agentsim-mcp
MCP server that enables AI coding assistants to provision temporary US phone numbers and receive SMS OTPs for verification workflows.
README
agentsim-mcp
<!-- mcp-name: dev.agentsim/mcp -->
MCP server that exposes AgentSIM OTP session tools to AI coding assistants: Claude Code, Cursor, Windsurf, and any other MCP-compatible host.
Setup
Claude Code
claude mcp add agentsim -e AGENTSIM_API_KEY=asm_live_xxx -- uvx agentsim-mcp
Claude Desktop
Add to ~/Library/Application Support/Claude/claude_desktop_config.json:
{
"mcpServers": {
"agentsim": {
"command": "uvx",
"args": ["agentsim-mcp"],
"env": {
"AGENTSIM_API_KEY": "asm_live_xxx"
}
}
}
}
Cursor / Windsurf
Add agentsim-mcp as a stdio MCP server with AGENTSIM_API_KEY in the environment config.
Remote (no install)
Connect directly to the hosted MCP server without installing anything locally:
{
"mcpServers": {
"agentsim": {
"type": "streamable-http",
"url": "https://mcp.agentsim.dev/mcp",
"headers": {
"x-api-key": "asm_live_..."
}
}
}
}
Tools
| Tool | Description |
|---|---|
provision_number |
Provision a temporary programmable US number for an OTP session — returns number, session ID, expiry |
wait_for_otp |
Long-poll until an OTP arrives on the session (returns parsed code) |
get_messages |
List raw SMS messages received on a session |
release_number |
Release a session early (number returned to pool) |
list_numbers |
List all active sessions for this account |
Auth
Set AGENTSIM_API_KEY in your environment. Get your key at console.agentsim.dev.
Supported Countries
US (more coming soon)
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