How to integrate RedCircle API MCP with Claude Code

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Introduction

Manage your RedCircle API directly from Claude Code with zero worries about OAuth hassles, API-breaking issues, or reliability and security concerns.

You can do this in two different ways:

  1. Via Rube - Direct and easiest approach
  2. Via Composio SDK - Programmatic approach with more control

Why Rube?

Rube is a universal MCP server with access to 850+ SaaS apps. It ensures just-in-time tool loading so Claude can access the tools it needs, a remote workbench for programmatic tool calling and handling large tool responses out of the LLM context window, ensuring the LLM context window remains clean.

Connect RedCircle API to Claude Code with Rube

1. Get the MCP URL

Copy and paste the below command in Claude Code to add Rube MCP.

Terminal

2. Authenticate Rube

Run /mcp to view Rube

bash
/mcp
Run /mcp to view Rube in Claude Code
Click on Rube to authenticate
Authentication flow complete

3. Ensure it's connected

Run /mcp again to verify the connection. Now, do whatever you want with Claude Code and RedCircle API.

Rube connected successfully

Supported Tools & Triggers

Tools
Add ZipcodesTool to add zipcodes to your RedCircle API account for geolocation targeting.
Clear Collection RequestsTool to remove all requests from a specified collection.
Create CollectionTool to create a new collection for running up to 15,000 requests on a schedule.
Create DestinationTool to create a new destination for uploading Collection Result Sets to cloud storage.
Create RequestsTool to add up to 1,000 requests to an existing collection.
Delete CollectionTool to remove a collection from the system by ID.
Delete DestinationTool to remove a destination from your RedCircle API account.
Delete Request from CollectionTool to remove an individual request from a collection.
Delete Requests In BulkTool to delete multiple requests from a collection in bulk.
Delete ZipcodesTool to remove zipcodes from your RedCircle API account.
Get Account InformationTool to retrieve account information, usage metrics, and platform status.
Get CollectionTool to retrieve complete information about a specific collection.
Get Requests CSV LinksTool to retrieve CSV download links for all requests in a collection.
Get Requests JSON LinksTool to retrieve download links for all requests in a collection in JSON format.
Get Result Set CSVTool to retrieve a result set in CSV format with optional field filtering.
Get Result Set JSONTool to retrieve a result set in JSON format with download links.
Get Result Set JSON LinesTool to retrieve a result set in JSON Lines format with download links.
Get Target Product DataTool to retrieve Target data in real-time including search results, product information, reviews, or category listings.
List CategoriesTool to retrieve all top-level (root) categories or filter results using optional parameters.
List CollectionsTool to retrieve all collections configured on your RedCircle API account with filtering and pagination.
List DestinationsTool to retrieve all destinations configured on your RedCircle API account with pagination and filtering.
List Error LogsTool to list all error logs on your RedCircle API account.
List Requests by PageTool to retrieve requests for a collection in paginated format.
List Result SetsTool to list all result sets for a collection.
List ZipcodesTool to retrieve all zipcodes associated with your account with optional filtering.
Resend WebhookTool to resend a previously configured webhook POST request for a result set.
Start CollectionTool to initiate execution of a RedCircle API collection.
Stop All CollectionsTool to halt all currently active collections on your account.
Stop CollectionTool to halt an active collection in queued or running state.
Update CollectionTool to update an existing collection's configuration and settings.
Update DestinationTool to modify an existing destination configuration on your RedCircle API account.
Update RequestTool to modify a request within a collection.

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

The RedCircle API MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your RedCircle API account. It provides structured and secure access so your agent can perform RedCircle API operations on your behalf.

Connecting RedCircle API via Tool Router

Tool Router is the underlying tech that powers Rube. It's a universal gateway that does everything Rube does but with much more programmatic control. You can programmatically generate an MCP URL with the app you need (here RedCircle API) for even more tool search precision. It's secure and reliable.

How the Tool Router works

The Tool Router 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:
  • Claude Pro, Max, or API billing enabled Anthropic account
  • Composio API Key
  • A RedCircle API account
  • Basic knowledge of Python or TypeScript

Install Claude Code

bash
# macOS, Linux, WSL
curl -fsSL https://claude.ai/install.sh | bash

# Windows PowerShell
irm https://claude.ai/install.ps1 | iex

# Windows CMD
curl -fsSL https://claude.ai/install.cmd -o install.cmd && install.cmd && del install.cmd

To install Claude Code, use one of the following methods based on your operating system:

Set up Claude Code

bash
cd your-project-folder
claude

Open a terminal, go to your project folder, and start Claude Code:

  • Claude Code will open in your terminal
  • Follow the prompts to sign in with your Anthropic account
  • Complete the authentication flow
  • Once authenticated, you can start using Claude Code
Claude Code initial setup showing sign-in prompt
Claude Code terminal after successful login

Set up environment variables

bash
COMPOSIO_API_KEY=your_composio_api_key_here
USER_ID=your_user_id_here

Create a .env file in your project root with the following variables:

  • COMPOSIO_API_KEY authenticates with Composio (get it from Composio dashboard)
  • USER_ID identifies the user for session management (use any unique identifier)

Install Composio library

pip install composio-core python-dotenv

Install the Composio Python library to create MCP sessions.

  • composio-core provides the core Composio functionality
  • python-dotenv loads environment variables from your .env file

Generate Composio MCP URL

import os
from composio import Composio
from dotenv import load_dotenv

load_dotenv()

COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY")
USER_ID = os.getenv("USER_ID")

composio_client = Composio(api_key=COMPOSIO_API_KEY)

composio_session = composio_client.create(
    user_id=USER_ID,
    toolkits=["redcircle_api"],
)

COMPOSIO_MCP_URL = composio_session.mcp.url

print(f"MCP URL: {COMPOSIO_MCP_URL}")
print(f"\nUse this command to add to Claude Code:")
print(f'claude mcp add --transport http redcircle_api-composio "{COMPOSIO_MCP_URL}" --headers "X-API-Key:{COMPOSIO_API_KEY}"')

Create a script to generate a Composio MCP URL for RedCircle API. This URL will be used to connect Claude Code to RedCircle API.

What's happening:
  • We import the Composio client and load environment variables
  • Create a Composio instance with your API key
  • Call create() to create a Tool Router session for RedCircle API
  • The returned mcp.url is the MCP server URL that Claude Code will use
  • The script prints this URL so you can copy it

Run the script and copy the MCP URL

python generate_mcp_url.py

Run your Python script to generate the MCP URL.

  • The script connects to Composio and creates a Tool Router session
  • It prints the MCP URL and the exact command you need to run
  • Copy the entire claude mcp add command from the output

Add RedCircle API MCP to Claude Code

bash
claude mcp add --transport http redcircle_api-composio "YOUR_MCP_URL_HERE" --headers "X-API-Key:YOUR_COMPOSIO_API_KEY"

# Then restart Claude Code
exit
claude

In your terminal, add the MCP server using the command from the previous step. The command format is:

  • claude mcp add registers a new MCP server with Claude Code
  • --transport http specifies that this is an HTTP-based MCP server
  • The server name (redcircle_api-composio) is how you'll reference it
  • The URL points to your Composio Tool Router session
  • --headers includes your Composio API key for authentication

After running the command, close the current Claude Code session and start a new one for the changes to take effect.

Verify the installation

bash
claude mcp list

Check that your RedCircle API MCP server is properly configured.

  • This command lists all MCP servers registered with Claude Code
  • You should see your redcircle_api-composio entry in the list
  • This confirms that Claude Code can now access RedCircle API tools

If everything is wired up, you should see your redcircle_api-composio entry listed:

Claude Code MCP list showing the toolkit MCP server

Authenticate RedCircle API

The first time you try to use RedCircle API tools, you'll be prompted to authenticate.

  • Claude Code will detect that you need to authenticate with RedCircle API
  • It will show you an authentication link
  • Open the link in your browser (or copy/paste it)
  • Complete the RedCircle API authorization flow
  • Return to the terminal and start using RedCircle API through Claude Code

Once authenticated, you can ask Claude Code to perform RedCircle API operations in natural language. For example:

  • "Search Target for Nintendo Switch bundles"
  • "Get reviews for Dyson vacuums at Target"
  • "List top-rated Target products in electronics"

Complete Code

Here's the complete code to get you started with RedCircle API and Claude Code:

import os
from composio import Composio
from dotenv import load_dotenv

load_dotenv()

COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY")
USER_ID = os.getenv("USER_ID")

composio_client = Composio(api_key=COMPOSIO_API_KEY)

composio_session = composio_client.create(
    user_id=USER_ID,
    toolkits=["redcircle_api"],
)

COMPOSIO_MCP_URL = composio_session.mcp.url

print(f"MCP URL: {COMPOSIO_MCP_URL}")
print(f"\nUse this command to add to Claude Code:")
print(f'claude mcp add --transport http redcircle_api-composio "{COMPOSIO_MCP_URL}" --headers "X-API-Key:{COMPOSIO_API_KEY}"')

Conclusion

You've successfully integrated RedCircle API with Claude Code using Composio's MCP server. Now you can interact with RedCircle API directly from your terminal using natural language commands.

Key features of this setup:

  • Terminal-native experience without switching contexts
  • Natural language commands for RedCircle API operations
  • Secure authentication through Composio's managed MCP
  • Tool Router for dynamic tool discovery and execution

Next steps:

  • Try asking Claude Code to perform various RedCircle API operations
  • Add more toolkits to your Tool Router session for multi-app workflows
  • Integrate this setup into your development workflow for increased productivity

You can extend this by adding more toolkits, implementing custom workflows, or building automation scripts that leverage Claude Code's capabilities.

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FAQ

What are the differences in Tool Router MCP and RedCircle API MCP?

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

Can I use Tool Router MCP with Claude Code?

Yes, you can. Claude Code 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 RedCircle API tools.

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

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

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