How to Use the Hostaway MCP in Pydantic AI

Q: How do I query specific property details?

Your agent calls getlisting with the target property ID to retrieve amenities and check-in rules. The framework validates the returned listing object against your Python types.

Build type-safe Hostaway automation pipelines using Pydantic AI to validate rental listings and reservation data at runtime.

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Connect Hostaway MCP to Pydantic AI

Create your Vinkius account to connect Hostaway 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.

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Setup Hostaway with Pydantic AI

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Validate reservations with this Hostaway MCP Server

The `list_reservations` tool pulls active bookings, guest counts, and check-in times from your properties. Pydantic AI validates this payload against strict Python schemas at runtime to prevent malformed API responses from breaking your code. If Hostaway returns unexpected null values or missing fields, your pipeline raises a validation error immediately. This loud failure prevents downstream automation from sending corrupted check-in instructions to your guests.

Run type-safe financial audits

The `get_financials` tool extracts payout breakdowns, cleaning fees, and base rates for specific stays. Your Pydantic AI agent parses this numerical data to ensure every fee maps to a valid float. Combining this with `get_calendar` allows you to calculate exact revenue per available room. You can trust the math because the framework blocks hallucinated fields before they reach your accounting models.

Audit guest chats using Pydantic AI

The `list_conversations` tool retrieves message logs and channel origins for guest inquiries. Your agent processes these threads to classify guest intent into predefined Pydantic models. When you pull data via `get_reservation` to draft replies, the framework ensures the booking ID matches your exact type constraints. This prevents your agent from cross-referencing the wrong guest's details during a conversation.

Setup guide

Set up Hostaway 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 deprecated MCPServerHTTP class with full protocol support.
2

Configure the FastMCPToolset
Pass a JSON-style config dict to FastMCPToolset with 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 call agent.run(). Swap openai:gpt-4o for any supported model — Anthropic, Google, Mistral, or Groq.

agent.py

from pydantic_ai import Agent
from pydantic_ai.toolsets.fastmcp import FastMCPToolset

toolset = FastMCPToolset({
    "mcpServers": {
        "hostaway-mcp": {
            "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
        }
    }
})

agent = Agent(
    "openai:gpt-4o",
    toolsets=[toolset],
    system_prompt="You have access to Hostaway tools.",
)

result = await agent.run("List recent Hostaway transactions")
print(result.output)

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Common questions about Hostaway MCP in Pydantic AI

You instantiate MCPToolset with your Vinkius HTTP URL and pass it to the Agent constructor. This exposes tools like `list_listings` to your type-safe agent.

The framework raises a validation error at runtime if the payload from tools like `list_reservations` violates your schema. This keeps your pipeline safe from API drift.

Yes, because Pydantic AI is model-agnostic, you can use these tools with local models or commercial APIs. The server handles the connection to Hostaway regardless of the LLM.

Your agent calls `get_listing` with the target property ID to retrieve amenities and check-in rules. The framework validates the returned listing object against your Python types.

Your guest conversation logs and Hostaway credentials are never stored on Vinkius servers. The Hostaway MCP Server requests run inside isolated, ephemeral V8 sandboxes that wipe all session memory instantly.

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