Documentation

Everything you need to integrate payzum and run it day to day.

• Getting started

  Issue an API key and create your first invoice.

  • Introduction →
  • Quick start →
  • Authentication →
  • Supported chains & currencies →

• Accept payments

  Create invoices and collect crypto.

  • API reference →
  • Hosted checkout →
  • Embeddable widget →
  • Payment links →
  • Reading invoices →

• Webhooks (IPN)

  Verify signatures and handle retries.

  • Overview & verification →
  • Payment IPN →
  • Mass-payout webhooks →
  • Retries & DLQ →

• Payouts (Treasury)

  Pay many recipients from a single funded deposit.

  • Mass payouts overview →
  • UTXO mass payouts →
  • EVM mass payouts →

• Payzum for Agents (x402)

  Accept machine-to-machine payments from AI agents.

  • x402 overview →
  • x402 integration →

• Compatibility adapters

  Drop-in for existing shopping-cart plugins.

  • CoinPayments adapter →
  • Legacy form adapter →

• Product guides

  Use payzum's dashboard features.

  • Merchants & API keys →
  • Donations →
  • Subscriptions →
  • POS & cashiers →
  • Conversions & settlement →
  • Wallet & payout addresses →

• API reference

  Error codes, limits, and the invoice lifecycle.

  • Errors →
  • Rate limits →
  • Invoice lifecycle →