iii is a distributed service orchestrator and event-driven workflow engine designed to compose and manage cross-language functions and workers through a central execution engine. It functions as a multi-language service mesh and WebSocket service gateway, providing a persistent communication layer for remote service workers.
The platform enables dynamic runtime extensions, allowing new workers and capabilities to be deployed and registered into a live environment without requiring system restarts. It distinguishes itself by offering machine-readable skill exposure and agent capability integration, allowing AI agents to discover and utilize system functions.
The system covers a broad range of capabilities, including durable service orchestration for long-running processes, declarative event routing for mapping triggers like HTTP endpoints and cron schedules to logic, and real-time observability via W3C trace propagation. It further provides bidirectional binary data streaming, role-based access control, and cross-architecture binary compilation for cloud deployment.
The project provides standardized client libraries for Node.js, Python, and Rust to connect services to the core engine.
