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European Financial Data
Data and account

Authentication

Create, use, rotate, and revoke your account API keys.

Create a key

Sign in and open API keys in your dashboard. Give each integration a named key so you can identify and revoke it independently.

The full key is shown only when it is created. Save it in a private environment variable or your client’s secret configuration.

Authenticate requests

Set the bearer authorization header in your MCP client’s private configuration.

Authorization header
Authorization: Bearer <your-account-api-key>

See MCP client setup for client-specific examples. The REST API uses the same bearer header and also accepts X-API-KEY.

Rotate and revoke

Create a replacement key, update your integration, and revoke the old key in the dashboard. Revocation blocks the next data request or MCP tool call, including calls from an existing connection.

A missing or invalid key returns 401. A suspended or closed account cannot access data. Temporary authorization service failures return 503.

Creating another key does not add another allowance. All of your keys share the same account usage.

European Financial Data · Developer documentation