Sv Number MCP Server

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. Its 9 documented tools cover code, activation. It runs locally over stdio via the published package.

People connecting API integration tools to Claude, Cursor, VS Code, or another MCP client. The project is written in JavaScript.

VERIFIED ACTIVE

LAST COMMIT 2026-08-10 · ★ 560 · #31 OF 250 MAINTAINED API INTEGRATION · VERIFIED 2026-08-25

MIT · JavaScript servers · how we verify → /methodology

01 · Install Sv Number MCP Server

before you install - you'll need

SVN_API_KEY

Environment variables documented in the project's README - it lists which are required and which have defaults.

Claude Code

claude mcp add sv-number-mcp-server -- npx -y sv-number-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "sv-number-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "sv-number-mcp"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

repo age created 2026-08-07 - young repo, little track record yet

license MIT - declared in the repository

npm package sv-number-mcp - unscoped; check the name against the project README before installing

registry namespace io.github.sv-number is GitHub-verified and matches the repo owner

03 · What Sv Number MCP Server can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

What you can build

With this server connected, an agent can close a successful activation, cancel and get the money back, and ask for one more code on the same number.

Capability map

Tools grouped from the project's README - what Sv Number MCP Server lets an agent do.

read & search

3 tools - e.g. what is left on the account; every country with its id and operators; 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…

get_balance · list_countries · list_services

Order

1 tool - e.g. order a private number for one service in one country

order_number

Wait

1 tool - e.g. poll until the code lands and return it, already parsed out of the SMS

wait_for_code

Finish

1 tool - e.g. close a successful activation

finish_activation

delete

1 tool - e.g. cancel and get the money back

cancel_activation

Request

1 tool - e.g. ask for one more code on the same number

request_another_sms

Totp

1 tool - e.g. compute the authenticator code locally, by RFC 6238

totp_code

04 · Who maintains Sv Number MCP Server

mcp-server is maintained by sv-number. It's the only MCP server we track from this author; the repo dates to Aug 2026.

05 · Facts

category
API integration - ranked #31 of 250 actively-maintained API integration servers as of 2026-08-25.
registry
io.github.sv-number/mcp-server (active, first published 2026-08-09)
packages
npm:sv-number-mcp

06 · Sv Number MCP Server FAQ

Is Sv Number MCP Server still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-10. We re-verify nightly.

What can Sv Number MCP Server do?

With this server connected, an agent can close a successful activation, cancel and get the money back, and ask for one more code on the same number.

How do I install Sv Number MCP Server?

Run `npx -y sv-number-mcp`. The README documents one environment variable (SVN_API_KEY) to set first. You can also paste the ready-made client config above.

Does Sv Number MCP Server run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Sv Number MCP Server