mcp_gateway | SignalWire

Connect to MCP (Model Context Protocol) servers via the MCP Gateway service. Each MCP tool is dynamically registered as a SWAIG function, enabling your agent to use any MCP-compatible tool.

Tools: Dynamically created from connected MCP services

Requirements: Running MCP Gateway service

Multi-instance: Yes

gateway_url

strRequired

MCP Gateway service URL.

auth_user

str

Basic auth username for the gateway.

auth_password

str

Basic auth password for the gateway.

auth_token

str

Bearer token (alternative to basic auth).

services

list[dict]

Specific services and tools to enable. Each dict has name (str) and tools (str "*" or list of tool names). If omitted, all available services are enabled.

session_timeout

intDefaults to 300

Session timeout in seconds.

tool_prefix

strDefaults to mcp_

Prefix for generated function names (e.g., mcp_todo_add_todo).

retry_attempts

intDefaults to 3

Number of connection retry attempts.

request_timeout

intDefaults to 30

Individual request timeout in seconds.

verify_ssl

boolDefaults to True

Whether to verify SSL certificates.

1 from signalwire import AgentBase
2 
3 class MyAgent(AgentBase):
4     def __init__(self):
5         super().__init__(name="assistant", route="/assistant")
6         self.set_prompt_text("You are a helpful assistant.")
7         self.add_skill("mcp_gateway", {
8             "gateway_url": "http://localhost:8080",
9             "auth_user": "admin",
10             "auth_password": "secure-password",
11             "services": [
12                 {"name": "todo", "tools": "*"},
13                 {"name": "calculator", "tools": ["add", "multiply"]}
14             ]
15         })
16 
17 agent = MyAgent()
18 agent.serve()