Eventbrite with Pydantic AI

How to integrate Eventbrite MCP with Pydantic AI

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Introduction Also integrate Eventbrite with TL;DR What is Pydantic AI What is the Eventbrite MCP server Supported Tools & Triggers Creating MCP Server - Stand-alone vs Composio SDK Step-by-step Guide Complete Code Conclusion How to build Eventbrite MCP Agent with another framework Explore Other Toolkits FAQ

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Introduction

This guide walks you through connecting Eventbrite to Pydantic AI using the Composio tool router. By the end, you'll have a working Eventbrite agent that can list all available eventbrite event categories, show event formats for online conferences, find subcategories under the 'music' category through natural language commands.

This guide will help you understand how to give your Pydantic AI agent real control over a Eventbrite account through Composio's Eventbrite MCP server.

Before we dive in, let's take a quick look at the key ideas and tools involved.

Also integrate Eventbrite with

OpenAI Agents SDK Claude Agent SDK Claude Code Claude Cowork Codex OpenClaw Hermes CLI Google ADK LangChain Vercel AI SDK Mastra AI LlamaIndex CrewAI

TL;DR

Here's what you'll learn:

How to set up your Composio API key and User ID
How to create a Composio Tool Router session for Eventbrite
How to attach an MCP Server to a Pydantic AI agent
How to stream responses and maintain chat history
How to build a simple REPL-style chat interface to test your Eventbrite workflows

What is Pydantic AI?

Pydantic AI is a Python framework for building AI agents with strong typing and validation. It leverages Pydantic's data validation capabilities to create robust, type-safe AI applications.

Key features include:

Type Safety: Built on Pydantic for automatic data validation
MCP Support: Native support for Model Context Protocol servers
Streaming: Built-in support for streaming responses
Async First: Designed for async/await patterns

What is the Eventbrite MCP server, and what's possible with it?

The Eventbrite MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Eventbrite account. It provides structured and secure access to your event management tools, so your agent can retrieve event categories, formats, and subcategories—making it simple to plan, organize, and customize events programmatically.

Discover event categories: Instantly access and list all available Eventbrite categories, helping you select the most relevant topics for your events.
Explore event formats: Let your agent fetch the variety of formats supported by Eventbrite, such as in-person, virtual, or hybrid, to tailor event structure on the fly.
Retrieve event subcategories: Quickly pull detailed subcategory options based on your selected category, ensuring precise event classification and audience targeting.
Localized event metadata retrieval: Enable your agent to localize categories, formats, and subcategories based on specific regions or languages, making global event planning seamless.

Supported Tools & Triggers

Tools

Add Ticket Class to GroupsTool to add a ticket class to one or more explicitly specified ticket groups for an Eventbrite event.

Add Ticket to Group by OrganizationTool to add a ticket class to ticket groups using organization and event IDs.

Calculate Price For ItemTool to calculate Eventbrite fees for a given ticket price.

Cancel EventTool to cancel an Eventbrite event.

Copy EventTool to copy an Eventbrite event and create a duplicate with a new Event ID.

Create Access CodeTool to create a new access code for an Eventbrite event.

Create Checkout SettingsTool to create checkout settings for an Eventbrite organization.

Create Custom QuestionTool to create a custom question for an Eventbrite event.

Create DiscountTool to create a new discount for an Eventbrite organization.

Create EventTool to create a new Eventbrite event.

Create Event ScheduleTool to create an event schedule for a series parent event.

Create Inventory TierTool to create a new inventory tier for an Eventbrite event.

Create OrganizerTool to create a new organizer for an Eventbrite organization.

Create Ticket ClassTool to create a new ticket class for an Eventbrite event.

Create Ticket GroupTool to create a new ticket group for an Eventbrite organization.

Create Tracking BeaconTool to create a tracking beacon for an Eventbrite event or user.

Create VenueTool to create a new venue under an organization in Eventbrite.

Create WebhookTool to create a new webhook for an Eventbrite organization.

Delete Default QuestionTool to deactivate a canned question for an event.

Delete DiscountTool to delete a discount from Eventbrite.

Delete EventTool to delete an Eventbrite event.

Delete Inventory TierTool to mark an existing inventory tier as deleted for an Eventbrite event.

Delete Ticket ClassTool to delete a ticket class from an Eventbrite event by its ID.

Delete Ticket GroupTool to delete a ticket group by changing its status to deleted.

Get Access CodeTool to retrieve a specific access code by ID for an Eventbrite event.

Get Organization AssortmentTool to retrieve assortment information for a specific organization.

Get Attendee ReportTool to retrieve an attendee report for events in an Eventbrite organization.

Get Capacity TierTool to retrieve the capacity tier for an Eventbrite event.

Get Category by IDTool to retrieve a specific category by ID.

Get Checkout SettingsTool to retrieve checkout settings for a specific Eventbrite organization.

Get Default QuestionTool to retrieve a specific default (canned) question for an Eventbrite event by Event ID and Question ID.

Get DiscountTool to retrieve a discount by its ID from Eventbrite.

Get Display SettingsTool to retrieve display settings for a specific Eventbrite event.

Get EventTool to retrieve detailed information for a specific Eventbrite event by ID.

Get Event CategoriesTool to retrieve event categories.

Get Event DescriptionTool to retrieve the full HTML description for an Eventbrite event.

Get Event FormatsTool to list event formats.

Get Event SubcategoriesTool to list all event subcategories.

Get FormatTool to retrieve a format by format ID.

Get Inventory TierTool to retrieve an Inventory Tier by ID for an Event.

Get Current UserTool to retrieve the authenticated user's account information.

Get Media UploadTool to retrieve information on a Media image upload.

Get Organizer by IDTool to retrieve an organizer by organizer ID from Eventbrite.

Get Sales ReportTool to retrieve a sales report by Event ID or Event status for an organization.

Get Event SeriesTool to retrieve a parent Event Series by Event Series ID.

Get Structured ContentTool to retrieve structured content for an Eventbrite event.

Get Structured Content Edit VersionTool to retrieve the latest working version of structured content for an event.

Get Subcategory by IDTool to retrieve a specific subcategory by ID.

Get Ticket ClassTool to retrieve a specific ticket class by ID for an Eventbrite event.

Get Ticket GroupTool to retrieve a ticket group by its ID from Eventbrite.

Get Tracking BeaconTool to retrieve a tracking beacon by ID from Eventbrite.

Get User by IDTool to retrieve information about a user by user ID.

Get Venue by IDTool to retrieve detailed information for a specific venue by venue ID.

List Access CodesTool to retrieve all access codes for an Eventbrite event.

List Custom QuestionsTool to retrieve custom questions configured for an Eventbrite event.

List Default QuestionsTool to retrieve default (canned) questions for an Eventbrite event by Event ID.

List Event AttendeesTool to retrieve the list of attendees for an Eventbrite event.

List Event OrdersTool to list orders for a specific Eventbrite event.

List Inventory TiersTool to retrieve inventory tiers for an Eventbrite event.

List Organization EventsTool to list events owned by a specific Eventbrite organization.

List Organization MembersTool to list members of an Eventbrite organization by organization ID.

List Organization OrdersTool to list orders placed for events owned by a specific Eventbrite organization.

List Organization RolesTool to list roles within a specific Eventbrite organization by organization ID.

List Organization WebhooksTool to list all webhooks configured for a specific Eventbrite organization.

List Organization AttendeesTool to list attendees across all events owned by an Eventbrite organization.

List Organization OrganizersTool to list organizers belonging to a specific Eventbrite organization.

List Organization VenuesTool to list venues owned by a specific Eventbrite organization.

List PricingTool to list available pricing fee rates for a specific currency and country.

List Series EventsTool to list all events in an Eventbrite event series by series ID.

List Ticket ClassesTool to list ticket classes for a specific Eventbrite event by event ID.

List Ticket Classes For SaleTool to list ticket classes available for sale for a specific Eventbrite event.

List Organization Ticket GroupsTool to list ticket groups for a specific Eventbrite organization.

List Tracking BeaconsTool to list tracking beacons for an Eventbrite organization by organization ID.

List User OrdersTool to list orders for a specific Eventbrite user.

List User OrganizationsTool to list organizations the authenticated user belongs to.

List Organizations by User IDTool to list organizations by user ID.

List Venue EventsTool to list all events at a specific Eventbrite venue by venue ID.

Publish EventTool to publish an Eventbrite event.

Retrieve MediaTool to retrieve media information by ID.

Search Discounts by OrganizationTool to search and list discounts by organization ID.

Set Structured ContentTool to set structured content for an Eventbrite event by version.

Unpublish EventTool to unpublish an Eventbrite event.

Update Access CodeTool to update an existing access code for an Eventbrite event.

Update Organization AssortmentTool to update the assortment plan for a specific organization.

Update Capacity TierTool to update the capacity tier for an Eventbrite event.

Update Default QuestionTool to update a default (canned) question for an Eventbrite event.

Update DiscountTool to update a discount by its ID in Eventbrite.

Update Display SettingsTool to update display settings for a specific Eventbrite event.

Update EventTool to update an Eventbrite event by ID.

Update Inventory TierTool to update an existing Inventory Tier by ID for an Event.

Update OrganizerTool to update an Eventbrite organizer by ID.

Update Ticket Buyer SettingsTool to update ticket buyer settings for an Eventbrite event.

Update Ticket ClassTool to update a ticket class for an Eventbrite event.

Update Ticket GroupTool to update a ticket group by its ID in Eventbrite.

Update VenueTool to update a venue's details by venue ID.

What is the Composio tool router, and how does it fit here?

What is Composio SDK?

Composio's Composio SDK helps agents find the right tools for a task at runtime. You can plug in multiple toolkits (like Gmail, HubSpot, and GitHub), and the agent will identify the relevant app and action to complete multi-step workflows. This can reduce token usage and improve the reliability of tool calls. Read more here: Getting started with Composio SDK

The tool router generates a secure MCP URL that your agents can access to perform actions.

How the Composio SDK works

The Composio SDK follows a three-phase workflow:

Discovery: Searches for tools matching your task and returns relevant toolkits with their details.
Authentication: Checks for active connections. If missing, creates an auth config and returns a connection URL via Auth Link.
Execution: Executes the action using the authenticated connection.

Step-by-step Guide

Prerequisites

Before starting, make sure you have:

Python 3.9 or higher
A Composio account with an active API key
Basic familiarity with Python and async programming

Getting API Keys for OpenAI and Composio

OpenAI API Key

Go to the OpenAI dashboard and create an API key. You'll need credits to use the models, or you can connect to another model provider.
Keep the API key safe.

Composio API Key

Log in to the Composio dashboard.
Navigate to your API settings and generate a new API key.
Store this key securely as you'll need it for authentication.

Install dependencies

bash

pip install composio pydantic-ai python-dotenv

Install the required libraries.

What's happening:

composio connects your agent to external SaaS tools like Eventbrite
pydantic-ai lets you create structured AI agents with tool support
python-dotenv loads your environment variables securely from a .env file

Set up environment variables

bash

COMPOSIO_API_KEY=your_composio_api_key_here
USER_ID=your_user_id_here
OPENAI_API_KEY=your_openai_api_key

Create a .env file in your project root.

What's happening:

COMPOSIO_API_KEY authenticates your agent to Composio's API
USER_ID associates your session with your account for secure tool access
OPENAI_API_KEY to access OpenAI LLMs

Import dependencies

python

import asyncio
import os
from dotenv import load_dotenv
from composio import Composio
from pydantic_ai import Agent
from pydantic_ai.mcp import MCPServerStreamableHTTP

load_dotenv()

What's happening:

We load environment variables and import required modules
Composio manages connections to Eventbrite
MCPServerStreamableHTTP connects to the Eventbrite MCP server endpoint
Agent from Pydantic AI lets you define and run the AI assistant

Create a Tool Router Session

python

async def main():
    api_key = os.getenv("COMPOSIO_API_KEY")
    user_id = os.getenv("USER_ID")
    if not api_key or not user_id:
        raise RuntimeError("Set COMPOSIO_API_KEY and USER_ID in your environment")

    # Create a Composio Tool Router session for Eventbrite
    composio = Composio(api_key=api_key)
    session = composio.create(
        user_id=user_id,
        toolkits=["eventbrite"],
    )
    url = session.mcp.url
    if not url:
        raise ValueError("Composio session did not return an MCP URL")

What's happening:

We're creating a Tool Router session that gives your agent access to Eventbrite tools
The create method takes the user ID and specifies which toolkits should be available
The returned session.mcp.url is the MCP server URL that your agent will use

Initialize the Pydantic AI Agent

python

# Attach the MCP server to a Pydantic AI Agent
eventbrite_mcp = MCPServerStreamableHTTP(url, headers={"x-api-key": COMPOSIO_API_KEY})
agent = Agent(
    "openai:gpt-5",
    toolsets=[eventbrite_mcp],
    instructions=(
        "You are a Eventbrite assistant. Use Eventbrite tools to help users "
        "with their requests. Ask clarifying questions when needed."
    ),
)

What's happening:

The MCP client connects to the Eventbrite endpoint
The agent uses GPT-5 to interpret user commands and perform Eventbrite operations
The instructions field defines the agent's role and behavior

Build the chat interface

python

# Simple REPL with message history
history = []
print("Chat started! Type 'exit' or 'quit' to end.\n")
print("Try asking the agent to help you with Eventbrite.\n")

while True:
    user_input = input("You: ").strip()
    if user_input.lower() in {"exit", "quit", "bye"}:
        print("\nGoodbye!")
        break
    if not user_input:
        continue

    print("\nAgent is thinking...\n", flush=True)

    async with agent.run_stream(user_input, message_history=history) as stream_result:
        collected_text = ""
        async for chunk in stream_result.stream_output():
            text_piece = None
            if isinstance(chunk, str):
                text_piece = chunk
            elif hasattr(chunk, "delta") and isinstance(chunk.delta, str):
                text_piece = chunk.delta
            elif hasattr(chunk, "text"):
                text_piece = chunk.text
            if text_piece:
                collected_text += text_piece
        result = stream_result

    print(f"Agent: {collected_text}\n")
    history = result.all_messages()

What's happening:

The agent reads input from the terminal and streams its response
Eventbrite API calls happen automatically under the hood
The model keeps conversation history to maintain context across turns

Run the application

python

if __name__ == "__main__":
    asyncio.run(main())

What's happening:

The asyncio loop launches the agent and keeps it running until you exit

Complete Code

Here's the complete code to get you started with Eventbrite and Pydantic AI:

python

import asyncio
import os
from dotenv import load_dotenv
from composio import Composio
from pydantic_ai import Agent
from pydantic_ai.mcp import MCPServerStreamableHTTP

load_dotenv()

async def main():
    api_key = os.getenv("COMPOSIO_API_KEY")
    user_id = os.getenv("USER_ID")
    if not api_key or not user_id:
        raise RuntimeError("Set COMPOSIO_API_KEY and USER_ID in your environment")

    # Create a Composio Tool Router session for Eventbrite
    composio = Composio(api_key=api_key)
    session = composio.create(
        user_id=user_id,
        toolkits=["eventbrite"],
    )
    url = session.mcp.url
    if not url:
        raise ValueError("Composio session did not return an MCP URL")

    # Attach the MCP server to a Pydantic AI Agent
    eventbrite_mcp = MCPServerStreamableHTTP(url, headers={"x-api-key": COMPOSIO_API_KEY})
    agent = Agent(
        "openai:gpt-5",
        toolsets=[eventbrite_mcp],
        instructions=(
            "You are a Eventbrite assistant. Use Eventbrite tools to help users "
            "with their requests. Ask clarifying questions when needed."
        ),
    )

    # Simple REPL with message history
    history = []
    print("Chat started! Type 'exit' or 'quit' to end.\n")
    print("Try asking the agent to help you with Eventbrite.\n")

    while True:
        user_input = input("You: ").strip()
        if user_input.lower() in {"exit", "quit", "bye"}:
            print("\nGoodbye!")
            break
        if not user_input:
            continue

        print("\nAgent is thinking...\n", flush=True)

        async with agent.run_stream(user_input, message_history=history) as stream_result:
            collected_text = ""
            async for chunk in stream_result.stream_output():
                text_piece = None
                if isinstance(chunk, str):
                    text_piece = chunk
                elif hasattr(chunk, "delta") and isinstance(chunk.delta, str):
                    text_piece = chunk.delta
                elif hasattr(chunk, "text"):
                    text_piece = chunk.text
                if text_piece:
                    collected_text += text_piece
            result = stream_result

        print(f"Agent: {collected_text}\n")
        history = result.all_messages()

if __name__ == "__main__":
    asyncio.run(main())

Conclusion

You've built a Pydantic AI agent that can interact with Eventbrite through Composio's Tool Router. With this setup, your agent can perform real Eventbrite actions through natural language. You can extend this further by:

Adding other toolkits like Gmail, HubSpot, or Salesforce
Building a web-based chat interface around this agent
Using multiple MCP endpoints to enable cross-app workflows (for example, Gmail + Eventbrite for workflow automation)

This architecture makes your AI agent "agent-native", able to securely use APIs in a unified, composable way without custom integrations.

How to build Eventbrite MCP Agent with another framework

OpenAI Agents SDK

Use Eventbrite MCP with OpenAI Agents SDK

Claude Agent SDK

Use Eventbrite MCP with Claude Agent SDK

Claude Code

Use Eventbrite MCP with Claude Code

Claude Cowork

Use Eventbrite MCP with Claude Cowork

Codex

Use Eventbrite MCP with Codex

OpenClaw

Use Eventbrite MCP with OpenClaw

Hermes

Use Eventbrite MCP with Hermes

CLI

Use Eventbrite MCP with CLI

Google ADK

Use Eventbrite MCP with Google ADK

LangChain

Use Eventbrite MCP with LangChain

Vercel AI SDK

Use Eventbrite MCP with Vercel AI SDK

Mastra AI

Use Eventbrite MCP with Mastra AI

LlamaIndex

Use Eventbrite MCP with LlamaIndex

CrewAI

Use Eventbrite MCP with CrewAI

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TOOLKIT MARKETPLACE

FAQ

What are the differences in Tool Router MCP and Eventbrite MCP?

With a standalone Eventbrite MCP server, the agents and LLMs can only access a fixed set of Eventbrite tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Eventbrite and many other apps based on the task at hand, all through a single MCP endpoint.

Can I use Tool Router MCP with Pydantic AI?

Yes, you can. Pydantic AI fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Eventbrite tools.

Can I manage the permissions and scopes for Eventbrite while using Tool Router?

Yes, absolutely. You can configure which Eventbrite scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

How safe is my data with Composio Tool Router?

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Eventbrite data and credentials are handled as safely as possible.

Used by agents from

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We handle tool reliability, observability, and security so you never have to second-guess an agent action.

Get started for free Get a demo↗

Harsha GaddipatiCo-founder, Slashy

Karan skipped his own birthday party to fix our critical issue. It was 10 pm and he diverted his Waymo to help us instead. This really sets the bar, shows you the commitment you need to have when users rely on your software.

Abhi AryaCo-founder, Opennote

A lot of students tell us that the moment their connected tools start talking to each other inside Opennote feels almost magical. The agent just knows them, and it has immensely helped in keeping new users on the platform.

Nirman DaveCEO, Zams

We chose Composio over Pipedream because it delivered depth where it mattered. It supported niche tools and tricky edge cases that other platforms simply ignored. Giving us confidence to scale without compromising.

Ryan YuFounder, Extra Thursday

As a solo builder, shipping fast is life or death. The only way I can outcompete incumbents is by outmanoeuvring them. Getting bogged down in the complexities of managing agent auth would have been a death sentence for Extra Thursday.

Tomisin JenrolaFounder & CEO, SwarmZero

Before partnering with Composio, adding tool integrations was a slow, resource-intensive process. Each integration could take weeks or months of engineering time, and maintaining them meant constantly keeping up with API changes.

Jerome LeclancheCo-Founder, Ingram Technologies

With hands-on help from their founder, we integrated Gmail and Google Drive in just 30 minutes. This level of personal support and commitment is exactly what startups should strive for.

Harsha GaddipatiCo-founder, Slashy

Abhi AryaCo-founder, Opennote

Nirman DaveCEO, Zams

Ryan YuFounder, Extra Thursday

Tomisin JenrolaFounder & CEO, SwarmZero

Jerome LeclancheCo-Founder, Ingram Technologies

With hands-on help from their founder, we integrated Gmail and Google Drive in just 30 minutes. This level of personal support and commitment is exactly what startups should strive for.

Harsha GaddipatiCo-founder, Slashy

Abhi AryaCo-founder, Opennote

Nirman DaveCEO, Zams

Ryan YuFounder, Extra Thursday

Tomisin JenrolaFounder & CEO, SwarmZero

Jerome LeclancheCo-Founder, Ingram Technologies

With hands-on help from their founder, we integrated Gmail and Google Drive in just 30 minutes. This level of personal support and commitment is exactly what startups should strive for.

How to integrate Eventbrite MCP with Pydantic AI

Table of Contents

Connect Eventbrite without Auth hassles

Introduction

Also integrate Eventbrite with

TL;DR

What is Pydantic AI?

What is the Eventbrite MCP server, and what's possible with it?

Supported Tools & Triggers

What is the Composio tool router, and how does it fit here?

What is Composio SDK?

How the Composio SDK works

Step-by-step Guide

Prerequisites

Getting API Keys for OpenAI and Composio

Install dependencies

Set up environment variables

Import dependencies

Create a Tool Router Session

Initialize the Pydantic AI Agent

Build the chat interface

Run the application

Complete Code

Conclusion

How to build Eventbrite MCP Agent with another framework

OpenAI Agents SDK

Claude Agent SDK

Claude Code

Claude Cowork

Codex

OpenClaw

Hermes

CLI

Google ADK

LangChain

Vercel AI SDK

Mastra AI

LlamaIndex

CrewAI

Explore Other Toolkits

Reddit

Facebook

Linkedin

FAQ

What are the differences in Tool Router MCP and Eventbrite MCP?

Can I use Tool Router MCP with Pydantic AI?

Can I manage the permissions and scopes for Eventbrite while using Tool Router?

How safe is my data with Composio Tool Router?

Used by agents from

Never worry about agent reliability