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merchant-api

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Self-hosted, non-custodial stablecoin payment gateway with x402 and invoice checkout. Accepts USDC, USDT, PYUSD and DAI across 8 networks with QR payments, payment links, settlement tracking and signed webhooks. REST API, micropayments, exports, zero platform fees and no KYC. Python, cross-platform.

  • Updated Oct 7, 2026
  • Python

The first free, open-source, self-hosted MCP server for Google Merchant Center (GMC). 126 tools over Merchant API v1 — products, inventory, reports, promotions, returns, account config, audit log + rollback, dry-run. Free alternative to paid SaaS (Adzviser, Catchr, Windsor.ai, Pipedream).

  • Updated May 2, 2026
  • Python

High-performance e-commerce REST API built with Node.js/Express, MongoDB (with strategic indexing) and compression middleware. Features JWT authentication, aggregation pipeline for analytics, and optimized database queries. https://drive.google.com/file/d/17E41gogUixrQasB0yIj7ulqzHr4gmkXD/view?usp=drive_link

  • Updated Jun 27, 2026
  • JavaScript

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