How to integrate Api2pdf MCP with Codex

Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With Api2pdf MCP integration, you can draft, triage, summarise emails, and much more, all without leaving the terminal or app, whichever you prefer.

Composio removes the Authentication handling completely from you. We handle the entire integration lifecycle, and all you need to do is just copy the URL below, authenticate inside Codex, and start using it.

Why use Composio?

Apart from a managed and hosted MCP server, you will get:

• CodeAct: A dedicated workbench that allows GPT to write its code to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling.
• Large tool responses: Handle them to minimise context rot.
• Dynamic just-in-time access to 20,000 tools across 870+ other Apps for cross-app workflows. It loads the tools you need, so GPTs aren't overwhelmed by tools you don't need.

How to install Api2pdf MCP in Codex

Codex CLI

Run the command in your terminal.

This will auto-redirect you to the Rube authentication page.

Once you're authenticated, you will be able to access the tools.

Verify the installation by running:

codex mcp list

If you otherwise prefer to use config.toml, add the following URL to it. You can get the bearer token from rube.app → Use Rube → MCP URL → Generate token

[projects."/home/user/composio"]
trust_level = "untrusted"

[mcp_servers.rube]
bearer_token_env_var = "your bearer token"
enabled = true
url = "https://rube.app/mcp"

Codex in VS Code

If you have installed Codex in VS Code.

Then: ⚙️ → MCP Settings → + Add servers → Streamable HTTP:

Add the Rube MCP URL: https://rube.app/mcp and the bearer token.

To verify, click on the Open config.toml

Make sure it's there:

[mcp_servers.composio_rube]
bearer_token_env_var = "your bearer token"
enabled = true
url = "https://rube.app/mcp"

Codex App

Codex App follows the same approach as VS Code.

1. Click ⚙️ on the bottom left → MCP Servers → + Add servers → Streamable HTTP:

2. Restart and verify if it's there in .codex/config.toml

[mcp_servers.composio_rube]
bearer_token_env_var = "your bearer token"
enabled = true
url = "https://rube.app/mcp"

3. Save, restart the extension, and start working.

The Api2pdf MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Api2pdf account. It provides structured and secure access to powerful PDF generation and manipulation features, so your agent can generate PDFs from HTML or URLs, merge or optimize documents, extract or reorder pages, and more—automatically and on your behalf.

• PDF generation from web content: Instruct your agent to convert HTML or URLs into high-quality PDFs using engines like wkhtmltopdf or Headless Chrome.
• Merge and optimize PDFs: Have your agent combine multiple PDFs into a single file or optimize existing documents to reduce file size without sacrificing quality.
• Advanced PDF manipulation: Direct your agent to extract specific pages, reorder existing pages, or add custom headers and footers for consistent branding or page numbering.
• Barcode and QR code generation: Let your agent instantly create barcode or QR code images from any text value, ready to embed in documents or use elsewhere.
• Document conversion and preview: Ask your agent to convert PDFs to HTML with LibreOffice or generate thumbnail previews for quick visual reference.

Conclusion

You've successfully integrated Api2pdf with Codex using Composio's Rube MCP server. Now you can interact with Api2pdf directly from your terminal, VS Code, or the Codex App using natural language commands.

Key benefits of this setup:

• Seamless integration across CLI, VS Code, and standalone app
• Natural language commands for Api2pdf operations
• Managed authentication through Composio's Rube
• Access to 20,000+ tools across 870+ apps for cross-app workflows
• CodeAct workbench for complex tool chaining

Next steps:

• Try asking Codex to perform various Api2pdf operations
• Explore cross-app workflows by connecting more toolkits
• Build automation scripts that leverage Codex's AI capabilities