Introduction

Welcome to the Everstack documentation. Everstack is an open-source, unified AI infrastructure platform that brings together everything you need to build production-grade AI applications -- from LLM gateways and agent orchestration to workflow studios, vector memory, and sandboxed execution environments.

What is Everstack?

Everstack provides a complete platform for AI application development:

• AI Gateway -- A unified proxy for 200+ LLM models across providers (OpenAI, Anthropic, Google, etc.) with built-in load balancing, caching, rate limiting, and fallback routing.
• Agent Runtime -- Build, deploy, and manage autonomous AI agents with tool use, human-in-the-loop approval, and persistent memory.
• Workflow Studio -- A visual workflow builder for designing multi-step AI pipelines with conditional logic, branching, and provider chaining.
• Vector Memory -- Managed vector collections for RAG, semantic search, and long-term agent memory backed by pgvector.
• Sandbox Environments -- Isolated runtimes for agents, jobs, preview apps, webhook workers, and safe code execution with shell access, filesystems, networking controls, and port exposure.
• Observability -- Full-stack tracing, logging, and metrics powered by OpenTelemetry and ClickHouse.
• Vault -- Centralized API key management with rotation, spend limits, and per-key access controls.

Quick Start

Choose Your Path

Whether you're setting up your first AI gateway or orchestrating complex multi-agent workflows, Everstack scales with your needs.

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