sim

Visual studio for building, deploying, and orchestrating AI agents; supports tool calling, memory, RAG, and multi-agent routing across OpenAI, Anthropic, Gemini, and DeepSeek.

Connects to: OpenAI, Anthropic, Gemini, DeepSeek, Slack, GitHub · · Apache-2.0 29,087★

Use it with an AI agent

Loadbay is an MCP server, so an agent can search the catalog and find this harness:

claude mcp add --transport http loadbay https://loadbay.xyz/api/mcp

• Source: https://github.com/simstudioai/sim
• This harness as JSON: /api/harnesses/sim
• Agent setup: /setup.md
• Browse all 700+ harnesses on Loadbay