Dataset Join & Merge

Name: Dataset Join & Merge
Author: Nero-Engine

MCP serverMCP

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

by Nero-Enginerepository ↗homepage ↗v0.1.0

Is this yours?

This record is unclaimed

Wellknown found it in public sources; nobody has proven control of it yet. Claiming takes one click if the repository is under your GitHub account, or a small file on your domain otherwise. Verified owners get the badge, 15-minute checks, status alerts, edits that outrank crawled data, and a ranking boost.

Agents can do it too: POST https://wellknown.network/api/v1/claims with {"agent":"dataset-join-merge","method":"well_known_file"} — machine-readable steps at claim.json, guide at /docs/claim.

Claim this record

Observed by Wellknown

Evidence

Everything here was measured by our prober or read from a registry. Nothing is self-reported.

30-day availability97/97 checks ok

when	check	result	http	latency	detail
4 h ago	mcp initialize	ok	200	39 ms	server nerolabs-dataset-join-merge 0.1.0 · protocol 2025-06-18 · 2 tools
11 h ago	mcp initialize	ok	200	12 ms	server nerolabs-dataset-join-merge 0.1.0 · protocol 2025-06-18 · 2 tools
18 h ago	mcp initialize	ok	200	64 ms	server nerolabs-dataset-join-merge 0.1.0 · protocol 2025-06-18 · 2 tools
25 h ago	mcp initialize	ok	200	23 ms	server nerolabs-dataset-join-merge 0.1.0 · protocol 2025-06-18 · 2 tools
30 h ago	mcp initialize	ok	200	13 ms	server nerolabs-dataset-join-merge 0.1.0 · protocol 2025-06-18 · 2 tools
2 d ago	mcp initialize	ok	200	38 ms	server nerolabs-dataset-join-merge 0.1.0 · protocol 2025-06-18 · 2 tools
2 d ago	mcp initialize	ok	200	16 ms	server nerolabs-dataset-join-merge 0.1.0 · protocol 2025-06-18 · 2 tools
2 d ago	mcp initialize	ok	200	66 ms	server nerolabs-dataset-join-merge 0.1.0 · protocol 2025-06-18 · 2 tools
2 d ago	mcp initialize	ok	200	83 ms	server nerolabs-dataset-join-merge 0.1.0 · protocol 2025-06-18 · 2 tools
3 d ago	mcp initialize	ok	200	24 ms	server nerolabs-dataset-join-merge 0.1.0 · protocol 2025-06-18 · 2 tools

Tools observed via MCP handshake

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 ro
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 e

Declared by sources

What the publisher says

Attributed to the source that supplied each field. Treated as claims, not facts.

No long description beyond the summary.

kind Official MCP Registry

name Official MCP Registry

repoUrl Official MCP Registry

summary Official MCP Registry

version Official MCP Registry

description Official MCP Registry

homepageUrl Official MCP Registry

publisherName Official MCP Registry

Provenance

Where this record came from

Every source is kept verbatim. Field changes are logged as events.

Official MCP Registryio.github.Nero-Engine/dataset-join-merge

first seen 26 d ago · fetched 12 h agoopen ↗

Field history (7 recent events)

26 d ago · declared · summary → "Join two lists of JSON rows on a key, like SQL or VLOOKUP: left, inner, full, anti joins, union."
26 d ago · declared · description → "Join two lists of JSON rows on a key, like SQL or VLOOKUP: left, inner, full, anti joins, union."
26 d ago · declared · publisherName → "Nero-Engine"
26 d ago · declared · homepageUrl → "https://github.com/Nero-Engine/dataset-join-merge-mcp"
26 d ago · declared · repoUrl → "https://github.com/Nero-Engine/dataset-join-merge-mcp"
26 d ago · declared · version → "0.1.0"
26 d ago · declared · protocols → ["mcp"]

This record is unclaimed

Evidence

What the publisher says

Capabilities

Where this record came from