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Enhanced ChatGPT Clone: Features Agents, MCP, 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.
https://librechat.ai/
aianthropicartifactsawsazurechatgptchatgpt-cloneclaudeclonedeepseekgeminigooglegpt-5librechatmcpo1openairesponses-apivisionwebui
f02ce63d57
* ✂️ fix: Strip Redundant Server-Name Prefixes from MCP Tool Keys MCP servers that prefix every tool with their own name produce model-facing keys that embed the server twice once the _mcp_<server> suffix is appended, pushing long tool names past provider 64-character function-name limits. Tool keys now drop a leading <normalizedServerName>_ prefix (case-insensitive, skipped when a sibling tool already owns the stripped name). The original upstream name is recorded as serverToolName on the cached definition and is always what tool calls send to the server, and runtime lookups also try the stripped spelling of persisted pre-strip keys so existing agents keep resolving. * 🩹 fix: Keep Stripped MCP Tool Keys Provider-Safe and Collision-Free Assistant writers submit catalog entries verbatim, so the internal serverToolName mapping is now removed from provider-facing definitions before they reach create/update payloads. Prefix stripping is collision-guarded over the resulting name set rather than raw siblings only, which also covers case-variant prefixed pairs under the case-insensitive match. Assistant payload healing now rewrites a pre-strip persisted key to the stripped catalog key when that key actually exists in the loaded definitions, and legacy agent references keep their persisted spelling as the runtime instance name so per-tool options stay applied while the upstream call still uses the matched entry's raw name. * 🧷 fix: Harden Stripped MCP Tool Keys Against Heal, Collision, and Cache Edges The pre-strip heal now resolves the key boundary against both raw and normalized server spellings, mapping back to the raw name for the shadow and membership guards, so keys persisted after server-name normalization heal too. Collision detection iterates to a fixpoint so a fallback to a raw name cannot silently collide with another sibling's stripped result, and a stripped remainder equal to a synthetic marker (wildcard or server pin) is never produced. MCP catalog cache slices are versioned so replicas that predate serverToolName never read stripped entries during a rolling deploy; stale slices expire on their own. * 🔎 fix: Resolve Pre-Strip Keys in Event-Driven Definitions and Reinspect Persisted Catalogs The event-driven definitions loader now tries the stripped spelling of a persisted key when the exact lookup misses, keeping the persisted name so it matches the runtime instance, which stops legacy agents from failing initialization with expected tools unavailable. The registry storage schema version is bumped so followers rebuild persisted toolFunctions instead of republishing pre-strip definitions into the versioned catalog namespace. The assistants heal also fails closed when a normalized-suffix reference lands on a contested server-name slot, since rewriting persisted data must not bind an ambiguous reference to the tie-break winner. * 🛰️ fix: Reserve the Synthetic OAuth Name and Heal User-Owned Server Keys A stripped remainder equal to oauth would make the client stream handlers treat a real tool call as a synthetic authentication prompt, so it joins the reserved remainders alongside the wildcard and pin markers. The assistants heal now audits the FULL accessible server set on every run instead of operator config names only, since assistants reference user-owned servers whose catalogs the definitions loader already resolves; an unavailable audit still skips healing entirely. * 🧬 fix: Verify Upstream Identity for Legacy Keys and Reserve Sibling Raw Names Stripped results now reserve every sibling's raw name even when that sibling itself strips, so a stripped key can never shadow another tool's pre-rollout persisted references within the same snapshot. Every legacy fallback (runtime lookup, event-driven definitions, assistants heal) accepts a stripped-spelling match only when the entry's recorded serverToolName proves the same upstream tool, so a stale key for a removed tool degrades to unavailable instead of calling a different sibling. To keep that identity visible to the heal, assistant tool definitions retain serverToolName and the controllers sanitize entries through toProviderToolDefinition at the provider submission boundary instead. The agent editor migrates pre-strip persisted ids the same identity-verified way, with the upstream name exposed on the MCP tools payload. * 🧭 fix: Heal Wildcard Tool Options and Reserve the OAuth Namespace Wildcard-expanded catalogs rename stripped tools without any agent.tools entry to preserve the spelling, so buildToolClassification now aliases persisted pre-strip tool_options keys onto the current instance names in place, identity-gated on the definition's recorded upstream name and never overriding an explicit entry. Both loading modes flow through it: instances carry mcpServerToolName from createToolInstance and event-driven definitions thread serverToolName from the catalog. stripServerNamePrefix also reserves the entire oauth namespace rather than the exact name, since the client stream handlers classify every oauth-prefixed key as a synthetic authentication call. * 🛡️ fix: Derive the Full Reserved Namespace and Heal Approval Policies The reservation guard now covers every namespace consumers classify by prefix: the wildcard and server-pin markers alongside oauth, plus the server-scoped mcp_ pluginKey namespace that pre-strip keys could never enter. Stripping also never produces a key whose isActionTool classification differs from the raw key's, since a server whose normalized name contains _action_ would otherwise see a real MCP tool routed down the OpenAPI action path past MCP authorization. Admin toolApproval globs written against upstream tool naming keep applying: pattern lists are healed at run wiring with the current names of tools whose pre-strip spelling matches, list-level so deny, ask, and allow precedence is unchanged and a non-matching deny can no longer fail open. The MCP tools wire type also declares serverToolName end to end. * 🪪 fix: Alias Both Key Spellings for Approval Policies and Hook Matchers Identity aliases are now collected once at tool classification, in both directions: a stripped instance aliases its pre-strip spelling and a legacy-named instance aliases its current catalog spelling, with the current name recorded on legacy matches by the runtime lookup and the event-driven definitions loader alike. The aliases ride the agent config through both loading modes, so approval pattern healing applies to deny rules written against either spelling, closing the bypass where a rule targeting the current name missed an unedited agent's legacy instance. Programmatic approval hook matchers get the same treatment: each hook is additionally registered under an anchored exact-name pattern for tools whose other spelling its regex matches, keeping the admin's matcher semantics intact while argument, user, and tenant specific deny or ask decisions keep executing for renamed tools. * 🔁 fix: Alias Tool Options in Both Spelling Directions Options aliasing now consumes the same bidirectional alias pairs as policy healing and hook matchers, so options the editor migrated to the current catalog spelling still reach a legacy-named instance retained by an unedited agent.tools entry. The previous serverToolName-only derivation skipped exactly that case since the legacy key equals the instance name there. * 🤝 fix: Reserve the Agent Handoff Namespace Before Stripping The client renders any lc_transfer_to_ prefixed call as an agent handoff and the background and intent passes exclude such names, so a stripped remainder inside that namespace would misclassify a real upstream tool. It joins the mcp_ pluginKey namespace as a bare-prefix reservation, which pre-strip keys could never enter. * ⚡ fix: Reuse the Loader's Server Snapshot and Index the Editor Catalog getAssistantToolDefinitions now returns the accessible-server snapshot from the same merged registry read that resolved the catalogs, and the heal consumes it instead of repeating the app-config and registry round trips on the assistant write path; without a snapshot the heal still fetches and fails closed as before. The agent editor's id migration uses a memoized tool_id map, so the per-key form heal does constant-time lookups instead of scanning the catalog per option. --------- Co-authored-by: Danny Avila <danny@librechat.ai> |
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LibreChat
English · 中文
🚀 What's New in v0.8.8-rc1
- Agent run control: Interrupt or steer an Agent mid-run, queue follow-up messages, and reclaim, edit, or escalate pending steers.
- Human-in-the-loop Agents: Agents stream question progress, ask up to four related questions in one form, pause for input or tool approval, and resume.
- Unified Agent Builder: A redesigned Tools marketplace brings together Skills, MCP, Code Interpreter, orchestration, Programmatic Tool Calling, model-spec controls, and per-tool background and intent settings.
- Readable Agent activity: Generated activity-group headers, parent phase summaries, and live tool intent labels make long reasoning and tool runs easier to scan.
- Code Interpreter workflows: Code and shell tools can run in the background, sandbox images return as viewable artifacts, and highly experimental stateful sessions can reuse prewarmed conversation workspaces.
- Agent extensibility: Experimental Agent Plugins can bundle deployment Skills, MCP servers, and opt-in command hooks, while explicit subagents initialize only when selected.
- Memory, context, and identity: Agents can manage memory with optional per-agent isolation, expose support contacts safely, and show a more faithful Context Usage gauge.
- Sharing and files: Shared conversations show a badge and update at a stable URL, while signed-in viewers can continue them as personal copies.
- Artifact workflows: Open previews fullscreen, work with PowerPoint
.potxtemplates across upload, search, and code execution, upload shell scripts across common MIME variants, export Mermaid diagrams as SVG or PNG, and download original Office files from the artifact panel. - Models and reasoning: Added GPT-5.6 with Responses API reasoning controls, Claude Opus 5 and Sonnet 5, Gemini 3.7 and 3.6 Flash, and Gemini 3.5 Flash-Lite.
- Langfuse observability: Configure encrypted Langfuse connections in-app, let authorized admins open sampled sessions directly, optionally fan out traces by tenant, and suppress central export per run.
- Administration and security: Delegate config sections, encrypt registered secrets, enforce SSRF checks for speech, OCR, and web tools, and generate unique temporary credentials when secrets are blank.
- Messages and navigation: Right-aligned user turns, unified multi-part editing, full-message copy, a dock-style message rail, virtualized search, smooth streaming, and faster Agent startup.
- Streaming and tool reliability: Adaptive provider smoothing, Redis delta batching, dynamic MCP tool refresh, parsed MCP response media types, runtime OAuth recovery, and Agent stream circuit breakers improve long-running workflows.
- Deployment and reliability: Added configurable HTTP timeouts, Amazon DocumentDB 5.0+ support, low-noise Redis and browser observability, and a rolling-upgrade-safe generation protocol.
Read the full v0.8.8-rc1 changelog.
✨ Features
-
🖥️ UI & Experience inspired by ChatGPT with enhanced design and features
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🤖 AI Model Selection:
- Anthropic (Claude), AWS Bedrock, OpenAI, Azure OpenAI, Google, Vertex AI, OpenAI Responses API (incl. Azure)
- Custom Endpoints: Use any OpenAI-compatible API with LibreChat, no proxy required
- Compatible with Local & Remote AI Providers:
- Ollama, groq, Cohere, Mistral AI, Apple MLX, koboldcpp, together.ai,
- OpenRouter, Helicone, Perplexity, ShuttleAI, Deepseek, Qwen, and more
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- Secure, Sandboxed Execution in Python, Node.js (JS/TS), Go, C/C++, Java, PHP, Rust, and Fortran
- Seamless File Handling: Upload, process, and download files directly
- No Privacy Concerns: Fully isolated and secure execution
- Open-Source & Self-Hostable: powered by ClickHouse/code-interpreter
-
🔦 Agents & Tools Integration:
- LibreChat Agents:
- No-Code Custom Assistants: Build specialized, AI-driven helpers
- Agent Marketplace: Discover and deploy community-built agents
- Collaborative Sharing: Share agents with specific users and groups
- Flexible & Extensible: Use MCP Servers, tools, file search, code execution, and more
- Skills: Create reusable
SKILL.mdinstruction bundles for manual, automatic, or always-on agent workflows - Agent Plugins: Experimentally bundle deployment Skills and MCP servers into startup-loaded packages
- Subagents: Delegate focused work to isolated child agent runs with their own context windows
- Compatible with Custom Endpoints, OpenAI, Azure, Anthropic, AWS Bedrock, Google, Vertex AI, Responses API, and more
- Model Context Protocol (MCP) Support for Tools
- LibreChat Agents:
-
🔍 Web Search:
- Search the internet and retrieve relevant information to enhance your AI context
- Combines search providers, content scrapers, and result rerankers for optimal results
- Customizable Jina Reranking: Configure custom Jina API URLs for reranking services
- Learn More →
-
🪄 Generative UI with Code Artifacts:
- Code Artifacts create React, HTML, and Mermaid content directly in chat
- Open previews fullscreen and export Mermaid diagrams as SVG or PNG
-
🎨 Image Generation & Editing
- Text-to-image and image-to-image with GPT-Image-1
- Text-to-image with DALL-E (3/2), Stable Diffusion, Flux, or any MCP server
- Produce stunning visuals from prompts or refine existing images with a single instruction
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💾 Presets & Context Management:
- Create, Save, & Share Custom Presets
- Switch between AI Endpoints and Presets mid-chat
- Edit, Resubmit, and Continue Messages with Conversation branching
- Create and share prompts with specific users and groups
- Fork Messages & Conversations for Advanced Context control
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💬 Multimodal & File Interactions:
- Upload and analyze images with Claude 3, GPT-4.5, GPT-4o, o1, Llama-Vision, and Gemini 📸
- Chat with Files using Custom Endpoints, OpenAI, Azure, Anthropic, AWS Bedrock, & Google 🗃️
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🌎 Multilingual UI:
- English, 中文 (简体), 中文 (繁體), العربية, Deutsch, Español, Français, Italiano
- Polski, Português (PT), Português (BR), Русский, 日本語, Svenska, 한국어, Tiếng Việt
- Türkçe, Nederlands, עברית, Català, Čeština, Dansk, Eesti, فارسی
- Suomi, Magyar, Հայերեն, Bahasa Indonesia, ქართული, Latviešu, ไทย, ئۇيغۇرچە
-
🧠 Reasoning UI:
- Dynamic Reasoning UI for Chain-of-Thought/Reasoning AI models like DeepSeek-R1
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🎨 Customizable Interface:
- Customizable Dropdown & Interface that adapts to both power users and newcomers
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- Never lose a response: AI responses automatically reconnect and resume if your connection drops
- Multi-Tab & Multi-Device Sync: Open the same chat in multiple tabs or pick up on another device
- Production-Ready: Works from single-server setups to horizontally scaled deployments with Redis
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🗣️ Speech & Audio:
- Chat hands-free with Speech-to-Text and Text-to-Speech
- Automatically send and play Audio
- Supports OpenAI, Azure OpenAI, and Elevenlabs
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📥 Import & Export Conversations:
- Import Conversations from LibreChat, ChatGPT, Chatbot UI
- Export conversations as screenshots, markdown, text, json
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🔍 Search & Discovery:
- Search all messages/conversations
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👥 Multi-User & Secure Access:
- Multi-User, Secure Authentication with OAuth2, LDAP, & Email Login Support
- Built-in Moderation, and Token spend tools
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🎛️ Admin Panel:
- Browser-based UI to manage users, groups, roles, and configuration overrides
- Edit settings and per-role/group permissions live, without redeploying
- Bundled with the Docker Compose stacks for one-command setup
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⚙️ Configuration & Deployment:
- Configure Proxy, Reverse Proxy, Docker, & many Deployment options
- Use S3 with CloudFront for stable media links, edge delivery, signed cookies, and secured downloads
- Use completely local or deploy on the cloud
-
📖 Open-Source & Community:
- Completely Open-Source & Built in Public
- Community-driven development, support, and feedback
For a thorough review of our features, see our docs here 📚
🪶 All-In-One AI Conversations with LibreChat
LibreChat is a self-hosted AI chat platform that unifies all major AI providers in a single, privacy-focused interface.
Beyond chat, LibreChat provides AI Agents, Model Context Protocol (MCP) support, Artifacts, Code Interpreter, custom actions, conversation search, and enterprise-ready multi-user authentication.
Open source, actively developed, and built for anyone who values control over their AI infrastructure.
🌐 Resources
GitHub Repo:
- RAG API: github.com/danny-avila/rag_api
- Website: github.com/LibreChat-AI/librechat.ai
Other:
- Website: librechat.ai
- Documentation: librechat.ai/docs
- Blog: librechat.ai/blog
📝 Changelog
Keep up with the latest updates by visiting the releases page and notes:
⚠️ Please consult the changelog for breaking changes before updating.
⭐ Star History
✨ Contributions
Contributions, suggestions, bug reports and fixes are welcome!
For new features, components, or extensions, please open an issue and discuss before sending a PR.
If you'd like to help translate LibreChat into your language, we'd love your contribution! Improving our translations not only makes LibreChat more accessible to users around the world but also enhances the overall user experience. Please check out our Translation Guide.
💖 This project exists in its current state thanks to all the people who contribute
🎉 Special Thanks
We thank Locize for their translation management tools that support multiple languages in LibreChat.