openalex_mcp_group_by – 1 MCP server offers this tool
What it usually takes
dimension– in 1 of 1entity– in 1 of 1filters– in 1 of 1include_unknown– in 1 of 1max_groups– in 1 of 1query– in 1 of 1
No server marks it as only reading: treat it as able to change data.
From each publisher's own tool list. We never call a tool.
Servers
| Server | Inputs | Read-only? |
|---|---|---|
OpenAlex MCP Demo co.huggingface.geraldine/openalex-mcp Count along a dimension without retrieving any record. Answers "how many", "which are the top" and "how has it evolved" in one call, at the price of a single request whatever the size of the set being aggregated — the cheapest way to frame a corpus before walking it. Returns its own shape, not the record envelope: this tool returns no records. Returns: {"source": "openalex", "command": "group_by", "entity": str, "dimension": str, "query_used": str | null, "filters_used": str | null, "total_found": int | null, "groups_count": int | null, "groups": [{"key": str, "key_url": str | null, "key_display_name": str | null, "count": int}], "oql": str | null, "cost_usd": float | null, "error": str | null} | dimension,entity,filters,include_unknown,max_groups,query | Not stated |