mcp-call-cli

A lightweight Streamable HTTP MCP CLI for agents. It discovers tool definitions on demand and emits compact TOON output by default.

Install

npm install -g mcp-call-cli

Requires Node.js 18 or newer.

Configure

The default configuration path is ~/.config/mcp-call/mcp.json. Override it with MCP_CONFIG or --config <path>.

{
  "mcpServers": {
    "example": {
      "url": "https://example.com/mcp"
    }
  }
}

Both a top-level server map and a map nested under mcpServers are accepted.

Manage the local configuration without exposing endpoint or header values:

mcp-call config list
mcp-call config add example --url https://example.com/mcp
mcp-call config import ./mcp.json
mcp-call config remove example

Use

mcp-call
mcp-call check
mcp-call example tools
mcp-call example tools tool_name
mcp-call example tool_name '{"key":"value"}'

Use --json for compact JSON. Use --full to show complete tool descriptions and schemas.

Run mcp-call --help for the full command reference.