Can I check which subscription plan a customer is currently on?

Yes! Use the `get_customer_subscriptions` tool with the Customer Unique ID. It will fetch all active and inactive plans for that user.

Does the integration allow me to cancel a subscription?

Currently, the toolset focuses on querying and management functions (listing customers, checking invoices). Canceling or modifying subscription billing dates must be done on the Billsby platform.

Can I list all available subscription plans?

Yes. Use the `list_plans` tool to retrieve all subscription plans configured in your Billsby account, including their pricing and cycles.

Billsby MCP Server for Pydantic AI 10 tools — connect in under 2 minutes

Name: Billsby
Availability: InStock
Author: Vinkius

ai.pydantic.dev/mcp

Built by Vinkius GDPR 10 Tools SDK

Pydantic AI brings type-safe agent development to Python with first-class MCP support. Connect Billsby through 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 Billsby "
            "(10 tools)."
        ),
    )

    result = await agent.run(
        "What tools are available in Billsby?"
    )
    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 Billsby MCP Server

Connect your Billsby account to any AI agent and orchestrate your subscription billing workflows through natural conversation.

Pydantic AI validates every Billsby tool response against typed schemas, catching data inconsistencies at build time. Connect 10 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.

What you can do

Customer Management — List, retrieve, and create customer profiles within your billing system.
Subscription Oversight — Query and manage subscriptions, plans, and add-ons linked to your customers.
Invoicing Audits — Access recent invoices and their payment statuses to ensure steady cash flow.
Product Catalog — Retrieve available products and their pricing structures from Billsby.

The Billsby MCP Server exposes 10 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 Billsby to Pydantic AI via MCP

Follow these steps to integrate the Billsby 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 10 tools from Billsby with type-safe schemas

Why Use Pydantic AI with the Billsby MCP Server

Pydantic AI provides unique advantages when paired with Billsby 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 Billsby integration code

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

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

Billsby + Pydantic AI Use Cases

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

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

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

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

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

Billsby MCP Tools for Pydantic AI (10)

These 10 tools become available when you connect Billsby to Pydantic AI via MCP:

create_customer

Create a new customer

get_customer

Get specific customer details

get_customer_subscriptions

List subscriptions for a specific customer

get_subscription

Get specific subscription details

list_addons

List available add-ons

list_customers

List all customers

list_invoices

List recent invoices

list_plans

List all subscription plans

list_products

List all products

list_subscriptions

List all subscriptions

Example Prompts for Billsby in Pydantic AI

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

"List all our active customers."

"Show subscriptions for customer c_1."

"List all available subscription plans."

Troubleshooting Billsby MCP Server with Pydantic AI

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

MCPServerHTTP not found

Update: pip install --upgrade pydantic-ai

Billsby + Pydantic AI FAQ

Common questions about integrating Billsby 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 Billsby MCP integration works identically with OpenAI, Anthropic, Google, or any supported provider.