Dataset Join & Merge

Connect Remote server

claude mcp add --transport http dataset-join-merge https://dataset-join-merge.nerolabs.workers.dev/mcp

{
  "mcpServers": {
    "dataset-join-merge": {
      "url": "https://dataset-join-merge.nerolabs.workers.dev/mcp"
    }
  }
}

{
  "servers": {
    "dataset-join-merge": {
      "type": "http",
      "url": "https://dataset-join-merge.nerolabs.workers.dev/mcp"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://dataset-join-merge.nerolabs.workers.dev/mcp

Tools 2 found in our last check

• list_capabilities

  Returns every join type, key matching mode, conflict strategy and fan-out mode this server supports, the fields it adds to each row, and the input and output row limits per call. Free, processes no data.

• join_rows

  Joins two lists of JSON rows on a shared key, like a SQL join or a spreadsheet VLOOKUP, and returns the combined rows plus a summary: how many rows matched on each side, match rates, and warnings for duplicate keys, rows missing the key and key fields that exist on no row. Use i…

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