Google Slides

Google Slides API integration with managed OAuth. Create presentations, add slides, insert content, and manage slide formatting. Use this skill when users want to interact with Google Slides. For other third party apps, use the api-gateway skill (https://clawhub.ai/byungkyu/api-gateway).

Security Scan

This is an instruction-only Google Slides integration that routes requests through Maton's gateway and only requires a single MATON_API_KEY; its requirements and instructions are consistent with its stated purpose.

Purpose & Capability

Name/description (Google Slides integration) matches the runtime instructions: calls to a Maton gateway and Maton connection controller to manage OAuth and proxy requests to slides.googleapis.com. The single required env var (MATON_API_KEY) is appropriate for a managed OAuth gateway.

Instruction Scope

SKILL.md instructs the agent to make network calls to gateway.maton.ai and ctrl.maton.ai (to create/list/delete OAuth connections) and to include MATON_API_KEY. This is expected for a managed-Google-Slides gateway, but it means user data and API calls are proxied through Maton rather than going directly to Google's APIs — users should be aware Maton will see requests and may hold OAuth tokens.

Install Mechanism

No install spec and no code files (instruction-only). No files are written to disk and no external packages are pulled, which is the lowest-risk install profile.

Credentials

Only a single environment variable (MATON_API_KEY) is required and is used consistently in the examples. No unrelated credentials, config paths, or sensitive system files are requested.

Persistence & Privilege

always is false and the skill is user-invocable with normal autonomous invocation allowed. The skill does not request persistent system-level privileges or modify other skills' configs.

Assessment

This skill appears internally consistent, but before installing consider: (1) Trust Maton: all API traffic and OAuth flows are proxied via maton.ai/ctrl.maton.ai/gateway.maton.ai so Maton will see request contents and hold OAuth tokens — review Maton's privacy/security and service reputation. (2) MATON_API_KEY is the only secret needed; don't reuse a high-privilege key and rotate/revoke it if compromised. (3) When you create a connection you will grant Google account scopes — review and only grant the minimum scopes required; revoke connections at https://ctrl.maton.ai when no longer needed. (4) The skill source/homepage is unknown (no project homepage listed); if you need stronger assurance, ask the publisher for provenance or use an officially published Google Slides integration instead. (5) Because the skill makes outbound network calls, ensure your environment policy allows contacting maton.ai and that you’re comfortable with that outbound access.

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

Quick Start

# 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

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:

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 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-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

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

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

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

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

{
  "title": "My Presentation"
}

Get Presentation

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

Pages (Slides)

Get Page

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

Get Page Thumbnail

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

With custom size:

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.

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

{
  "requests": [...]
}

Create Slide

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

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

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

Delete Text

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

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

Create Shape

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

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

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

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

Update Text Style

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

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

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

Code Examples

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

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: API Key Issues

1. Check that the MATON_API_KEY environment variable is set:

echo $MATON_API_KEY

2. 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-slides. For example:

• Correct: https://gateway.maton.ai/google-slides/v1/presentations
• Incorrect: https://gateway.maton.ai/slides/v1/presentations

Resources

• Slides API Overview
• Presentations
• Pages
• BatchUpdate Requests
• Page Layouts
• Maton Community
• Maton Support