Open Webui Plugins
A curated collection of Open WebUI plugins - tools, skills, filters, pipes, and actions that extend your AI chat experience.
Install
$ agentstack add mcp-classic298-open-webui-plugins ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Links to your public security report.[](https://agentstack.voostack.com/security/report/mcp-classic298-open-webui-plugins) Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
🧩 Open WebUI Plugins
A curated collection of plugins for Open WebUI — tools, skills, filters, pipes, and actions that extend your AI chat experience.
Each plugin lives in its own folder with a README explaining what it does, what components it includes, and how to set it up.
Plugins
| Plugin | Description | Components | |--------|-------------|------------| | [Inline Visualizer v2](inline-visualizer-v2/) | 🔹 LIVE RENDERED 🔹 interactive HTML/SVG visualizations inline in chat. Full design system with theme-aware colors, SVG utilities, pre-styled bare HTML (forms, tables, `, , …), a **9-color data-accent palette**, and six interactive bridges for conversational drill-down - talk to your visualizations, dashboards, charts, maps etc. - First-class support for Chart.js, D3, Vega-Lite, ECharts, Plotly, vis-network, and Tone.js. | Tool + Skill | | [Keep reasoning_content](keep-reasoning-content/) | ⭐ **NEW** ⭐ Keeps your reasoning model's chain of thought intact across tool calls and follow-up turns, so it no longer "forgets" why it called a tool a moment ago or breaks mid-tool-call with a reasoning_content is missing error. Open WebUI normally throws away the model's prior reasoning before sending the next request; this filter feeds it back, so DeepSeek / Kimi / MiMo / vLLM and other reasoning models stay coherent across an entire conversation. | Filter | | [Email Composer](email-composer/) | AI-powered email drafting with an interactive Rich UI card. Rich text editing, To/CC/BCC chips, priority, download .eml, one-click send via mailto. | Tool | | [MCP App Bridge](mcp-app-bridge/) | Renders MCP Apps (SEP-1865) as Rich UI embeds. Connects to MCP servers, calls tools with ui://` resources, injects server-declared CSP, and renders the HTML inline — no middleware changes needed. | Tool | | [Inline Visualizer](inline-visualizer/) | 🗄️ LEGACY (v1) 🗄️ Interactive HTML/SVG visualizations inline in chat. Full design system with theme-aware colors, SVG utilities, Chart.js/D3 support, and a sendPrompt bridge for conversational drill-down. | Tool + Skill |
Plugin Types
| Type | What it does | Where to install | |------|-------------|-----------------| | Tools | Give your model new capabilities it can call (web search, APIs, rendering) | Workspace → Tools | | Skills | Structured instructions that teach a model how to do specified tasks or workflows | Workspace → Skills | | Filters | Transform messages before they reach the model or before they're shown to you | Admin Panel → Functions | | Pipes | Custom model endpoints — proxy, merge, or create entirely new model behaviors | Admin Panel → Functions | | Actions | Buttons that appear below messages for quick actions | Admin Panel → Functions |
How to Install
- Open the plugin's folder and read its README for specific instructions
- Each README lists the components (tool, skill, filter, etc.) and where to install them
- Some plugins are a single file, others are multi-component — the README will guide you
Each plugin folder is self-contained with all necessary files and documentation.
Contributing
Found a bug or have an idea? Open an issue.
Source & license
This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: Classic298
- Source: Classic298/open-webui-plugins
- License: BSD-3-Clause
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.