How to Use the Ecwid MCP in Pydantic AI

Q: How do I register the Ecwid toolset with Pydantic AI?

Install the library via pip install "pydantic-ai-slimmcp" and initialize MCPToolset with your Vinkius HTTP URL. Pass this toolset directly into your Agent constructor using the toolsets argument.

Q: Can Pydantic AI safely modify my Ecwid product inventory?

Yes, your agent uses updateinventory to adjust stock counts. Because Pydantic AI enforces type safety, it guarantees that inventory updates are only sent as valid, non-negative integers.

Run type-safe Ecwid store automations with strict Pydantic AI validation.

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Connect Ecwid MCP to Pydantic AI

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Setup Ecwid with Pydantic AI

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Type-safe product and inventory sync

`get_product` retrieves detailed Ecwid pricing, variations, and SEO attributes, which Pydantic AI validates against strict Python models at runtime. If Ecwid returns unexpected product structures, your Pydantic AI agent catches the validation error instantly. When updating Ecwid stock levels, the Pydantic AI agent uses `update_inventory` to push clean, validated integer values back to your storefront. This guarantees that your Ecwid stock counts are never set to invalid or empty values.

Validated order and customer tracking via MCP Server

`search_orders` returns Ecwid order numbers, totals, and buyer details directly to your Pydantic AI agent. The Pydantic AI framework validates every field, ensuring Ecwid payment statuses and email formats match your expected schemas. Your Pydantic AI agent uses `get_order` to pull specific Ecwid transaction records and `search_customers` to verify buyer profiles. This strict validation loop stops bad Ecwid data from breaking downstream shipping pipelines.

Store profile and coupon verification

`get_profile` imports your Ecwid store configuration into a typed Pydantic AI model for safe local inspection. The Pydantic AI agent uses `list_coupons` to verify active Ecwid discounts, ensuring coupon codes conform to your business rules. By reading your Ecwid store structure via `list_categories` and storing session states in `get_app_storage`, your Pydantic AI application remains predictable. This architecture keeps your Ecwid integrations stable even when payloads change.

Setup guide

Set up Ecwid 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": {
        "ecwid-mcp": {
            "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
        }
    }
})

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

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

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Common questions about Ecwid MCP in Pydantic AI

Install the library via `pip install "pydantic-ai-slim[mcp]"` and initialize `MCPToolset` with your Vinkius HTTP URL. Pass this toolset directly into your `Agent` constructor using the `toolsets` argument.

The framework raises a validation error immediately rather than letting your agent process corrupt fields. This ensures tools like `get_product` or `search_orders` never introduce silent bugs into your database.

Yes, your agent uses `update_inventory` to adjust stock counts. Because Pydantic AI enforces type safety, it guarantees that inventory updates are only sent as valid, non-negative integers.

Yes, the toolset supports both Streamable HTTP and SSE transports. This allows your agent to fetch catalog details using `search_products` over stable, long-lived connections.

Your product details, customer profiles, and coupon codes are processed in memory within secure, ephemeral Vinkius sandboxes using our secure MCP Server. This architecture ensures no transactional data is cached or exposed to external networks, maintaining strict compliance with e-commerce security standards.

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