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The Voltpath API provides read-only access to European electricity flow and day-ahead price data sourced from ENTSO-E. All endpoints are HTTP GET and return JSON, making them easy to integrate into dashboards, analytics pipelines, or trading tools.

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Base URL

All API endpoints are located under the /api/v1/ path. For example, the prices endpoint is accessible at https://api.voltpath.ai/api/v1/prices.

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Authentication

No authentication is required for the current API version. You can query all endpoints without an API key or token.

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Versioning

The current API version is v1, reflected in the URL path /api/v1/. Future versions will be introduced under a new path prefix (for example, /api/v2/). We recommend pinning integrations to a specific version.

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Endpoints

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Common parameters

Most endpoints share a set of query parameters for filtering and aggregation:
  • datetime_from and datetime_to — Filter the time range. Accept ISO 8601 timestamps or relative shorthand such as now, now-30d, now-1H, and now-15m. All values are interpreted as UTC. Defaults to now-30d to now. The response meta includes the resolved timestamps.
  • zone — Filter by bidding zone code (for example, DE, FR, NO2). Repeat the parameter to select multiple zones. Omit to return all zones. See Bidding Zones for supported codes.
  • border — Filter by border pair in the format ZONE_FROM->ZONE_TO, for example DE->FR. Not available on /prices, /ci-share, or /zone-import-export.
  • resolution — Control time aggregation: auto, native, 1H, 1D, or 1W. Defaults to auto. Use native to request unprocessed data. Not available on /flow-duration or /zone-import-export.
For full details on datetime formats and resolution behavior, see Response Format.

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Data provenance

Every response includes a meta.provenance field that indicates the origin of the data:
  • measured — Raw data from upstream ENTSO-E sources.
  • derived — Computed metrics such as flow classifications, correlations, and aggregations.
Additional meta fields include resolution, resolved_datetime_from, resolved_datetime_to, and upstream_sources.
Use the sidebar to navigate to individual endpoint pages. An interactive API playground lets you try every endpoint directly from this reference.