Learn OCEAN-SDK with Real Code Examples

Ocean SDK provides tools to publish, discover, and consume datasets on-chain or off-chain with privacy-preserving techniques.

It integrates with Ethereum, Polygon, and other EVM-compatible networks for tokenized data access.

Supports AI/ML workflows by allowing compute-to-data and data marketplace interactions.

Includes libraries, smart contracts, and APIs for data access control.

Used in DeFi, data marketplaces, and AI-data monetization platforms.

Ocean Market smart contracts

DDO (Decentralized Data Object) metadata format

Compute-to-data module

Access management via tokens

Event tracking for dataset consumption

DDO (Decentralized Data Object) defines dataset metadata

ERC-20 or ERC-721 tokens control dataset access

Compute-to-data allows private computation on data

Market contract handles publishing, buying, and consuming data

SDK exposes APIs for dataset lifecycle management

ocean-sdk/ - SDK library

scripts/ - dataset publishing scripts

tests/ - unit tests for integration

config/ - network and wallet configs

examples/ - reference dataset workflows

Define dataset metadata and DDO

Tokenize dataset using Ocean tokens

Publish dataset to marketplace

Enable compute-to-data if needed

Monitor consumption and earnings via blockchain events

Beginner: publish public dataset

Intermediate: tokenized dataset access

Advanced: compute-to-data integration

Expert: build full data marketplace

Auditor: verify smart contract interactions and compliance

Ocean SDK vs traditional data APIs: Ocean is decentralized and tokenized.

Ocean SDK vs Dataverse: Ocean supports blockchain monetization and compute-to-data.

Ocean SDK vs IPFS only: Ocean integrates access control and marketplace features.

Ocean SDK vs Substrate-based marketplaces: Ocean targets EVM chains.

Ocean SDK vs Filecoin: Filecoin stores data, Ocean enables monetization and computation.

2017 – Ocean Protocol founded

2018 – Initial Ocean SDK release

2019 – Compute-to-data support

2020 – Marketplace enhancements and Aquarius indexer

2021–2025 – Continuous SDK improvements and ecosystem growth

DDO: Decentralized Data Object

Brizo: compute-to-data service

Aquarius: metadata discovery service

Tokenization: assigning tokens for access

Marketplace: platform for dataset publishing