How to integrate Studio By Ai21 Labs MCP with Claude Code

GET STARTED FOR FREE
Framework Integration Gradient
Studio By Ai21 Labs Logo
Claude Code Logo
divider

Introduction

Manage your Studio By Ai21 Labs 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 Studio By Ai21 Labs 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 Studio By Ai21 Labs.

Rube connected successfully

Supported Tools & Triggers

Tools
Check Can IframeTool to check if a URL can be embedded in an iframe.
Compare TextTool to compare two text strings and identify differences.
Create Aftersales Parts Classification BatchTool to create a batch job for Fnac Aftersales parts classification.
Create Assistant RouteTool to create a new route for an AI21 Studio assistant.
Create AssistantTool to create a new AI assistant in AI21 Studio.
Create Assistant PlanTool to create a new plan for an AI21 Studio assistant.
Create DemoTool to create a new demo in AI21 Studio.
Generate RequirementsTool to generate requirements from a query or task description.
Generate Thread NameTool to generate a thread name from a query or conversation context.
Create Kirsh Grant Compliance PreviewTool to preview grant compliance for Kirsh grants.
Kirsh Grant Metadata PreviewTool to retrieve grant metadata from the Kirsh preview endpoint.
Create MCP StorageTool to create MCP (Model Context Protocol) storage in AI21 Studio.
Create SecretTool to save a secret in AI21 Studio.
Check Kirsh Grant ComplianceTool to check compliance for Kirsh grant IDs.
Create Website ConnectorTool to create a website connector in AI21 Studio.
Delete AssistantTool to delete an assistant by its unique ID.
Delete Assistant RouteTool to delete a route from an AI21 Studio assistant.
Delete DemoTool to delete a demo by its unique ID.
Delete MCP StorageTool to delete an MCP (Model Context Protocol) storage configuration by its unique ID.
Delete SecretTool to delete a secret by its unique ID.
Delete Website ConnectorPermanently delete a website connector by its unique identifier.
Download Modified DocumentTool to download a modified document from AI21 Labs Studio.
Get AssistantTool to retrieve an assistant by its unique identifier.
Get Assistant RouteTool to retrieve details of a specific route for an AI21 Studio assistant.
Get Assistants By MCPTool to retrieve all assistants associated with a specific MCP (Model Context Protocol) storage configuration.
Get Batch Prediction StatusTool to check the status of a Fnac Aftersales parts classification batch prediction job.
Get DemoTool to retrieve a demo by its unique ID.
Grant Kirsh MetadataTool to retrieve Kirsh grant metadata by grant ID.
Get Library Batch StatusTool to get the ingestion status of a library batch.
Get MCP StorageTool to retrieve a specific MCP (Model Context Protocol) storage configuration by its unique ID.
Get Output ExplanationTool to get output explanation for an execution (cached or generated).
Get PlanTool to retrieve a specific plan from an AI21 Studio assistant.
Get Website Connector By IDTool to retrieve details of a specific website connector by its ID.
Get Website Connector StatusTool to retrieve the status of a website connector ingestion.
Get Website Connector URL StatusTool to retrieve the status of a specific URL in the website connector.
Ingest Website ConnectorTool to ingest website content via sitemap URL in AI21 Studio.
Ingest Website Connector URLTool to ingest a website URL into AI21 Studio's website connector.
List AssistantsTool to retrieve all assistants from AI21 Studio.
List Website ConnectorsTool to retrieve website connector information from AI21 Studio.
List DemosTool to retrieve all demos from AI21 Studio.
List Library FilesTool to list files in the workspace library with optional filtering.
List MCP StorageTool to retrieve all MCP (Model Context Protocol) storage configurations from AI21 Studio.
List ModelsTool to retrieve information about all available AI21 models.
List PlansTool to list all plans for a specific assistant.
List SecretsTool to retrieve all secrets from AI21 Studio secret storage.
List Workspace ModelsTool to retrieve all workspace models by organization from AI21 Studio.
List Available ModelsTool to retrieve all available models from AI21 Studio settings.
Modify AssistantTool to modify an existing AI21 Studio assistant.
Modify Assistant RouteTool to modify an existing route within an assistant.
Modify Assistant PlanTool to modify an existing assistant plan in AI21 Studio.
Retry Ingest WebsiteTool to retry ingestion of a website in AI21 Studio.
Run AssistantTool to run an AI21 Studio assistant with conversational input.
Sync Website ConnectorTool to sync a website connector in AI21 Studio.
Update DemoTool to update an existing demo in Studio by AI21 Labs.
Update MCP StorageTool to update an existing MCP (Model Context Protocol) storage configuration in AI21 Studio.
Update SecretTool to update an existing secret in AI21 Studio.
Validate PlanTool to validate Python code for an AI21 Studio assistant plan.

What is the Studio By Ai21 Labs MCP server, and what's possible with it?

The Studio By Ai21 Labs MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Studio By Ai21 Labs account. It provides structured and secure access so your agent can perform Studio By Ai21 Labs operations on your behalf.

Connecting Studio By Ai21 Labs 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 Studio By Ai21 Labs) 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 Studio By Ai21 Labs 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=["studio_by_ai21_labs"],
)

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 studio_by_ai21_labs-composio "{COMPOSIO_MCP_URL}" --headers "X-API-Key:{COMPOSIO_API_KEY}"')

Create a script to generate a Composio MCP URL for Studio By Ai21 Labs. This URL will be used to connect Claude Code to Studio By Ai21 Labs.

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 Studio By Ai21 Labs
  • 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 Studio By Ai21 Labs MCP to Claude Code

bash
claude mcp add --transport http studio_by_ai21_labs-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 (studio_by_ai21_labs-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 Studio By Ai21 Labs MCP server is properly configured.

  • This command lists all MCP servers registered with Claude Code
  • You should see your studio_by_ai21_labs-composio entry in the list
  • This confirms that Claude Code can now access Studio By Ai21 Labs tools

If everything is wired up, you should see your studio_by_ai21_labs-composio entry listed:

Claude Code MCP list showing the toolkit MCP server

Authenticate Studio By Ai21 Labs

The first time you try to use Studio By Ai21 Labs tools, you'll be prompted to authenticate.

  • Claude Code will detect that you need to authenticate with Studio By Ai21 Labs
  • It will show you an authentication link
  • Open the link in your browser (or copy/paste it)
  • Complete the Studio By Ai21 Labs authorization flow
  • Return to the terminal and start using Studio By Ai21 Labs through Claude Code

Once authenticated, you can ask Claude Code to perform Studio By Ai21 Labs operations in natural language. For example:

  • "Generate a summary of this research paper"
  • "Classify sentiment of this product review"
  • "Extract key topics from meeting transcript"

Complete Code

Here's the complete code to get you started with Studio By Ai21 Labs 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=["studio_by_ai21_labs"],
)

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 studio_by_ai21_labs-composio "{COMPOSIO_MCP_URL}" --headers "X-API-Key:{COMPOSIO_API_KEY}"')

Conclusion

You've successfully integrated Studio By Ai21 Labs with Claude Code using Composio's MCP server. Now you can interact with Studio By Ai21 Labs directly from your terminal using natural language commands.

Key features of this setup:

  • Terminal-native experience without switching contexts
  • Natural language commands for Studio By Ai21 Labs 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 Studio By Ai21 Labs 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.

How to build Studio By Ai21 Labs MCP Agent with another framework

OpenAI Agents SDK

OpenAI Agents SDK

Use Studio By Ai21 Labs MCP with OpenAI Agents SDK

Claude Agent SDK

Claude Agent SDK

Use Studio By Ai21 Labs MCP with Claude Agent SDK

Google ADK

Google ADK

Use Studio By Ai21 Labs MCP with Google ADK

LangChain

LangChain

Use Studio By Ai21 Labs MCP with LangChain

Vercel AI SDK

Vercel AI SDK

Use Studio By Ai21 Labs MCP with Vercel AI SDK

Mastra AI

Mastra AI

Use Studio By Ai21 Labs MCP with Mastra AI

LlamaIndex

LlamaIndex

Use Studio By Ai21 Labs MCP with LlamaIndex

CrewAI

CrewAI

Use Studio By Ai21 Labs MCP with CrewAI

Codex

Codex

Use Studio By Ai21 Labs MCP with Codex

FAQ

What are the differences in Tool Router MCP and Studio By Ai21 Labs MCP?

With a standalone Studio By Ai21 Labs MCP server, the agents and LLMs can only access a fixed set of Studio By Ai21 Labs tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Studio By Ai21 Labs 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 Studio By Ai21 Labs tools.

Can I manage the permissions and scopes for Studio By Ai21 Labs while using Tool Router?

Yes, absolutely. You can configure which Studio By Ai21 Labs 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 Studio By Ai21 Labs data and credentials are handled as safely as possible.

Used by agents from

Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai
Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai
Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai

Never worry about agent reliability

We handle tool reliability, observability, and security so you never have to second-guess an agent action.

Book a call↗Get started for free