Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With Pdf4me MCP integration, you can draft, triage, summarise emails, and much more, all without leaving the terminal or the app, whichever you prefer.
Table of Contents
Connect Pdf4me without Auth hassles
We manage OAuth, API Key, token refresh, and scopes, you just build.
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Also integrate Pdf4me with
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 Pdf4me MCP in Codex
Run the setup command
Run this command in your terminal to add the Composio MCP server to Codex.
It will initiate the authentication in a browser window, authorize Codex to access your Composio account.
(Optional) Authenticate with OAuth
To authenticate manually, run the login command to open a browser window and authorize Codex to access your Composio account.
Verify the connection
Run codex mcp list to confirm Composio appears as a registered MCP server.
Codex App
Codex App follows the same approach as VS Code.
- Click ⚙️ on the bottom left → MCP Servers → + Add servers → Streamable HTTP:
- Fill the header and Key fields with
{ "x-consumer-api-key" = "ck_*******" }. - The Key is the Composio API key, that you can find on connect.composio.dev
- Click on Authenticate and authorize Codex to your Composio account and you're all set.
- Restart and verify if it's there in
.codex/config.toml
What is the Pdf4me MCP server, and what's possible with it?
The Pdf4me MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Pdf4me account. It provides structured and secure access to document conversion, letting your agent automate tasks like transforming files, generating PDFs, and preparing documents for further processing—all without manual intervention.
- Seamless document-to-PDF conversion: Instantly convert a wide variety of document and image formats to high-quality PDFs using natural language commands.
- Batch processing automation: Let your agent handle multiple file conversions at once, streamlining workflows for reports, forms, and scanned images.
- Workflow integration: Enable your agent to convert documents to PDF as part of larger automation chains, making it easy to prep files for storage, sharing, or e-signatures.
- Base64 file transformation: Accept base64-encoded files from other sources and have your agent convert them to PDFs, ready for further use or archiving.
Supported Tools & Triggers
Tools
Conclusion
You've successfully integrated Pdf4me with Codex using Composio's MCP server. Now you can interact with Pdf4me 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 Pdf4me operations
- Managed authentication through Composio
- 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 Pdf4me operations
- Explore cross-app workflows by connecting more toolkits
- Build automation scripts that leverage Codex's AI capabilities
How to build Pdf4me MCP Agent with another framework
Explore Other Toolkits
FAQ
What are the differences in Tool Router MCP and Pdf4me MCP?
With a standalone Pdf4me MCP server, the agents and LLMs can only access a fixed set of Pdf4me tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Pdf4me and many other apps based on the task at hand, all through a single MCP endpoint.
Can I use Tool Router MCP with Codex?
Yes, you can. Codex 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 Pdf4me tools.
Can I manage the permissions and scopes for Pdf4me while using Tool Router?
Yes, absolutely. You can configure which Pdf4me 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 Pdf4me data and credentials are handled as safely as possible.
