# Phone Format — MCP tool `findutils:phone_format`

Format a phone number to E.164 (+CCNNNNNNN…) given an optional country calling code. Strips spaces, dashes, parens, and dots. Validates length against a small country table; returns valid=false without raising for numbers outside that table.

- Category: validation
- 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/phone-format/execute (no API keys, 60 req/min per IP)
- Reference page: https://findutils.com/mcp/phone-format/
- Same tool on the other surface: https://findutils.com/api/phone-format/

## Connect

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

Claude Desktop (`claude_desktop_config.json`):

```json
{
  "mcpServers": {
    "findutils": {
      "url": "https://mcp.findutils.com/"
    }
  }
}
```

## Call the tool (verified example)

```bash
curl -X POST https://mcp.findutils.com/ \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "tools/call",
    "params": {
      "name": "phone_format",
      "arguments": {
        "phone": "+1 415-555-0132"
      }
    }
  }'
```

## Input schema

| Argument | Type | Required | Description |
|---|---|---|---|
| `phone` | string | yes | The raw phone number (may include formatting). |
| `country_code` | string | no | ITU country calling code without "+" (e.g. "1", "44", "90"). Default: "1". |

Example arguments (verified):

```json
{
  "phone": "+1 415-555-0132"
}
```

## Also a REST endpoint

```bash
curl -X POST https://api.findutils.com/api/tools/phone-format/execute \
  -H "Content-Type: application/json" \
  -d '{
    "phone": "+1 415-555-0132"
  }'

# Parameter schema
curl https://api.findutils.com/api/tools/phone-format
```

Full REST reference: https://findutils.com/api/phone-format/ · OpenAPI 3.1 spec: https://findutils.com/api/openapi.json

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Full catalog: POST https://mcp.findutils.com/ with method `tools/list` · https://findutils.com/mcp/ · https://findutils.com/llms.txt