# Meta rebrands Llama Stack to OGX as open-source agentic API server

Digest AI · Agents & Tools · published 2026-10-15T14:00:00Z

Canonical: https://digestai.news/story/meta-rebrands-llama-stack-to-ogx-as-open-source-agentic-api-server

## Summary

Meta has rebranded its Llama Stack project to **OGX**, an open-source agentic API server designed for building AI applications compatible with OpenAI’s API. Released under the MIT license, OGX supports any model and infrastructure, acting as a drop-in replacement for the OpenAI API. It simplifies local and cloud deployment, offering pluggable backends like Ollama, vLLM, or managed cloud services while maintaining a unified API surface for development.

The project, previously known as Llama Stack, boasts over **8,400 GitHub stars** and **1,400 forks**, with active community engagement. OGX includes features like server-side agentic orchestration, tool calling, and built-in RAG capabilities, reducing the need for manual vector database setup. A tutorial demonstrates how to build a **DocBrain** assistant that retrieves document content and flags actionable tasks, showcasing its practicality for real-world workflows.

## Key points

- OGX replaces Llama Stack as Meta’s open-source agentic API server, compatible with OpenAI’s API and any model/infrastructure
- Supports local (Ollama), cloud (vLLM), or managed providers with a single API surface, reducing migration effort
- Includes RAG, tool calling, and agentic orchestration, with a tutorial building a document-questioning assistant with task automation

## Why it matters

OGX lowers barriers for developers to build scalable AI agents without vendor lock-in, blending local flexibility with production-grade features. Its open-source nature and compatibility with existing OpenAI clients accelerate adoption for startups and enterprises.

## Sources

1. [Building AI Applications with OGX, the Open-Source Agentic API Server](https://kdnuggets.com/building-ai-applications-with-open-source-agentic-api-server-ogx) (KDnuggets, 2026-10-15)

## Cite

Digest AI, "Meta rebrands Llama Stack to OGX as open-source agentic API server", 15 October 2026, https://digestai.news/story/meta-rebrands-llama-stack-to-ogx-as-open-source-agentic-api-server

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