How to Use the Instantly MCP in Pydantic AI
Use Pydantic AI with Instantly to enforce type-safe cold email management and reliable campaign automation for your production systems.
Works with every AI agent you already use
…and any MCP-compatible client
Connect Instantly MCP to Pydantic AI
Create your Vinkius account to connect Instantly to Pydantic AI and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.
Type-safe campaigns for Pydantic AI
Every response from the `list_subsequences` tool is validated against your Pydantic models. You catch schema mismatches before they break your logic. Your Pydantic AI agent maintains strict integrity. It only processes clean, expected data.
Reliable execution with Pydantic AI
The agent executes `pause_campaign` or `resume_campaign` with strict type checking. If the API returns garbage, the agent rejects it immediately. This prevents silent failures in your production pipeline. You get predictable behavior every time the agent acts.
Lead validation for Pydantic AI
When you use `list_leads`, the agent ensures the data matches your requirements. It filters out corrupted records before they impact your outreach. Your Pydantic AI agent builds a reliable view of your leads. You avoid the headache of malformed records.
Set up Instantly MCP in Pydantic AI
Prerequisites
- Python 3.10+ installed
-
pydantic-ai-slim[fastmcp]package - Active Vinkius subscription with a valid endpoint token
- 1
Install Pydantic AI with FastMCP
Run
pip install "pydantic-ai-slim[fastmcp]". The FastMCP toolset replaces the deprecatedMCPServerHTTPclass with full protocol support. - 2
Configure the FastMCPToolset
Pass a JSON-style config dict to
FastMCPToolsetwith your Vinkius URL. Replace[YOUR_TOKEN_HERE]with your token from cloud.vinkius.com. Supports Streamable HTTP, SSE, and Stdio transports. - 3
Create and run your agent
Pass the toolset to
Agent(toolsets=[toolset])and callagent.run(). Swapopenai:gpt-4ofor any supported model — Anthropic, Google, Mistral, or Groq.
from pydantic_ai import Agent
from pydantic_ai.toolsets.fastmcp import FastMCPToolset
toolset = FastMCPToolset({
"mcpServers": {
"instantly-mcp": {
"url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
}
}
})
agent = Agent(
"openai:gpt-4o",
toolsets=[toolset],
system_prompt="You have access to Instantly tools.",
)
result = await agent.run("List recent Instantly transactions")
print(result.output)Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Instantly. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.
Why Choose Vinkius
Vinkius connects your tools to AI with real-time monitoring and automatic cost savings — all from one dashboard.
Real-time monitoring
Live
visibility into every interaction
Connect your favorite tools to your AI and see exactly what's happening — every request, every response, in real time.
Built-in savings
60%
lower AI costs
Vinkius compresses data between your apps and your AI automatically. Lower bills every month — no configuration required.
Single dashboard
One
place for every integration
Every tool your AI connects to, managed from a single screen. One account, complete control.
Common questions about Instantly MCP in Pydantic AI
Use it with your favorite AI tools
Connect this server to Cursor, Claude, VS Code, and more.
Start using the Instantly MCP today
We host it, we monitor it, we maintain it. You just paste one token.
