How do I get my Loyverse API token?

Log in to your Loyverse Back Office. Navigate to the Integrations section, specifically 'Access Tokens'. Here, you can generate a new personal access token specifically for this AI integration.

Can I query daily sales reports?

Yes, you can use the `l_list_receipts` tool to retrieve sales data and individual receipts over any date range, and the AI agent can aggregate these into daily sales reports for you.

Does the API support checking inventory?

Absolutely. You can use the `l_list_items` tool to dynamically track item catalog details and stock presence across your system.

Can I see all my registered customers?

Yes. The `l_list_customers` tool lets the agent fetch your entire customer database, including their names, registration dates, and generated identifiers.

Loyverse MCP Server for Pydantic AI 4 tools — connect in under 2 minutes

Name: Loyverse
Availability: InStock
Author: Vinkius

ai.pydantic.dev/mcp

Built by Vinkius GDPR 4 Tools SDK

Pydantic AI brings type-safe agent development to Python with first-class MCP support. Connect Loyverse through the Vinkius and every tool is automatically validated against Pydantic schemas — catch errors at build time, not in production.

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 pydantic_ai import Agent
from pydantic_ai.mcp import MCPServerHTTP

async def main():
    # Your Vinkius token — get it at cloud.vinkius.com
    server = MCPServerHTTP(url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp")

    agent = Agent(
        model="openai:gpt-4o",
        mcp_servers=[server],
        system_prompt=(
            "You are an assistant with access to Loyverse "
            "(4 tools)."
        ),
    )

    result = await agent.run(
        "What tools are available in Loyverse?"
    )
    print(result.data)

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 Loyverse MCP Server

The Loyverse MCP Server allows you to seamlessly integrate your point-of-sale system with any AI agent. Manage your inventory, track sales data, and create customer profiles programmatically through natural language.

Pydantic AI validates every Loyverse tool response against typed schemas, catching data inconsistencies at build time. Connect 4 tools through the 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.

What you can do

Track Sales — Retrieve aggregated sales metrics, receipts, and performance data dynamically
Inventory Management — Check stock levels and list items across multiple locations
Customer Data — Search and list your registered customers in the system
Locations — Retrieve store location details and coordinate operations across branches

The Loyverse MCP Server exposes 4 tools through the Vinkius. Connect it to Pydantic AI 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 Loyverse to Pydantic AI via MCP

Follow these steps to integrate the Loyverse MCP Server with Pydantic AI.

Install Pydantic AI

Run pip install pydantic-ai

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 4 tools from Loyverse with type-safe schemas

Why Use Pydantic AI with the Loyverse MCP Server

Pydantic AI provides unique advantages when paired with Loyverse through the Model Context Protocol.

Full type safety: every MCP tool response is validated against Pydantic models, catching data inconsistencies before they reach your application

Model-agnostic architecture — switch between OpenAI, Anthropic, or Gemini without changing your Loyverse integration code

Structured output guarantee: Pydantic AI ensures tool results conform to defined schemas, eliminating runtime type errors

Dependency injection system cleanly separates your Loyverse connection logic from agent behavior for testable, maintainable code

Loyverse + Pydantic AI Use Cases

Practical scenarios where Pydantic AI combined with the Loyverse MCP Server delivers measurable value.

Type-safe data pipelines: query Loyverse with guaranteed response schemas, feeding validated data into downstream processing

API orchestration: chain multiple Loyverse tool calls with Pydantic validation at each step to ensure data integrity end-to-end

Production monitoring: build validated alert agents that query Loyverse and output structured, schema-compliant notifications

Testing and QA: use Pydantic AI's dependency injection to mock Loyverse responses and write comprehensive agent tests

Loyverse MCP Tools for Pydantic AI (4)

These 4 tools become available when you connect Loyverse to Pydantic AI via MCP:

l_list_customers

List your registered store customers from Loyverse POS

l_list_items

List inventory items in your Loyverse account with optional pagination parameters

l_list_locations

List all store locations in your Loyverse account

l_list_receipts

Can filter by creation date min and max parameters. List generated receipts from your Loyverse POS system. Can be filtered by date range and pagination limit

Example Prompts for Loyverse in Pydantic AI

Ready-to-use prompts you can give your Pydantic AI agent to start working with Loyverse immediately.

"Fetch the total sales numbers for all locations yesterday."

"Check the current inventory level for the item 'Honduras Dark Roast Coffee' at the Main Street location."

"Create a new customer profile for John Doe with the email john@example.com."

Troubleshooting Loyverse MCP Server with Pydantic AI

Common issues when connecting Loyverse to Pydantic AI through the Vinkius, and how to resolve them.

MCPServerHTTP not found

Update: pip install --upgrade pydantic-ai

Loyverse + Pydantic AI FAQ

Common questions about integrating Loyverse MCP Server with Pydantic AI.

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 Loyverse MCP integration works identically with OpenAI, Anthropic, Google, or any supported provider.