Justcall Mcp Server
@saaslabsco
The JustCall Model Context Protocol (MCP) Server lets Large Language Models (LLMs) and AI agents make real-world voice calls and send SMS directly through JustCall’s APIs — securely, contextually, and programmatically.
概要
What is JustCall MCP Server?
JustCall MCP Server lets Large Language Models (LLMs) and AI agents make real-world voice calls and send SMS directly through JustCall’s APIs, providing a function-calling interface for conversational AI systems.
How to use JustCall MCP Server?
Install Node.js, then configure your MCP client (e.g., Claude Desktop) by adding the server details to its config file using your JustCall API key and secret. For remote access, connect via Streamable HTTP Transport to https://mcp.justcall.host/mcp with bearer token authentication.
Key features of JustCall MCP Server
- AI-powered calling: initiate, manage, or transcribe calls
- Smart messaging: send or respond to SMS within conversations
- Seamless integration with any LLM runtime via MCP standard
- Secure authentication using JustCall API key and secret
- Remote connection via Streamable HTTP Transport
Use cases of JustCall MCP Server
- Enable your AI chatbot to place outbound voice calls to customers
- Let an AI agent send or reply to SMS during a conversation
- Integrate telephony capabilities into orchestration frameworks and LLM runtimes
FAQ from JustCall MCP Server
What are the prerequisites to run the server?
You need Node.js (which includes npm and npx) installed on your system. The LTS version is recommended.
How do I authenticate with JustCall MCP Server?
Get your JustCall API key and secret from the JustCall dashboard at https://app.justcall.io/app/developersApiCredentials. Include them as a bearer token in the request headers, for example Authorization: <JUSTCALL_API_KEY>:<JUSTCALL_API_SECRET>.
How do I connect to the remote MCP server?
Connect to https://mcp.justcall.host/mcp from any MCP client using Streamable HTTP Transport, and include your JustCall API key as a bearer token.
What transport does the remote server use?
The recommended and default transport is Streamable HTTP. You can also use the supergateway npx command with the --streamableHttp flag.
Can I develop or test the server locally?
Yes, clone the repository, install dependencies with pnpm install, build with pnpm run build, and test using pnpm run inspector.
