How to integrate Eventbrite MCP with Mastra AI

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Introduction

This guide walks you through connecting Eventbrite to Mastra 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 Mastra 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

TL;DR

Here's what you'll learn:
  • Set up your environment so Mastra, OpenAI, and Composio work together
  • Create a Tool Router session in Composio that exposes Eventbrite tools
  • Connect Mastra's MCP client to the Composio generated MCP URL
  • Fetch Eventbrite tool definitions and attach them as a toolset
  • Build a Mastra agent that can reason, call tools, and return structured results
  • Run an interactive CLI where you can chat with your Eventbrite agent

What is Mastra AI?

Mastra AI is a TypeScript framework for building AI agents with tool support. It provides a clean API for creating agents that can use external services through MCP.

Key features include:

  • MCP Client: Built-in support for Model Context Protocol servers
  • Toolsets: Organize tools into logical groups
  • Step Callbacks: Monitor and debug agent execution
  • OpenAI Integration: Works with OpenAI models via @ai-sdk/openai

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:

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

Step-by-step Guide

Prerequisites

Before starting, make sure you have:
  • Node.js 18 or higher
  • A Composio account with an active API key
  • An OpenAI API key
  • Basic familiarity with TypeScript

Getting API Keys for OpenAI and Composio

OpenAI API Key
  • Go to the OpenAI dashboard and create an API key.
  • You need credits or a connected billing setup to use the models.
  • Store the key somewhere safe.
Composio API Key
  • Log in to the Composio dashboard.
  • Go to Settings and copy your API key.
  • This key lets your Mastra agent talk to Composio and reach Eventbrite through MCP.

Install dependencies

bash
npm install @composio/core @mastra/core @mastra/mcp @ai-sdk/openai dotenv

Install the required packages.

What's happening:

  • @composio/core is the Composio SDK for creating MCP sessions
  • @mastra/core provides the Agent class
  • @mastra/mcp is Mastra's MCP client
  • @ai-sdk/openai is the model wrapper for OpenAI
  • dotenv loads environment variables from .env

Set up environment variables

bash
COMPOSIO_API_KEY=your_composio_api_key_here
COMPOSIO_USER_ID=your_user_id_here
OPENAI_API_KEY=your_openai_api_key_here

Create a .env file in your project root.

What's happening:

  • COMPOSIO_API_KEY authenticates your requests to Composio
  • COMPOSIO_USER_ID tells Composio which user this session belongs to
  • OPENAI_API_KEY lets the Mastra agent call OpenAI models

Import libraries and validate environment

typescript
import "dotenv/config";
import { openai } from "@ai-sdk/openai";
import { Agent } from "@mastra/core/agent";
import { MCPClient } from "@mastra/mcp";
import { Composio } from "@composio/core";
import * as readline from "readline";

import type { AiMessageType } from "@mastra/core/agent";

const openaiAPIKey = process.env.OPENAI_API_KEY;
const composioAPIKey = process.env.COMPOSIO_API_KEY;
const composioUserID = process.env.COMPOSIO_USER_ID;

if (!openaiAPIKey) throw new Error("OPENAI_API_KEY is not set");
if (!composioAPIKey) throw new Error("COMPOSIO_API_KEY is not set");
if (!composioUserID) throw new Error("COMPOSIO_USER_ID is not set");

const composio = new Composio({
  apiKey: composioAPIKey as string,
});
What's happening:
  • dotenv/config auto loads your .env so process.env.* is available
  • openai gives you a Mastra compatible model wrapper
  • Agent is the Mastra agent that will call tools and produce answers
  • MCPClient connects Mastra to your Composio MCP server
  • Composio is used to create a Tool Router session

Create a Tool Router session for Eventbrite

typescript
async function main() {
  const session = await composio.create(
    composioUserID as string,
    {
      toolkits: ["eventbrite"],
    },
  );

  const composioMCPUrl = session.mcp.url;
  console.log("Eventbrite MCP URL:", composioMCPUrl);
What's happening:
  • create spins up a short-lived MCP HTTP endpoint for this user
  • The toolkits array contains "eventbrite" for Eventbrite access
  • session.mcp.url is the MCP URL that Mastra's MCPClient will connect to

Configure Mastra MCP client and fetch tools

typescript
const mcpClient = new MCPClient({
    id: composioUserID as string,
    servers: {
      nasdaq: {
        url: new URL(composioMCPUrl),
        requestInit: {
          headers: session.mcp.headers,
        },
      },
    },
    timeout: 30_000,
  });

console.log("Fetching MCP tools from Composio...");
const composioTools = await mcpClient.getTools();
console.log("Number of tools:", Object.keys(composioTools).length);
What's happening:
  • MCPClient takes an id for this client and a list of MCP servers
  • The headers property includes the x-api-key for authentication
  • getTools fetches the tool definitions exposed by the Eventbrite toolkit

Create the Mastra agent

typescript
const agent = new Agent({
    name: "eventbrite-mastra-agent",
    instructions: "You are an AI agent with Eventbrite tools via Composio.",
    model: "openai/gpt-5",
  });
What's happening:
  • Agent is the core Mastra agent
  • name is just an identifier for logging and debugging
  • instructions guide the agent to use tools instead of only answering in natural language
  • model uses openai("gpt-5") to configure the underlying LLM

Set up interactive chat interface

typescript
let messages: AiMessageType[] = [];

console.log("Chat started! Type 'exit' or 'quit' to end.\n");

const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout,
  prompt: "> ",
});

rl.prompt();

rl.on("line", async (userInput: string) => {
  const trimmedInput = userInput.trim();

  if (["exit", "quit", "bye"].includes(trimmedInput.toLowerCase())) {
    console.log("\nGoodbye!");
    rl.close();
    process.exit(0);
  }

  if (!trimmedInput) {
    rl.prompt();
    return;
  }

  messages.push({
    id: crypto.randomUUID(),
    role: "user",
    content: trimmedInput,
  });

  console.log("\nAgent is thinking...\n");

  try {
    const response = await agent.generate(messages, {
      toolsets: {
        eventbrite: composioTools,
      },
      maxSteps: 8,
    });

    const { text } = response;

    if (text && text.trim().length > 0) {
      console.log(`Agent: ${text}\n`);
        messages.push({
          id: crypto.randomUUID(),
          role: "assistant",
          content: text,
        });
      }
    } catch (error) {
      console.error("\nError:", error);
    }

    rl.prompt();
  });

  rl.on("close", async () => {
    console.log("\nSession ended.");
    await mcpClient.disconnect();
    process.exit(0);
  });
}

main().catch((err) => {
  console.error("Fatal error:", err);
  process.exit(1);
});
What's happening:
  • messages keeps the full conversation history in Mastra's expected format
  • agent.generate runs the agent with conversation history and Eventbrite toolsets
  • maxSteps limits how many tool calls the agent can take in a single run
  • onStepFinish is a hook that prints intermediate steps for debugging

Complete Code

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

typescript
import "dotenv/config";
import { openai } from "@ai-sdk/openai";
import { Agent } from "@mastra/core/agent";
import { MCPClient } from "@mastra/mcp";
import { Composio } from "@composio/core";
import * as readline from "readline";

import type { AiMessageType } from "@mastra/core/agent";

const openaiAPIKey = process.env.OPENAI_API_KEY;
const composioAPIKey = process.env.COMPOSIO_API_KEY;
const composioUserID = process.env.COMPOSIO_USER_ID;

if (!openaiAPIKey) throw new Error("OPENAI_API_KEY is not set");
if (!composioAPIKey) throw new Error("COMPOSIO_API_KEY is not set");
if (!composioUserID) throw new Error("COMPOSIO_USER_ID is not set");

const composio = new Composio({ apiKey: composioAPIKey as string });

async function main() {
  const session = await composio.create(composioUserID as string, {
    toolkits: ["eventbrite"],
  });

  const composioMCPUrl = session.mcp.url;

  const mcpClient = new MCPClient({
    id: composioUserID as string,
    servers: {
      eventbrite: {
        url: new URL(composioMCPUrl),
        requestInit: {
          headers: session.mcp.headers,
        },
      },
    },
    timeout: 30_000,
  });

  const composioTools = await mcpClient.getTools();

  const agent = new Agent({
    name: "eventbrite-mastra-agent",
    instructions: "You are an AI agent with Eventbrite tools via Composio.",
    model: "openai/gpt-5",
  });

  let messages: AiMessageType[] = [];

  const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    prompt: "> ",
  });

  rl.prompt();

  rl.on("line", async (input: string) => {
    const trimmed = input.trim();
    if (["exit", "quit"].includes(trimmed.toLowerCase())) {
      rl.close();
      return;
    }

    messages.push({ id: crypto.randomUUID(), role: "user", content: trimmed });

    const { text } = await agent.generate(messages, {
      toolsets: { eventbrite: composioTools },
      maxSteps: 8,
    });

    if (text) {
      console.log(`Agent: ${text}\n`);
      messages.push({ id: crypto.randomUUID(), role: "assistant", content: text });
    }

    rl.prompt();
  });

  rl.on("close", async () => {
    await mcpClient.disconnect();
    process.exit(0);
  });
}

main();

Conclusion

You've built a Mastra AI agent that can interact with Eventbrite through Composio's Tool Router. You can extend this further by:
  • Adding other toolkits like Gmail, Slack, or GitHub
  • Building a web-based chat interface around this agent
  • Using multiple MCP endpoints to enable cross-app workflows

How to build Eventbrite MCP Agent with another framework

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OpenAI Agents SDK

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Claude Agent SDK

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Use Eventbrite MCP with Claude Code

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Use Eventbrite MCP with Claude Cowork

Codex logo

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Use Eventbrite MCP with Codex

OpenClaw logo

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Use Eventbrite MCP with OpenClaw

Hermes logo

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Use Eventbrite MCP with Hermes

CLI logo

CLI

Use Eventbrite MCP with CLI

Google ADK logo

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Use Eventbrite MCP with Google ADK

LangChain logo

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Vercel AI SDK logo

Vercel AI SDK

Use Eventbrite MCP with Vercel AI SDK

LlamaIndex logo

LlamaIndex

Use Eventbrite MCP with LlamaIndex

CrewAI logo

CrewAI

Use Eventbrite MCP with CrewAI

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 Mastra AI?

Yes, you can. Mastra 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.

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