Mmcp.market

Dataset Diff & Change Detector MCP server

by Nero-Engine·io.github.Nero-Engine/dataset-diff-detector·v0.1.0
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Compare two versions of a JSON row list: what was added, removed or changed, field by field.

B79/100grade B
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Safety scan
B79/100

full report

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If you have run it, two minutes of your experience saves the next person an afternoon.

Dataset Diff & Change Detector tools (2, 1 write)

write = sends, deletes, buys or posts
  • diff_rowsFree

    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.

  • list_capabilitieswrite actionFree

    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.

Public scan report

scanner v0.1.3 · 2026-09-19 · same rubric, same numbers if you re-run it

1 high
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 306ms20/20
  • Tool poisoning2 tool descriptions checked15/15
  • Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
  • Maintenancelast push 7 days ago15/15
  • Maintainer identityregistry namespace matches repository owner6/10

Findings (1)

  • highWrite-action tools reachable without authenticationauth.open-write
Overall 79/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

Install directly

claude mcp add --transport http dataset-diff-detector https://dataset-diff-detector.nerolabs.workers.dev/mcp
Add to Cursor

Dataset Diff & Change Detector: common questions

Is Dataset Diff & Change Detector MCP server safe?
Mostly: it is graded B (79/100). Read the Dataset Diff & Change Detector safety report
How do I install Dataset Diff & Change Detector?
It runs remotely at dataset-diff-detector.nerolabs.workers.dev. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Dataset Diff & Change Detector need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Dataset Diff & Change Detector maintained?
The last commit was 7 days ago (2026-09-13). The latest release is v0.1.0.
Is Dataset Diff & Change Detector up?
100% of our last 1 checks got an answer. We check remote servers about four times a day.

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