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Payments & Stablecoins

Walty

Walty is an open-source, self-custodial crypto point-of-sale web application that lets businesses request USDC or USDT payments, share QR codes or payment links, reconcile transactions on-chain, manage cashier wallets, and create refund flows across supported EVM networks.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Walty — OpenViST project profile in Payments & Stablecoins.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use Walty when a business needs self-custodial stablecoin checkout together with cashier operations, payment reconciliation and refund workflows in a self-hosted web application.

Who it is for

  • Businesses accepting stablecoin payments
  • Merchant teams operating multiple cashiers
  • Developers adapting a TypeScript, MIT-licensed crypto POS

Documented uses

  • Create USD-denominated USDC or USDT payment requests
  • Share checkout through QR codes and payment links
  • Track payment status through on-chain reconciliation
  • Handle split payments and refunds
  • Assign cashier wallets and collect funds into an owner wallet
Before you choose

Requirements & limits

Walty is presented as a public MIT-licensed repository. The documented deployment options include local development with Docker and a production-style application container using an external PostgreSQL database.

  • The default environment exposes Polygon, while the codebase supports Ethereum, Arbitrum, Base, Optimism and Polygon.
  • Blockchain-enabled usage requires Alchemy API keys.
  • Payment reconciliation requires PAYMENTS_RECONCILE_SECRET.
  • The wallet model uses 2-of-3 MPC key generation and transaction-signing ceremonies.
  • The local development compose file provides PostgreSQL; the production-style container expects an external PostgreSQL database.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Set up a local Walty development instance

Prepare the documented local application and PostgreSQL development environment.

Before you start

  • Git
  • Docker
  • pnpm
  • A copy of the Walty repository
  • Values for DATABASE_URL and JWT_SECRET in the environment configuration

Steps

  1. Clone the Walty repository and change into its directory.

  2. Copy .env.example to .env.

  3. Start the local PostgreSQL service with docker compose -f compose.dev.yml up -d.

  4. Install dependencies with pnpm install, run pnpm db:migrate, and start the development server with pnpm dev.

  5. Open the documented local address, http://localhost:3000.

Expected outcome

A locally running Walty development instance with its database migrations applied.

Guide limitations

  • The development compose file starts PostgreSQL only.
  • Blockchain-enabled usage additionally requires ALCHEMY_API_KEY and NEXT_PUBLIC_ALCHEMY_API_KEY.
  • Payment reconciliation additionally requires PAYMENTS_RECONCILE_SECRET.
  • This is a development setup and does not establish production deployment suitability.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
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Sources checked
3 October 2026
Original website title
ignaciogarcia-dev/walty · Official homepage title · retained in its source language
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