How to integrate Datadog 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 Datadog MCP integration, you can draft, triage, summarise emails, and much more, all without leaving the terminal or the app, whichever you prefer.

Also integrate Datadog 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 870+ 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 Datadog 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 connect.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 Datadog MCP server, and what's possible with it?

The Datadog MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Datadog account. It provides structured and secure access to your monitoring and observability platform, so your agent can perform actions like creating dashboards, managing monitors, scheduling downtimes, and tracking key events on your behalf.

  • Custom dashboard creation and management: Direct your agent to build new dashboards or retrieve detailed information about existing dashboards for unified infrastructure and application monitoring.
  • Monitor setup and deletion: Easily have your agent create new monitors to track critical metrics or remove outdated ones to keep your alerting system relevant.
  • Automated downtime scheduling: Let your agent schedule maintenance windows by creating downtimes that suppress alerts during planned outages or deployments.
  • Event tracking and logging: Ask your agent to create and log significant events—like deployments or configuration changes—so your team always stays informed.
  • Service level objectives and synthetic testing: Instruct your agent to define SLOs or set up synthetic API tests for continuous reliability and performance tracking.

Supported Tools & Triggers

Tools
Create DashboardCreate a dashboard in datadog.
Create downtimeCreates a new downtime in datadog to suppress alerts during maintenance windows or planned outages.
Create eventCreates a new event in datadog.
Create monitorCreates a new datadog monitor to track metrics, logs, or other data sources with configurable alerting thresholds and notifications.
Create SLOCreate a service level objective (slo) in datadog.
Create Synthetic API TestCreate a synthetic api test in datadog.
Create WebhookCreate a webhook in datadog.
Delete DashboardDelete a dashboard in datadog.
Delete monitorDeletes a datadog monitor permanently.
Get DashboardGet a specific dashboard from datadog.
Get monitorRetrieves detailed information about a specific datadog monitor, including its current state, configuration, and any active downtimes.
Get Service DependenciesGet service dependency mapping from datadog apm.
Get Synthetics LocationsTool to retrieve all available public and private locations for synthetic tests in datadog.
Get host tagsRetrieves all tags associated with a specific host in datadog.
Get Trace by IDGet detailed information about a specific trace by its id.
Get usage summaryRetrieves usage summary information from datadog including api calls, hosts, containers, and other billable usage metrics.
List All TagsList all tags from datadog.
List API KeysList api keys in datadog.
List APM ServicesList apm services from datadog.
List AWS IntegrationList aws integrations in datadog.
List dashboardsLists all datadog dashboards with basic information.
List eventsLists events from datadog within a specified time range.
List hostsLists all hosts in your datadog infrastructure with detailed information including metrics, tags, and status.
List IncidentsList incidents from datadog.
List Log IndexesTool to retrieve a list of all log indexes configured in datadog.
List monitorsGet all monitor details.
List RolesList roles from datadog organization.
List service checksLists service checks from datadog.
List SLOsList service level objectives (slos) from datadog.
List Synthetics TestsList synthetics tests from datadog.
List UsersList users from datadog organization.
List WebhooksList webhooks from datadog.
Mute MonitorMute a monitor in datadog.
Query metricsQueries datadog metrics and returns time series data.
Search logsSearches datadog logs with advanced filtering capabilities.
Search Spans AnalyticsSearch and analyze span data with aggregations in datadog.
Search TracesSearch for traces in datadog apm.
Submit metricsSubmits custom metrics to datadog.
Unmute MonitorUnmute a monitor in datadog.
Update DashboardUpdate a dashboard in datadog.
Update host tagsUpdates tags for a specific host in datadog.
Update monitorUpdates an existing datadog monitor with new configuration, thresholds, or notification settings.

Conclusion

You've successfully integrated Datadog with Codex using Composio's MCP server. Now you can interact with Datadog 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 Datadog operations
  • Managed authentication through Composio
  • Access to 20,000+ tools across 870+ apps for cross-app workflows
  • CodeAct workbench for complex tool chaining

Next steps:

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

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FAQ

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

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

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

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

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