How to integrate Basin MCP with Codex

Connect Codex to Basin MCP. Create a new form for event signups, delete an old feedback form from project, and more using natural language, with authentication handled for you.

Basin logoBasin
Api Key

Basin is a no-code form backend for quickly setting up reliable contact forms. It lets you collect and manage form submissions without writing any server-side code.

19 Tools

Introduction

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

Also integrate Basin 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 1500+ 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 Basin 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 Basin MCP server, and what's possible with it?

The Basin MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Basin account. It provides structured and secure access to your projects, forms, submissions, domains, and webhooks, so your agent can create forms, manage projects, review submissions, configure webhooks, and inspect form activity on your behalf.

  • Project and form management: Have your agent create, update, list, inspect, or delete Basin projects and forms.
  • Submission review and cleanup: Instruct your agent to search, filter, sort, review, and permanently delete form submissions.
  • Webhook configuration: Let the agent create, inspect, update, list, or delete webhooks associated with your forms.
  • Form configuration and activity: Direct your agent to retrieve form settings, notification and security options, branding details, submission counts, and form views.
  • Custom domain lookup: Have your agent list the custom domains associated with your Basin account.

Conclusion

You've successfully integrated Basin with Codex using Composio's MCP server. Now you can interact with Basin 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 Basin operations
  • Managed authentication through Composio
  • Access to 20,000+ tools across 1500+ apps for cross-app workflows
  • CodeAct workbench for complex tool chaining

Next steps:

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

Supported Tools

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

Create Form

Tool to create a new form in Basin.

Create Form Webhook

Tool to create a new webhook for a specific form.

Create Project

Tool to create a new Basin project.

Delete Form

Tool to delete a form.

Delete Project

Tool to delete a project.

Delete Submission

Tool to permanently delete a form submission by its ID.

Delete Webhook

Tool to delete a specific webhook.

Get Domains

Tool to retrieve a list of all custom domains associated with the Basin account.

Get Form Details

Retrieves comprehensive details about a specific Basin form including configuration, notification settings, security options, branding, webhooks, and submission counts.

Get Forms

Retrieves a list of all Basin forms with their configuration and metadata.

Get Form Webhook

Tool to retrieve details of a specific form webhook by its ID.

Get Project Details

Tool to retrieve detailed information about a specific project.

Get Projects

Retrieves a list of Basin projects from your account.

Get Submissions

Retrieve form submissions from Basin with optional filtering, sorting, and search capabilities.

Get Webhooks

Tool to retrieve all webhooks associated with a specific form.

List Form Views

Retrieves a list of all Basin form views with their configuration and metadata.

Update Form

Tool to update an existing Basin form by ID.

Update Project

Tool to update details of an existing project.

Update Webhook

Tool to update settings of an existing webhook for a form.

FAQ

Frequently asked questions

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

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

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