Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With the Ably MCP integration, Codex can publish messages to channels, read channel history and presence, send push notifications, manage push devices, and check app stats, all without leaving the terminal or the app, whichever you prefer.
- UseBuildFeaturesTRIGGERSStart background agents from events across your connected appsFIREWALLNEWBlocks instructions hidden in tool results before your agent reads themINSTANTNEWAudio, video, search, browser and data tools, with no keys to manageOPTIMIZATIONLower cost per completed task with optimised tools and skills
- DOCS
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How to integrate Ably MCP with Codex
Connect Codex to Ably MCP. List all active channels and their details, get message history from 'support-chat' channel, and more using natural language, with authentication handled for you.
Api Key
Ably is a real-time messaging platform for live chat and data sync in modern apps. It offers global scale and rock-solid reliability for seamless, instant experiences.
25 Tools
Introduction
Also integrate Ably 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 1700+ 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 Ably 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.
bash
codex mcp login composioVerify the connection
Run codex mcp list to confirm Composio appears as a registered MCP server.
bash
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
bash
[mcp_servers.composio]
url = "https://connect.composio.dev/mcp"
http_headers = { "x-consumer-api-key" = "ck_*******" }Try it
Ask Codex for a Ably task. The first time, Composio asks you to connect your Ably account.
For example, ask it to:
- "List all active channels and their details"
- "Get message history from 'support-chat' channel"
- "Show presence history for 'live-event' channel"
What is the Ably MCP server, and what's possible with it?
The Ably MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Ably account. It provides structured and secure access to your channels, messages, presence data, application statistics, and push notifications, so your agent can publish messages, inspect active channels, review channel history, monitor presence, and manage push notifications on your behalf.
- Channel messaging: Have your agent publish a message to one channel or send batches of messages across multiple channels.
- Channel activity and history: Let the agent list active channels, retrieve channel details, review message history, and inspect earlier versions of a message.
- Presence monitoring: Direct your agent to check who is currently present in one or more channels and review past presence activity.
- Push notification management: Instruct your agent to send individual or batch push notifications, manage channel subscriptions, and register, update, inspect, or unregister receiving devices.
- Application insights: Have your agent retrieve Ably service time and review application usage statistics.
Conclusion
You've successfully integrated Ably with Codex using Composio's MCP server. Now you can interact with Ably 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 Ably operations
- Managed authentication through Composio
- Access to 20,000+ tools across 1700+ apps for cross-app workflows
- CodeAct workbench for complex tool chaining
Next steps:
- Try asking Codex to perform various Ably operations
- Explore cross-app workflows by connecting more toolkits
- Build automation scripts that leverage Codex's AI capabilities
TOOLS
Supported Tools
Every Ably action and event your agent gets out of the box.
FRAMEWORKS
How to build Ably MCP Agent with another framework
Claude Code
Use Ably MCP with Claude Code
Claude Cowork
Use Ably MCP with Claude Cowork
OpenAI Agents SDK
Use Ably MCP with OpenAI Agents SDK
Claude Agent SDK
Use Ably MCP with Claude Agent SDK
OpenClaw
Use Ably MCP with OpenClaw
Hermes
Use Ably MCP with Hermes
Atomic Agent
Use Ably MCP with Atomic Agent
Google ADK
Use Ably MCP with Google ADK
LangChain
Use Ably MCP with LangChain
Vercel AI SDK
Use Ably MCP with Vercel AI SDK
Mastra AI
Use Ably MCP with Mastra AI
LlamaIndex
Use Ably MCP with LlamaIndex
CrewAI
Use Ably MCP with CrewAI
Pydantic AI
Use Ably MCP with Pydantic AI
AutoGen
Use Ably MCP with AutoGen
MORE TOOLKITS
Explore Other Toolkits
Supabase
Oauth2Api Key
Supabase is an open-source backend platform offering scalable Postgres databases, authentication, storage, and real-time APIs. It lets developers build modern apps without managing infrastructure.
Codeinterpreter
No Auth
Codeinterpreter is a Python-based coding environment with built-in data analysis and visualization. It lets you instantly run scripts, plot results, and prototype solutions inside supported platforms.
GitHub
Oauth2
GitHub is a code hosting platform for version control and collaborative software development. It streamlines project management, code review, and team workflows in one place.
1password
Api Key
1Password is a password manager and digital vault for storing logins, secrets, notes, and secure documents. It helps individuals and teams protect credentials, share access safely, and reduce password risk.
FAQ
Frequently asked questions
With a standalone Ably MCP server, the agents and LLMs can only access a fixed set of Ably tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Ably 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 Ably tools.
Yes, absolutely. You can configure which Ably 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 Ably data and credentials are handled as safely as possible.
Start with Ably.It takes 30 seconds.
Managed auth, hosted MCP servers, and every Ably 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