MCP terms of use
These terms cover free use of the Ärikratt MCP server. The website is free as well.
Effective 2026-10-13. Estonian law applies.
1. The service is free
The MCP is free. An account has one personal API key. The free quota is 2,000 successful calls a month and 200 a day. There is no charge.
2. The source licence still applies
The underlying public data remains under its source licence and may be reused under that licence. CC BY 4.0: Business Register open data (Centre of Registers and Information Systems) and Estonian Environment Agency air-pollution reports. CC BY-SA 3.0: Tax and Customs Board taxes paid, turnover and employee count, and the legal-person tax-debtor list; the public procurement register; EU structural assistance; the economic-activity register; Patent Office public data; the Building Register; Unemployment Insurance Fund registered unemployed. CC BY-SA 4.0: Statistics Estonia datasets, official announcements and legal acts published in Riigi Teataja. Statistics Estonia attribution: “Source: Statistics Estonia, open data, CC BY-SA 4.0; calculations by Ärikratt”. CC0 1.0: the state real-estate register and the Land and Spatial Development Board EHAK WFS variants. EHAK administrative boundaries are open data with the required attribution “Haldus- ja asustusjaotus: Maa- ja Ruumiamet <kuupäev>”. The state-aid register, Eesti Pank, and KOTKAS permits are not in the open-data catalogue: Public Information Act § 3¹(9), open data is as a rule made available for reuse without conditions, with attribution. Unemployment Insurance Fund vacancy statistics are CC BY-NC 3.0 and are left out of the service and the website. An output derived from a BY-SA source is provided under that same BY-SA licence, and the attribution must be kept. Ärikratt’s own compilation and software are not under BY-SA.
European Commission; CC BY 4.0; extract selected and formatted by R-53 OÜ. Contains public sector information licensed under the Open Government Licence v3.0. OFAC: US Government list facts; 17 USC §105. Ärikratt is not an official service of the list publisher.
3. The key and fair use
The key is personal and cannot be transferred. Free keys do not expire; access ends when a key is revoked. Fair-use caps apply, including up to 500 distinct companies a day. A limit on sharing an account or scraping this service restricts use of the service, not the licensed data.
4. Personal data
Personal data is processed as described in the privacy notice (/en/privacy). Company pages publish register data and only organisational contacts.
S1 covers only direct company entries in the EU, UK and OFAC lists where the source’s own registration identifier exactly matches the company’s Estonian registry code. Sole traders, natural persons, T2/T5, ownership and succession ties are excluded.
5. Dated snapshots, not the register
Figures are dated snapshots, not the official register and not a live balance. EMTA tax and turnover figures are a quarterly or daily snapshot. Average pay must not be inferred from EMTA labour taxes and headcount. The service is not legal advice and not credit advice.
Official list entry. [List name], entry [ID], as of [source date/time]: “[unaltered extract containing the company name and Estonian registry code]”. Official source: [URL]. Source copy captured by R-53 OÜ [time]: [URL]. This describes the list entry; restrictions on a particular transaction depend on applicable law. This is not legal advice. Ärikratt is not an official service of the list publisher. Corrections: arikratt@r-53.com.
6. Governing law
Estonian law governs these terms.
7. Liability
The service is free. It provides a dated snapshot of public register data and is not the official register, legal advice or credit advice. We do not warrant that the data is complete or current or that the service runs without interruption. The person who makes a decision based on a snapshot is responsible for that decision. If you use the service in your business or profession, R-53 OÜ is not liable for indirect loss, including lost profit, loss of data, or loss arising from a decision made on a snapshot. This clause does not limit a consumer's statutory rights. No limitation applies to damage caused intentionally or by gross negligence, or to injury to life, body or health.
These limitations do not remove R-53 OÜ’s responsibility as publisher, its duty to correct information, or third parties’ statutory claims.
We examine reports without delay. We correct an identified error or remove it without undue delay, no later than 24 hours after identification; where necessary, we publish a correction notice. We restrict display while a substantiated accuracy dispute is being resolved. arikratt@r-53.com
8. Prohibited use
You must not use the service, or data obtained from it, to identify or re-identify a natural person. This includes combining shared-board links with other data to find out who a person is or which organisations they belong to. You must not use the service to build profiles of natural persons, to monitor them or to make decisions about them. If you process personal data obtained from the service, you are the controller of that processing. We may revoke a key immediately if this clause is breached.
Check the original source before an important decision.