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mcp-csv-forwarder

by cithukyaw
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TypeScript

mcp-csv-forwarder

A simple MCP server that sends CSV data to a configured API endpoint.

Build & Inspect

npm run build
npm run inspect

or

npx tsc
npx @modelcontextprotoc/inspector node build/server.js

Example mcp.json:

{
    "mcpServers": {
        "mcp-csv-forwarder": {
            "command": "node",
            "args": ["/path/to/mcp-csv-forwarder/build/server.js"],
            "env": {
                "API_URL": "https://example.com/api/csv", // required
                "API_KEY": "your_api_key_here", // required
                "CSV_COL_COUNT": 5 // optional: default to 5
            }
        }
    }
}

Example prompt

Hey mcp-csv-forwarder, send a group of CSV data:
r1c1,r1c2,r1c3,r1c4,r1c5
r2c1,r2c2,r2c3,r2c4,r2c5
2025-12-17
r1c1,r1c2,r1c3,r1c4,r1c5
r2c1,r2c2,r2c3,r2c4,r2c5
2025-12-16
r1c1,r1c2,r1c3,r1c4,r1c5
r2c1,r2c2,r2c3,r2c4,r2c5

It will send data to the server in the format below:

[
  {
    "csvLines": "r1c1,r1c2,r1c3,r1c4,r1c5\nr2c1,r2c2,r2c3,r2c4,r2c5
  },
  {
    "date": "2025-12-17",
    "csvLines": "r1c1,r1c2,r1c3,r1c4,r1c5\nr2c1,r2c2,r2c3,r2c4,r2c5
  },
  {
    "date": "2025-12-16",
    "csvLines": "r1c1,r1c2,r1c3,r1c4,r1c5\nr2c1,r2c2,r2c3,r2c4,r2c5
  },
]

Notes:

  • You can implement your API endpoint to process this incoming data.

  • You can also adjust the column count in the MCP config CSV_COL_COUNT.

This server cannot be deployed

One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Maintenance

ActivityInactive
ResponsivenessNo issues

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