Csv
FreeNot checkedConverts CSV to JSON and JSON to CSV offline, supporting RFC 4180 with header detection and custom delimiters.
About
Converts CSV to JSON and JSON to CSV offline, supporting RFC 4180 with header detection and custom delimiters.
README
CSV <-> JSON MCP.
Part of Pipeworx — an MCP gateway connecting AI agents to 1148+ live data sources.
Tools
| Tool | Description |
|---|---|
csv_to_json |
Parse RFC 4180 CSV into JSON (keyless, offline). With header true (default) the first row becomes object keys; otherwise rows are returned as arrays. Handles quoted fields, escaped quotes, and embedded commas/newlines. Set delimiter for TSV etc. |
json_to_csv |
Serialize an array of JSON objects (or arrays) to CSV (keyless, offline). Object keys become the header (union of all keys, in first-seen order). Fields are quoted when needed. |
Quick Start
Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):
{
"mcpServers": {
"csv": {
"url": "https://gateway.pipeworx.io/csv/mcp"
}
}
}
Or connect to the full Pipeworx gateway for access to all 1148+ data sources:
{
"mcpServers": {
"pipeworx": {
"url": "https://gateway.pipeworx.io/mcp"
}
}
}
Using with ask_pipeworx
Instead of calling tools directly, you can ask questions in plain English:
ask_pipeworx({ question: "your question about Csv data" })
The gateway picks the right tool and fills the arguments automatically.
More
License
MIT
Installing Csv
This server has no published package — it is built from source. Open the repository and follow its README.
▸ github.com/pipeworx-io/mcp-csvFAQ
Is Csv MCP free?
Yes, Csv MCP is free — one-click install via Unyly at no cost.
Does Csv need an API key?
No, Csv runs without API keys or environment variables.
Is Csv hosted or self-hosted?
A hosted option is available: Unyly runs the server in the cloud, no local setup required.
How do I install Csv in Claude Desktop, Claude Code or Cursor?
Open Csv on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.
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