EBG TokenizerCertificate NFTs on Ethereum

Hosted JSON API at ebg-tokenizer.u3dev.deno.net — factory-deployed ERC-721 collections on Arbitrum, documented for integrators.

Introduction

HTTP API

Live API

Smart contracts

Onchain model

A factory contract deploys certificate collections from a blueprint; mints and caps are enforced with role-based access.

HTTP API

Create collections, mint and update certificate metadata, and serve ERC-721 JSON metadata over HTTPS—without signing transactions in the browser for hosted flows.

Standards

ERC-721, ERC-3643-style certificate storage, ERC-4906 metadata updates, EIP-712 permit, and ERC-5202 blueprint deployment.