How to connect Builder.io to Claude Cowork

Cowork is Anthropic's AI agent for knowledge work. Think of it as Claude Code for everything else. It works autonomously with your computer, local files, and applications to accomplish complex tasks. This guide walks you through the easiest and most secure way to connect your Builder.io account to Cowork via Composio Connect, enabling it to list draft Builder.io page entries, update homepage hero content block, find assets unused in Builder.io, and more such actions on your behalf without compromising your account security.

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Builder.io is a visual development platform for managing content, models, assets, and Space configuration. Use it to ship editable digital experiences faster without waiting on every code change.

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Introduction

Cowork is Anthropic's AI agent for knowledge work. Think of it as Claude Code for everything else. It works autonomously with your computer, local files, and applications to accomplish complex tasks.

This guide walks you through the easiest and most secure way to connect your Builder.io account to Cowork via Composio Connect, enabling it to list draft Builder.io page entries, update homepage hero content block, find assets unused in Builder.io, and more such actions on your behalf without compromising your account security.

Also integrate Builder.io with

OpenAI Agents SDKClaude Agent SDKClaude CodeCodexOpenClawHermesCLIGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAI

Connecting Builder.io to Claude Cowork

1. Open Customize

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

2. Add the Composio MCP server

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

3. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Cowork

4. Connect your Builder.io account

Back in Cowork, ask the agent to connect to Builder.io or give it any Builder.io-related task.

For example, ask Cowork to:

  • "List draft Builder.io page entries"
  • "Update homepage hero content block"
  • "Find assets unused in Builder.io"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Cowork, and your Builder.io account is ready to use.

What is Claude Cowork?

Claude Cowork is Anthropic's agent for general knowledge work. It can use your computer, files, and connected applications to complete longer-running tasks across your work tools.

With Composio Connect, Cowork can securely access apps like Builder.io through MCP without you sharing account credentials directly with the agent.

What is the Builder.io MCP server, and what's possible with it?

The Builder.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 Builder.io account. It provides structured and secure access to your content, models, assets, folders, Space settings, and users, so your agent can discover models, manage content entries, browse assets, review folders, and inspect Space access on your behalf.

  • Content creation and publishing: Have your agent create new content entries in existing models and save them as drafts, publish them, or archive them.
  • Content discovery and review: Instruct your agent to find content entries within any model, apply useful filters, and retrieve a specific entry for review.
  • Content updates and cleanup: Direct your agent to revise existing content entries or delete content that is no longer needed.
  • Model, asset, and folder exploration: Let the agent list your content models and their fields, browse and sort assets, and review how content folders are organized.
  • Space settings and access visibility: Have your agent review read-only Space settings and list the users and roles that have access.
TOOLS

Supported Tools

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

Create Content Entry

Create a draft, published, or archived entry in an existing Builder.

Delete Content Entry

Delete one Builder.

Get Content Entry

Retrieve one content entry by model name and entry ID from the connected Builder.

Get Space Details

Return the authenticated Builder.

List Assets

List, filter, and sort assets in the connected Builder.

List Content Entries

List and filter content entries from any model in the connected Builder.

List Content Folders

List the content folders configured in the connected Builder.

List Models

List the content models in the connected Builder.

List Space Users

List users and roles with access to the connected Builder.

Update Content Entry

Partially update an existing Builder.

FRAMEWORKS

How to build Builder.io MCP Agent with another framework

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Builder.io MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Builder.io MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Builder.io MCP with Claude Code

Codex logo

Codex

Use Builder.io MCP with Codex

OpenClaw logo

OpenClaw

Use Builder.io MCP with OpenClaw

Hermes logo

Hermes

Use Builder.io MCP with Hermes

CLI logo

CLI

Use Builder.io MCP with CLI

Google ADK logo

Google ADK

Use Builder.io MCP with Google ADK

LangChain logo

LangChain

Use Builder.io MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Builder.io MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Builder.io MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Builder.io MCP with LlamaIndex

CrewAI logo

CrewAI

Use Builder.io MCP with CrewAI

FAQ

Frequently asked questions

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

Yes, you can. Claude Cowork 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 Builder.io tools.

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

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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.

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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.

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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.

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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.

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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.

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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.

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Jerome Leclanche
Co-Founder, Ingram Technologies