Estonian figures differ from source to source. The widely repeated factsheet numbers, “1,500 organizations / 600 million a year,” date from 2019. Nortal's analysis counted 3.87 billion requests over 182 days in the public logs (~21 million a day) — not an official RIA figure.
Governance
EE (production), ee-test, ee-dev.Becoming a member
Sign the membership agreement with a digital signature in the x-tee.ee self-service portal.
Install your own or use a hosting provider's.
Agree on access rights with each service provider.
Connect your own system to the Security Server.
Results
Most of the data flows behind the digital services citizens actually use pass through X-tee.
Banks, hospitals and schools get citizen data directly from the source registry, signed.
Pre-filled tax returns — employer and bank data are pulled in over X-tee.
E-prescriptions and doctors' notes move between registries. (Cross-border e-prescriptions are not X-Road but the EU's MyHealth@EU.)
Company records and ownership data sync automatically with other registries.
The two countries' layers were connected on 2018-02-07. At the time, X-tee had ~1,000 organizations and Suomi.fi had 81.
2017: 820+ years saved per year (from a 5% sample); 2020: 1,100+ years. Figures vary by source.
Lessons for Mongolia
A legal basis that makes the layer mandatory, with the operator's rights and duties spelled out. It makes the system survive changes of government.
Record in one place which systems, data and services exist. Before connecting, Ukraine audited 573 systems.
Member organizations bear the costs, while the benefits accrue nationally. So the layer itself is free, and hosting is optional.