Google Ads

Access the Google Ads API with managed OAuth authentication. Query campaigns, ad groups, keywords, and performance metrics using GAQL.

Quick Start

# List accessible customers
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/google-ads/v23/customers:listAccessibleCustomers')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Base URL

https://gateway.maton.ai/google-ads/{native-api-path}

Replace {native-api-path} with the actual Google Ads API endpoint path. The gateway proxies requests to googleads.googleapis.com and automatically injects OAuth and developer tokens.

Authentication

All requests require the Maton API key in the Authorization header:

Authorization: Bearer $MATON_API_KEY

Environment Variable: Set your API key as MATON_API_KEY:

export MATON_API_KEY="YOUR_API_KEY"

Getting Your API Key

1. Sign in or create an account at maton.ai
2. Go to maton.ai/settings
3. Copy your API key

Connection Management

Manage your Google Ads OAuth connections at https://ctrl.maton.ai.

List Connections

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections?app=google-ads&status=ACTIVE')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Create Connection

python <<'EOF'
import urllib.request, os, json
data = json.dumps({'app': 'google-ads'}).encode()
req = urllib.request.Request('https://ctrl.maton.ai/connections', data=data, method='POST')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Content-Type', 'application/json')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Get Connection

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections/{connection_id}')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Response:

{
  "connection": {
    "connection_id": "21fd90f9-5935-43cd-b6c8-bde9d915ca80",
    "status": "ACTIVE",
    "creation_time": "2025-12-08T07:20:53.488460Z",
    "last_updated_time": "2026-01-31T20:03:32.593153Z",
    "url": "https://connect.maton.ai/?session_token=...",
    "app": "google-ads",
    "metadata": {}
  }
}

Open the returned url in a browser to complete OAuth authorization.

Delete Connection

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections/{connection_id}', method='DELETE')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Specifying Connection

If you have multiple Google Ads connections, specify which one to use with the Maton-Connection header:

python <<'EOF'
import urllib.request, os, json
data = json.dumps({'query': 'SELECT campaign.id, campaign.name FROM campaign'}).encode()
req = urllib.request.Request('https://gateway.maton.ai/google-ads/v23/customers/1234567890/googleAds:search', data=data, method='POST')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Content-Type', 'application/json')
req.add_header('Maton-Connection', '21fd90f9-5935-43cd-b6c8-bde9d915ca80')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

If omitted, the gateway uses the default (oldest) active connection.

API Reference

List Accessible Customers

GET /google-ads/v23/customers:listAccessibleCustomers

Search (GAQL Query)

POST /google-ads/v23/customers/{customerId}/googleAds:search
Content-Type: application/json

{
  "query": "SELECT campaign.id, campaign.name, campaign.status FROM campaign ORDER BY campaign.id"
}

Search Stream (for large results)

POST /google-ads/v23/customers/{customerId}/googleAds:searchStream
Content-Type: application/json

{
  "query": "SELECT campaign.id, campaign.name FROM campaign"
}

Common GAQL Queries

List Campaigns

SELECT campaign.id, campaign.name, campaign.status, campaign.advertising_channel_type
FROM campaign
WHERE campaign.status != 'REMOVED'
ORDER BY campaign.name

Campaign Performance

SELECT campaign.id, campaign.name, metrics.impressions, metrics.clicks, metrics.cost_micros, metrics.conversions
FROM campaign
WHERE segments.date DURING LAST_30_DAYS
ORDER BY metrics.impressions DESC

List Ad Groups

SELECT ad_group.id, ad_group.name, ad_group.status, campaign.id, campaign.name
FROM ad_group
WHERE ad_group.status != 'REMOVED'

List Keywords

SELECT ad_group_criterion.keyword.text, ad_group_criterion.keyword.match_type, metrics.impressions, metrics.clicks
FROM keyword_view
WHERE segments.date DURING LAST_30_DAYS

Code Examples

JavaScript

// Get customer IDs
const customers = await fetch(
  'https://gateway.maton.ai/google-ads/v23/customers:listAccessibleCustomers',
  { headers: { 'Authorization': `Bearer ${process.env.MATON_API_KEY}` } }
).then(r => r.json());

// Query campaigns
const campaigns = await fetch(
  `https://gateway.maton.ai/google-ads/v23/customers/${customerId}/googleAds:search`,
  {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
      'Authorization': `Bearer ${process.env.MATON_API_KEY}`
    },
    body: JSON.stringify({
      query: 'SELECT campaign.id, campaign.name FROM campaign'
    })
  }
).then(r => r.json());

Python

import os
import requests

headers = {'Authorization': f'Bearer {os.environ["MATON_API_KEY"]}'}

# Query campaigns
response = requests.post(
    f'https://gateway.maton.ai/google-ads/v23/customers/{customer_id}/googleAds:search',
    headers=headers,
    json={'query': 'SELECT campaign.id, campaign.name FROM campaign'}
)

Notes

• Use listAccessibleCustomers first to get customer IDs
• Customer IDs are 10-digit numbers (remove dashes)
• Monetary values are in micros (divide by 1,000,000)
• Date ranges: LAST_7_DAYS, LAST_30_DAYS, THIS_MONTH
• Status values: ENABLED, PAUSED, REMOVED
• IMPORTANT: When using curl commands, use curl -g when URLs contain brackets (fields[], sort[], records[]) to disable glob parsing
• IMPORTANT: When piping curl output to jq or other commands, environment variables like $MATON_API_KEY may not expand correctly in some shell environments. You may get "Invalid API key" errors when piping.

Error Handling

| Status | Meaning |

|--------|---------|

| 400 | Missing Google Ads connection |

| 401 | Invalid or missing Maton API key |

| 429 | Rate limited (10 req/sec per account) |

| 4xx/5xx | Passthrough error from Google Ads API |

Troubleshooting: API Key Issues

1. Check that the MATON_API_KEY environment variable is set:

echo $MATON_API_KEY

1. Verify the API key is valid by listing connections:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Troubleshooting: Invalid App Name

1. Ensure your URL path starts with google-ads. For example:

• Correct: https://gateway.maton.ai/google-ads/v23/customers:listAccessibleCustomers
• Incorrect: https://gateway.maton.ai/v23/customers:listAccessibleCustomers

Resources

• Google Ads API Overview
• GAQL Reference
• Metrics Reference
• Search
• Maton Community
• Maton Support