Create Checkout Session

POST /credits/checkout

This endpoint creates a Stripe checkout session to allow a user to purchase a credit package. Requires session-based authentication (JWT access token from login).

For third-party integrations: Use POST /credits/checkout/api with API Key authentication instead.

Request Body

string

required

The ID of the credit package to purchase. Get available packages from /credits/packages.

string

The URL to redirect to after a successful purchase. Defaults to dashboard with success indicator.

string

The URL to redirect to if the purchase is canceled. Defaults to dashboard with canceled indicator.

Response

string

The ID of the Stripe checkout session.

string

The URL of the Stripe checkout page. Redirect the user here to complete purchase.

object

Details of the selected package.

Show package properties

string

Package identifier.

string

Package name.

number

Number of credits in the package.

number

Price in cents.

curl -X POST https://api.llmgenerator.com/api/v1/credits/checkout \
  -H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
        "packageId": "pkg_pro",
        "successUrl": "https://example.com/success?session_id={CHECKOUT_SESSION_ID}",
        "cancelUrl": "https://example.com/cancel"
      }'

const response = await fetch('https://api.llmgenerator.com/api/v1/credits/checkout', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_ACCESS_TOKEN',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    packageId: 'pkg_pro'
  })
});

const data = await response.json();
// Redirect user to data.url
window.location.href = data.url;

{
  "sessionId": "cs_test_a1b2c3d4e5f6g7h8i9j0",
  "url": "https://checkout.stripe.com/c/pay/cs_test_a1b2c3d4e5f6g7h8i9j0",
  "package": {
    "id": "pkg_pro",
    "name": "Pro Pack",
    "credits": 500,
    "priceCents": 1999
  }
}

{
  "message": "Credit package not found"
}

POST /credits/checkout/api

This endpoint creates a Stripe checkout session using API Key authentication. Ideal for third-party integrations and external applications.

Authentication

Requires API Key authentication. Include your API key in the Authorization header:

Authorization: Bearer llmgen_your_api_key_here

Request Body

Same as /credits/checkout above.

Response

Same as /credits/checkout above.

curl -X POST https://api.llmgenerator.com/api/v1/credits/checkout/api \
  -H "Authorization: Bearer llmgen_your_api_key_here" \
  -H "Content-Type: application/json" \
  -d '{
        "packageId": "pkg_pro",
        "successUrl": "https://yourapp.com/success?session_id={CHECKOUT_SESSION_ID}",
        "cancelUrl": "https://yourapp.com/cancel"
      }'

const response = await fetch('https://api.llmgenerator.com/api/v1/credits/checkout/api', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer llmgen_your_api_key_here',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    packageId: 'pkg_pro',
    successUrl: 'https://yourapp.com/success?session_id={CHECKOUT_SESSION_ID}',
    cancelUrl: 'https://yourapp.com/cancel'
  })
});

const data = await response.json();
// Redirect user to data.url in your app

import requests

response = requests.post(
    'https://api.llmgenerator.com/api/v1/credits/checkout/api',
    headers={
        'Authorization': 'Bearer llmgen_your_api_key_here',
        'Content-Type': 'application/json'
    },
    json={
        'packageId': 'pkg_pro',
        'successUrl': 'https://yourapp.com/success',
        'cancelUrl': 'https://yourapp.com/cancel'
    }
)

data = response.json()

Get Started

Integrations

API Reference

Create Checkout Session

POST /credits/checkout

Request Body

Response

POST /credits/checkout/api

Authentication

Request Body

Response

​POST /credits/checkout

​Request Body

​Response

​POST /credits/checkout/api

​Authentication

​Request Body

​Response

POST /credits/checkout

Request Body

Response

POST /credits/checkout/api

Authentication

Request Body

Response