Cursor + AgentLine

Give your Cursor agent its own phone number

Cursor already edits the repo. Add AgentLine and it can provision a number, place a call, and read the transcript from the same session that writes your app.

Get an API key

One skill file

Point Cursor at https://agentline.cloud/skill.md or add the MCP server in ~/.cursor/mcp.json. After AGENTLINE_API_KEY is set, 'call this number' is a normal tool use.

text

Get yourself a phone number and call me. Follow https://agentline.cloud/skill.md

Why give Cursor a phone number

MCP or skill, your choice

Use the skill file, or https://api.agentline.cloud/mcp with a bearer header. Same API underneath.

Calls from the repo you are already in

Cursor can create the agent, buy a number, and dial as part of the same session that ships the feature.

Cloud agents included

The same skill works in local Cursor and in Cursor cloud agents. The number follows the agent, not the laptop.

Set up Cursor

How the skill and the service land on this runtime.

1. Add the MCP server

Add this to ~/.cursor/mcp.json (or Settings → MCP), then restart Cursor.

json

{
  "mcpServers": {
    "agentline": {
      "command": "npx",
      "args": ["-y", "mcp-remote@latest", "https://api.agentline.cloud/mcp", "--header", "Authorization: Bearer $AGENTLINE_API_KEY"]
    }
  }
}

2. Install the relay service

For live inbound turns inside Cursor terminal sessions. Cursor has no built-in harness, so --handler must be a shell command that reads a caller prompt on stdin and prints the reply — without it the relay installs but cannot answer calls.

bash

python -c "import urllib.request; urllib.request.urlretrieve('https://api.agentline.cloud/static/agentline_relay.py','agentline_relay.py')"
python agentline_relay.py install --agent-id agt_xxx --runtime custom --handler "YOUR_HANDLER_COMMAND"

FAQ

Does AgentLine work with Cursor?

Yes. Add the skill or the MCP server, set AGENTLINE_API_KEY, and ask Cursor to buy a number and call you.

Where do I put the MCP config?

~/.cursor/mcp.json, or Settings → MCP. Use the bearer header with your AgentLine API key.

Can Cursor handle inbound calls live?

With the persistent relay installed, live utterances reach the runtime. A public webhook is the fallback.