Norway Company Check — connector documentation

MCP endpoint: https://no-company-check.connectorbay.com/mcp
REST API: POST https://no-company-check.connectorbay.com/v1/tools/{tool_name}, described by the OpenAPI 3.1 spec at https://no-company-check.connectorbay.com/openapi.json
Transport: Streamable HTTP, stateless, MCP specification 2025-06-18 or later
Authentication: none required. An optional Authorization: Bearer <key> raises rate limits.
Health: https://no-company-check.connectorbay.com/health · Tool schemas: https://no-company-check.connectorbay.com/tools.json
Publisher: Unify Dynamics LLC · connectorbay.com/no-company-check · agent@connectorbay.com

What Norway Company Check is for

Norway Company Check reads the Bronnoysund Register Centre's open Enhetsregisteret API (no key needed). It validates a Norwegian organisation number offline (nine digits, modulus-11 check digit), fetches a legal entity or a sub-unit with its organisation form, status flags (bankruptcy, liquidation, compulsory liquidation, deletion date), industry code, registered number of employees, registration dates and whether it is in the VAT register, searches by name with filters and paging that respects the register's 10,000-row window, lists what was added, changed or deleted since a timestamp for a supplier watch, explains the nightly bulk files, and builds a compact due-diligence summary that names the fields used and the retrieval date. Sole proprietorships (ENK) are reported without name and address because they identify a person; role holders and personal data are not used. Read-only: nothing is stored. Data: Bronnoysund Register Centre; published under the Norwegian Licence for Open Government Data (NLOD 2.0), which two Register Centre pages name; the attribution is carried in every answer and the data is changed (fields selected, renamed, names withheld). General information only; independent of and not affiliated with the Bronnoysund Register Centre or any government body.

Ask your assistant things like:

"Is this Norwegian organisation number on the invoice correctly formed, or a typo?"
"What does the Norwegian register say about organisation number 974760673?"
"Find Norwegian companies with a given word in the name in municipality 1813."
"Which Norwegian entities changed in the register since Monday morning?"
"Is there a full download of the Norwegian entity register and how often does it refresh?"

What it does

validate_orgnr: Check the format and modulus-11 check digit of a Norwegian organisation number offline.
get_entity: Fetch one Norwegian legal entity by organisation number: form, status flags, industry, employees, VAT-register flag.
get_subunit: Fetch one Norwegian sub-unit (underenhet, a business location) by organisation number with its parent entity.
search_entities: Search Norwegian legal entities by name with optional filters on form, industry, municipality, employees and bankruptcy, with paging.
updates_since: List entities or sub-units that were added, changed or deleted since a timestamp, for a supplier watch.
bulk_file_info: Describe the nightly bulk files of the register (JSON, CSV, XLSX), their addresses and when they refresh.
kyb_summary: Compact know-your-business summary of one Norwegian entity with the fields used and the retrieval date.

Data sources

Reference data from official sources (brreg.no, data.brreg.no); every answer states its source, date and validity period.

What it is not

Norway Company Check is independent; not affiliated with, endorsed by or operated by any government body, central bank, standards body or scheme operator. Names of rails, schemes and standards are used only to say what a tool works with. It is read-only: it never sends, pays, files or signs anything for you, and it never looks up private individuals.

Not advice. General information only, not legal, tax, accounting or payment advice. Norway Company Check is an independent tool: it is not affiliated with, endorsed by or operated by any government body, central bank, standards body or scheme operator. Rates, thresholds and rules change; check the cited official source and confirm with a qualified professional before you rely on a result.

Built for: Norway. Languages: English.

Tools

Look up & validate

validate_orgnr — Check the format and modulus-11 check digit of a Norwegian organisation number offline. Use for "Is this Norwegian organisation number on the invoice correctly formed, or a typo?". Args: orgnr.

get_entity — Fetch one Norwegian legal entity by organisation number: form, status flags, industry, employees, VAT-register flag. Use for "What does the Norwegian register say about organisation number 974760673?". Args: orgnr.

get_subunit — Fetch one Norwegian sub-unit (underenhet, a business location) by organisation number with its parent entity. Use for "Which parent does this Norwegian sub-unit number belong to, and what is its industry code?". Args: orgnr.

search_entities — Search Norwegian legal entities by name with optional filters on form, industry, municipality, employees and bankruptcy, with paging. Use for "Find Norwegian companies with the word Havbruk in the name in municipality 1813.". Args: company_name, organisation_form, industry_code, municipality_number, min_employees, max_employees, bankrupt, page, size.

Reference & guides

updates_since — List entities or sub-units that were added, changed or deleted since a timestamp, for a supplier watch. Use for "Which Norwegian entities changed in the register since Monday morning?". Args: since, kind, page, size.

bulk_file_info — Describe the nightly bulk files of the register (JSON, CSV, XLSX), their addresses and when they refresh. Use for "Is there a full download of the Norwegian entity register and how often does it refresh?".

kyb_summary — Compact know-your-business summary of one Norwegian entity with the fields used and the retrieval date. Use for "Give me a short due-diligence summary of Norwegian organisation number 974760673.". Args: orgnr.

Conventions

Read-only. Every tool reads public data or computes; nothing is written anywhere and nothing about the user is stored.
Result envelope. ok: true with data, or ok: false with a structured error (bad_input, not_found, upstream_error). degraded lists optional sources that were unreachable.
Rate limits. Free tier 60 tool calls/minute and 300/day per user (keyed on the user identifier supplied by the host agent, else client IP); Pro keys raise this. Over-limit calls return HTTP 429 with Retry-After. initialize and tools/list are never counted.

Support

agent@connectorbay.com · connectorbay.com/no-company-check/support