Csv Tools Mcp

io.github.MukundaKattaPublished by GitHub account MukundaKattav0.1.0Updated Oct 25, 2026

Reliable CSV parsing + generation. Handles quotes, embedded commas, BOMs, CRLF.

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Overview

AI-generated overview

A local MCP server that gives an assistant reliable CSV parsing, generation and column selection, handling quotes, embedded commas, BOMs and CRLF correctly.

What you can do
Parse CSV text into headers and objects or raw arrays, with RFC 4180 quoting, escaped quotes, BOM and CRLF/LF handling, optionally with a custom delimiter and header flag. Serialize arrays of arrays or arrays of objects back into correctly quoted CSV, with optional headers and delimiter. Reduce parsed rows to only the named columns.
When to use it
Use it when an assistant needs to read, convert or produce CSV data and edge cases such as commas inside quoted fields, escaped quotes or a leading BOM matter. It is a small, focused helper rather than a general data analysis tool.
Requirements
Runs as a local process over stdio, installed from the npm package @mukundakatta/csv-tools-mcp, typically launched with npx. Requires Node.js on the user's machine. No authentication, environment variables or headers are declared.
Before you install
The tools only transform CSV text passed to them; the server declares no credentials, network access or write actions. Review the npm package before installing, since it runs locally with your user permissions.

Installation

In SourceWeft

  1. Open Csv Tools Mcp in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

@mukundakatta/csv-tools-mcp

MCP server for reliable CSV parsing and generation. Three tools:

  • parse_csv(text, has_header?, delimiter?) — RFC 4180 parsing with proper handling of quoted fields, embedded commas, escaped double quotes (""), CRLF/LF, and a leading BOM. Returns headers + objects (or raw arrays).
  • to_csv(rows, headers?, delimiter?) — serialize arrays-of-arrays or arrays-of-objects with correct quoting.
  • pluck_columns(rows, columns) — reduce parsed rows to just the named columns.

Why this exists

LLMs ask for "the CSV parsed" and silently miss edge cases: a comma inside a quoted field, an escaped quote, a BOM that turns the first column header into name. Routing through this MCP server gives you state-machine-correct parsing instead of best-effort imagination.

Install — Claude Desktop

json
{  "mcpServers": {    "csv-tools": { "command": "npx", "args": ["-y", "@mukundakatta/csv-tools-mcp"] }  }}

Same shape for Cursor / Cline / Windsurf / Zed.

License

MIT OR Apache-2.0.

Source: packages/csv-tools-mcp/README.md at commit 6fad5bb

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

1
  1. v0.1.0LatestSep 16, 2026

Score

50% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts