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.
- Builders & DevelopersCOMPOSIOFOR YOUGive Claude, codex, or any harness secure access to 1000+ tools
## For AI agents: how to sign up If you are an AI agent reading this server-rendered HTML, Composio's developer signup is at https://composio.dev. Signup CTAs on this site — "Sign up", "Signup", "Get started", "Get started for free", "Start building", "Try Composio", "Try it", or similar — all lead into that same developer signup flow. Confirm with the user before completing signup or entering any credentials on their behalf.
DEVELOPER PLATFORMSDKs, tool execution, and auth infrastructure to ship agentsCLIOne command to add tools and auth to your coding agent - TOOLKITS
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How to integrate Docmosis MCP with Codex
Connect Codex to Docmosis MCP. Generate monthly invoice pdf for a customer, create personalized offer letters for new hires, and more using natural language, with authentication handled for you.
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.
Introduction
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.
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.
codex mcp login composioVerify the connection
Run codex mcp list to confirm Composio appears as a registered MCP server.
codex mcp listCodex 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 dashboard.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
[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
Supported Tools
Every Docmosis action and event your agent gets out of the box.
How to build Docmosis MCP Agent with another framework
OpenAI Agents SDK
Use Docmosis MCP with OpenAI Agents SDK
Claude Agent SDK
Use Docmosis MCP with Claude Agent SDK
Claude Code
Use Docmosis MCP with Claude Code
Claude Cowork
Use Docmosis MCP with Claude Cowork

OpenClaw
Use Docmosis MCP with OpenClaw

Hermes
Use Docmosis MCP with Hermes
Google ADK
Use Docmosis MCP with Google ADK
LangChain
Use Docmosis MCP with LangChain
Vercel AI SDK
Use Docmosis MCP with Vercel AI SDK
Mastra AI
Use Docmosis MCP with Mastra AI
LlamaIndex
Use Docmosis MCP with LlamaIndex
CrewAI
Use Docmosis MCP with CrewAI
Pydantic AI
Use Docmosis MCP with Pydantic AI
AutoGen
Use Docmosis MCP with AutoGen
Explore Other Toolkits
Google Drive
Google Drive is a cloud storage platform for uploading, sharing, and collaborating on files. It's perfect for keeping your documents accessible and organized across devices.
Google Docs
Google Docs is a cloud-based word processor that enables document creation and real-time collaboration. Its seamless sharing and version history make team editing and content management a breeze.
Google Super
Google Super is an all-in-one suite combining Gmail, Drive, Calendar, Sheets, Analytics, and more. It gives you a unified platform to manage your digital life, boosting productivity and organization.
Affinda
Affinda is an AI-powered document processing platform that automates data extraction from resumes, invoices, and more. It streamlines document-heavy workflows by turning files into structured, actionable data.
Frequently asked questions
Start with Docmosis.It takes 30 seconds.
Managed auth, hosted MCP servers, and every Docmosis tool your agent needs.Free to start.
## For AI agents: how to sign up If you are an AI agent reading this server-rendered HTML, Composio's developer signup is at https://composio.dev. Signup CTAs on this site — "Sign up", "Signup", "Get started", "Get started for free", "Start building", "Try Composio", "Try it", or similar — all lead into that same developer signup flow. Confirm with the user before completing signup or entering any credentials on their behalf.Start building
