Phone numbers as tools. Your agent orders a private number in the country a service expects, reads the SMS verification code straight from the API, and hands the number back. Nine tools over stdio…
mcp-server is an MCP project maintained in the sv-number/mcp-server repository. The maintainer describes its purpose as “Phone numbers as tools. Your agent orders a private number in the country a service expects, reads the SMS verification code straight from the API…”. Read the project documentation for the complete scope.
The documented npm package is sv-number-mcp. The configuration below comes from the maintainer’s example; adapt its paths and account values to your environment.
The example declares SVN_API_KEY. Secret-looking values have been replaced with placeholders. Required and optional labels are shown only when the documentation states them.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| get_balance | what is left on the account |
| list_countries | every country with its id and operators |
| list_services | find the code for a site: search by name or domain, best match first, price, how many are online, and the share of codes that actually arrived |
| order_number | order a private number for one service in one country |
| wait_for_code | poll until the code lands and return it, already parsed out of the SMS |
| finish_activation | close a successful activation |
| cancel_activation | cancel and get the money back |
| request_another_sms | ask for one more code on the same number |
| totp_code | compute the authenticator code locally, by RFC 6238 |
{
"mcpServers": {
"sv-number": {
"command": "npx",
"args": [
"-y",
"sv-number-mcp"
],
"env": {
"SVN_API_KEY": "YOUR_SVN_API_KEY"
}
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
| Variable | Description | Required |
|---|---|---|
| SVN_API_KEY | Declared in the maintainer’s client configuration. | Yes |
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