Estonian e-Business Register (RIK)

The Estonian e-Business Register (e-Äriregister) is the official commercial register of Estonia, operated by the Centre of Registers and Information Systems (Registrite ja Infosüsteemide Keskus, RIK). It publishes company, related-person, beneficial-owner, annual-report and pledge data as open data through a REST API (ar-rest.rik.ee, API-key/bearer token), sixteen X-Road style SOAP/XML services (ariregxmlv6.rik.ee, WSDL published, test environment demo-ariregxmlv6.rik.ee) and daily open data downloads in JSON, XML and CSV. Use requires a free contract with RIK, except the autocomplete and e-invoice recipient services.

Estonian e-Business Register (RIK) publishes 5 API contracts indexed on the APIs.io network, including Beneficial Owners API, Company API, Key Login API, and 2 more. Tagged areas include Company, Government, Business Registry, Open Data, and Estonia.

The Estonian e-Business Register (RIK) catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Estonian e-Business Register (RIK)’s developer surface includes sandbox, authentication, documentation, API reference, support, pricing, and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

47.2/100 developing Agent 30/100 agent ready Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

2 published contracts

Company Government Business Registry Open Data Estonia Beneficial Ownership SOAP KYB

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 47.2/100 · developing

Contract Quality 13.1 / 21

Developer Ergonomics 8.5 / 17

Access Clarity 7.6 / 17

Operational Transparency 3.2 / 11

Contract Governance 2.2 / 10

Discoverability 5.3 / 9

Regulatory Posture 2.2 / 15

Agent readiness — 30/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Government & Public Sector regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented) Ask about this →

8 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 44.7 — up to +11.1 composite points Ask about this →
Developer Ergonomics scores 50.0 — up to +10.0 composite points Ask about this →
Contract Quality scores 61.7 — up to +9.6 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/ariregister-rik-ee/apis.yml: open an issue on github.com/api-evangelist/ariregister-rik-ee to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 5

Individual APIs this provider publishes, each with its own machine-readable definition.

Open Data API (XML Services)

SOAP/XML open data services of the e-Business Register (X-Road producer namespace arireg.x-road.eu), delivering real-time register data; WSDL published for production and test e...

Estonian e-Business Register (RIK) Beneficial Owners API

The beneficialOwners API from Estonian e-Business Register (RIK) — 1 operation(s) for beneficialowners.

Estonian e-Business Register (RIK) Company API

The Company API from Estonian e-Business Register (RIK) — 7 operation(s) for company.

Estonian e-Business Register (RIK) Key Login API

The keyLogin API from Estonian e-Business Register (RIK) — 1 operation(s) for keylogin.

Estonian e-Business Register (RIK) Person API

The Person API from Estonian e-Business Register (RIK) — 2 operation(s) for person.

Estonian e-Business Register (RIK) API pricing

Prices published by Estonian e-Business Register (RIK).

Plan	Price
e-Business Register API services (contract)	When concluding the contract only for the use of the e-Business Register API services, the

Plan details, limits and sources →

Rate limits

Daily query answers per contract partner: Maximum number of query answers per contract partner: 50 000 pcs/day*
Simultaneous queries per contract partner: Maximum number of simultaneous queries per contract partner: 1 query
Document downloads per IP: An additional IP-based limit of 20 requests per minute applies when downloading documents

Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Estonian e-Business Register (RIK) Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Estonian e-Business Register (RIK) Rate Limits

3 limits

RATE LIMITS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Ariregister Rik Ee Context

72 classes · 262 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Estonian e-Business Register (RIK) API Rules

51 rules · 42 error-severity 6 warn-severity 3 info-severity

SPECTRAL

JSON Schema 6

Standalone JSON Schema definitions for this provider's data models.

BeneficialOwnersResponse

5 properties

JSON SCHEMA

CompanyCommercialPledgeDataResponse

5 properties

JSON SCHEMA

CompanyDetailDataResponse

9 properties

JSON SCHEMA

CompanyGeneralDataResponse

5 properties

JSON SCHEMA

CompanyRelatedPersonsResponse

5 properties

JSON SCHEMA

ReportResponse

2 properties

JSON SCHEMA

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Estonian e-Business Register (RIK) Authentication

http · 1 scheme

SECURITY

Estonian e-Business Register (RIK) Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

Recommended x-agentic-access execution contracts for AI agents.

Estonian e-Business Register (RIK) Agentic Access

11 operations

11 operations · 0 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

Sandbox

Sandbox

DeveloperPortal

DeveloperPortal

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conventions

ErrorCatalog

Conformance

Scroll for all 7

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

RateLimits

RateLimits

Support

Support

Commercial 3

Pricing, plans, and the legal terms of use

Plans

Plans

Pricing

Pricing

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: ariregister-rik-ee
name: Estonian e-Business Register (RIK)
description: The Estonian e-Business Register (e-Äriregister) is the official commercial register of Estonia, operated by
  the Centre of Registers and Information Systems (Registrite ja Infosüsteemide Keskus, RIK). It publishes company, related-person,
  beneficial-owner, annual-report and pledge data as open data through a REST API (ar-rest.rik.ee, API-key/bearer token),
  sixteen X-Road style SOAP/XML services (ariregxmlv6.rik.ee, WSDL published, test environment demo-ariregxmlv6.rik.ee) and
  daily open data downloads in JSON, XML and CSV. Use requires a free contract with RIK, except the autocomplete and e-invoice
  recipient services.
url: https://artifacts.apis.io/ariregister-rik-ee/apis.yml
x-type: company
x-source: harvest:eu-gov-keynote-2026-11-10
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-11 (local-v6; was harvest)
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  - sandbox
  generated: '2026-11-13'
  method: derived
specificationVersion: '0.20'
created: '2026-11-11'
modified: '2026-11-11'
tags:
- Company
- Government
- Business Registry
- Open Data
- Estonia
- Beneficial Ownership
- SOAP
- KYB
tags_raw:
- Company
- Government
- Business Registry
- Open Data
- Estonia
- Beneficial Ownership
- SOAP
- Know Your Business
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/ariregister-rik-ee-agentic-access.yml
- type: RateLimits
  url: rate-limits/ariregister-rik-ee-rate-limits.yml
- type: Plans
  url: plans/ariregister-rik-ee-plans-pricing.yml
- type: Spectral
  url: rules/ariregister-rik-ee-rules.yml
- type: JSONLD
  url: json-ld/ariregister-rik-ee-context.jsonld
- type: Vocabulary
  url: vocabulary/ariregister-rik-ee-vocabulary.yml
- type: DataModel
  url: data-model/ariregister-rik-ee-data-model.yml
- type: Conventions
  url: conventions/ariregister-rik-ee-conventions.yml
- type: Sandbox
  url: sandbox/ariregister-rik-ee-sandbox.yml
- type: ErrorCatalog
  url: errors/ariregister-rik-ee-problem-types.yml
- type: Conformance
  url: conformance/ariregister-rik-ee-conformance.yml
- type: Hosts
  url: hosts/ariregister-rik-ee-hosts.yml
- type: Vendors
  url: vendors/ariregister-rik-ee-vendors.yml
- type: Authentication
  url: authentication/ariregister-rik-ee-authentication.yml
- type: DomainSecurity
  url: security/ariregister-rik-ee-domain-security.yml
- type: Website
  url: https://ariregister.rik.ee/eng
- type: DeveloperPortal
  url: https://avaandmed.ariregister.rik.ee/en
- type: Documentation
  url: https://avaandmed.ariregister.rik.ee/en/open-data-api/introduction-api-services
- type: APIReference
  url: https://ar-rest.rik.ee/docs
- type: Support
  url: https://abiinfo.rik.ee/index.php/en
- type: Login
  url: https://ariregister.rik.ee/auth/aup?lang=eng
- type: Pricing
  url: https://ariregister.rik.ee/eng/pricelist
- type: PrivacyPolicy
  url: https://ariregister.rik.ee/eng/dataprotection
apis:
- aid: ariregister-rik-ee:xml-services
  name: Open Data API (XML Services)
  description: SOAP/XML open data services of the e-Business Register (X-Road producer namespace arireg.x-road.eu), delivering
    real-time register data; WSDL published for production and test environments.
  humanURL: https://avaandmed.ariregister.rik.ee/en/open-data-api/introduction-api-services
  baseURL: https://ariregxmlv6.rik.ee
  tags:
  - SOAP
  - Open Data
  - XML
  properties:
  - type: WSDL
    url: wsdl/ariregister-rik-ee-ariregxmlv6.wsdl
  - type: WSDL
    name: WSDL (provider-hosted)
    url: https://ariregxmlv6.rik.ee/?wsdl
- aid: ariregister-rik-ee:ariregister-rik-ee-beneficialowners-api
  name: Estonian e-Business Register (RIK) Beneficial Owners API
  description: The beneficialOwners API from Estonian e-Business Register (RIK) — 1 operation(s) for beneficialowners.
  humanURL: https://avaandmed.ariregister.rik.ee/en/business-registry-rest-api/company-general-data
  baseURL: https://ar-rest.rik.ee
  tags:
  - Beneficial Owners
  tags_raw:
  - beneficialOwners
  properties:
  - type: OpenAPI
    url: openapi/ariregister-rik-ee-beneficialowners-api-openapi.yml
  - type: Documentation
    url: https://ar-rest.rik.ee/docs
- aid: ariregister-rik-ee:ariregister-rik-ee-company-api
  name: Estonian e-Business Register (RIK) Company API
  description: The Company API from Estonian e-Business Register (RIK) — 7 operation(s) for company.
  humanURL: https://avaandmed.ariregister.rik.ee/en/business-registry-rest-api/company-general-data
  baseURL: https://ar-rest.rik.ee
  tags:
  - Company
  properties:
  - type: OpenAPI
    url: openapi/ariregister-rik-ee-company-api-openapi.yml
  - type: Documentation
    url: https://ar-rest.rik.ee/docs
  - type: JSONSchema
    url: json-schema/ariregister-rik-ee-company-detail-data-response-schema.json
  - type: JSONSchema
    url: json-schema/ariregister-rik-ee-beneficial-owners-response-schema.json
  - type: JSONSchema
    url: json-schema/ariregister-rik-ee-company-commercial-pledge-data-response-schema.json
  - type: JSONSchema
    url: json-schema/ariregister-rik-ee-company-related-persons-response-schema.json
  - type: JSONSchema
    url: json-schema/ariregister-rik-ee-company-general-data-response-schema.json
  - type: JSONSchema
    url: json-schema/ariregister-rik-ee-report-response-schema.json
- aid: ariregister-rik-ee:ariregister-rik-ee-keylogin-api
  name: Estonian e-Business Register (RIK) Key Login API
  description: The keyLogin API from Estonian e-Business Register (RIK) — 1 operation(s) for keylogin.
  humanURL: https://avaandmed.ariregister.rik.ee/en/business-registry-rest-api/company-general-data
  baseURL: https://ar-rest.rik.ee
  tags: []
  tags_raw:
  - keyLogin
  properties:
  - type: OpenAPI
    url: openapi/ariregister-rik-ee-keylogin-api-openapi.yml
  - type: Documentation
    url: https://ar-rest.rik.ee/docs
- aid: ariregister-rik-ee:ariregister-rik-ee-person-api
  name: Estonian e-Business Register (RIK) Person API
  description: The Person API from Estonian e-Business Register (RIK) — 2 operation(s) for person.
  humanURL: https://avaandmed.ariregister.rik.ee/en/business-registry-rest-api/company-general-data
  baseURL: https://ar-rest.rik.ee
  tags:
  - Persons
  tags_raw:
  - Person
  properties:
  - type: OpenAPI
    url: openapi/ariregister-rik-ee-person-api-openapi.yml
  - type: Documentation
    url: https://ar-rest.rik.ee/docs
x-enrichment:
  date: '2026-11-11'
  status: enriched
  artifacts_added: 12
  pass: local-v6

Estonian e-Business Register (RIK) API — frequently asked questions

Does Estonian e-Business Register (RIK) have an API?

Yes. APIs.io lists 5 APIs from Estonian e-Business Register (RIK), including Open Data API (XML Services), Estonian e-Business Register (RIK) Beneficial Owners API and Estonian e-Business Register (RIK) Company API, and 2 more.

Is there an OpenAPI specification for the Estonian e-Business Register (RIK) API?

Yes. APIs.io indexes 4 OpenAPI specifications for Estonian e-Business Register (RIK), each linked for download from this page.

How do I authenticate with the Estonian e-Business Register (RIK) API?

Estonian e-Business Register (RIK) uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Estonian e-Business Register (RIK) Authentication.

How much does the Estonian e-Business Register (RIK) API cost?

Estonian e-Business Register (RIK) publishes its prices; its e-Business Register API services (contract) plan is When concluding the contract only for the use of the e-Business Register API services, the as of 2026-11-11. APIs.io lists 1 pricing plan for Estonian e-Business Register (RIK), with each plan's price, limits and inclusions under Pricing on this page.

Is the Estonian e-Business Register (RIK) API ready for AI agents?

Estonian e-Business Register (RIK) has a Kin Score of 47.2 out of 100 (developing) and an Agent Readiness score of 29.6 (agent-ready), scored by API Evangelist on 2026-11-13.

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