Claude Agents Server

MCP server for the Anthropic Managed Agents API (beta managed-agents-2026-04-01).

Creates and manages Claude Code cloud environments, agents, and sessions programmatically via api.anthropic.com/v1.

Tools (17)

Environments: create_environment, list_environments, get_environment, archive_environment, delete_environment

Agents: create_agent, list_agents, get_agent, list_agent_versions, archive_agent

Sessions: create_session, list_sessions, get_session, send_session_message, list_session_events, archive_session, delete_session

Environment variables

• ANTHROPIC_API_KEY (required) - Anthropic API key with Managed Agents beta access

Endpoints

• GET /sse + POST /messages - legacy SSE transport
• POST /mcp - Streamable HTTP transport
• GET /health

Typical flow

1. create_environment {name: 'python-dev', packages: {pip: ['pandas']}}
2. create_agent {name: 'Coder', model: 'claude-opus-4-8', system: '...'}
3. create_session {agent_id, environment_id}
4. send_session_message {session_id, text: 'clone repo X and fix the bug'}
5. list_session_events {session_id}