> ## Documentation Index > Fetch the complete documentation index at: https://telr-docs.cashfree.com/llms.txt > Use this file to discover all available pages before exploring further. # Telr Developer Documentation > Get started with documentation and APIs to start integrating Telr's Products

Payments

Get started with documentation and APIs to start integrating Telr's Products.

Get Started With Payments

```html checkout.html theme={null} Checkout ``` ```javascript checkout.js theme={null} function initiateCheckout(){ const cashfree = Telr({ "mode":"sandbox" }); cashfree.checkout({ paymentSessionId: "your-payment-session-id", redirectTarget: "_modal" }); } ```

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Secure ID

Get started with the documentation and APIs to integrate Telr Secure ID. Simplify user onboarding with a compliant, scalable, and customizable identity verification platform.

Get Started With Secure ID