How to integrate Quo MCP with Codex

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

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Api Key

Quo is a business phone platform for calls, SMS, contacts, and team conversations. It helps teams manage customer communication from one shared, searchable workspace.

36 Tools

Introduction

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

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

The Quo MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Quo account. It provides structured and secure access to your business calls, messages, contacts, conversations, tasks, users, and webhooks, so your agent can review calls, send text messages, manage contacts, organize conversations and tasks, and monitor webhook activity on your behalf.

  • Call and voicemail review: Have your agent review call participants, routing, status, timing, recordings, voicemail transcripts, and recording details.
  • Messaging and conversation management: Direct your agent to find and read messages, send texts from your Quo numbers, and mark conversations as read, open, or done.
  • Contact organization: Let the agent create, find, update, or delete contacts while working with standard details, custom fields, and external source information.
  • Task coordination: Instruct your agent to create and edit tasks, connect them to calls or conversations, assign teammates, set due dates, and complete or reopen work.
  • Webhook monitoring: Have your agent create, update, review, or remove webhook subscriptions and inspect their delivery activity and outcomes.

Conclusion

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

Supported Tools

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

Create Contact

Create a Quo contact with standard fields, optional custom fields, and external source metadata.

Create Task

Create a task linked to exactly one phone number, conversation, or activity.

Create Webhook

Create one unified webhook subscription for selected Quo events and return its signing secret, which must be stored securely.

Delete Contact

Permanently delete one Quo contact by ID.

Delete Task

Permanently delete one Quo task by ID.

Delete Webhook

Permanently delete one unified Quo webhook and revoke its signing secret.

Get Call

Get one call and its routing, participants, status, and timing details by ID.

Get Call Voicemail

Get voicemail processing status, transcript, duration, and recording URL for a Quo call.

Get Contact

Get one contact with default and custom fields by Quo contact ID.

Get Message

Get one message by Quo message ID, including its content, related IDs, participants, delivery status, and timestamps.

Get Phone Number

Get one Quo phone number and its assignments and restrictions by ID.

Get Task

Get one task and its current links, assignee, due date, and completion state.

Get User

Get one workspace user by Quo user ID.

Get Webhook

Get one unified Quo webhook by its numeric ID.

Get Webhook Delivery

Get the payload and attempt details for one Quo webhook delivery event.

List Call Recordings

List recording segments for a Quo call in chronological order.

List Calls

List calls between a Quo number and one external participant with optional user and creation-time filters.

List Contact Custom Fields

List the workspace's contact custom-field definitions for constructing valid contact values.

List Contacts

List contacts, optionally filtered by external IDs or source, with stable-v1 phone and custom fields.

List Conversations

List inbox conversations with optional phone-number, user, creation-time, update-time, and inactive-state filters.

List Messages

List messages exchanged by a Quo phone number and one or more participants, optionally filtered by sender or creation time.

List Phone Numbers

List Quo phone numbers and their assigned users, calling restrictions, and messaging restrictions.

List Tasks

List workspace tasks with cursor-controlled pagination.

List Users

List workspace users and return one cursor-controlled page.

List Webhook Deliveries

List one page of delivery events for a unified Quo webhook, optionally filtered by status, event type, or dispatch time.

List Webhooks

List unified Quo webhooks across call, message, contact, task, and integration event families.

Send Message

Send an irreversible text message from a Quo number to one or more recipients.

Send Message and Mark Conversation Done

Send an irreversible text message from a Quo number and move the resulting inbox conversation to Done.

Set Conversation Status

Set a Quo conversation to read, done, or open.

Set Task Assignee

Assign or unassign a Quo user on a task.

Set Task Completion

Complete or reopen a Quo task.

Set Task Conversation Link

Link or unlink a Quo task and conversation.

Set Task Due Date

Set or remove a Quo task's due date.

Update Contact

Patch selected standard, custom, or source fields on an existing Quo contact.

Update Task

Replace both the title and description of an existing Quo task.

Update Webhook

Partially update a unified Quo webhook.

FAQ

Frequently asked questions

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

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

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