CREEM API Reference

Complete API reference with all endpoints, request/response schemas, and field descriptions.

Base Configuration

Production: https://api.creem.io
Test Mode:  https://test-api.creem.io
Version:    v1

Authentication

All requests require the x-api-key header:

x-api-key: creem_your_api_key_here

API keys are found in the dashboard under Settings > API Keys. Test and production use different keys.

Checkouts API

Create Checkout Session

Creates a new checkout session and returns a URL to redirect the customer.

POST /v1/checkouts

Request Body:

Field	Type	Required	Description
`product_id`	string	Yes	Product ID to purchase (e.g., `prod_abc123`)
`request_id`	string	No	Your tracking ID for this checkout
`units`	number	No	Number of units/seats (default: 1)
`discount_code`	string	No	Pre-fill discount code
`customer`	object	No	Pre-fill customer data
`customer.email`	string	No	Customer’s email address
`customer.id`	string	No	Existing customer ID
`success_url`	string	No	Redirect URL after payment
`metadata`	object	No	Key-value pairs for tracking
`custom_fields`	array	No	Additional fields to collect (max 3)

Custom Fields Schema:

{
  "custom_fields": [
    {
      "type": "text",
      "key": "companyName",
      "label": "Company Name",
      "optional": false,
      "text": {
        "min_length": 1,
        "max_length": 200
      }
    },
    {
      "type": "checkbox",
      "key": "termsAccepted",
      "label": "Accept Terms",
      "optional": false,
      "checkbox": {
        "label": "I agree to the [terms](https://example.com/terms)"
      }
    }
  ]
}

Response: CheckoutEntity

{
  "id": "ch_1234567890",
  "mode": "test",
  "object": "checkout",
  "status": "pending",
  "checkout_url": "https://checkout.creem.io/ch_1234567890",
  "product": "prod_abc123",
  "units": 1,
  "request_id": "order_123",
  "success_url": "https://yoursite.com/success",
  "metadata": { "userId": "user_123" }
}

Retrieve Checkout

GET /v1/checkouts?checkout_id={id}

Query Parameters:

Field	Type	Required	Description
`checkout_id`	string	Yes	Checkout session ID

Response: Full CheckoutEntity with expanded product, customer, order, subscription, and feature objects if checkout is completed.

Products API

Create Product

POST /v1/products

Request Body:

Field	Type	Required	Description
`name`	string	Yes	Product name
`description`	string	No	Product description
`image_url`	string	No	Product image URL (PNG/JPG)
`price`	integer	Yes	Price in cents (min: 100)
`currency`	string	Yes	ISO currency code (USD, EUR, etc.)
`billing_type`	string	Yes	`recurring` or `onetime`
`billing_period`	string	If recurring	`every-month`, `every-year`, etc.
`tax_mode`	string	No	`inclusive` or `exclusive`
`tax_category`	string	No	`saas`, `digital-goods-service`, `ebooks`
`default_success_url`	string	No	Default redirect after payment
`custom_fields`	array	No	Fields to collect at checkout
`abandoned_cart_recovery_enabled`	boolean	No	Enable cart recovery emails

Response: ProductEntity

{
  "id": "prod_abc123",
  "mode": "test",
  "object": "product",
  "name": "Pro Plan",
  "description": "Full access to all features",
  "image_url": "https://example.com/image.jpg",
  "price": 2900,
  "currency": "USD",
  "billing_type": "recurring",
  "billing_period": "every-month",
  "status": "active",
  "tax_mode": "exclusive",
  "tax_category": "saas",
  "product_url": "https://creem.io/product/prod_abc123",
  "default_success_url": "https://example.com/success",
  "features": [],
  "created_at": "2024-01-01T00:00:00Z",
  "updated_at": "2024-01-01T00:00:00Z"
}

Retrieve Product

GET /v1/products?product_id={id}

List Products

GET /v1/products/search?page_number={n}&page_size={size}

Query Parameters:

Field	Type	Required	Description
`page_number`	number	No	Page number (default: 1)
`page_size`	number	No	Items per page

Response: ProductListEntity

{
  "items": [ /* ProductEntity[] */ ],
  "pagination": {
    "total_records": 25,
    "total_pages": 3,
    "current_page": 1,
    "next_page": 2,
    "prev_page": null
  }
}

Customers API

Retrieve Customer

GET /v1/customers?customer_id={id}
GET /v1/customers?email={email}

Retrieve by ID or email (provide one, not both). Response: CustomerEntity

{
  "id": "cust_abc123",
  "mode": "test",
  "object": "customer",
  "email": "user@example.com",
  "name": "John Doe",
  "country": "US",
  "created_at": "2024-01-01T00:00:00Z",
  "updated_at": "2024-01-01T00:00:00Z"
}

List Customers

GET /v1/customers/list?page_number={n}&page_size={size}

Generate Customer Portal Link

POST /v1/customers/billing

Request Body:

{
  "customer_id": "cust_abc123"
}

Response:

{
  "customer_portal_link": "https://creem.io/portal/cust_abc123?token=..."
}

Subscriptions API

Retrieve Subscription

GET /v1/subscriptions?subscription_id={id}

Response: SubscriptionEntity

{
  "id": "sub_abc123",
  "mode": "test",
  "object": "subscription",
  "status": "active",
  "product": { /* ProductEntity */ },
  "customer": { /* CustomerEntity */ },
  "items": [
    {
      "id": "sitem_xyz789",
      "object": "subscription_item",
      "product_id": "prod_abc123",
      "price_id": "pprice_123",
      "units": 5,
      "mode": "test"
    }
  ],
  "collection_method": "charge_automatically",
  "last_transaction_id": "tran_xyz789",
  "last_transaction_date": "2024-01-01T00:00:00Z",
  "next_transaction_date": "2024-02-01T00:00:00Z",
  "current_period_start_date": "2024-01-01T00:00:00Z",
  "current_period_end_date": "2024-02-01T00:00:00Z",
  "canceled_at": null,
  "created_at": "2024-01-01T00:00:00Z",
  "updated_at": "2024-01-01T00:00:00Z"
}

Subscription Statuses:

active - Currently active and paid
trialing - In trial period
paused - Temporarily paused
canceled - Canceled (terminal)
unpaid - Payment failed
scheduled_cancel - Will cancel at period end

Update Subscription

POST /v1/subscriptions/{id}

Request Body:

{
  "items": [
    {
      "id": "sitem_xyz789",
      "units": 10
    }
  ],
  "update_behavior": "proration-charge-immediately"
}

Update Behaviors:

proration-charge-immediately - Charge prorated amount now, new billing cycle starts
proration-charge - Credit added to next invoice, same billing cycle
proration-none - No proration, change at next cycle

Upgrade Subscription

POST /v1/subscriptions/{id}/upgrade

Request Body:

{
  "product_id": "prod_premium",
  "update_behavior": "proration-charge-immediately"
}

Cancel Subscription

POST /v1/subscriptions/{id}/cancel

Request Body:

{
  "mode": "scheduled",
  "onExecute": "cancel"
}

Options:

mode: immediate (cancel now) or scheduled (at period end)
onExecute: cancel or pause (only for scheduled mode)

Pause Subscription

POST /v1/subscriptions/{id}/pause

No request body required.

Resume Subscription

POST /v1/subscriptions/{id}/resume

No request body required.

Licenses API

Activate License

POST /v1/licenses/activate

Request Body:

{
  "key": "ABC123-XYZ456-XYZ456-XYZ456",
  "instance_name": "johns-macbook-pro"
}

Response: LicenseEntity

{
  "id": "lic_abc123",
  "mode": "test",
  "object": "license",
  "status": "active",
  "key": "ABC123-XYZ456-XYZ456-XYZ456",
  "activation": 1,
  "activation_limit": 3,
  "expires_at": "2025-01-01T00:00:00Z",
  "created_at": "2024-01-01T00:00:00Z",
  "instance": {
    "id": "inst_xyz789",
    "mode": "test",
    "object": "license-instance",
    "name": "johns-macbook-pro",
    "status": "active",
    "created_at": "2024-01-01T00:00:00Z"
  }
}

License Statuses:

active - Valid and usable
inactive - No activations yet
expired - Past expiration date
disabled - Manually disabled

Validate License

POST /v1/licenses/validate

Request Body:

{
  "key": "ABC123-XYZ456-XYZ456-XYZ456",
  "instance_id": "inst_xyz789"
}

Deactivate License

POST /v1/licenses/deactivate

Request Body:

{
  "key": "ABC123-XYZ456-XYZ456-XYZ456",
  "instance_id": "inst_xyz789"
}

Discounts API

Create Discount

POST /v1/discounts

Request Body:

{
  "name": "Holiday Sale",
  "code": "HOLIDAY2024",
  "type": "percentage",
  "percentage": 20,
  "duration": "repeating",
  "duration_in_months": 6,
  "max_redemptions": 100,
  "expiry_date": "2024-12-31T23:59:59Z",
  "applies_to_products": ["prod_abc123", "prod_xyz456"]
}

Fields:

Field	Type	Required	Description
`name`	string	Yes	Display name
`code`	string	No	Discount code (auto-generated if empty)
`type`	string	Yes	`percentage` or `fixed`
`percentage`	number	If type=percentage	Discount percentage (e.g., 20 for 20%)
`amount`	number	If type=fixed	Fixed amount in cents
`currency`	string	If type=fixed	Currency for fixed discount
`duration`	string	Yes	`forever`, `once`, or `repeating`
`duration_in_months`	number	If duration=repeating	Months to apply
`max_redemptions`	number	No	Usage limit
`expiry_date`	string	No	ISO date when code expires
`applies_to_products`	array	Yes	Product IDs this applies to

Response: DiscountEntity

{
  "id": "dis_abc123",
  "mode": "test",
  "object": "discount",
  "status": "active",
  "name": "Holiday Sale",
  "code": "HOLIDAY2024",
  "type": "percentage",
  "percentage": 20,
  "duration": "repeating",
  "duration_in_months": 6,
  "max_redemptions": 100,
  "expiry_date": "2024-12-31T23:59:59Z",
  "applies_to_products": ["prod_abc123"],
  "redeem_count": 15
}

Retrieve Discount

GET /v1/discounts?discount_id={id}
GET /v1/discounts?discount_code={code}

Delete Discount

DELETE /v1/discounts/{id}/delete

Transactions API

Get Transaction

GET /v1/transactions?transaction_id={id}

Response: TransactionEntity

{
  "id": "tran_abc123",
  "mode": "test",
  "object": "transaction",
  "amount": 2900,
  "amount_paid": 3509,
  "discount_amount": 0,
  "currency": "USD",
  "type": "invoice",
  "tax_country": "US",
  "tax_amount": 609,
  "status": "paid",
  "refunded_amount": null,
  "order": "ord_xyz789",
  "subscription": "sub_abc123",
  "customer": "cust_xyz789",
  "description": "Subscription payment",
  "period_start": 1704067200000,
  "period_end": 1706745600000,
  "created_at": 1704067200000
}

Transaction Types:

payment - One-time payment
invoice - Subscription payment

Transaction Statuses:

paid - Successfully paid
refunded - Fully refunded
partially_refunded - Partially refunded
chargeback - Disputed

List Transactions

GET /v1/transactions/search

Query Parameters:

Field	Type	Required	Description
`customer_id`	string	No	Filter by customer
`order_id`	string	No	Filter by order
`product_id`	string	No	Filter by product
`page_number`	number	No	Page number
`page_size`	number	No	Items per page

Common Entities

OrderEntity

{
  "id": "ord_abc123",
  "mode": "test",
  "object": "order",
  "customer": "cust_xyz789",
  "product": "prod_abc123",
  "transaction": "tran_xyz789",
  "discount": "dis_abc123",
  "amount": 2900,
  "sub_total": 2900,
  "tax_amount": 609,
  "discount_amount": 0,
  "amount_due": 3509,
  "amount_paid": 3509,
  "currency": "USD",
  "status": "paid",
  "type": "recurring",
  "created_at": "2024-01-01T00:00:00Z",
  "updated_at": "2024-01-01T00:00:00Z"
}

PaginationEntity

{
  "total_records": 100,
  "total_pages": 10,
  "current_page": 1,
  "next_page": 2,
  "prev_page": null
}

EnvironmentMode

Values: test, prod, sandbox

HTTP Response Codes

Code	Description
200	Success
400	Bad Request - Invalid parameters
401	Unauthorized - Missing API key
403	Forbidden - Invalid API key or limit reached
404	Not Found - Resource doesn’t exist
429	Rate Limited
500	Server Error

Rate Limits

Contact support for specific rate limits. Implement exponential backoff for 429 responses.

Idempotency

Use request_id for checkout sessions to prevent duplicate payments if retrying failed requests.

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Documentation Index

​CREEM API Reference

​Base Configuration

​Authentication

​Checkouts API

​Create Checkout Session

​Retrieve Checkout

​Products API

​Create Product

​Retrieve Product

​List Products

​Customers API

​Retrieve Customer

​List Customers

​Generate Customer Portal Link

​Subscriptions API

​Retrieve Subscription

​Update Subscription

​Upgrade Subscription

​Cancel Subscription

​Pause Subscription

​Resume Subscription

​Licenses API

​Activate License

​Validate License

​Deactivate License

​Discounts API

​Create Discount

​Retrieve Discount

​Delete Discount

​Transactions API

​Get Transaction

​List Transactions

​Common Entities

​OrderEntity

​PaginationEntity

​EnvironmentMode

​HTTP Response Codes

​Rate Limits

​Idempotency

CREEM API Reference

Base Configuration

Authentication

Checkouts API

Create Checkout Session

Retrieve Checkout

Products API

Create Product

Retrieve Product

List Products

Customers API

Retrieve Customer

List Customers

Generate Customer Portal Link

Subscriptions API

Retrieve Subscription

Update Subscription

Upgrade Subscription

Cancel Subscription

Pause Subscription

Resume Subscription

Licenses API

Activate License

Validate License

Deactivate License

Discounts API

Create Discount

Retrieve Discount

Delete Discount

Transactions API

Get Transaction

List Transactions

Common Entities

OrderEntity

PaginationEntity

EnvironmentMode

HTTP Response Codes

Rate Limits

Idempotency