Metr Merchant Payments

Manage your Metr merchant account — start payment sessions, end (settle) them, and withdraw funds to your wallet.

What is Metr?

Metr is a multi-chain payment protocol that lets merchants accept crypto (USDC, SOL, POL, ETH, and custom SPL/ERC-20 tokens) via session-based checkout. Funds are held in escrow during a session and released when the session ends.

• Website: https://metrpay.com
• API Base: https://api.metr.app/v1

Prerequisites

1. A Metr merchant account (sign up at https://metrpay.com)
2. Your Merchant API Key — found in your Metr dashboard under Settings → API Keys
3. (Optional) An Agent Key if you want to run agentic checkout sessions

Authentication