How to integrate Doppler MCP with Codex

Connect Codex to Doppler MCP. Get secrets for staging environment in doppler, add a new secret to marketing project, and more using natural language, with authentication handled for you.

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Doppler

Api Key

Doppler is a secrets management platform for organizing and syncing environment variables. It lets teams securely centralize, share, and update secrets across infrastructure.

62 Tools

Managed auth

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We manage OAuth, API keys, token refresh, and scopes — you just build.

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Introduction

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

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 Doppler 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.

(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.

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_*******" }

What is the Doppler MCP server, and what's possible with it?

The Doppler MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Doppler account. It provides structured and secure access to your projects, environments, configs, secrets, service tokens, users, and webhooks, so your agent can inspect projects, review configurations, retrieve and update secrets, create service tokens, and audit workspace resources on your behalf.

Project and environment discovery: Have your agent list Doppler projects, inspect project details, and review the environments available within each project.
Configuration review: Let the agent list configurations for a project and retrieve a specific config when you need to check how an environment is organized.
Secret retrieval and updates: Direct your agent to list secret names, retrieve a specific secret, download configured secrets, or update secrets within a chosen config.
Service token management: Instruct your agent to create a service token for a config or list its existing service tokens for review.
Workspace and webhook auditing: Have your agent identify the authenticated user, list workplace users, and review webhooks configured for a project.

Conclusion

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

TOOLS

Supported Tools

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

List Activity Logs

List workplace activity logs with pagination support.

Get Activity Log

Retrieve detailed information about a specific activity log entry.

Add Webhook

Tool to create a new webhook for a Doppler project.

Get Authenticated User Info

Tool to retrieve information about the authenticated user or token.

Get Config Log

Tool to retrieve a specific config log from Doppler.

List Config Logs

Tool to retrieve configuration change logs for a specific config in a project.

Rollback Config Log

Tool to rollback a config to a selected log version.

Clone Config

Tool to clone a branch config including all its secrets.

Create Config

Tool to create a branch config.

Delete Config

Tool to delete a config permanently.

Get Config

Tool to retrieve a specific Doppler config by project and config name.

List Doppler Configs

Tool to list configurations from a Doppler project.

Lock Config

Lock a Doppler config to prevent it from being renamed or deleted.

Unlock Config

Tool to unlock a config.

Update Config

Rename an existing Doppler config within a project.

Create Encrypted Share Link

Create a Doppler Share link for an end-to-end encrypted secret.

Create Plain Text Share Link

Tool to generate a Doppler Share link by sending a plain text secret.

Create Service Token

Tool to create a new service token for a Doppler config.

Delete Service Token

Tool to delete an existing service token from a Doppler config.

Delete Webhook

Tool to delete an existing webhook.

Disable Webhook

Tool to disable an existing Doppler webhook.

Revoke Dynamic Secret Lease

Revoke a dynamic secret lease immediately before its TTL expires.

Enable Webhook

Tool to enable a previously disabled webhook.

Create Environment

Create a new environment in a Doppler project.

Delete Environment

Tool to delete an environment.

Get Environment

Retrieves detailed metadata for a specific Doppler environment within a project.

List Environments

Tool to list all environments in a Doppler project.

Rename Environment

Rename an environment's display name within a Doppler project.

Get Webhook

Tool to retrieve an existing webhook by its slug.

Get Workplace User

Tool to retrieve a specific workplace user by their workplace_user id.

Remove Group Member

Remove a member from a Doppler group.

List Integrations

Tool to retrieve all existing integrations in Doppler.

List Invites

Tool to list open workplace invites.

List Change Requests

List existing change requests in the Doppler workplace.

List Project Members

Tool to list all members of a Doppler project including users, groups, service accounts, and invites.

List Service Tokens

Tool to list all service tokens for a specific Doppler config.

List Workplace Users

Tool to list all users in the Doppler workplace.

List Webhooks

Tool to list all webhooks configured for a Doppler project.

Remove Project Member

Tool to remove a member from a project.

Get Project Member

Retrieve a specific project member's details including their role and environment access permissions.

List Project Permissions

List all available project-level permissions in Doppler.

Get Project Role

Retrieve detailed information about a specific project role in Doppler, including its permissions, display name, identifier, creation timestamp, and whether it's a custom or built-in role.

List Project Roles

Tool to list all available project roles in Doppler.

Create Project

Tool to create a project.

Delete Project

Tool to delete a project permanently.

Get Project Details

Tool to retrieve details of a specific Doppler project by its identifier.

List Doppler Projects

Tool to list all Doppler projects in your workspace.

Delete Secret

Tool to delete a secret from a Doppler config.

Download Secrets

Tool to download secrets from a Doppler config in various formats.

Get Secret

Tool to retrieve a specific secret from a Doppler project config.

List Doppler Secrets

Tool to list all secrets for a specific Doppler config within a project.

List Secret Names

Tool to retrieve the list of secret names from a specific Doppler config.

Update Doppler Secrets

Tool to update secrets in a Doppler config.

Update Secret Note

Tool to update a note for a secret in Doppler.

Update Project

Tool to update an existing Doppler project's name or description.

Update Secret Note

DEPRECATED: Use DopplerSecretsUpdateNote instead.

Update Webhook

Tool to update an existing webhook configuration in Doppler.

Update Workplace Settings

Tool to update workplace settings in Doppler.

Get Workplace Information

Tool to retrieve workplace information from Doppler.

Get Workplace Role

Tool to retrieve workplace role information from Doppler.

List Workplace Roles

Tool to list all workplace roles in your Doppler workspace.

List Workplace Permissions

Retrieves all available workplace permissions in Doppler.

FRAMEWORKS

How to build Doppler MCP Agent with another framework

Claude Code

Use Doppler MCP with Claude Code

Cursor

Use Doppler MCP with Cursor

ChatGPT

Use Doppler MCP with ChatGPT

Claude Cowork

Use Doppler MCP with Claude Cowork

Antigravity

Use Doppler MCP with Antigravity

OpenAI Agents SDK

Use Doppler MCP with OpenAI Agents SDK

Claude Agent SDK

Use Doppler MCP with Claude Agent SDK

Grok Build

Use Doppler MCP with Grok Build

VS Code

Use Doppler MCP with VS Code

OpenCode

Use Doppler MCP with OpenCode

OpenClaw

Use Doppler MCP with OpenClaw

Hermes

Use Doppler MCP with Hermes

Atomic Agent

Use Doppler MCP with Atomic Agent

Pi

Use Doppler MCP with Pi

DeepSeek Harness

Use Doppler MCP with DeepSeek Harness

Google ADK

Use Doppler MCP with Google ADK

LangChain

Use Doppler MCP with LangChain

Vercel AI SDK

Use Doppler MCP with Vercel AI SDK

Mastra AI

Use Doppler MCP with Mastra AI

LlamaIndex

Use Doppler MCP with LlamaIndex

CrewAI

Use Doppler MCP with CrewAI

Pydantic AI

Use Doppler MCP with Pydantic AI

AutoGen

Use Doppler MCP with AutoGen

MORE TOOLKITS

Explore Other Toolkits

Toolkit marketplace

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

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

Start with Doppler.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Doppler tool your agent needs.Free to start.

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How to integrate Doppler MCP with Codex

Connect Doppler without auth hassles

Introduction

Also integrate Doppler with

Why use Composio?

How to install Doppler MCP in Codex

Run the setup command

(Optional) Authenticate with OAuth

Verify the connection

Codex App

What is the Doppler MCP server, and what's possible with it?

Conclusion

Supported Tools

How to build Doppler MCP Agent with another framework

Claude Code

Cursor

ChatGPT

Claude Cowork

Antigravity

OpenAI Agents SDK

Claude Agent SDK

Grok Build

VS Code

OpenCode

OpenClaw

Hermes

Atomic Agent

Pi

DeepSeek Harness

Google ADK

LangChain

Vercel AI SDK

Mastra AI

LlamaIndex

CrewAI

Pydantic AI

AutoGen

Explore Other Toolkits

Supabase

Codeinterpreter

GitHub

1password

Frequently asked questions

What are the differences in Tool Router MCP and Doppler MCP?+

Can I use Tool Router MCP with Codex?+

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

How safe is my data with Composio Tool Router?+

Start with Doppler.It takes 30 seconds.