Changelog

v1.2.0 — August 2026

EURD discontinued — terminology updated across the docs to EURO (the e-money token) and EURQ/USDQ (the stablecoins)
x402 support for EURQ/USDQ on Ethereum and Polygon (EIP-2612 permit) documented
Unified facilitator at x402algo.ai.quantozpay.com — one service now handles both Algorand and EVM settlement
pay_x402_challenge fixed to the euro scheme
npm package renamed — @ever_amsterdam/x402-euro-eurd is now published as x402-quantoz-euro; the old name is deprecated
MCP tool count corrected to 37

x402 EURD payment protocol support

x402 facilitator at POST /x402/pay and POST /x402/verify — any merchant can protect an HTTP resource with a per-request EURD payment using two API calls, no SDK required
@ever_amsterdam/x402-euro-eurd npm package (since renamed to x402-quantoz-euro) — fetch wrapper that automatically pays x402 EURD challenges and retries the request; hooks for spending limits and confirmation flows
Replay protection — the facilitator tracks spent payment request codes server-side; merchants get this for free
Merchant and agent developer docs — new x402 section at /x402/

Initial public release of the hosted MCP server.

Hosted MCP server at https://mcp.ai.quantozpay.com/mcp — no local process required
API key auth via X-API-KEY header — create keys in the Quantoz portal
36 MCP tools covering payments, accounts, funding, collection, and profile
Structured error responses with machine-readable error codes
Admin dashboard at /admin for usage monitoring