How to integrate Docmosis MCP with Codex

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

Docmosis logoDocmosis
Api Key

Docmosis generates PDF and Word documents from user-defined templates. It's perfect for merging data fields to quickly produce reports, invoices, and business letters.

17 Tools

Introduction

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

Also integrate Docmosis 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 1000+ 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 Docmosis MCP in Codex

Run the setup command

Run this command in your terminal to add the Composio MCP server to Codex.

Terminal

It will initiate the authentication in a browser window, authorize Codex to access your Composio account.

Composio authentication page

(Optional) Authenticate with OAuth

To authenticate manually, run the login command to open a browser window and authorize Codex to access your Composio account.

bash
codex mcp login composio

Verify the connection

Run codex mcp list to confirm Composio appears as a registered MCP server.

bash
codex mcp list

Codex App

Codex App follows the same approach as VS Code.

  1. Click ⚙️ on the bottom left → MCP Servers → + Add servers → Streamable HTTP:
  2. Fill the header and Key fields with { "x-consumer-api-key" = "ck_*******" }.
  3. The Key is the Composio API key, that you can find on dashboard.composio.dev
  4. Click on Authenticate and authorize Codex to your Composio account and you're all set.
Codex App MCP setup
  1. Restart and verify if it's there in .codex/config.toml
bash
[mcp_servers.composio]
url = "https://connect.composio.dev/mcp"
http_headers = { "x-consumer-api-key" = "ck_*******" }

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

The Docmosis MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Docmosis account. It provides structured and secure access to your document templates and generation capabilities, so your agent can perform actions like generating documents, merging data fields, exporting PDFs or Word files, and automating report creation on your behalf.

  • Dynamic document generation: Instantly create PDF or Word documents from pre-built templates by merging in your custom data fields.
  • Automated report and invoice creation: Let your agent assemble business reports, invoices, or letters using real-time input and reusable templates.
  • Template management and selection: Retrieve, list, and select from available templates for different document types or business needs.
  • Batch document processing: Generate multiple documents at once by feeding bulk data sets—perfect for automating repetitive paperwork.
  • Flexible file export and delivery: Export generated documents in your preferred format and deliver them to specified locations, systems, or users automatically.

Conclusion

You've successfully integrated Docmosis with Codex using Composio's MCP server. Now you can interact with Docmosis 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 Docmosis operations
  • Managed authentication through Composio
  • Access to 20,000+ tools across 1000+ apps for cross-app workflows
  • CodeAct workbench for complex tool chaining

Next steps:

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

Supported Tools

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

Docmosis: Delete Image(s)

Tool to delete one or more stored images.

Docmosis: Delete Template(s)

Tool to delete one or more templates from the environment.

Docmosis Environment Ready

Tool to verify environment readiness.

Docmosis Environment Summary

Tool to retrieve environment summary.

Docmosis: Get API Key

Tool to extract the Docmosis API access key from connection metadata.

Get Batch Upload Status

Tool to check the status of a template batch upload job.

Download Docmosis Images

Tool to download one or more images.

Get Docmosis Render Queue

Tool to get current render queue status and utilization.

Get Render Tags

Tool to retrieve statistics on renders tagged with user-defined phrases.

Get Template Sample Data

Tool to generate sample data for a Docmosis template based on its structure.

Download Docmosis Templates

Tool to retrieve originally uploaded templates.

Get Docmosis Template Details

Tool to retrieve metadata for an uploaded template.

Get Docmosis Template Structure

Tool to retrieve a template's parsed structure: fields, repeats, conditions, images, and refs.

Docmosis: List Images

Tool to list available stock images.

Docmosis: List Templates

Tool to list all templates available in the environment.

Docmosis Ping

Tool to check connectivity to Docmosis Cloud services.

Ping Docmosis Service

Tool to check that Docmosis Cloud services are online and at least one server is listening.

FAQ

Frequently asked questions

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

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 Docmosis tools.

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

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