LibreChat

LibreChat-AI/LibreChat is an open-source project by LibreChat-AI: Enhanced ChatGPT Clone: Features Agents, MCP, Skills, DeepSeek, Anthropic, AWS, OpenAI, Responses API, Azure, Groq, o1, GPT-5, Mistral, OpenRouter, Vertex AI, Gemini, Artifacts, AI model switching, message search, Code Interpreter, langchain, DALL-E-3, OpenAPI Actions, Functions, Secure Multi-User Auth, Presets, open-source for self-hosting. Active. Indexed here so it can be found — not resold.

It is free. Get it from the upstream repository: https://github.com/LibreChat-AI/LibreChat

From the project's own README (excerpt, reproduced for discovery under its MIT license):

LibreChat

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🚀 What's New in v0.8.8 • Agent Management API (beta): Create, discover, update, and delete Agents; manage Agent files and Skills; and authenticate machine clients through deployment-bound OIDC identities while preserving existing role and Agent access controls. Public OpenAPI and Swagger UI cover inference, events, Agent management, and Skill management. • Attached workspaces (highly experimental): Select or save a per-Agent default workspace for each managed or personal code worker, then let Agents inspect trees, read and search files, author changes, and run Bash with bounded timeouts. Personal workers support bounded self-service enrollment, readiness status, and per-Agent Git identity. • Background tool controls: Optionally cancel ordinary background tools, including attached Bash, while keeping detached Subagent execution independent. • Code approval controls: Choose Ask, Allow, or Deny for file writes and command execution where administrators permit it, including a Full access mode for trusted attached environments. File Search and Run Code also honor role grants. • Manual context compaction: Start a summarize-only turn before the context window fills while preserving recent conversation content according to the deployment's summarization policy. • Context Usage: Inspect dialogue, retained tool traffic, Agent instructions, cache, cost, and runway pressure without double-counting category subsets. • Unified attachments: Upload once and let LibreChat route content to the model or extracted text, then provision File Search and Code tools only when needed. • Models: Added GPT-6 Astra and GPT-6.1 Sol, with Responses API routing and tool-call support. • Agent and chat…