Metadata Reference Materials

Data Protocols/Architecture

The Graph

Oops! This page was lost in space...The Graph

Fluree - Data-Centric Architecture

Introduction to Data-Centricity - FlureeFluree

Data APIs

Cardano REST

Cardano REST provides a set of APIs for interacting with on-chain data through JSON over HTTP.

GitHub - input-output-hk/cardano-rest: HTTP interfaces for interacting with the Cardano blockchain.GitHub

Discord Context

Discord - Group Chat That’s All Fun & GamesDiscord

GraphQL

GraphQL is a query language for APIs and a runtime for fulfilling those queries with your existing data.

GraphQL | A query language for your APIgraphql

Cross Platform Standards

InterNFT Working Group

A community-led initiative to develop Interchain standards that will advance the state of the art for Non-fungible Tokens and the Metadata associated with uniquely identified tokenised resources.

InterNFTinternft.org

InterNFT GitHub Repository

GitHub - interNFT/nft-rfc: Requests for CommentsGitHub

The Ethereum Platform

Opensea Metadata Standards

How to add rich metadata to your ERC721 or ERC1155 NFTs

Metadata StandardsOpenSea Developer Documentation