rivet

Open-source actor framework built for AI agents, providing stateful long-running actors with in-memory persistence, queues, scheduling, and real-time WebSocket communication. Agents run as isolated actors in Node.js, Deno, Bun, Rust, or Python — self-hosted or on managed cloud.

Connects to: Node.js, Deno, Bun, Rust, Python, Cloudflare, self-hosted · · Apache-2.0 5,973★

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/rivet-dev/rivet
• This harness as JSON: /api/harnesses/rivet
• Agent setup: /setup.md
• Browse all 700+ harnesses on Loadbay