atheris-mcp

An MCP server for Atheris proxies — real-carrier 4G/5G mobile and residential IPs, per gigabyte. It gives an agent a fully autonomous path to route traffic through a specific-country IP: check live stock, get a ready-to-use proxy URL, and check remaining GB — all as tool calls.

Zero dependencies. One file. Node ≥ 18.

Tools

• atheris_stock — live proxy stock by country and pool (mbl = mobile, peer = residential). No key needed. Call it first to pick a country with capacity.
• atheris_proxy_url — a ready http:// or socks5:// proxy URL for a country/pool/session/rotation. Hand it straight to any HTTP client.
• atheris_usage — the key's remaining GB and expiry.

Setup

You need an Atheris access key (pak_…) from the dashboard.

From npm (atheris-mcp, also in the official MCP registry as io.github.atheris-ee/atheris-mcp):

// Claude Desktop / Claude Code / Cursor / any MCP client
{
  "mcpServers": {
    "atheris": {
      "command": "npx",
      "args": ["-y", "atheris-mcp"],
      "env": { "ATHERIS_PROXY_KEY": "pak_your_key_here" }
    }
  }
}

Straight from GitHub also works: "args": ["-y", "github:atheris-ee/atheris-mcp"].

Or from a local checkout:

{
  "mcpServers": {
    "atheris": {
      "command": "node",
      "args": ["/path/to/atheris-mcp.mjs"],
      "env": { "ATHERIS_PROXY_KEY": "pak_your_key_here" }
    }
  }
}

Env:

• ATHERIS_PROXY_KEY — your pak access key (required for atheris_proxy_url and atheris_usage; atheris_stock works without it).
• ATHERIS_API_BASE — defaults to https://atheris.ee/api/v1. Your key is sent as a Bearer token to whatever host this names, so only point it at a host you trust.

The key is the same credential used as the proxy password — treat it like one. Keep it in env, not in command args, and rotate it from the dashboard if it leaks. The server talks only to atheris.ee (or your ATHERIS_API_BASE) and collects no telemetry.

The atheris_proxy_url result is also a secret. Both its proxy_url and password fields embed your pak key — treat the tool's output like the key itself: don't log it or paste it into shared transcripts.

Session rule (important)

Each atheris_proxy_url call takes a session id. The same session id returns the same exit IP. For many parallel identities (scraping distinct hosts, running many antidetect profiles), give each identity its own session id — reusing one sticky session across many pins them all to a single exit. Use rotation: "hard" if you want a fresh exit on every connection instead.

The underlying HTTP API

The server is a thin wrapper over the Atheris JSON API (bearer-authed with your pak key):

• GET /api/v1/stock
• GET /api/v1/proxy?country=us&pool=mbl&session=<id>&rotation=sticky&protocol=http
• GET /api/v1/usage

See https://atheris.ee/llms-full.txt for the full agent reference, including buying access programmatically.

License

MIT © Arvane Holdings OÜ