> ## Documentation Index > Fetch the complete documentation index at: https://razorpay-60c89f9a-mintlify-audit-missing-sections-1778528421.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Guest Checkout APIs for Alt ID Requestors > As per the latest RBI guidelines for Payment Acquirers (PA) and Payment Gateways (PG), guest checkout payments need to use an Alternate Identifier, known as Alt ID. If you are a token requestor directly integrated with a payment network, you can consider one of these approaches: 1. [**You are the Alt ID requestor**](#approach-1-you-are-the-alt-id-requestor): Before initiating the payment, you fetch the Alt ID from networks and process the payment with Razorpay using Alt ID details. 2. [**Razorpay is the Alt requestor and payment processor**](#approach-2-razorpay-as-the-alt-id-requestor): Razorpay will fetch the Alt ID from networks and process the payment. You can continue using our Create Payment APIs. **Handy Tips** The first approach is only possible for Visa, Mastercard, Amex and Diners payments. Razorpay will be the token and the Alt ID requestor for all Rupay payments. ## Approach 1: You are the Alt ID Requestor Use this API to make the payment when a customer initiates a payment. /payments/create/json ````curl: Request theme={null} curl -u [YOUR_KEY_ID]:[YOUR_KEY_SECRET] \ -X POST https://api.razorpay.com/v1/payments/create/json \ -H "content-type: application/json" \ -d '{ "amount": 500000, "currency": "INR", "order_id": "order_Fg6IGePNMKXXXX", "email": "gaurav.kumar@example.com", "contact": "9090909090", "method": "card", "card": { "number": "4386289407660153", "expiry_month": "12", "expiry_year": "30", "cryptogram_value": "as34ag3h78dsdasdsd1", "cvv": "123", "tokenised": false, "token_provider": "Visa", "provider_type": "network" }, "ip": "192.168.0.103", "user_agent": "Mozilla/5.0", "description": "Test payment", "notes": { "note_key": "value1" } }' ```json: Response { "razorpay_payment_id": "pay_IFCxyfBO08Lnb4", "next": [ { "action": "redirect", "url": "https://api.razorpay.com/v1/payments/IFCxyfBO08Lmb4/authenticate" } ] } ```` ### Request Parameters `amount` *mandatory* : `integer` The payment amount you want to collect from the customer. `currency` *mandatory* : `string` The 3-character ISO code of the currency. Here, it is `INR`. `order_id` *mandatory* : `string` The unique identifier of the order created for this payment. Create an order using the [Orders API](/api/orders). `email` *mandatory* : `string` The customer's email address. `contact` *mandatory* : `string` The customer's phone number. `method` *mandatory* : `string` The payment method. Here, it is `card`. `card` *mandatory* : `object` The details of the card. `expiry_month` : `integer` The expiry month of Alt ID. **Handy Tips** For Visa, add the original card expiry month. `expiry_year` : `integer` The expiry year Alt ID. **Handy Tips** For Visa, add the original card expiry year. `number` *mandatory* : `integer` Alt ID. `cryptogram_value` : `string` The Alt cryptogram value. `tokenised` *mandatory* : `boolean` Indicates if the payment is made using tokenised card or actual card. Possible values: * `true`: Pass `true` when you are making the payment using a token. * `false` (default): Pass `false` when you are making the payment using an Alt ID. `token_provider` *mandatory* : `string` The name of the aggregator that provided the token. Possible values: * Visa * Mastercard * Amex * Rupay * HDFC for Diners `cvv` : `string` The card's CVV number. ## Approach 2: Razorpay as Alt ID Requestor Use this API to make the payment when a customer initiates a payment. **Handy Tips** Approach 2 is applicable only for Visa, Mastercard, Diners, and Amex payments. If you are processing Rupay payments, you should initiate the payment request using plain card details. /payments/create/json ````curl: Request theme={null} curl -X POST \ https://api.razorpay.com/v1/payments/create/json \ -u [YOUR_KEY_ID]:[YOUR_KEY_SECRET] \ -H "Content-Type: application/json" \ -d '{ "amount": 100, "currency": "INR", "contact": "9900008989", "email": "gaurav.kumar@example.com", "order_id": "order_DPzFe1Q1dEOKed", "method": "card", "card":{ "number": "4386289407660153", "name": "Gaurav", "expiry_month": "11", "expiry_year": "30", "cvv": "100" }, "authentication":{ "authentication_channel": "browser" }, "browser":{ "java_enabled": false, "javascript_enabled": false, "timezone_offset": 11, "color_depth": 23, "screen_width": 23, "screen_height": 100 }, "ip": "105.106.107.108", "referer": "https://merchansite.com/example/paybill", "user_agent": "Mozilla/5.0" }' ```json: Response { "razorpay_payment_id": "pay_FVmAstJWfsD3SO", "next": [ { "action": "redirect", "url": "https://api.razorpay.com/v1/payments/pay_FVmAstJWfsD3SO/authorize" }, { "action": "otp_generate", "url": "https://api.razorpay.com/v1/payments/pay_FVmAstJWfsD3SO/otp_generate?track_id=FVmAtLUe9XZSGM&key_id=" } ] } ```` ### Request Parameters `amount` *mandatory* : `integer` Payment amount in the smallest currency sub-unit. For example, if the amount to be charged is 299, then pass `29900` in this field. `currency` *mandatory* : `string` Currency code for the currency in which you want to accept the payment. For example, INR for Alt ID payments. `order_id` *mandatory* : `string` Unique identifier of the Order generated in the first step. `email` *mandatory* : `string` Email address of the customer. The maximum length supported is 40 characters. `contact` *mandatory* : `string` Phone number of the customer. The maximum length supported is 15 characters, inclusive of country code. `method` *mandatory* : `string` Name of the payment method. Possible value is `card`. `card` *mandatory* : `object` Details associated with the card. `number` : `string` Unformatted card number. `name` : `string` Name of the cardholder. `expiry_month` : `string` Expiry month for the card in MM format. `expiry_year` : `string` Expiry year for the card in YY format. `cvv` : `string` CVV printed on the back of the card. `user-agent` *mandatory* : `string` The User-Agent header of the user's browser. The default value will be passed by Razorpay if not provided by you. `ip` *mandatory* : `string` The customer's IP address. `authentication` *optional* : `object` Details of the authentication channel. `authentication_channel` : `string` The authentication channel for the payment. Possible values: * `browser` (default) * `app` `browser` *mandatory* : `object` Information regarding the customer's browser. This parameter need not be passed when `authentication_channel=app`. `java_enabled` : `boolean` Indicates whether the customer's browser supports Java. Obtained from the `navigator` HTML DOM object. Possible values: * `true`: Customer's browser supports Java. * `false`: Customer's browser does not support Java. `javascript_enabled` : `boolean` Indicates whether the customer's browser can execute JavaScript. Obtained from the `navigator` HTML DOM object. Possible values: * `true`: Customer's browser can execute JavaScript. * `false`: Customer's browser cannot execute JavaScript. `timezone_offset` : `integer` Time difference between UTC time and the cardholder's browser local time. Obtained from the `getTimezoneOffset()` method applied to the `Date` object. `screen_width` : `integer` Total width of the payer's screen in pixels. Obtained from the `screen.width` HTML DOM property. `screen_height` : `integer` Obtained from the `navigator` HTML DOM object. `color_depth` : `integer` Obtained from the payer's browser using the `screen.colorDepth` HTML DOM property. `language` : `string` Obtained from the payer's browser using the `navigator.language` HTML DOM property. Maximum limit of 8 characters. `notes` *optional* : `object` Key-value object used for passing tracking info. Refer to [Notes](/api/understand#notes) for more details. `callback_url` *optional* : `string` URL endpoint where Razorpay will submit the final payment status. `referrer` *optional* : `string` Referrer header passed by the client's browser.