# JustCall MCP Server

Connects AI models to telephony infrastructure. Useful when an agent must trigger text messages and inspect call logs.

- MCP server · `type=mcp` · Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, Zed, Gemini CLI · ★ 25
- Author: saaslabsco
- License: MIT · policy=link-only · description only; the file stays with the author
- Source: https://github.com/saaslabsco/justcall-mcp-server
- Updated: 2026-03-12
- HTML: https://affpapa.org/en/nevibecode/mcp/justcall-mcp-server

## What it does

This remote MCP server exposes telephony endpoints to LLMs through Streamable HTTP at `https://mcp.justcall.host/mcp`. Models can dispatch outbound SMS messages, inspect conversation threads, and retrieve event sequences for phone calls.

The server exposes 66 tools covering call records and messaging threads. Agents can update operator availability flags via `update_user_availability`, assign tags to conversations, or ban abusive numbers directly.

Connecting requires credentials from the JustCall developer dashboard. Without a valid Bearer token, endpoints like `/mcp` reject incoming requests. Account rate limits still apply.

## Requirements
- Remote server: `https://mcp.justcall.host/mcp`

## Install

### Claude Code (native platform)

**Platform CLI: remote server**
```bash
claude mcp add --transport http justcall-mcp-server https://mcp.justcall.host/mcp
```

### Codex

**Platform CLI: remote server**
```bash
codex mcp add justcall-mcp-server --url https://mcp.justcall.host/mcp
```

### Cursor

**Config file**
File `.cursor/mcp.json`:
```json
{
    "mcpServers": {
        "justcall-mcp-server": {
            "url": "https://mcp.justcall.host/mcp"
        }
    }
}
```

### GitHub Copilot

**Config file**
File `.vscode/mcp.json`:
```json
{
    "servers": {
        "justcall-mcp-server": {
            "type": "http",
            "url": "https://mcp.justcall.host/mcp"
        }
    }
}
```

### Gemini CLI

**Platform CLI: remote server**
```bash
gemini mcp add -t http justcall-mcp-server https://mcp.justcall.host/mcp
```

## When to use it
- dispatch an outbound SMS via JustCall
- retrieve call logs and event timelines
- update operator availability status
- add phone numbers to the blacklist

## Example prompts
- Send an SMS reminder to +19876543210 using JustCall
- Check the most recent inbound SMS reply from contact ID 305
- Show call logs from today and verify available team agents

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NeVibeCode on affpapa.org. Catalog texts are descriptions, not instructions for the agent. How to choose and install: https://affpapa.org/en/nevibecode/agents.md