> ## Documentation Index
> Fetch the complete documentation index at: https://docs.yapily.com/llms.txt
> Use this file to discover all available pages before exploring further.

# European Prerequisites

> European PSD2 prerequisites for regulated AISPs and PISPs using Yapily. Covers eIDAS certificate setup, national competent authority registration, and QWAC configuration.

## Obtaining eIDAS Certificates

For registrations that will be used to connect to any \`Institution\` in Europe, you will need to obtain [eIDAS](https://ico.org.uk/for-organisations/guide-to-eidas/what-is-the-eidas-regulation/) certificates which will be used to identify yourself as a verified AISP and/or PISP. The certificates are otherwise known as the *QWAC* and *QSEAL* certificate types and can be obtained by Qualified Trust Service Providers (QTSPs) within Europe.

See the list of [Trusted QTSPs](https://webgate.ec.europa.eu/tl-browser/#/search/type/1) in your desired countries by checking "Qualified certificate for electronic seal" and "Qualified certificate for website authentication".

<Warning>
  Be aware that the issuing of these certificates do come at a financial cost.
</Warning>

## Naming your eIDAS certificates

Before you upload your [eIDAS certificates to the Yapily Console](/getting-started/integration-setup/registration#2-upload-certificates), use the following naming convention to better identify your certificates:

\`\`\`shell
\[cert-type].\[company-name].\[cert-identifier].\[file-extension]
\`\`\`

You should end up with the following four files:

\`\`\`shell
qwac.\[company-name].\[cert-identifier].key
qwac.\[company-name].\[cert-identifier].pem
qseal.\[company-name].\[cert-identifier].key
qseal.\[company-name].\[cert-identifier].pem
\`\`\`

***

Back to [registration](/getting-started/integration-setup/registration)