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// Skill profile

Gumroad

Name: Gumroad
Author: byungkyu

name: gumroad

by byungkyu · published 2026-03-22

邮件处理社交媒体加密货币

Total installs

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★ 0

Last updated

2026-03

// Install command

$ claw add gh:byungkyu/byungkyu-gumroad

View on GitHub

// Full documentation

---

name: gumroad

description: |

Gumroad API integration with managed OAuth. Access products, sales, subscribers, licenses, and webhooks for your digital storefront.

Use this skill when users want to manage their Gumroad products, verify licenses, view sales data, or set up webhook notifications.

For other third party apps, use the api-gateway skill (https://clawhub.ai/byungkyu/api-gateway).

Requires network access and valid Maton API key.

metadata:

author: maton

version: "1.0"

clawdbot:

emoji: 🧠

requires:

env:

- MATON_API_KEY

---

# Gumroad

Access the Gumroad API with managed OAuth authentication. Manage products, view sales, verify licenses, and set up webhooks for your digital storefront.

Quick Start

# Get current user info
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/gumroad/v2/user')
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/gumroad/v2/{resource}

The gateway proxies requests to `api.gumroad.com/v2` 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](https://maton.ai)

2. Go to [maton.ai/settings](https://maton.ai/settings)

3. Copy your API key

Connection Management

Manage your Gumroad 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=gumroad&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': 'gumroad'}).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": "e1a4444f-2bb8-4e09-9265-3afe71b74b1f",
    "status": "ACTIVE",
    "creation_time": "2026-02-08T06:22:48.654579Z",
    "last_updated_time": "2026-02-08T06:23:07.420381Z",
    "url": "https://connect.maton.ai/?session_token=...",
    "app": "gumroad",
    "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 Gumroad connections, specify which one to use with the `Maton-Connection` header:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/gumroad/v2/products')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Maton-Connection', 'e1a4444f-2bb8-4e09-9265-3afe71b74b1f')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

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

API Reference

User Info

#### Get Current User

GET /gumroad/v2/user

**Response:**

{
  "success": true,
  "user": {
    "name": "Chris",
    "currency_type": "usd",
    "bio": null,
    "twitter_handle": null,
    "id": "1690942847664",
    "user_id": "QmTtTnViFSoocHAexgLuJw==",
    "url": "https://chriswave1246.gumroad.com",
    "profile_url": "https://public-files.gumroad.com/...",
    "email": "chris@example.com",
    "display_name": "Chris"
  }
}

Product Operations

#### List Products

GET /gumroad/v2/products

**Response:**

{
  "success": true,
  "products": [
    {
      "id": "ABC123",
      "name": "My Product",
      "price": 500,
      "currency": "usd",
      "short_url": "https://gumroad.com/l/abc",
      "sales_count": 10,
      "sales_usd_cents": 5000
    }
  ]
}

#### Get Product

GET /gumroad/v2/products/{product_id}

#### Update Product

PUT /gumroad/v2/products/{product_id}
Content-Type: application/x-www-form-urlencoded

name=Updated%20Name&price=1000

#### Enable/Disable Product

PUT /gumroad/v2/products/{product_id}/disable
Content-Type: application/x-www-form-urlencoded

disabled=true

#### Delete Product

DELETE /gumroad/v2/products/{product_id}

**Note:** Creating new products via API is not supported. Products must be created through the Gumroad website.

Offer Code Operations

#### List Offer Codes

GET /gumroad/v2/products/{product_id}/offer_codes

#### Get Offer Code

GET /gumroad/v2/products/{product_id}/offer_codes/{offer_code_id}

#### Create Offer Code

POST /gumroad/v2/products/{product_id}/offer_codes
Content-Type: application/x-www-form-urlencoded

name=SUMMER20&amount_off=20

Parameters:

`name` - The code customers enter (required)

`amount_off` - Cents or percentage off (required)

`offer_type` - "cents" or "percent" (default: "cents")

`max_purchase_count` - Maximum uses (optional)

#### Update Offer Code

PUT /gumroad/v2/products/{product_id}/offer_codes/{offer_code_id}
Content-Type: application/x-www-form-urlencoded

max_purchase_count=100

#### Delete Offer Code

DELETE /gumroad/v2/products/{product_id}/offer_codes/{offer_code_id}

Sales Operations

#### List Sales

GET /gumroad/v2/sales

Query parameters:

`after` - Only sales after this date (YYYY-MM-DD)

`before` - Only sales before this date (YYYY-MM-DD)

`page` - Page number for pagination

**Example with filters:**

GET /gumroad/v2/sales?after=2026-01-01&before=2026-12-31

**Response:**

{
  "success": true,
  "sales": [
    {
      "id": "sale_abc123",
      "email": "customer@example.com",
      "seller_id": "seller123",
      "product_id": "prod123",
      "product_name": "My Product",
      "price": 500,
      "currency_symbol": "$",
      "created_at": "2026-01-15T10:30:00Z"
    }
  ]
}

#### Get Sale

GET /gumroad/v2/sales/{sale_id}

Subscriber Operations

#### List Subscribers

GET /gumroad/v2/products/{product_id}/subscribers

#### Get Subscriber

GET /gumroad/v2/subscribers/{subscriber_id}

**Response:**

{
  "success": true,
  "subscriber": {
    "id": "sub123",
    "product_id": "prod123",
    "product_name": "Monthly Subscription",
    "user_id": "user123",
    "user_email": "subscriber@example.com",
    "status": "alive",
    "created_at": "2026-01-01T00:00:00Z"
  }
}

License Operations

#### Verify License

POST /gumroad/v2/licenses/verify
Content-Type: application/x-www-form-urlencoded

product_id={product_id}&license_key={license_key}

Parameters:

`product_id` - The product ID (required)

`license_key` - The license key to verify (required)

`increment_uses_count` - Increment the use count (default: true)

**Response (success):**

{
  "success": true,
  "uses": 1,
  "purchase": {
    "seller_id": "seller123",
    "product_id": "prod123",
    "product_name": "My Product",
    "permalink": "abc",
    "email": "customer@example.com",
    "license_key": "ABC-123-DEF",
    "quantity": 1,
    "created_at": "2026-01-15T00:00:00Z"
  }
}

**Response (failure):**

{
  "success": false,
  "message": "That license does not exist for the provided product."
}

#### Enable License

PUT /gumroad/v2/licenses/enable
Content-Type: application/x-www-form-urlencoded

product_id={product_id}&license_key={license_key}

#### Disable License

PUT /gumroad/v2/licenses/disable
Content-Type: application/x-www-form-urlencoded

product_id={product_id}&license_key={license_key}

#### Decrement License Uses

PUT /gumroad/v2/licenses/decrement_uses_count
Content-Type: application/x-www-form-urlencoded

product_id={product_id}&license_key={license_key}

Resource Subscriptions (Webhooks)

Subscribe to notifications for sales and other events.

#### List Resource Subscriptions

GET /gumroad/v2/resource_subscriptions?resource_name=sale

Parameters:

`resource_name` - Required. One of: `sale`, `refund`, `dispute`, `dispute_won`, `cancellation`, `subscription_updated`, `subscription_ended`, `subscription_restarted`

**Response:**

{
  "success": true,
  "resource_subscriptions": [
    {
      "id": "wX43hzi-s7W4JfYFkxyeiQ==",
      "resource_name": "sale",
      "post_url": "https://example.com/webhook"
    }
  ]
}

#### Delete Resource Subscription

DELETE /gumroad/v2/resource_subscriptions/{resource_subscription_id}

**Response:**

{
  "success": true,
  "message": "The resource_subscription was deleted successfully."
}

Variant Categories

#### List Variant Categories

GET /gumroad/v2/products/{product_id}/variant_categories

#### Get Variant Category

GET /gumroad/v2/products/{product_id}/variant_categories/{variant_category_id}

#### Create Variant Category

POST /gumroad/v2/products/{product_id}/variant_categories
Content-Type: application/x-www-form-urlencoded

title=Size

#### Delete Variant Category

DELETE /gumroad/v2/products/{product_id}/variant_categories/{variant_category_id}

Variants

#### List Variants

GET /gumroad/v2/products/{product_id}/variant_categories/{variant_category_id}/variants

#### Create Variant

POST /gumroad/v2/products/{product_id}/variant_categories/{variant_category_id}/variants
Content-Type: application/x-www-form-urlencoded

name=Large&price_difference=200

#### Update Variant

PUT /gumroad/v2/products/{product_id}/variant_categories/{variant_category_id}/variants/{variant_id}
Content-Type: application/x-www-form-urlencoded

name=Extra%20Large

#### Delete Variant

DELETE /gumroad/v2/products/{product_id}/variant_categories/{variant_category_id}/variants/{variant_id}

Custom Fields

#### List Custom Fields

GET /gumroad/v2/products/{product_id}/custom_fields

#### Create Custom Field

POST /gumroad/v2/products/{product_id}/custom_fields
Content-Type: application/x-www-form-urlencoded

name=Company%20Name&required=true

#### Update Custom Field

PUT /gumroad/v2/products/{product_id}/custom_fields/{name}
Content-Type: application/x-www-form-urlencoded

required=false

#### Delete Custom Field

DELETE /gumroad/v2/products/{product_id}/custom_fields/{name}

Pagination

Gumroad uses page-based pagination for endpoints that return lists:

GET /gumroad/v2/sales?page=1
GET /gumroad/v2/sales?page=2

Continue incrementing the page number until you receive an empty list.

Code Examples

JavaScript

const response = await fetch(
  'https://gateway.maton.ai/gumroad/v2/products',
  {
    headers: {
      'Authorization': `Bearer ${process.env.MATON_API_KEY}`
    }
  }
);
const data = await response.json();

Python

import os
import requests

response = requests.get(
    'https://gateway.maton.ai/gumroad/v2/products',
    headers={'Authorization': f'Bearer {os.environ["MATON_API_KEY"]}'}
)
data = response.json()

Python (Verify License)

import os
import requests

response = requests.post(
    'https://gateway.maton.ai/gumroad/v2/licenses/verify',
    headers={'Authorization': f'Bearer {os.environ["MATON_API_KEY"]}'},
    data={
        'product_id': 'your_product_id',
        'license_key': 'CUSTOMER-LICENSE-KEY'
    }
)
result = response.json()
if result['success']:
    print(f"License valid! Uses: {result['uses']}")
else:
    print(f"Invalid: {result['message']}")

Notes

All responses include a `success` boolean field

Product creation is not available via API - products must be created through the Gumroad website

POST/PUT requests use `application/x-www-form-urlencoded` content type (not JSON)

Prices are in cents (e.g., 500 = $5.00)

License keys are case-insensitive

Resource subscription webhooks send POST requests to your specified URL

IMPORTANT: When piping curl output to `jq` or other commands, environment variables like `$MATON_API_KEY` may not expand correctly in some shell environments

Error Handling

| Status | Meaning |

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

| 400 | Missing Gumroad connection or bad request |

| 401 | Invalid or missing Maton API key |

| 404 | Resource not found (returned with `success: false`) |

| 429 | Rate limited |

| 4xx/5xx | Passthrough error from Gumroad API |

Gumroad errors typically return HTTP 404 with a JSON body:

{
  "success": false,
  "message": "Error description"
}

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 `gumroad`. For example:

Correct: `https://gateway.maton.ai/gumroad/v2/user`

Incorrect: `https://gateway.maton.ai/v2/user`

Resources

[Gumroad API Overview](https://gumroad.com/api)

[Create API Application](https://help.gumroad.com/article/280-create-application-api)

[License Keys Help](https://help.gumroad.com/article/76-license-keys)

[Maton Community](https://discord.com/invite/dBfFAcefs2)

[Maton Support](mailto:support@maton.ai)

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