How to integrate Google Ads MCP with Codex

Connect Codex to Google Ads MCP. Create a new customer list for holiday campaigns, get campaign details by campaign id, and more using natural language, with authentication handled for you.

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Google Ads is Google's online advertising platform for creating, managing, and optimizing digital campaigns. It helps businesses reach targeted customers and maximize return on ad spend.

78 Tools

Introduction

Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With the Google Ads MCP integration, Codex can create and update campaigns and ads, research keyword ideas, run GAQL reports, upload conversions, and manage customer lists, all without leaving the terminal or the app, whichever you prefer.

Also integrate Google Ads 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 Google Ads 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_*******" }

Try it

Ask Codex for a Google Ads task. The first time, Composio asks you to connect your Google Ads account.

For example, ask it to:

  • "Create a new customer list for holiday campaigns"
  • "Get campaign details by campaign ID"
  • "List all current customer lists in your account"

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

The Google Ads MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Google Ads account. It provides structured and secure access to your advertising data, so your agent can perform actions like creating customer lists, retrieving campaign details, and managing audience segments on your behalf.

  • Automated customer list creation: Instantly have your agent create new customer lists for targeted marketing campaigns, streamlining your segmentation workflows.
  • Campaign insights by ID or name: Let your agent fetch detailed information for any ad campaign using its ID or name, making reporting and optimization a breeze.
  • Customer list management: Ask your agent to retrieve and review all your existing customer lists, so you always know who you're targeting.
  • Add or remove contacts from lists: Seamlessly update audience membership by having your agent add or remove contacts from specified customer lists for more dynamic targeting.

Conclusion

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

Supported Tools

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

Add or remove to customer list

Adds or removes contacts from a Google Ads customer list (UserList/audience/remarketing list), not a Google Ads customer account.

Batch Mutate Google Ads Resources

Create, update, remove, or act on supported Google Ads resource types in one request.

Create Callout Asset

Create an immutable account asset containing a validated callout.

Create Customer Client

Create a new Google Ads client under an eligible direct parent manager.

Create customer list

Creates a Google Ads customer list (UserList/audience/remarketing list), not a Google Ads customer account.

Create data manager user list

Create a Data Manager user list, or validate without creating one.

Create Experiment

Create the experiment definition that begins an experiment setup workflow.

Create Experiment Arms

Create all arms for a Google Ads experiment in one required atomic batch.

Delete data manager user list

Delete a Data Manager user list, optionally validating only.

End Experiment

Immediately stop a running experiment without deleting its campaigns, or validate that operation.

Generate Keyword Forecast Metrics

Forecast clicks, conversions and costs for a hypothetical keyword campaign without creating resources.

Generate Keyword Historical Metrics

Retrieve historical search volumes, competition, and bid metrics for supplied keywords without creating or changing advertising resources.

Generate Keyword Ideas

Generate keyword ideas and planning metrics from exactly one seed form.

Get Campaign By Id

GetCampaignById Tool returns details of a campaign in Google Ads.

Get campaign by name

Queries Google Ads via SQL to retrieve a campaign by its exact name.

Get Conversion Action Tag Snippets

Retrieve provider-generated website or call conversion tag snippets after creating a conversion action.

Get conversion ingestion status

Retrieve one Data Manager ingestion status snapshot.

Get customer lists

GetCustomerLists Tool lists all customer lists (audience/remarketing lists) in Google Ads.

Get data manager user list

Get one Data Manager user list without modifying it.

Get Experiment

Get one Google Ads experiment by resource name or numeric ID.

Get Experiment Arm

Get one Google Ads experiment arm, including draft campaigns.

Get Required Google Ads Report

Run a prominent, bounded Google Ads report template for Customer, Campaign, Ad, Keyword, Search Term, Dynamic Search Ads Search Term, or Bidding Strategy.

Ingest ad events

Upload ad events for an allowlisted Data Partner to Google Analytics, not Ads.

Ingest audience members

Validate or asynchronously ingest Data Manager audience members.

Ingest conversion events

Validate or submit a bounded Google Ads conversion-event batch.

Ingest users

Ingest account-level identity linkage, not audience-list membership.

List Accessible Customers

List Google Ads customer resource names directly accessible to the authenticated OAuth user.

List data manager conversion actions

List conversion actions usable as Google Ads Data Manager destinations.

List data manager user lists

List one page of Data Manager user lists and their lifecycle configuration.

List Experiment Arms

List Google Ads experiment arms, including draft campaigns.

List Experiments

List Google Ads experiments, optionally filtered by status and type.

List Sub Accounts

List direct child/sub-accounts under a Google Ads manager (MCC) account.

Mutate Ad Group Ads

Create, update, or remove ads in Google Ads ad groups, including responsive search ads.

Mutate Ad Group Assets

Create, update, or remove links between assets and ad groups.

Mutate Ad Group Bid Modifiers

Create, update, or remove ad group bid modifiers, such as device bid adjustments or hotel-specific bid modifier criteria.

Mutate Ad Group Criteria

Create, update, or remove criteria attached to a Google Ads ad group in a single batch request.

Mutate Ad Groups

Create, update, or remove ad groups within Google Ads campaigns.

Mutate Ads

Update existing Google Ads ad creative fields.

Mutate Asset Group Assets

Create, update, or remove links between assets and Performance Max asset groups.

Mutate Asset Groups

Create, update, or remove Google Ads asset groups for Performance Max campaigns.

Mutate Assets

Create or update supported Google Ads assets such as sitelinks, structured snippets, text assets, lead forms, promotions, calls, price assets, and media assets.

Mutate Asset Sets

Create, update, or remove Google Ads asset sets, which group assets for feeds, locations, and other campaign uses.

Mutate Audiences

Create or update Google Ads audiences combining segment attributes.

Mutate Bidding Strategies

Create, update, or remove portfolio bidding strategies such as Target CPA, Target ROAS, Target Spend, Maximize Conversions, Maximize Conversion Value, and Target Impression Share.

Mutate Campaign Assets

Create, update, or remove links between assets and campaigns.

Mutate Campaign Budgets

Create, update, or remove Google Ads campaign budgets.

Mutate Campaign Criteria

Create, update, or remove campaign-level targeting criteria such as locations, languages, campaign-level negative keywords, devices, schedules, audiences, and IP exclusions.

Mutate Campaign Labels

Create or remove relationships between campaigns and labels.

Mutate Campaigns

Create, update, or remove Google Ads campaigns in batch.

Mutate Campaigns V2

Create, update, or remove Google Ads campaigns in batch.

Mutate Conversion Actions

Create, update, or remove Google Ads conversion actions for conversion tracking configuration.

Mutate Custom Audiences

Create, update, or remove Google Ads custom audiences used to reach users by interests, searches, visited URLs, place categories, or installed apps.

Mutate Customer

Update one Google Ads customer's mutable account settings using CustomerService.

Mutate Customer Assets

Create or remove customer-level asset associations.

Mutate Keyword Plan Ad Group Keywords

Create, update, or remove Google Ads Keyword Planner ad group keywords.

Mutate Keyword Plan Ad Groups

Create, update, or remove Google Ads Keyword Planner ad groups.

Mutate Keyword Plan Campaign Keywords

Create, update, or remove negative keywords in Keyword Plan campaigns.

Mutate Keyword Plan Campaigns

Create, update, or remove campaigns in an existing Keyword Plan.

Mutate Keyword Plans

Create, update, or remove saved Google Ads Keyword Planner plans.

Mutate Labels

Create, update, or remove Google Ads labels.

Mutate Portfolio Bidding Strategies

Create, edit, or remove typed Target CPA and Target ROAS portfolio strategies.

Mutate Shared Criteria

Create or remove criteria in a Google Ads shared set, such as negative keywords or excluded placements shared across campaigns.

Mutate Shared Sets

Create, update, or remove Google Ads shared sets used to group shared criteria, such as negative keyword lists, for reuse across campaigns.

Mutate User Lists

Create, update, or remove general Google Ads user-list resources used for audience targeting and remarketing.

Remove all audience members

Validate or asynchronously remove all members of Data Manager audiences.

Remove audience members

Remove specific users from Data Manager audience destinations.

Remove users

Remove users identified by hashed user data from Data Manager destinations.

Schedule Experiment

Schedule a Google Ads experiment and return its long-running operation.

Search GAQL

Run one page of a GAQL search and return its continuation token.

Search Google Ads Fields

Search the Google Ads v26 field metadata catalog with GAQL.

Search Stream GAQL

Execute a Google Ads Query Language (GAQL) query and aggregate every streamed response batch in order.

Update data manager user list

Update mutable Data Manager user-list metadata, optionally validating only.

Update Experiment

Update mutable fields on one Google Ads experiment.

Update Experiment Arms

Update one or more Google Ads experiment arms.

Upload Call Conversions

Upload offline call conversions to Google Ads, or validate them without uploading using validate_only.

Upload Click Conversions

Upload offline click conversions with optional enhanced-conversion identifiers, consent, and cart data.

Upload Conversion Adjustments

Upload retractions, restatements, or enhancements of existing conversions.

Upload User Data

Append or remove already-hashed user data in a Google Ads Customer Match list.

FAQ

Frequently asked questions

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

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

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