# Csv To Tsv — REST API endpoint `csv-to-tsv`

Convert comma-separated values to tab-separated values, the format spreadsheet paste, psql and mysql --batch expect. Quoted fields, embedded line breaks and doubled quotes are read per RFC 4180; the input delimiter is detected from the first line when not given. A cell that holds a tab, a quote or a line break is quoted the way Excel's tab-delimited export quotes it; every other cell is written bare. Values stay text. A leading byte order mark is dropped and blank lines are skipped.

- Category: data
- MCP server: https://mcp.findutils.com/ (Streamable HTTP, no API keys, 120 req/min per IP)
- REST endpoint: POST https://api.findutils.com/api/tools/csv-to-tsv/execute (no API keys, 60 req/min per IP)
- Reference page: https://findutils.com/api/csv-to-tsv/
- Same tool on the other surface: https://findutils.com/mcp/csv-to-tsv/

## Call the endpoint (verified example)

```bash
curl -X POST https://api.findutils.com/api/tools/csv-to-tsv/execute \
  -H "Content-Type: application/json" \
  -d '{
    "csv": "a,b\n1,\"x, y\""
  }'

# Parameter schema
curl https://api.findutils.com/api/tools/csv-to-tsv
```

## Input schema

| Argument | Type | Required | Description |
|---|---|---|---|
| `csv` | string | yes | CSV input. |
| `delimiter` | string | no | Input field separator: ",", ";" or "\|". Omit to detect it from the first line. |

Example arguments (verified):

```json
{
  "csv": "a,b\n1,\"x, y\""
}
```

OpenAPI 3.1 spec: https://findutils.com/api/openapi.json · Interactive docs: https://findutils.com/api/docs/

## Also an MCP tool

```bash
claude mcp add findutils --transport http https://mcp.findutils.com/
```

Then ask the client to call `findutils:csv_to_tsv`. Full MCP reference: https://findutils.com/mcp/csv-to-tsv/

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