How to integrate Dotsimple MCP with Codex

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Introduction

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

Also integrate Dotsimple 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 Dotsimple 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 Dotsimple MCP server, and what's possible with it?

The Dotsimple MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Dotsimple account. It provides structured and secure access to your social media management tools, so your agent can create, organize, and schedule content, fetch analytics, and manage media with ease.

  • Seamless content planning and publishing: Instruct your agent to list posts, schedule content, and manage publishing workflows across all your connected social media accounts.
  • Media library management: Effortlessly browse, retrieve, and delete media files, making content curation and cleanup simple and automated.
  • Custom tag creation and organization: Have your agent create new tags, fetch tag details, or remove unwanted tags to keep your content organized and searchable.
  • Performance analytics and reporting: Quickly fetch account-level reports and metrics, enabling your agent to deliver insights and optimize your social media strategy.
  • Autoresponder management: Let your agent list and review all autoresponders, so you can easily keep tabs on automated engagement tools.

Supported Tools & Triggers

Tools
Create TagCreate a new tag in DotSimple workspace for categorizing and organizing social media content.
Delete Media FilesDeletes one or more media files (images/videos) from your DotSimple workspace.
Delete TagDelete a tag by its UUID from your DotSimple workspace.
Get Media FileTool to retrieve details of a specific media file.
Get Tag by UUIDTool to retrieve details for a specific tag by UUID.
List AccountsList all connected social media accounts in the DotSimple workspace.
List AutorespondersList all autoresponders in the DotSimple workspace with optional pagination.
List Media FilesList all media files in a DotSimple workspace with optional pagination.
List PostsList all posts in a DotSimple workspace with optional pagination.
List ReportsList all account-level email marketing reports from the DotSimple workspace.
List TagsList all tags available in a DotSimple workspace for content organization and categorization.

Conclusion

You've successfully integrated Dotsimple with Codex using Composio's MCP server. Now you can interact with Dotsimple 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 Dotsimple 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 Dotsimple operations
  • Explore cross-app workflows by connecting more toolkits
  • Build automation scripts that leverage Codex's AI capabilities

How to build Dotsimple MCP Agent with another framework

FAQ

What are the differences in Tool Router MCP and Dotsimple MCP?

With a standalone Dotsimple MCP server, the agents and LLMs can only access a fixed set of Dotsimple tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Dotsimple 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 Dotsimple tools.

Can I manage the permissions and scopes for Dotsimple while using Tool Router?

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

Used by agents from

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Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai
Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai

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