eia-energy-mcp-server

Use the `eia_*` tools for U.S. Energy Information Administration (EIA) API v2 energy data. Requires an `EIA_API_KEY`. Routes use path identifiers (e.g. `electricity`, `petroleum/pri`); leading, trailing, and doubled slashes are stripped, so an EIA-doc spelling resolves the same way. Workflow: `eia_search_routes` or `eia_browse_routes` to find a leaf route → `eia_describe_route` for its facets and columns → `eia_query_route` with facet-ID filters. Facet values come only from describe, not route metadata, so describe before querying. Values arrive as strings. `eia_query_route` returns a preview and stages nothing by default; pass `stage: true` to also stage the matching rows as a DataCanvas table named by the `dataset` field, queried via SQL with `eia_dataframe_query`. Every dataset a tenant stages shares one canvas, so tables from different routes cross-join by name. The dataframe tools are listed only where a canvas is configured.