How to integrate Short io MCP with Pydantic AI

This guide walks you through connecting Short io to Pydantic AI using the Composio tool router. By the end, you'll have a working Short io agent that can show click stats for your latest short links, list most popular short urls this month, get opengraph settings for a specific link through natural language commands. This guide will help you understand how to give your Pydantic AI agent real control over a Short io account through Composio's Short io MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved.

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Short io

Api Key

Short.io is a URL shortening service that lets you create and manage branded short links. Easily track link performance and analytics for every campaign.

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Introduction

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

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

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

The Short io MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Short io account. It provides structured and secure access to your branded short links, so your agent can create and manage links, retrieve analytics, organize domains, and optimize your link campaigns automatically.

Automated branded link creation and management: Instantly generate new short links, fetch details, update metadata, and organize your links by domain—all on demand.
Comprehensive click analytics and statistics: Retrieve detailed click metrics for individual links or aggregated data by domain to track performance and measure engagement.
Popular path and traffic insights: Analyze the most visited short link paths in your domains over time to understand which content resonates with your audience.
Granular permissions and access control: Check and manage user permissions on links within your domains, ensuring secure collaboration and streamlined workflows.
Open Graph and targeting customization: Review and adjust Open Graph properties for better link previews and set up advanced targeting rules by region or country to maximize reach.

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

What's happening:

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

Add Tag to Links in Bulk

Tool to append a single tag to multiple short links in one call.

Archive Link

Archive a short link, hiding it from the dashboard while keeping it accessible.

Create Folder

Tool to create a new folder for organizing links within a domain.

Create Short Link

Tool to create a new short link from a long URL on your branded domain.

Delete Link

Tool to permanently delete a short link by its unique ID.

Delete Link Permission

Revokes a specific user's access permission for a short link.

Delete Links in Bulk

Delete multiple short links in a single API call (up to 150 links).

Duplicate Link

Tool to duplicate an existing short link by its ID.

Generate QR Code for Link

Tool to generate a QR code for a short link.

Get Bundle Templates

Tool to retrieve all available bundle templates.

Get Domain Details by ID

Tool to retrieve detailed information for a specific domain by its ID.

Get Domain Link Clicks

Tool to get click statistics for specific links in a domain.

Get Domain Paths

Tool to list the most popular paths in a domain over time.

Get Domain Statistics

Tool to get comprehensive statistics for a domain over a specified period.

Get Folder

Tool to retrieve folder details by ID.

Get Link by Original URL

Tool to get link info by original URL.

Get Link Countries

Tool to get country targeting rules for a short link.

Get Link Info by Link ID

Retrieves comprehensive metadata for a short link using its unique ID.

Get Link Info by Path

Tool to get link info by its path and domain.

Get Link OpenGraph Properties

Tool to retrieve OpenGraph settings for a link.

Get Link Permissions

Retrieves all user access permissions for a specific short link within a domain.

Get Link Regions by Country

Tool to list all regions available for a country.

Get Link Regions

Retrieves all region-based targeting rules configured for a specific short link.

Get Links by Original URL

Tool to get multiple links info by original URL.

Get Links List

Tool to list short links on a domain with optional filters.

Get Link Statistics

Tool to get click statistics for a specific link.

Get Link (Tweetbot)

Create a short link using the simplified Tweetbot GET endpoint.

List Domains

Tool to retrieve all domains associated with the Short.

List Folders

Tool to list all folders for a specific domain.

Post Domain Link Clicks

Tool to get click statistics for specific links in a domain using POST method.

Get Domain Statistics by Interval

Tool to retrieve domain statistics over a custom interval.

Post Domains Last Clicks

Tool to retrieve the latest raw click events for a domain.

Get Domain Statistics

Tool to get detailed statistics for a domain over a specified period.

Get Domain Top Values

Retrieves top values for a specified analytics column ranked by click count for a domain.

Archive Links in Bulk

Archive multiple short links in a single API call (up to 150 links).

Create Links in Bulk

Tool to create up to 1000 short links in one call.

Generate QR Codes in Bulk

Tool to generate QR codes for multiple links in bulk.

Unarchive Links in Bulk

Unarchive multiple short links in bulk (up to 150 links per request).

Unarchive Link

Unarchive a previously archived short link to restore it to active status.

Update Domain Settings

Tool to update domain settings for a Short.

Update Link

Tool to update an existing short link by its ID.

FRAMEWORKS

How to build Short io MCP Agent with another framework

OpenAI Agents SDK

Use Short io MCP with OpenAI Agents SDK

Claude Agent SDK

Use Short io MCP with Claude Agent SDK

Claude Code

Use Short io MCP with Claude Code

Claude Cowork

Use Short io MCP with Claude Cowork

Codex

Use Short io MCP with Codex

OpenClaw

Use Short io MCP with OpenClaw

Hermes

Use Short io MCP with Hermes

CLI

Use Short io MCP with CLI

Google ADK

Use Short io MCP with Google ADK

LangChain

Use Short io MCP with LangChain

Vercel AI SDK

Use Short io MCP with Vercel AI SDK

Mastra AI

Use Short io MCP with Mastra AI

LlamaIndex

Use Short io MCP with LlamaIndex

CrewAI

Use Short io MCP with CrewAI

MORE TOOLKITS

Explore Other Toolkits

Toolkit marketplace

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Reddit is a social news platform with thriving user-driven communities (subreddits). It's the go-to place for discussion, content sharing, and viral marketing.

Facebook

Oauth2

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Oauth2

LinkedIn is a professional networking platform for connecting, sharing content, and engaging with business opportunities. It's the go-to place for building your professional brand and unlocking new career connections.

Active campaign

Api Key

ActiveCampaign is a marketing automation and CRM platform for managing email campaigns, sales pipelines, and customer segmentation. It helps businesses engage customers and drive growth through smart automation and targeted outreach.

FAQ

Frequently asked questions

With a standalone Short io MCP server, the agents and LLMs can only access a fixed set of Short io tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Short io 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 Short io tools.

Yes, absolutely. You can configure which Short io 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 Short io data and credentials are handled as safely as possible.

Start with Short io.It takes 30 seconds.

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

Start building

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 Short io MCP with Pydantic AI

Connect Short io without auth hassles

Introduction

Also integrate Short io with

TL;DR

What is Pydantic AI?

What is the Short io 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 Short io 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

Active campaign

Frequently asked questions

What are the differences in Tool Router MCP and Short io MCP?+

Can I use Tool Router MCP with Pydantic AI?+

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

How safe is my data with Composio Tool Router?+

Start with Short io.It takes 30 seconds.

Teams ship real agents on Composio