Connect Dataset Join & Merge and your agent gets 2 tools, among them join_rows, list_capabilities. It answers at https://dataset-join-merge.nerolabs.workers.dev/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 5 of 5 times since 13 September 2026; the last check, on 19 October 2026, succeeded.
Join two lists of JSON rows on a key, like SQL or VLOOKUP: left, inner, full, anti joins, union.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
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 Inputs: leftRows, rightRows, leftKeyFields, rightKeyFields, joinType, keyMatching |
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. |
Every block below points at https://dataset-join-merge.nerolabs.workers.dev/mcp. Pick your client and copy.
claude mcp add --transport http dataset-join-merge https://dataset-join-merge.nerolabs.workers.dev/mcp
{
"mcpServers": {
"dataset-join-merge": {
"command": "npx",
"args": ["-y", "mcp-remote", "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"
}
}
}{
"context_servers": {
"dataset-join-merge": {
"url": "https://dataset-join-merge.nerolabs.workers.dev/mcp"
}
}
}{
"mcpServers": {
"dataset-join-merge": {
"serverUrl": "https://dataset-join-merge.nerolabs.workers.dev/mcp"
}
}
}{
"mcpServers": {
"dataset-join-merge": {
"url": "https://dataset-join-merge.nerolabs.workers.dev/mcp"
}
}
}name: Dataset Join & Merge
version: 0.0.1
schema: v1
mcpServers:
- name: Dataset Join & Merge
type: streamable-http
url: https://dataset-join-merge.nerolabs.workers.dev/mcp{
"mcpServers": {
"dataset-join-merge": {
"httpUrl": "https://dataset-join-merge.nerolabs.workers.dev/mcp"
}
}
}{
"mcpServers": {
"dataset-join-merge": {
"type": "http",
"url": "https://dataset-join-merge.nerolabs.workers.dev/mcp"
}
}
}{
"mcpServers": {
"dataset-join-merge": {
"url": "https://dataset-join-merge.nerolabs.workers.dev/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fdataset-join-merge.nerolabs.workers.dev%2Fmcp&type=streamable_http&id=dataset-join-merge&name=Dataset%20Join%20%26%20Merge
It answered our last check on 19 October 2026 in 185 ms. Over 5 checks since 13 September 2026 it answered 5. Status here comes from Neuronto's own probes, not from the publisher.
2, as returned by the server's own tools/list on 24 September 2026: join_rows, list_capabilities.
It answered our last check on 19 October 2026 in 185 ms. Over 5 checks since 13 September 2026 it answered 5.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://dataset-join-merge.nerolabs.workers.dev/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: io.github.nero-engine. Endpoint host: dataset-join-merge.nerolabs.workers.dev. ARD identifier: urn:air:io.github.nero-engine:mcp:dataset-join-merge.
First indexed 13 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.