# Open Webui Plugins

> A curated collection of Open WebUI plugins - tools, skills, filters, pipes, and actions that extend your AI chat experience.

- **Type:** MCP server
- **Install:** `agentstack add mcp-classic298-open-webui-plugins`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [Classic298](https://agentstack.voostack.com/s/classic298)
- **Installs:** 0
- **Category:** [AI & ML](https://agentstack.voostack.com/c/ai-and-ml)
- **Latest version:** 0.1.0
- **License:** BSD-3-Clause
- **Upstream author:** [Classic298](https://github.com/Classic298)
- **Source:** https://github.com/Classic298/open-webui-plugins

## Install

```sh
agentstack add mcp-classic298-open-webui-plugins
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# 🧩 Open WebUI Plugins

A curated collection of plugins for [Open WebUI](https://github.com/open-webui/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

1. Open the plugin's folder and read its **README** for specific instructions
2. Each README lists the components (tool, skill, filter, etc.) and where to install them
3. 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](https://github.com/Classic298)
- **Source:** [Classic298/open-webui-plugins](https://github.com/Classic298/open-webui-plugins)
- **License:** BSD-3-Clause

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/mcp-classic298-open-webui-plugins
- Seller: https://agentstack.voostack.com/s/classic298
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.