How to integrate Bugsnag MCP with Pydantic AI

This guide walks you through connecting Bugsnag to Pydantic AI using the Composio tool router. By the end, you'll have a working Bugsnag agent that can bulk update error statuses for project x, invite new collaborator to your organization, create a saved search for critical errors through natural language commands. This guide will help you understand how to give your Pydantic AI agent real control over a Bugsnag account through Composio's Bugsnag MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved.

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Bugsnag

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Bugsnag is an error monitoring and stability management platform for software teams. It helps developers quickly detect, prioritize, and resolve application bugs for a smoother user experience.

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Introduction

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

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

Also integrate Bugsnag 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 Bugsnag
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 Bugsnag 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 Bugsnag MCP server, and what's possible with it?

The Bugsnag MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Bugsnag account. It provides structured and secure access to your error monitoring environment, so your agent can perform actions like managing errors, configuring integrations, inviting collaborators, and customizing project event fields on your behalf.

Bulk error management and updates: Let your agent update or clear multiple errors across your projects to streamline incident response and maintenance.
Integration configuration and cleanup: Have your agent set up new third-party integrations or remove existing ones, ensuring your Bugsnag projects are always connected to the right tools.
User and collaborator management: Easily invite new collaborators to your organization or remove access for old members, keeping your team roster up to date.
Custom event field creation and deletion: Direct your agent to add or remove custom event fields for advanced filtering and analytics within your projects.
Project-level administration and cleanup: Instruct your agent to perform large-scale actions such as deleting all errors or even entire projects, giving you powerful administrative control when needed.

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

Step by step09 STEPS

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 Bugsnag
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 Bugsnag
MCPServerStreamableHTTP connects to the Bugsnag 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 Bugsnag
    composio = Composio(api_key=api_key)
    session = composio.create(
        user_id=user_id,
        toolkits=["bugsnag"],
    )
    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 Bugsnag 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
bugsnag_mcp = MCPServerStreamableHTTP(url, headers={"x-api-key": COMPOSIO_API_KEY})
agent = Agent(
    "openai:gpt-5",
    toolsets=[bugsnag_mcp],
    instructions=(
        "You are a Bugsnag assistant. Use Bugsnag tools to help users "
        "with their requests. Ask clarifying questions when needed."
    ),
)

What's happening:

The MCP client connects to the Bugsnag endpoint
The agent uses GPT-5 to interpret user commands and perform Bugsnag 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 Bugsnag.\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
Bugsnag 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 Bugsnag 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 Bugsnag
    composio = Composio(api_key=api_key)
    session = composio.create(
        user_id=user_id,
        toolkits=["bugsnag"],
    )
    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
    bugsnag_mcp = MCPServerStreamableHTTP(url, headers={"x-api-key": COMPOSIO_API_KEY})
    agent = Agent(
        "openai:gpt-5",
        toolsets=[bugsnag_mcp],
        instructions=(
            "You are a Bugsnag assistant. Use Bugsnag 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 Bugsnag.\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 Bugsnag through Composio's Tool Router. With this setup, your agent can perform real Bugsnag 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 + Bugsnag for workflow automation)

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

TOOLS

Supported Tools

Every Bugsnag action and event your agent gets out of the box.

Add Collaborator to Teams

Tool to add a collaborator to a group of teams in a Bugsnag organization.

Add Collaborators to Team

Tool to add collaborators to a team in a Bugsnag organization.

Bulk Update Errors

Bulk update multiple errors in a Bugsnag project.

Configure Integration

Tool to configure a new integration for a Bugsnag project.

Confirm Project Event Data Deletion

Confirms a project event data deletion request in Bugsnag.

Invite Collaborator

Invites a new collaborator to a Bugsnag organization by email.

Create Custom Event Field

Creates a custom event field for a Bugsnag project, enabling filtering and pivoting on custom metadata.

Create Organization Project

Tool to create a new project in a Bugsnag organization.

Create Organization Team

Tool to create a new team in a Bugsnag organization.

Create Organization Data Deletion Request

Tool to create an event data deletion request for GDPR/CCPA compliance.

Create Organization Data Request

Tool to create an event data request for a Bugsnag organization (GDPR/CCPA compliance).

Create Project Event Data Deletion Request

Tool to create an event data deletion request for a specific project.

Create Project Event Data Request

Tool to create an event data request for a Bugsnag project.

Create Saved Search

Creates a saved search (filterset) for a Bugsnag project that persists filter and sort configurations.

Delete All Errors in a Project

Permanently deletes all errors and event data from a Bugsnag project.

Delete Collaborator

Removes a collaborator from a Bugsnag organization.

Delete a configured integration

Tool to delete a configured integration.

Delete Custom Event Field

Deletes a custom event field from a Bugsnag project.

Delete Organization

Permanently deletes a Bugsnag organization.

Delete Organization Team

Tool to delete a team from a Bugsnag organization.

Delete Project

Permanently deletes a Bugsnag project.

Delete Saved Search

Permanently deletes a saved search (filterset) from a Bugsnag project.

Get Configured Integration

Tool to retrieve details of a specific configured integration by its ID.

Get Organization By ID

Tool to view an organization by its ID.

Get Organization Collaborator Project Access Counts

Tool to view the project count of collaborators in an organization.

Get Organization Collaborator Projects

Tool to view projects a collaborator has access to in an organization.

Get Organization Event Data Request

Tool to check the status of an organization event data request.

Get Organization Team

Tool to show the details of a team in an organization.

Get Organization Data Deletion Status

Tool to check the status of an organization event data deletion request in Bugsnag.

Get Pivot Values on a Project

List pivot values for a project, showing how events are distributed across different values of a field.

Get Project Data Deletion Status

Tool to check the status of a project event data deletion request in Bugsnag.

Get Project Event Data Request

Tool to check the status of a project event data request.

Get Project Network Grouping Ruleset

Tool to retrieve a project's network grouping ruleset.

Get Saved Search

Retrieves the details of a specific saved search by its unique ID.

Get Saved Search Usage Summary

Retrieves usage statistics for a saved search, showing how it is being used across the project.

List Collaborator Access Details for Projects

Tool to list summary details of the projects a collaborator has access to.

List Collaborators

Tool to list collaborators in an organization.

List Collaborators on Project

Tool to list collaborators on a project.

List Configured Integrations for Project

Retrieves all configured integrations for a Bugsnag project.

List Errors on Project

List all errors in a Bugsnag project with optional filtering and sorting.

List Event Fields for Project

Lists all event fields available for filtering and pivoting in a Bugsnag project.

List Events for Error

Lists individual error event occurrences for a specific error group.

List Events on Project

List all error events for a Bugsnag project.

List Organizations

Tool to list organizations for the authenticated user.

List Organization Teams

Tool to list teams in an organization.

List Pivots for Project

Lists all pivot field definitions for a Bugsnag project.

List Project Feature Flags

List feature flags on a Bugsnag project for a specific release stage.

List Project Feature Flag Summaries

List feature flag summaries for a Bugsnag project with optional search filtering.

List Projects

Tool to list projects in an organization.

List Release Groups

Tool to list release groups for a project.

List Releases

List all releases (deployed versions) of a Bugsnag project.

List Saved Searches on Project

Lists all saved searches for a Bugsnag project.

List Supported Integrations

Tool to list all supported integrations.

List Trends for Project Buckets

Retrieves time-segmented event counts (trend buckets) for a Bugsnag project.

Regenerate Project API Key

Regenerates a Bugsnag project's notifier API key.

Show Collaborator Access Details for Project

Tool to show a collaborator's access details for a project.

Show Collaborator on Organization

Tool to show a collaborator in an organization.

Show Collaborator on Project

Tool to show a collaborator in a project.

Test Integration

Tool to test an integration configuration before deploying it.

Update Collaborator Permissions

Tool to update a collaborator's project access permissions.

FRAMEWORKS

How to build Bugsnag MCP Agent with another framework

OpenAI Agents SDK

Use Bugsnag MCP with OpenAI Agents SDK

Claude Agent SDK

Use Bugsnag MCP with Claude Agent SDK

Claude Code

Use Bugsnag MCP with Claude Code

Claude Cowork

Use Bugsnag MCP with Claude Cowork

Codex

Use Bugsnag MCP with Codex

OpenClaw

Use Bugsnag MCP with OpenClaw

Hermes

Use Bugsnag MCP with Hermes

CLI

Use Bugsnag MCP with CLI

Google ADK

Use Bugsnag MCP with Google ADK

LangChain

Use Bugsnag MCP with LangChain

Vercel AI SDK

Use Bugsnag MCP with Vercel AI SDK

Mastra AI

Use Bugsnag MCP with Mastra AI

LlamaIndex

Use Bugsnag MCP with LlamaIndex

CrewAI

Use Bugsnag MCP with CrewAI

MORE TOOLKITS

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Codeinterpreter

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Codeinterpreter is a Python-based coding environment with built-in data analysis and visualization. It lets you instantly run scripts, plot results, and prototype solutions inside supported platforms.

GitHub

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GitHub is a code hosting platform for version control and collaborative software development. It streamlines project management, code review, and team workflows in one place.

Ably

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Ably is a real-time messaging platform for live chat and data sync in modern apps. It offers global scale and rock-solid reliability for seamless, instant experiences.

FAQ

Frequently asked questions

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

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 Bugsnag tools.

Yes, absolutely. You can configure which Bugsnag 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.

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 Bugsnag data and credentials are handled as safely as possible.

Start with Bugsnag.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Bugsnag tool your agent needs.Free to start.

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Customer stories

Teams ship real agents on Composio

GET STARTED FOR FREE BOOK A DEMO

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

Harsha Gaddipati

Co-founder, Slashy

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's immensely helped keep new users on the platform.

Abhi Arya

Co-founder, Opennote

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

Nirman Dave

CEO, Zams

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

Ryan Yu

Founder, Extra Thursday

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

Tomisin Jenrola

Founder & CEO, SwarmZero

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.

Jerome Leclanche

Co-Founder, Ingram Technologies

How to integrate Bugsnag MCP with Pydantic AI

Connect Bugsnag without auth hassles

Introduction

Also integrate Bugsnag with

TL;DR

What is Pydantic AI?

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

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

Supported Tools

How to build Bugsnag 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

Supabase

Codeinterpreter

GitHub

Ably

Frequently asked questions

What are the differences in Tool Router MCP and Bugsnag MCP?+

Can I use Tool Router MCP with Pydantic AI?+

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

How safe is my data with Composio Tool Router?+

Start with Bugsnag.It takes 30 seconds.

Teams ship real agents on Composio