Google Slides

Access the Google Slides API with managed OAuth authentication. Create and manage presentations, add slides, insert text and images, and control formatting.

Quick Start

bash

# Create a new presentation
python <<'EOF'
import urllib.request, os, json
data = json.dumps({'title': 'My Presentation'}).encode()
req = urllib.request.Request('https://gateway.maton.ai/google-slides/v1/presentations', 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

Base URL

code

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

Replace {native-api-path} with the actual Google Slides API endpoint path. The gateway proxies requests to slides.googleapis.com and automatically injects your OAuth token.

Authentication

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

code

Authorization: Bearer $MATON_API_KEY

Environment Variable: Set your API key as MATON_API_KEY:

bash

export MATON_API_KEY="YOUR_API_KEY"

Getting Your API Key

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

Connection Management

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

List Connections

bash

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections?app=google-slides&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

bash

python <<'EOF'
import urllib.request, os, json
data = json.dumps({'app': 'google-slides'}).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

bash

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:

json

{
  "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-slides",
    "metadata": {}
  }
}

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

Delete Connection

bash

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 Slides connections, specify which one to use with the Maton-Connection header:

bash

python <<'EOF'
import urllib.request, os, json
data = json.dumps({'title': 'My Presentation'}).encode()
req = urllib.request.Request('https://gateway.maton.ai/google-slides/v1/presentations', 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

Presentations

Create Presentation

bash

POST /google-slides/v1/presentations
Content-Type: application/json

{
  "title": "My Presentation"
}

Get Presentation

bash

GET /google-slides/v1/presentations/{presentationId}

Pages (Slides)

Get Page

bash

GET /google-slides/v1/presentations/{presentationId}/pages/{pageId}

Get Page Thumbnail

bash

GET /google-slides/v1/presentations/{presentationId}/pages/{pageId}/thumbnail

With custom size:

bash

GET /google-slides/v1/presentations/{presentationId}/pages/{pageId}/thumbnail?thumbnailProperties.mimeType=PNG&thumbnailProperties.thumbnailSize=LARGE

Batch Update

The batchUpdate endpoint is used for most modifications. It accepts an array of requests that are applied atomically.

bash

POST /google-slides/v1/presentations/{presentationId}:batchUpdate
Content-Type: application/json

{
  "requests": [...]
}

Create Slide

bash

POST /google-slides/v1/presentations/{presentationId}:batchUpdate
Content-Type: application/json

{
  "requests": [
    {
      "createSlide": {
        "objectId": "slide_001",
        "slideLayoutReference": {
          "predefinedLayout": "TITLE_AND_BODY"
        }
      }
    }
  ]
}

Available predefined layouts:

•BLANK
•TITLE
•TITLE_AND_BODY
•TITLE_AND_TWO_COLUMNS
•TITLE_ONLY
•SECTION_HEADER
•ONE_COLUMN_TEXT
•MAIN_POINT
•BIG_NUMBER

Insert Text

bash

POST /google-slides/v1/presentations/{presentationId}:batchUpdate
Content-Type: application/json

{
  "requests": [
    {
      "insertText": {
        "objectId": "{shapeId}",
        "text": "Hello, World!",
        "insertionIndex": 0
      }
    }
  ]
}

Delete Text

bash

POST /google-slides/v1/presentations/{presentationId}:batchUpdate
Content-Type: application/json

{
  "requests": [
    {
      "deleteText": {
        "objectId": "{shapeId}",
        "textRange": {
          "type": "ALL"
        }
      }
    }
  ]
}

Create Shape

bash

POST /google-slides/v1/presentations/{presentationId}:batchUpdate
Content-Type: application/json

{
  "requests": [
    {
      "createShape": {
        "objectId": "shape_001",
        "shapeType": "TEXT_BOX",
        "elementProperties": {
          "pageObjectId": "{slideId}",
          "size": {
            "width": {"magnitude": 300, "unit": "PT"},
            "height": {"magnitude": 100, "unit": "PT"}
          },
          "transform": {
            "scaleX": 1,
            "scaleY": 1,
            "translateX": 100,
            "translateY": 100,
            "unit": "PT"
          }
        }
      }
    }
  ]
}

Create Image

bash

POST /google-slides/v1/presentations/{presentationId}:batchUpdate
Content-Type: application/json

{
  "requests": [
    {
      "createImage": {
        "objectId": "image_001",
        "url": "https://example.com/image.png",
        "elementProperties": {
          "pageObjectId": "{slideId}",
          "size": {
            "width": {"magnitude": 200, "unit": "PT"},
            "height": {"magnitude": 200, "unit": "PT"}
          },
          "transform": {
            "scaleX": 1,
            "scaleY": 1,
            "translateX": 200,
            "translateY": 200,
            "unit": "PT"
          }
        }
      }
    }
  ]
}

Delete Object

bash

POST /google-slides/v1/presentations/{presentationId}:batchUpdate
Content-Type: application/json

{
  "requests": [
    {
      "deleteObject": {
        "objectId": "{objectId}"
      }
    }
  ]
}

Update Text Style

bash

POST /google-slides/v1/presentations/{presentationId}:batchUpdate
Content-Type: application/json

{
  "requests": [
    {
      "updateTextStyle": {
        "objectId": "{shapeId}",
        "textRange": {
          "type": "ALL"
        },
        "style": {
          "bold": true,
          "fontSize": {"magnitude": 24, "unit": "PT"},
          "foregroundColor": {
            "opaqueColor": {
              "rgbColor": {"red": 0.2, "green": 0.4, "blue": 0.8}
            }
          }
        },
        "fields": "bold,fontSize,foregroundColor"
      }
    }
  ]
}

Replace All Text

bash

POST /google-slides/v1/presentations/{presentationId}:batchUpdate
Content-Type: application/json

{
  "requests": [
    {
      "replaceAllText": {
        "containsText": {
          "text": "{{placeholder}}",
          "matchCase": true
        },
        "replaceText": "Actual Value"
      }
    }
  ]
}

Code Examples

JavaScript

javascript

// Create a presentation
const response = await fetch(
  'https://gateway.maton.ai/google-slides/v1/presentations',
  {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
      'Authorization': `Bearer ${process.env.MATON_API_KEY}`
    },
    body: JSON.stringify({ title: 'My Presentation' })
  }
);

const presentation = await response.json();
const presentationId = presentation.presentationId;

// Add a slide
await fetch(
  `https://gateway.maton.ai/google-slides/v1/presentations/${presentationId}:batchUpdate`,
  {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
      'Authorization': `Bearer ${process.env.MATON_API_KEY}`
    },
    body: JSON.stringify({
      requests: [
        {
          createSlide: {
            slideLayoutReference: { predefinedLayout: 'TITLE_AND_BODY' }
          }
        }
      ]
    })
  }
);

Python

python

import os
import requests

headers = {
    'Content-Type': 'application/json',
    'Authorization': f'Bearer {os.environ["MATON_API_KEY"]}'
}

# Create a presentation
response = requests.post(
    'https://gateway.maton.ai/google-slides/v1/presentations',
    headers=headers,
    json={'title': 'My Presentation'}
)
presentation = response.json()
presentation_id = presentation['presentationId']

# Add a slide
requests.post(
    f'https://gateway.maton.ai/google-slides/v1/presentations/{presentation_id}:batchUpdate',
    headers=headers,
    json={
        'requests': [
            {
                'createSlide': {
                    'slideLayoutReference': {'predefinedLayout': 'TITLE_AND_BODY'}
                }
            }
        ]
    }
)

Notes

•Object IDs must be unique within a presentation
•Use batchUpdate for all modifications (adding slides, text, shapes, etc.)
•Multiple requests in a batchUpdate are applied atomically
•Sizes and positions use PT (points) as the unit (72 points = 1 inch)
•Use replaceAllText for template-based presentation generation
•IMPORTANT: When using curl commands, use curl -g when URLs contain brackets 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 Slides connection
401	Invalid or missing Maton API key
404	Presentation not found
429	Rate limited (10 req/sec per account)
4xx/5xx	Passthrough error from Google Slides API

Troubleshooting: Invalid API Key

When you receive a "Invalid API key" error, ALWAYS follow these steps before concluding there is an issue:

•Check that the MATON_API_KEY environment variable is set:

bash

echo $MATON_API_KEY

•Verify the API key is valid by listing connections:

bash

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

Google Slides

Quick Start

Base URL

Authentication

Getting Your API Key

Connection Management

List Connections

Create Connection

Get Connection

Delete Connection

Specifying Connection

API Reference

Presentations

Create Presentation

Get Presentation

Pages (Slides)

Get Page

Get Page Thumbnail

Batch Update

Create Slide

Insert Text

Delete Text

Create Shape

Create Image

Delete Object

Update Text Style

Replace All Text

Code Examples

JavaScript

Python

Notes

Error Handling

Troubleshooting: Invalid API Key

Resources