefour), 775670417 (LVMH). No spaces or punctuation.
list_endpointsDiscovery meta-tool. Lists ALL available Nordic Data API data endpoints (HTTP method, path, short description) by reading the backend's live OpenAPI spec at runtime — far beyond the curated high-level tools. Use this to discover capabilities the dedicated tools do not cover, t...1 params
Discovery meta-tool. Lists ALL available Nordic Data API data endpoints (HTTP method, path, short description) by reading the backend's live OpenAPI spec at runtime — far beyond the curated high-level tools. Use this to discover capabilities the dedicated tools do not cover, t...
Parameters* required
searchstringOptional case-insensitive keyword filter, matched against each endpoint's path, summary, and tags. Examples: 'sanction', 'address', 'cvr', 'history', 'vat', 'lei'. Omit to list every available data endpoint.
get_endpoint_schemaDiscovery meta-tool. Returns the full parameter and response schema for a single Nordic Data API endpoint (path + method), read from the backend's live OpenAPI spec with $refs resolved inline. Use after list_endpoints to learn exactly which parameters an endpoint takes before...2 params
Discovery meta-tool. Returns the full parameter and response schema for a single Nordic Data API endpoint (path + method), read from the backend's live OpenAPI spec with $refs resolved inline. Use after list_endpoints to learn exactly which parameters an endpoint takes before...
Parameters* required
pathstringEndpoint path from list_endpoints, e.g. '/api/company/{country}/{id}'. Concrete paths like '/api/company/dk/22756214' are also accepted.
methodstringHTTP method for the endpoint (e.g. GET, POST). Defaults to GET. Must be a method the endpoint actually defines.default: GET
call_endpointDiscovery meta-tool. Executes a real HTTP request against the Nordic Data API for any non-admin endpoint discovered via list_endpoints, and returns the response. Authenticates with the same scoped API key as the curated tools. Only HTTP methods declared in the spec for the giv...3 params
Discovery meta-tool. Executes a real HTTP request against the Nordic Data API for any non-admin endpoint discovered via list_endpoints, and returns the response. Authenticates with the same scoped API key as the curated tools. Only HTTP methods declared in the spec for the giv...
Parameters* required
pathstringConcrete endpoint path, e.g. '/api/company/dk/22756214'. Path templates with {placeholders} are also accepted when you supply the values in `params`.
methodstringHTTP method to use, e.g. GET or POST. Must be a method the endpoint actually supports (see get_endpoint_schema). Defaults to GET.default: GET
paramsobjectParameters for the call. Values whose keys match {placeholders} in the path are substituted into the path. Remaining values become query-string params for GET/DELETE, or the JSON request body for POST/PUT/PATCH.
Nordic Data MCP Server
A Model Context Protocol server that gives AI agents (Claude, Cursor, Claude Code, ChatGPT, Copilot, etc.) direct access to official European business data across 15 EU countries.
Look up companies, validate VAT numbers, run KYB reports, screen against sanctions lists, autocomplete addresses, and resolve LEI ownership — all from inside your AI assistant.
DK · NO · SE · FI · IE · UK · FR · DE · CZ · PL · LV · EE
NL and DE require a Starter+ subscription (free-tier API keys receive HTTP 402
upgrade_required). On paid tiers, NL calls cost 5x quota units and DE calls cost 3x; all other countries cost 1x.
Quick start
1. Get an API key
Sign up at addonnordic.com and grab your NORDIC_API_KEY. Free tier available.
2. Add to Claude Desktop
Edit ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%/Claude/claude_desktop_config.json (Windows):
{
"mcpServers": {
"nordic-data": {
"command": "npx",
"args": ["-y", "nordic-data-mcp"],
"env": {
"NORDIC_API_KEY": "YOUR_KEY_HERE"
}
}
}
}
Restart Claude Desktop. You should see "nordic-data" appear in the tools menu.
3. Add to Cursor
In Cursor settings → MCP → Add new server, or edit ~/.cursor/mcp.json:
{
"mcpServers": {
"nordic-data": {
"command": "npx",
"args": ["-y", "nordic-data-mcp"],
"env": {
"NORDIC_API_KEY": "YOUR_KEY_HERE"
}
}
}
}
4. Add to Claude Code
claude mcp add nordic-data --env NORDIC_API_KEY=YOUR_KEY_HERE -- npx -y nordic-data-mcp
5. Add to ChatGPT (Pro, Business, or Enterprise)
ChatGPT supports remote MCP servers as custom connectors. No API key needed from you — the hosted server handles upstream authentication.
- ChatGPT → Settings → Connectors → Add custom connector
- URL:
https://nordic-data-mcp-production.up.railway.app/mcp - Done — all 7 tools are available immediately.
Custom connectors require a ChatGPT Pro, Business, Team, or Enterprise plan.
6. Add to Claude.ai (web)
Same hosted endpoint, no local install:
- Claude.ai → Settings → Connectors → Add custom connector
- URL:
https://nordic-data-mcp-production.up.railway.app/mcp - Done.
Available tools
| Tool | What it does |
|---|---|
lookup_company | Basic company data from official registries (CVR, Brønnøysund, Bolagsverket, Companies House, INSEE, etc.) |
validate_vat | Validate a VAT number against VIES (EU) or HMRC (GB) |
screen_sanctions | Bulk screen up to 1000 names against UN/EU/OFAC/PEP lists (OpenSanctions, 768K+ entries) |
kyb_full | Master Know-Your-Business report — identity, persons, financials, LEI, VAT, sanctions, adverse media, risk score |
autocomplete_address | Address autocomplete via DAWA (DK), Kartverket (NO), BAN (FR), MML (FI), Nominatim (others) |
lookup_lei | GLEIF Legal Entity Identifier lookup — forward, reverse, and parent/children relationships |
company_enriched | Company data + geocoded address + industry stats + Wikidata (website, employees, CEO, ticker, logo) |
Example agent prompts
"Look up CVR 61056416 in Denmark" → calls
lookup_company { country: "dk", id: "61056416" }→ Carlsberg A/S
"Run a full KYB report on Equinor (NO 923609016)" → calls
kyb_full { country: "no", id: "923609016" }
"Is
LU26375245a valid VAT number?" → callsvalidate_vat { country: "LU", vat_number: "26375245" }
"Screen these names against sanctions: Vladimir Putin, Acme Corp, John Smith" → calls
screen_sanctions { names: [...] }
"Find the LEI for Tesco UK (00445790) and include parent and subsidiaries" → calls
lookup_lei { mode: "reverse", country: "uk", id: "00445790" }
Country / ID format reference
| Country | ID type | Format |
|---|---|---|
| DK | CVR | 8 digits |
| NO | Organisasjonsnummer | 9 digits |
| SE | Organisationsnummer | 10 digits (with or without dash) |
| FI | Y-tunnus | NNNNNNN-D (7 digits + check digit) |
| IE | CRO number | 1–7 digits |
| UK | Companies House | 8 chars (digits, or prefix like SC, NI, OC) |
| FR | SIREN | 9 digits |
| DE | LEI or HRB | LEI = 20 alphanum; HRB = prefix + digits |
| CZ | IČO | 8 digits |
| PL | NIP / REGON / KRS | NIP=10, REGON=9/14, KRS=10 |
| LV | Reģistrācijas nr. | 11 digits |
| EE | Registrikood | 8 digits |
For validate_vat, country codes are uppercase and cover the broader EU plus GB (use GB, not UK — HMRC requires GB).
Configuration
The only environment variable you need to set is:
| Variable | Required | Description |
|---|---|---|
NORDIC_API_KEY | yes | Your API key from addonnordic.com |
That's it. The MCP server connects to the hosted Nordic Data API for you.
Self-hosting (remote HTTP transport)
For remote MCP hosting (e.g. Anthropic Connectors, Smithery, web-based clients), deploy the bundled Streamable HTTP transport:
npm install
npm run build
NORDIC_API_KEY=sk_... npm run start:http # listens on :$PORT (default 3000)
Endpoints:
GET /healthz— health check (returns version + status)ALL /mcp— MCP Streamable HTTP endpoint (session-based viaMcp-Session-Idheader)
A railway.toml is included for one-click deploy on Railway:
- New Project → Deploy from GitHub repo → select
Mnymann/nordic-data-mcp - Set Root Directory to
nordic-data-mcp - Add env var
NORDIC_API_KEY - Railway auto-detects the config, builds, and exposes a public HTTPS URL
Design notes
- Thin adapter. No business logic, no caching, no transformations. Each tool maps 1:1 to a Nordic Data API endpoint.
- No PII in logs. Request and response bodies are never logged.
- API key required. The process refuses to start without
NORDIC_API_KEY. - Rate limiting and caching are handled upstream.
- Inputs are validated with zod before any HTTP call.
Contributing
Issues and PRs welcome at github.com/Mnymann/nordic-data-mcp.
Please do not include API keys, request bodies, or response payloads in bug reports.
License
MIT © AddonNordic ApS
Featured
Keep your Mac awake while Claude Code and 40+ AI agents run. Sleeps when they're idle.
One time payment $9 →Integrate web data into your AI product. One API to scrape website & brand data.
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Install now →On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
Start earning →Configuration
NORDIC_API_KEY*secretYour Nordic Data API key — get one at https://addonnordic.com (free tier: 100 lookups/day)
NORDIC_DEFAULT_COUNTRYOptional ISO 3166-1 alpha-2 country code (lowercase) to assume when a tool call omits the country argument. One of: dk, no, se, fi, ie, uk, fr, de, cz, pl, lv, ee, nl, be, lu.
NORDIC_VERBOSE_ERRORSOptional. Set to 'true' to include upstream HTTP status and request-id details in error messages. Useful for debugging.
Categories
Registryactive
Packagenordic-data-mcp
TransportSTDIO, HTTP
AuthRequired
UpdatedMay 31, 2026
