A showcase library demonstrating a simple coding agent implementation in Elixir, leveraging the Anthropic Claude API and the Multi-Context Processor (MCP) for tool usage.
Simple Agent is a lightweight Elixir application that:
- Implements a chat loop for interacting with an AI model.
- Integrates with the Anthropic Claude API for natural language processing.
- Connects to a Multi-Context Processor (MCP) server via the
Hermeslibrary to enable the use of external tools through STDIO (e.g. tools available in other ecosystems) - Provides a CLI interface for interactive conversations.
- Supports defining both local Elixir tools and utilizing tools exposed by the MCP.
- Node.js and
npx(for running the MCP server) - Anthropic API key (set as ANTHROPIC_API_KEY environment variable)
The MCP server (@upstash/context7-mcp) is automatically started and managed by the Elixir application's supervision tree when the application starts. npx will handle downloading the MCP package if necessary.
- Set your Anthropic API key:
export ANTHROPIC_API_KEY="your-api-key"- Build and start the agent:
mix escript.build
./simple_agentMIT License