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90
MCP live MCP 2025-06-18 streamable-http

Dataset Join & Merge

io.github.nero-engine/dataset-join-merge

Join two lists of JSON rows on a key, like SQL or VLOOKUP: left, inner, full, anti joins, union.

Watch this dependency Share evidence report
Uptime
100.0%
5 direct probes · 30d
Response
432ms
last probe
Tools
2
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://dataset-join-merge.nerolabs.workers.dev/mcp
Score: 90/100
Handshake verified by our own probe.
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
2 tools, 0 resources, 0 prompts returned.
partial 3 or more catalogue items 0/10
2 items in total; 3 or more earns these points.
How to earn +10 points
Expose at least three tools, resources or prompts
Split a catch-all tool into focused ones, or publish your docs and templates as resources and prompts.
Docs →
pass Describes itself 10/10
96 characters; more than 30 earns these points.

Tools · 2

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 da…

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 …

How to use

Claude Desktop or claude.ai: add a custom connector (Customize → Connectors; on Team and Enterprise plans an owner adds it under Organization settings → Connectors) with this server URL: https://dataset-join-merge.nerolabs.workers.dev/mcp

Cursor or Cline: add to your MCP config:

{
  "mcpServers": {
    "dataset_join_\u0026_merge": {
      "url": "https://dataset-join-merge.nerolabs.workers.dev/mcp",
      "transport": "streamable-http"
    }
  }
}