Bring Campaign Management
to Pydantic AI
Create your Vinkius account to connect Mail Blaze to Pydantic AI and start using all 9 AI tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code. No hosting, no server setup — just connect and start using.
Compatible with every major AI agent and IDE
What is the Mail Blaze MCP Server?
Connect your Mail Blaze account to any AI agent to automate your email marketing and audience management. This MCP server enables your agent to manage subscriber lists, create and send campaigns, and track subscriber updates directly from natural language interfaces.
What you can do
- Campaign Management — List all email campaigns and retrieve detailed metadata and status information
- Instant Sending — Trigger the delivery of existing campaigns to your targeted lists instantly
- List Oversight — Manage subscriber lists and retrieve their unique identifiers for grouping
- Subscriber Control — Add, update, and remove subscribers from specific lists while managing custom fields
- Draft Creation — Initialize new campaign drafts directly from your conversation to streamline your marketing workflow
How it works
- Subscribe to this server
- Enter your Mail Blaze API Public Key (X-MW-PUBLIC-KEY)
- Start managing your email marketing from Claude, Cursor, or any MCP-compatible client
Who is this for?
- Email Marketers — Monitor campaign statuses and manage subscriber segments via simple natural language commands
- Marketing Operations — Quickly update contact information and trigger campaign sends without opening the dashboard
- Developers — Integrate email automation logic and subscriber management into your custom internal tools
Built-in capabilities (9)
Requires a list UID and subscriber data. Add a new subscriber to a list
Requires a JSON body with campaign details. Create a new email marketing campaign
Remove a subscriber from a list
Get details for a specific campaign
List all email marketing campaigns
List subscribers in a specific list
List all subscriber lists
Trigger the sending of a campaign
Update an existing subscriber
Why Pydantic AI?
Pydantic AI validates every Mail Blaze tool response against typed schemas, catching data inconsistencies at build time. Connect 9 tools through Vinkius and switch between OpenAI, Anthropic, or Gemini without changing your integration code. full type safety, structured output guarantees, and dependency injection for testable agents.
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Full type safety: every MCP tool response is validated against Pydantic models, catching data inconsistencies before they reach your application
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Model-agnostic architecture. switch between OpenAI, Anthropic, or Gemini without changing your Mail Blaze integration code
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Structured output guarantee: Pydantic AI ensures tool results conform to defined schemas, eliminating runtime type errors
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Dependency injection system cleanly separates your Mail Blaze connection logic from agent behavior for testable, maintainable code
Mail Blaze in Pydantic AI
Why run Mail Blaze with Vinkius?
The Mail Blaze connection runs on our fully managed, secure cloud infrastructure. We handle the hosting, maintenance, and security so you don't have to deal with servers or code. All 9 tools are ready to work instantly without any complex setup.
You stay in complete control of your data. Your AI only accesses the information you approve, keeping your sensitive passwords and private details completely safe. Plus, with automatic optimizations, your AI works faster and more efficiently.

* Every connection is hosted and maintained by Vinkius. We handle the security, updates, and infrastructure so you don't have to write code or manage servers. See our infrastructure
Over 4,000 integrations ready for AI agents
Explore a vast library of pre-built integrations, optimized and ready to deploy.
Connect securely in under 30 seconds
Generate tokens to authenticate and link external services in a single step.
Complete visibility into every agent action
Audit live requests, latency, success rates, and active security compliance policies.
Optimize spending and track token ROI
Analyze real-time token consumption and cost metrics detailed by connection.




Explore our live AI Agents Analytics dashboard to see it all working
This dashboard is included when you connect Mail Blaze using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.
Mail Blaze and 4,000+ other AI tools. No hosting, no code, ready to use.
Professionals who connect Mail Blaze to Pydantic AI through Vinkius don't need to write code, manage servers, or worry about security. Everything is pre-configured, secure, and runs automatically in the background.
Raw MCP | Vinkius | |
|---|---|---|
| Ready-to-use MCPs | Find and configure each manually | 4,000+ MCPs ready to use |
| Connection Setup | Manual coding & server setup | 1-click instant connection |
| Server Hosting | You host it yourself (needs 24/7 uptime) | 100% hosted & managed by Vinkius |
| Security & Privacy | Stored in plaintext config files | Bank-grade encrypted vault |
| Activity Visibility | Blind execution (no logs or tracking) | Live dashboard with real-time logs |
| Cost Control | Runaway AI token spend risk | Automatic budget limits |
| Revoking Access | Must delete files or code to stop | 1-click disconnect button |
How Vinkius secures
Mail Blaze for Pydantic AI
Every request between Pydantic AI and Mail Blaze is protected by our secure gateway. We automatically keep your sensitive data private, prevent unauthorized access, and let you disconnect instantly at any time.
Frequently asked questions
How do I find my List UID or Campaign UID?
You can retrieve all UIDs by using the list_subscriber_lists or list_email_campaigns tools. They are also visible in the URL when viewing these resources in the Mail Blaze dashboard.
Can I add custom fields when subscribing a user?
Yes, include your custom field values within the subscriber_json object when using the add_subscriber_to_list tool.
Is there a limit to the number of subscribers I can retrieve?
The API uses pagination. The list_list_subscribers tool retrieves the first page of results (up to 100 records by default).
How does Pydantic AI discover MCP tools?
Create an MCPServerHTTP instance with the server URL. Pydantic AI connects, discovers all tools, and generates typed Python interfaces automatically.
Does Pydantic AI validate MCP tool responses?
Yes. When you define result types as Pydantic models, every tool response is validated against the schema. Invalid data raises a clear error instead of silently corrupting your pipeline.
Can I switch LLM providers without changing MCP code?
Absolutely. Pydantic AI abstracts the model layer. your Mail Blaze MCP integration works identically with OpenAI, Anthropic, Google, or any supported provider.
MCPServerHTTP not found
Update: pip install --upgrade pydantic-ai
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