02/Documentation

PayLayer Documentation.

Complete API reference, integration guides, and dashboard help. Everything you need to start processing payments, calculating taxes, and generating invoices with PayLayer.

Overview

PayLayer is a unified payment infrastructure platform that abstracts away the complexity of integrating with payment gateways, calculating taxes, and generating compliant invoices. Connect your existing Razorpay (or Stripe) merchant account, define your products, and start collecting payments with automatic GST calculation and PDF invoice generation — all through a single, consistent API.

Gateway Agnostic

Connect Razorpay today, swap to Stripe later — zero code changes.

Smart Tax Engine

Automatic GST calculation — CGST, SGST, IGST — based on buyer/seller location.

Auto Invoicing

Every successful payment generates a tax-compliant PDF invoice automatically.

Idempotent Payments

Built-in idempotency keys prevent double-charging and duplicate intents.

Webhook Pipeline

Verified, deduplicated webhooks with async processing via Celery.

API Key Auth

Separate test / live API keys with Bearer token authentication.

Architecture

Your FrontendPayLayer APIRazorpay / Stripe

Razorpay WebhookPayLayer Webhook HandlerTax + Invoice + Status Update

Base URL

https://paylayer-api.onrender.com/api/v1

All API endpoints documented here are relative to this base URL.

Key Links

Dashboard — https://paylayercore.vercel.app Health Check — https://paylayer-api.onrender.com/api/v1/health/

Need help integrating?

Our engineering team is ready to help you with a personalized integration walkthrough and architecture review.

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