How do I install Csvto?

Copy the stdio config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.

Does Csvto need an API key?

No required environment variable is listed on this record.

When was Csvto last checked?

Last checked 2026-11-08. Local CSV, JSON and Excel conversion. Files are never uploaded and never enter the context.

Csvto MCP server

Power your agent

Add this server

The publisher's own command. Not a PlugMCP endpoint.

Add to Cursor Add to VS Code Run on PlugMCP

Host a copy with our keys and logs.

Local command

npx -y [email protected]

Claude Code has no install link for a local command. Copy the command below and run it in a terminal.

shClaude Code

1claude mcp add io.github.bishop81-csvto-mcp -- npx -y csvto-mcp@0.1.2

Run in a terminal.

jsonClaude Desktop

1{2  "mcpServers": {3    "io.github.bishop81-csvto-mcp": {4      "command": "npx",5      "args": [6        "-y",7        "[email protected]"8      ]9    }10  }11}

claude_desktop_config.json

Local · npmPublisher installStep-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

Server facts

Local

Transport: stdio
Version: 0.1.2
Last checked

Tools

No tool list yet. Remote servers get one after the first health check.

FAQ

Questions

csvto

CSV, JSON and Excel conversion that runs where your data already is.

csvto-mcp — an MCP server. Point your AI assistant at a file path; it converts locally and writes the result beside it. Nothing is uploaded, and file contents never pass through the model's context.
@csvto/core — the conversion engine. No DOM, no fs, no network, so the same tested code runs in a browser, in a local MCP process, or on a server.

The same engine powers the browser tools at csvtosite.com, where conversion happens client-side and files are likewise never uploaded.

Install the MCP server

claude mcp add csvto -- npx -y csvto-mcp

Or in any MCP client's config:

{
  "mcpServers": {
    "csvto": { "command": "npx", "args": ["-y", "csvto-mcp"] }
  }
}

Requires Node 18+. Full tool list and behaviour: packages/mcp/README.md.

Types are inferred per column, not per cell

This is the part that matters, and where most converters quietly corrupt data. A column converts to numbers only if every value in it survives the round trip exactly. If one value would change, the whole column stays text:

01234 keeps its leading zero instead of becoming 1234
A 16-digit account number stays itself instead of becoming 1.23457E+14
1250.50 keeps its trailing zero instead of becoming 1250.5
A column never ends up as a mix of numbers and strings

Verified in tests: 01234 survives a CSV → xlsx → CSV round trip intact.

Develop

npm install
npm test          # 49 tests
npm run build

packages/core must stay environment-free — no window, no fs, no fetch. That constraint is what lets one tested engine serve every surface.

Licence

MIT

Csvto

Add this server

Host a copy with our keys and logs.

Server facts

Tools

Questions

How do I install Csvto?

Does Csvto need an API key?

What transport does Csvto use?

When was Csvto last checked?

Documentation

csvto

Install the MCP server

Types are inferred per column, not per cell

Develop

Licence