Open WebUI MCP Server for Mastra AIGive Mastra AI instant access to 12 tools to Add File To Collection, Chat Completed, Chat Completions, and more
GDPR Free for SubscribersMastra AI is a TypeScript-native agent framework built for modern web stacks. Connect Open WebUI through Vinkius and Mastra agents discover all tools automatically. type-safe, streaming-ready, and deployable anywhere Node.js runs.
Ask AI about this MCP Server for Mastra AI
The Open WebUI MCP Server for Mastra AI is a standout in the Loved By Devs category — giving your AI agent 12 tools to work with, ready to go from day one.
Vinkius delivers Streamable HTTP and SSE to any MCP client
Geminiimport { Agent } from "@mastra/core/agent";
import { createMCPClient } from "@mastra/mcp";
import { openai } from "@ai-sdk/openai";
async function main() {
// Your Vinkius token. get it at cloud.vinkius.com
const mcpClient = await createMCPClient({
servers: {
"open-webui": {
url: "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
},
},
});
const tools = await mcpClient.getTools();
const agent = new Agent({
name: "Open WebUI Agent",
instructions:
"You help users interact with Open WebUI " +
"using 12 tools.",
model: openai("gpt-4o"),
tools,
});
const result = await agent.generate(
"What can I do with Open WebUI?"
);
console.log(result.text);
}
main();
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
About Open WebUI MCP Server
Connect your Open WebUI instance to any AI agent and take full control of your local and cloud LLM orchestration through natural conversation.
Mastra's agent abstraction provides a clean separation between LLM logic and Open WebUI tool infrastructure. Connect 12 tools through Vinkius and use Mastra's built-in workflow engine to chain tool calls with conditional logic, retries, and parallel execution. deployable to any Node.js host in one command.
What you can do
- Model Management — Use
list_modelsto fetch all available models including Ollama, OpenAI, and Open WebUI Functions. - RAG & Knowledge Base — Upload files with
upload_file, process web content viaprocess_web_url, and organize them into collections usingadd_file_to_collection. - Chat Orchestration — Create and manage backend-controlled chats with
create_new_chator use OpenAI/Anthropic compatible endpoints likechat_completionsandsend_message. - Native Ollama Support — Directly interact with the Ollama API using
ollama_generate,ollama_tags, andollama_embedfor local inference tasks. - File Processing — Monitor the status of your document ingestion with
get_file_statusto ensure your RAG context is ready.
The Open WebUI MCP Server exposes 12 tools through the Vinkius. Connect it to Mastra AI in under two minutes — credentials fully managed, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.
All 12 Open WebUI tools available for Mastra AI
When Mastra AI connects to Open WebUI through Vinkius, your AI agent gets direct access to every tool listed below — spanning llm-management, rag, model-inference, and more. Every call runs in a secure, isolated environment with full audit visibility. Beyond a simple connection, you get real-time monitoring of agent activity, enterprise governance, and optimized token usage.
Add file to collection on Open WebUI
Add a file to a knowledge collection
Chat completed on Open WebUI
Run outlet filters for completed chat
Chat completions on Open WebUI
OpenAI-compatible chat completion
Create new chat on Open WebUI
Must generate UUIDs for message IDs. Create a new chat (Backend-Controlled Flow)
Get file status on Open WebUI
Check file processing status
List models on Open WebUI
Retrieve all models
Ollama embed on Open WebUI
Ollama API Embeddings
Ollama generate on Open WebUI
Ollama API Generate Completion
Ollama tags on Open WebUI
List Ollama models
Process web url on Open WebUI
Process a web URL into a collection
Send message on Open WebUI
Anthropic-compatible message generation
Upload file on Open WebUI
Content is extracted and stored in the vector DB. Provide file content as base64. Upload a file for RAG
Connect Open WebUI to Mastra AI via MCP
Follow these steps to wire Open WebUI into Mastra AI. The entire setup takes under two minutes — your credentials stay safe behind Vinkius.
Install dependencies
npm install @mastra/core @mastra/mcp @ai-sdk/openaiReplace the token
[YOUR_TOKEN_HERE] with your Vinkius tokenRun the agent
agent.ts and run with npx tsx agent.tsExplore tools
Why Use Mastra AI with the Open WebUI MCP Server
Mastra AI provides unique advantages when paired with Open WebUI through the Model Context Protocol.
Mastra's agent abstraction provides a clean separation between LLM logic and tool infrastructure. add Open WebUI without touching business code
Built-in workflow engine chains MCP tool calls with conditional logic, retries, and parallel execution for complex automation
TypeScript-native: full type inference for every Open WebUI tool response with IDE autocomplete and compile-time checks
One-command deployment to any Node.js host. Vercel, Railway, Fly.io, or your own infrastructure
Open WebUI + Mastra AI Use Cases
Practical scenarios where Mastra AI combined with the Open WebUI MCP Server delivers measurable value.
Automated workflows: build multi-step agents that query Open WebUI, process results, and trigger downstream actions in a typed pipeline
SaaS integrations: embed Open WebUI as a first-class tool in your product's AI features with Mastra's clean agent API
Background jobs: schedule Mastra agents to query Open WebUI on a cron and store results in your database automatically
Multi-agent systems: create specialist agents that collaborate using Open WebUI tools alongside other MCP servers
Example Prompts for Open WebUI in Mastra AI
Ready-to-use prompts you can give your Mastra AI agent to start working with Open WebUI immediately.
"List all models available in my Open WebUI instance."
"Process the URL 'https://docs.openwebui.com/' into my 'Documentation' collection."
"Generate a response using the 'llama3' model for the prompt 'Explain quantum computing'."
Troubleshooting Open WebUI MCP Server with Mastra AI
Common issues when connecting Open WebUI to Mastra AI through Vinkius, and how to resolve them.
createMCPClient not exported
npm install @mastra/mcpOpen WebUI + Mastra AI FAQ
Common questions about integrating Open WebUI MCP Server with Mastra AI.
How does Mastra AI connect to MCP servers?
MCPClient with the server URL and pass it to your agent. Mastra discovers all tools and makes them available with full TypeScript types.Can Mastra agents use tools from multiple servers?
Does Mastra support workflow orchestration?
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