How to integrate Swaggerhub MCP with Claude Agent SDK

Connect Claude Agent SDK to Swaggerhub MCP. List all apis i have access to, create a new api named petstore, and more using natural language, with authentication handled for you.

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Swaggerhub

Api Key

Swaggerhub is a collaborative API design and documentation platform built on OpenAPI. It accelerates API delivery, quality, and teamwork with powerful standards and workflow tools.

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Introduction

This guide walks you through connecting Swaggerhub to the Claude Agent SDK using the Composio tool router. By the end, you'll have a working Swaggerhub agent that can list all apis i have access to, create a new api named petstore, update the description for your orders api through natural language commands.

This guide will help you understand how to give your Claude Agent SDK agent real control over a Swaggerhub account through Composio's Swaggerhub MCP server.

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

Also integrate Swaggerhub with

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

TL;DR

Here's what you'll learn:

Get and set up your Claude/Anthropic and Composio API keys
Install the necessary dependencies
Initialize Composio and create a Tool Router session for Swaggerhub
Configure an AI agent that can use Swaggerhub as a tool
Run a live chat session where you can ask the agent to perform Swaggerhub operations

What is Claude Agent SDK?

The Claude Agent SDK is Anthropic's official framework for building AI agents powered by Claude. It provides a streamlined interface for creating agents with MCP tool support and conversation management.

Key features include:

Native MCP Support: Built-in support for Model Context Protocol servers
Permission Modes: Control tool execution permissions
Streaming Responses: Real-time response streaming for interactive applications
Context Manager: Clean async context management for sessions

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

The Swaggerhub MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Swaggerhub account. It provides structured and secure access to your API catalog, OpenAPI definitions, domains, organizations, and projects, so your agent can search API assets, retrieve definitions, review versions, browse projects, and inspect owned APIs on your behalf.

API discovery: Have your agent search Swaggerhub for APIs by relevant terms and find the specifications your team needs.
Definition retrieval: Instruct your agent to retrieve a specific OpenAPI definition or domain definition for review and analysis.
Version review: Let the agent list the available versions of an API so you can compare releases or choose the right specification.
Organization and project browsing: Direct your agent to list your organizations and explore the projects within a chosen organization.
Unified asset search: Have your agent search across APIs, domains, and templates, or list APIs belonging to a specific owner.

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:

Composio API Key and Claude/Anthropic API Key
Primary know-how of Claude Agents SDK
A Swaggerhub account
Some knowledge of Python

Getting API Keys for Claude/Anthropic and Composio

Claude/Anthropic API Key

Go to the Anthropic Console and create an API key. You'll need credits to use the models.
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

npm install @anthropic-ai/claude-agent-sdk @composio/core dotenv

Install the Composio SDK and the Claude Agents SDK.

What's happening:

@composio/core provides Composio integration for Anthropic
@anthropic-ai/claude-agent-sdk is the core agent framework
dotenv/config loads environment variables

Set up environment variables

bash

COMPOSIO_API_KEY=your_composio_api_key_here
USER_ID=your_user_id_here
ANTHROPIC_API_KEY=your_anthropic_api_key_here

Create a .env file in your project root.

What's happening:

COMPOSIO_API_KEY authenticates with Composio
USER_ID identifies the user for session management
ANTHROPIC_API_KEY authenticates with Anthropic/Claude

Import dependencies

import 'dotenv/config';
import readline from 'node:readline';
import { Composio } from '@composio/core';
import { query, type Options } from "@anthropic-ai/claude-agent-sdk";

dotenv.config();

What's happening:

We're importing all necessary libraries including the Claude Agent SDK and Composio
The dotenv.config() function loads environment variables from your .env file
This setup prepares the foundation for connecting Claude with Swaggerhub functionality

Create a Composio instance and Tool Router session

async function chat() {
  const { COMPOSIO_API_KEY, USER_ID } = process.env;
  if (!COMPOSIO_API_KEY || !USER_ID) {
    throw new Error('COMPOSIO_API_KEY and USER_ID required in .env');
  }

  const composio = new Composio({ apiKey: COMPOSIO_API_KEY });

  // Create Tool Router session for Swaggerhub
  const session = await composio.create(USER_ID, {
    toolkits: ['swaggerhub'],
  });
  const mcpUrl = session?.mcp.url;

What's happening:

The function checks for the required COMPOSIO_API_KEY environment variable
We're creating a Composio instance using our API key
The create method creates a Tool Router session for Swaggerhub
The returned url is the MCP server URL that your agent will use

Configure Claude Agent with MCP

const options: Options = {
  permissionMode: 'bypassPermissions',
  mcpServers: {
    composio: {
      type: 'http',
      url: mcpUrl,
      headers: { 'x-api-key': COMPOSIO_API_KEY }
    }
  },
  systemPrompt: 'You are a helpful assistant with access to Swaggerhub tools via Composio.',
  maxTurns: 10,
};

What's happening:

We're configuring the Claude Agent options with the MCP server URL
permissionMode: 'bypassPermissions' allows the agent to execute operations without asking for permission each time
The system prompt instructs the agent that it has access to Swaggerhub
maxTurns: 10 limits the conversation length to prevent excessive API usage

Create client and start chat loop

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

  console.log('\nChat started. Type "exit" to quit.\n');

  let isProcessing = false;

  async function ask(prompt: string) {
    isProcessing = true;
    rl.pause();

    process.stdout.write('Claude is thinking...');
    const stream = query({ prompt, options });

    let firstChunk = true;
    for await (const msg of stream) {
      const content = (msg as any).message?.content || (msg as any).content;
      if (Array.isArray(content)) {
        for (const block of content) {
          if (block.type === 'text' && block.text) {
            if (firstChunk) {
              process.stdout.write('\r\x1b[K');
              process.stdout.write('Claude: ');
              firstChunk = false;
            }
            process.stdout.write(block.text);
          }
        }
      }
    }
    process.stdout.write('\n\n');

    isProcessing = false;
    rl.resume();
    rl.prompt();
  }

  rl.on('line', async (line) => {
    if (isProcessing) return;

    const input = line.trim();
    if (input === 'exit') {
      rl.close();
      process.exit(0);
    }
    if (input) await ask(input);
    else rl.prompt();
  });

  await ask('What can you help me with?');
}

What's happening:

The readline interface is created to handle user input and output
The query function is used to send the user's input to the agent
The chat loop continues until the user types 'exit' or 'quit'

Run the application

try {
  await chat();
} catch (error) {
  console.error(error);
  process.exit(1);
}

What's happening:

The chat function is the entry point for the application
The try-catch block is used to handle any errors that occur

Complete Code

Here's the complete code to get you started with Swaggerhub and Claude Agent SDK:

import 'dotenv/config';
import readline from 'node:readline';
import { Composio } from '@composio/core';
import { query, type Options } from "@anthropic-ai/claude-agent-sdk";

async function chat() {
  const { COMPOSIO_API_KEY, USER_ID } = process.env;
  if (!COMPOSIO_API_KEY || !USER_ID) {
    throw new Error('COMPOSIO_API_KEY and USER_ID required in .env');
  }

  const composio = new Composio({ apiKey: COMPOSIO_API_KEY });
  const session = await composio.create(USER_ID, {
    toolkits: ['swaggerhub']
  });
  const mcp_url = session?.mcp.url;

  const options: Options = {
    permissionMode: 'bypassPermissions',
    mcpServers: {
      composio: {
        type: 'http',
        url: mcp_url,
        headers: { 'x-api-key': COMPOSIO_API_KEY }
      }
    },
    systemPrompt: 'You are a helpful assistant with access to Swaggerhub tools via Composio.',
    maxTurns: 10,
  };

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

  console.log('\nChat started. Type "exit" to quit.\n');

  let isProcessing = false;

  async function ask(prompt: string) {
    isProcessing = true;
    rl.pause();

    process.stdout.write('Claude is thinking...');
    const stream = query({ prompt, options });

    let firstChunk = true;
    for await (const msg of stream) {
      const content = (msg as any).message?.content || (msg as any).content;
      if (Array.isArray(content)) {
        for (const block of content) {
          if (block.type === 'text' && block.text) {
            if (firstChunk) {
              process.stdout.write('\r\x1b[K');
              process.stdout.write('Claude: ');
              firstChunk = false;
            }
            process.stdout.write(block.text);
          }
        }
      }
    }
    process.stdout.write('\n\n');

    isProcessing = false;
    rl.resume();
    rl.prompt();
  }

  rl.on('line', async (line) => {
    if (isProcessing) return;

    const input = line.trim();
    if (input === 'exit') {
      rl.close();
      process.exit(0);
    }
    if (input) await ask(input);
    else rl.prompt();
  });

  await ask('What can you help me with?');
}

try {
  await chat();
} catch (error) {
  console.error(error);
  process.exit(1);
}

Conclusion

You've successfully built a Claude Agent SDK agent that can interact with Swaggerhub through Composio's Tool Router.

Key features:

Native MCP support through Claude's agent framework
Streaming responses for real-time interaction
Permission bypass for smooth automated workflows

You can extend this by adding more toolkits, implementing custom business logic, or building a web interface around the agent.

TOOLS

Supported Tools

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

Add Access Control for Teams

Tool to assign access control roles to teams on a SwaggerHub resource.

Add Access Control for Users

Tool to assign access control roles to users on a SwaggerHub resource.

Delete Table of Contents Entry

Tool to delete a table of contents entry from SwaggerHub portal.

Get Access Control Users

Tool to retrieve the list of users assigned access control on a SwaggerHub resource.

Get API Default Version

Tool to get the default version identifier of a SwaggerHub API.

Get API Versions

Tool to retrieve a list of API versions for a specific API in SwaggerHub.

Get Consumer Products

Tool to get a list of products that are visible to the consumer in a SwaggerHub portal.

Get API Definition

Tool to get the OpenAPI definition of a specified API version from SwaggerHub.

Get Domain Default Version

Tool to retrieve the default version identifier of a SwaggerHub domain.

Get domain definition

Tool to retrieve the OpenAPI definition of a specified domain version from SwaggerHub.

Get Domain JSON Definition

Tool to retrieve the OpenAPI definition for a specified domain version in JSON format.

Get Domain Lifecycle Settings

Tool to get the published status for a specific domain and version in SwaggerHub.

Get Domain Private Settings

Tool to retrieve the visibility (public or private) of a domain version in SwaggerHub.

Get Domain Versions

Tool to get a list of domain versions from SwaggerHub.

Get Domain YAML Definition

Tool to retrieve the OpenAPI definition for a specified domain version in YAML format from SwaggerHub.

Get lifecycle settings

Tool to get the published status for the specified API and version.

Get Organization Members

Tool to retrieve a list of organization members and their roles from SwaggerHub.

Get User Organizations

Tool to get organizations for a user.

Get Organization Projects V2

Tool to get all projects of an organization in SwaggerHub.

Get Owner APIs

Tool to get a list of APIs for a specified owner in SwaggerHub.

Get owner domains

Tool to retrieve domains owned by a specific SwaggerHub user or organization.

Get Portal

Tool to retrieve information about a portal.

Get Portal Access Requests

Tool to retrieve access requests for a portal in SwaggerHub.

Get Portal Attachment

Tool to get informational attachment metadata from SwaggerHub Portal.

Get Portal Product

Tool to retrieve detailed information about a specific product resource.

Get Portal Products

Tool to get products for a specific portal that match your criteria.

Get Portals

Tool to search for available portals.

Get Portal Templates

Tool to get templates for a specific portal that match your criteria.

Get API Version Private Settings

Tool to get the visibility (public or private) of an API version.

List Resource Types and Roles

Tool to list available resource types and assignable roles for each in a SwaggerHub organization.

Get Templates

Tool to retrieve a list of templates for an owner in SwaggerHub.

Get User Roles

Tool to retrieve all roles assigned to a user across organization resources in SwaggerHub.

Get YAML Definition

Tool to get the OpenAPI definition in YAML format for the specified API version from SwaggerHub.

List Attachments

Tool to retrieve all attachments for a portal or product.

Remove Access Control for Teams

Tool to remove access control for teams from a SwaggerHub resource.

Remove Access Control For Users

Tool to remove access control for users from a SwaggerHub organizational resource.

Remove Organization Members

Tool to remove members from a SwaggerHub organization.

Search APIs

Tool to search SwaggerHub APIs.

Search APIs and Domains

Tool to search SwaggerHub APIs, domains, and templates.

Search Domains

Tool to search SwaggerHub domains.

Search Published Portal

Tool to search published portal content.

Update Access Control for Teams

Tool to update access control roles for teams on a SwaggerHub resource.

Update Access Control for Users

Tool to update access control roles for users on a SwaggerHub resource.

Update Portal

Tool to update specific portal information in SwaggerHub.

FRAMEWORKS

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Google ADK

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LangChain

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Vercel AI SDK

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Mastra AI

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LlamaIndex

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FAQ

Frequently asked questions

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

Yes, you can. Claude Agent SDK 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 Swaggerhub tools.

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

Start with Swaggerhub.It takes 30 seconds.

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

Start building

How to integrate Swaggerhub MCP with Claude Agent SDK

Connect Swaggerhub without auth hassles

Introduction

Also integrate Swaggerhub with

TL;DR

What is Claude Agent SDK?

What is the Swaggerhub 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 Claude/Anthropic and Composio

Install dependencies

Set up environment variables

Import dependencies

Create a Composio instance and Tool Router session

Configure Claude Agent with MCP

Create client and start chat loop

Run the application

Complete Code

Conclusion

Supported Tools

How to build Swaggerhub MCP Agent with another framework

Claude Code

Claude Cowork

OpenAI Agents SDK

Codex

OpenClaw

Hermes

Atomic Agent

Google ADK

LangChain

Vercel AI SDK

Mastra AI

LlamaIndex

CrewAI

Pydantic AI

AutoGen

Explore Other Toolkits

Supabase

Codeinterpreter

GitHub

1password

Frequently asked questions

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

Can I use Tool Router MCP with Claude Agent SDK?+

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

How safe is my data with Composio Tool Router?+

Start with Swaggerhub.It takes 30 seconds.