Relay.app is an AI automation platform for building workflows and agents from natural language. It combines a chat-based builder with a visual editor so users can describe a process, have Relay.app generate it, and then refine the steps by hand.
The product is designed to connect workflows across 200+ apps and multiple AI models, including Claude, GPT, and Gemini. It supports common automation patterns such as triggers, branches, loops, approvals, reusable sequences, tables, and custom MCP servers, which makes it suitable for both simple automations and more structured operational workflows.
Relay.app emphasizes predictable execution rather than generating a process from scratch on every run. Its site highlights human-in-the-loop controls, run history, revision history, and workflow templates, which are aimed at teams that want automation without losing visibility or control.