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Dataset Diff & Change Detector MCP Server

by nero-engine Your server? Claim it
answering

Dataset Diff & Change Detector is answering right now. Last checked 3 min ago. It exposes 2 tools. Last commit 13 Sep 2026.

Compare two versions of a JSON row list: what was added, removed or changed, field by field.

Uptime history 6 days of history
6 days agonow
100.0%
Uptime 24h
92 of 92 checks
2
Tools
read from the server
83 ms
Response time
average over 24h
0
Stars
last commit 13 Sep 2026

Nothing serious here today

Today is the operative word: we check Dataset Diff & Change Detector every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 3 min ago.

run in your terminal
claude mcp add dataset-diff-detector --transport http https://dataset-diff-detector.nerolabs.workers.dev/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "dataset-diff-detector": {
      "url": "https://dataset-diff-detector.nerolabs.workers.dev/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.dataset-diff-detector]
url = "https://dataset-diff-detector.nerolabs.workers.dev/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "dataset-diff-detector": {
      "url": "https://dataset-diff-detector.nerolabs.workers.dev/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "dataset-diff-detector": {
      "url": "https://dataset-diff-detector.nerolabs.workers.dev/mcp"
    }
  }
}

Available tools 2

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

capabilities
list_capabilities
Returns the exact matching and comparison rules diff_rows uses, the shape and order of its output rows, and the maximum rows per call. Call this first if you are unsure how values are compared. Free, processes no data.
diff
diff_rows
Compares two versions of the same list of JSON rows (a before and an after snapshot, such as yesterday's and today's price list, product feed or CRM export) and returns one row per difference: status added, removed or changed, the key, the old and new values, and changedFields naming exactly which fields moved. Set keyFields to the field(s) that identify a row (sku, id, email); without it rows match on full content and an edited row shows as removed plus added. Comparison is exact: "19.99" (text) and 19.99 (a number) differ, as do "Blue" and "blue " and null and a missing field; nested objects compare by value. Put always-changing fields such as timestamps in ignoreFields. The summary counts added, removed, changed and unchanged rows and warns about duplicate keys, rows missing a key, and field names found in no row. oldRows and newRows together are limited per call (list_capabilities gives the number); larger calls are refused with a message saying how to split them.

Endpoints

URLTransportStateLatencyChecked
https://dataset-diff-detector.nerolabs.workers.dev/mcp streamable-http answering 89 ms 3 min ago

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Dataset Diff & Change Detector — questions

Answers built from our own checks of this server.

What can Dataset Diff & Change Detector do?
It exposes 2 tools, read directly from the server on our last check. Among them: diff_rows, list_capabilities. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Dataset Diff & Change Detector working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 83 ms. The bar chart above shows every period we have measured.
How do I connect Dataset Diff & Change Detector?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Dataset Diff & Change Detector need an API key?
No. Dataset Diff & Change Detector completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 2 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Dataset Diff & Change Detector?
It answers our handshake in 83 ms on average, which is faster than 85% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Dataset Diff & Change Detector open source?
We cannot say either way: 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.