How do I find my List UID or Campaign UID?

You can retrieve all UIDs by using the `list_subscriber_collections` or `list_email_campaigns` tools. They are also visible in the URL when viewing these resources in your MailWizz dashboard.

Can I add custom fields when subscribing a user?

Yes, include your custom field values (like FNAME, LNAME) within the `subscriber_json` object when using the `add_subscriber_to_list` tool.

This is the full base URL where your MailWizz API is reachable, for example: `https://mail.yourdomain.com/api`. Your token is encrypted at rest and injected securely at runtime.

MailWizz MCP Server for LlamaIndex 9 tools — connect in under 2 minutes

Name: MailWizz
Availability: InStock
Author: Vinkius

docs.llamaindex.ai/en/stable/module_guides/tools/mcp

Built by Vinkius GDPR 9 Tools Framework

LlamaIndex specializes in data-aware AI agents that connect LLMs to structured and unstructured sources. Add MailWizz as an MCP tool provider through Vinkius and your agents can query, analyze, and act on live data alongside your existing indexes.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

python

import asyncio
from llama_index.tools.mcp import BasicMCPClient, McpToolSpec
from llama_index.core.agent.workflow import FunctionAgent
from llama_index.llms.openai import OpenAI

async def main():
    # Your Vinkius token. get it at cloud.vinkius.com
    mcp_client = BasicMCPClient("https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp")
    mcp_tool_spec = McpToolSpec(client=mcp_client)
    tools = await mcp_tool_spec.to_tool_list_async()

    agent = FunctionAgent(
        tools=tools,
        llm=OpenAI(model="gpt-4o"),
        system_prompt=(
            "You are an assistant with access to MailWizz. "
            "You have 9 tools available."
        ),
    )

    response = await agent.run(
        "What tools are available in MailWizz?"
    )
    print(response)

asyncio.run(main())

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* 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 MailWizz MCP Server

Connect your MailWizz instance to any AI agent to automate your professional email marketing and audience management. This MCP server enables your agent to manage subscriber lists, control campaign lifecycles, and update subscriber data directly from natural language interfaces.

LlamaIndex agents combine MailWizz tool responses with indexed documents for comprehensive, grounded answers. Connect 9 tools through Vinkius and query live data alongside vector stores and SQL databases in a single turn. ideal for hybrid search, data enrichment, and analytical workflows.

What you can do

Campaign Oversight — List all email campaigns and retrieve detailed metadata and status information
Mailing Control — Pause or unpause campaigns and manage their delivery lifecycle programmatically
Audience Management — List all subscriber collections (lists) and retrieve their unique identifiers
Subscriber Administration — Add, update, and remove subscribers from specific lists using their UIDs
Data Ingestion — Sync subscriber information and manage custom fields across your email databases
Self-Hosted Support — Works with any self-hosted MailWizz instance using your personal API keys

The MailWizz MCP Server exposes 9 tools through the Vinkius. Connect it to LlamaIndex in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect MailWizz to LlamaIndex via MCP

Follow these steps to integrate the MailWizz MCP Server with LlamaIndex.

Install dependencies

Run pip install llama-index-tools-mcp llama-index-llms-openai

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Run the agent

Save to agent.py and run: python agent.py

Explore tools

The agent discovers 9 tools from MailWizz

Why Use LlamaIndex with the MailWizz MCP Server

LlamaIndex provides unique advantages when paired with MailWizz through the Model Context Protocol.

Data-first architecture: LlamaIndex agents combine MailWizz tool responses with indexed documents for comprehensive, grounded answers

Query pipeline framework lets you chain MailWizz tool calls with transformations, filters, and re-rankers in a typed pipeline

Multi-source reasoning: agents can query MailWizz, a vector store, and a SQL database in a single turn and synthesize results

Observability integrations show exactly what MailWizz tools were called, what data was returned, and how it influenced the final answer

MailWizz + LlamaIndex Use Cases

Practical scenarios where LlamaIndex combined with the MailWizz MCP Server delivers measurable value.

Hybrid search: combine MailWizz real-time data with embedded document indexes for answers that are both current and comprehensive

Data enrichment: query MailWizz to augment indexed data with live information before generating user-facing responses

Knowledge base agents: build agents that maintain and update knowledge bases by periodically querying MailWizz for fresh data

Analytical workflows: chain MailWizz queries with LlamaIndex's data connectors to build multi-source analytical reports

MailWizz MCP Tools for LlamaIndex (9)

These 9 tools become available when you connect MailWizz to LlamaIndex via MCP:

add_subscriber_to_list

Requires a list UID and subscriber data. Add a new subscriber to a list

delete_list_subscriber

Remove a subscriber from a list

get_campaign_details

Get details for a specific campaign

get_list_details

Get details for a specific subscriber list

list_email_campaigns

List all email marketing campaigns

list_list_subscribers

List subscribers in a specific list

list_subscriber_collections

List all subscriber lists

pause_email_campaign

Pause a running campaign

update_list_subscriber

Update an existing subscriber

Example Prompts for MailWizz in LlamaIndex

Ready-to-use prompts you can give your LlamaIndex agent to start working with MailWizz immediately.

"List all active email campaigns in MailWizz."

"Add 'user@example.com' to my 'Main Leads' list (UID: 'lz987xyz')."

"Pause the email campaign with UID 'cp456def'."

Troubleshooting MailWizz MCP Server with LlamaIndex

Common issues when connecting MailWizz to LlamaIndex through the Vinkius, and how to resolve them.

BasicMCPClient not found

Install: pip install llama-index-tools-mcp

MailWizz + LlamaIndex FAQ

Common questions about integrating MailWizz MCP Server with LlamaIndex.

How does LlamaIndex connect to MCP servers?

Use the MCP client adapter to create a connection. LlamaIndex discovers all tools and wraps them as query engine tools compatible with any LlamaIndex agent.

Can I combine MCP tools with vector stores?

Yes. LlamaIndex agents can query MailWizz tools and vector store indexes in the same turn, combining real-time and embedded data for grounded responses.