The verification layer for Norwegian companies
Machine-verifiable Norwegian company authority.
Apier resolves a Norwegian company's status, roles and coded signing authority into machine-readable answers, each stamped with its source and verification date. One integration reaches Brønnøysund, Altinn, Skatteetaten and Maskinporten.
Apier makes Norwegian companies and their signing authority verifiable by machines - with source provenance, historical state, and portable proof.
- LIVECompany status, roles and coded signing authority
- GATEDWrite operations (sandbox + dry-run)
- PLANNEDHistorical state and portable proof
- @apier-no/mcp on npm
- no.apier/mcp on the official MCP registry
- 26 callable MCP tools
Verify a company, live
Live lookups against the real Norwegian Company Register (Enhetsregisteret) for a few well-known companies. No API key, no signup.
Try a well-known company
Live data, no API key, no signup. Every keyless endpoint is runnable the same way in the sandbox, or wired straight into an automation, as in the n8n walkthrough.
The problem
The Norwegian government APIs are free. The integration isn't.
The cost is the execution layer on top of them, and the one thing you cannot buy your way around: write-side accreditation.
Authorization complexity
Maskinporten, system users, and per-scope delegation are a multi-step setup before your first successful call, and the tokens expire. Doing it yourself means owning that ceremony, and its failure modes, for every customer you onboard.
Missing obligation logic
The APIs return data, not answers. They won't tell you which filings a company owes, or when. That mapping lives in regulation, changes over time, and is yours to build and keep current if you wire up the endpoints directly.
No execution safety
A raw integration will happily fire a malformed or duplicate filing. There's no dry-run, no idempotency, and no record of what an agent actually did. That record is exactly what you need when it's acting on a client's behalf.
Maskinporten JWT signing & token exchange
- Direct
- You build it
- Apier
- Included
Delegation handling
- Direct
- You build it
- Apier
- Included
Audit logging
- Direct
- You build it
- Apier
- Included
Regulatory change maintenance
- Direct
- Ongoing burden
- Apier
- Handled
Government write access (Altinn / Skatteetaten)
- Direct
- Requires a Norwegian legal entity, a production Maskinporten client and scope approvals
- Apier
- Read side live; binding government submission in production not yet available
| Capability | Build directly | With Apier |
|---|---|---|
| Maskinporten JWT signing & token exchange | You build it | Included |
| Delegation handling | You build it | Included |
| Audit logging | You build it | Included |
| Regulatory change maintenance | Ongoing burden | Handled |
| Government write access (Altinn / Skatteetaten) | Requires a Norwegian legal entity, a production Maskinporten client and scope approvals | Read side live; binding government submission in production not yet available |
Architecture
How the call flows
You
Your software
AI agent, accounting platform, or internal tool. One API key.
Apier · execution layer
- AuthenticationMaskinporten token exchange
- DelegationAltinn system users
- Audit trailimmutable receipts
- Compliancedeterministic state
- Rulebookversioned legal rules
Norwegian government
- Altinn 3filings & delegation
- Brønnøysundcompany registry
- SkatteetatenStatus: GATEDtax filings
- Maskinportenmachine identity
Solutions
What you can build
Four live solutions, each chaining several endpoints into one regulated answer your agent or platform can act on.
Obligations + Deadlines
What a company must file, and when: derived from its roles and registrations by the versioned Rulebook, every deadline computed in Oslo time. One call replaces a hard-coded compliance calendar, which is what makes this the read-side flagship.
Company Verification
One verdict on whether a company is real, active and safe to act for, drawn from Brønnøysund status, bankruptcy, dissolution, signing authority and filed accounts, before you onboard or transact.
Signature + Authority
Signaturrett, prokura and combination rules resolved into a clear acting-capacity answer, so you know who is allowed to sign for a company before any binding action is attempted.
Annual Accounts Monitor
Know the moment a company files new annual accounts. A monitored baseline emits a signed change event your platform can act on, with no daily polling and no missed filing.
- AI agent developers: autonomous agents that must verify Norwegian company authority before they act.
- Accounting software: Tripletex, Fiken, PowerOffice and every entrant that wants company authority as an API.
- Regnskapsbyrå: accounting firms that need to know who can sign for a client company, from one call, with a source and date on every answer.
- Operations teams inside AS / NUF: internal agents that need to know what's due, what's authorized, and what was submitted.
Execution guarantees
Safe by design
Every call an agent makes through Apier is recorded as it runs: the request, the authority it acted under, and the government's response, in an append-only audit log that can be added to but never edited. The full accountability story, including how a filing is reconstructed months later, lives on the trust & transparency page.
Start building
Hit the live API from your terminal. No key, no account.
curl -sS 'https://www.apier.no/api/v1/tools/altinn-migration' | jq .Free during beta — no credit card required. See pricing for the tiers.