A comprehensive SDK and smart contract library for modular features. This repository provides Solidity smart contracts and a code-first SDK that exposes functional primitives (Match, Scores, App) for building on-chain applications.

You can test the features of contracts and SDK using tests and the e2e-test app.

• Node.js 18+
• npm or yarn
• Doppler
• Foundry - for Solidity development and local e2e-test app

curl -L https://foundry.paradigm.xyz | bash
foundryup

./bin/setup

./bin/start

To run the test app with Doppler (useful for api integration tests), use the optional --doppler flag:

./bin/start --doppler

./bin/test

npx eslint --config eslint.config.mjs . # --fix
npx prettier . # --write

npm login

./bin/publish patch "Some commit message"

✅ Functional Primitives - Simple async functions instead of raw contract calls
✅ Type-Safe - Full TypeScript support with hierarchical context
✅ Automatic Address Management - Fetches contract addresses from backend
✅ No UI Lock-in - Build your own interface on top of primitives
✅ Server-Side Operations - Separate entry point for controller operations
✅ Secure by Default - API mode for production, optional encryption for dev/backend

⚠️ Controller Key Storage: The SDK stores controller keys locally in ohara-ai-data/ for development. For production:

• Use Ohara API mode (recommended) - keys managed securely by Ohara infrastructure
• Or enable key encryption with OHARA_KEY_ENCRYPTION_SECRET for backend deployments
• Never use local key storage in browser/frontend environments
• Never commit ohara-ai-data/ to version control

See sdk/README.md for detailed security guidance.

/
├── bin/                # Utility scripts
├── contracts/          # Solidity smart contracts
├── sdk/                # TypeScript SDK for on-chain features
├── scripts/            # Contracts -> SDK ABIs update script
└── e2e-test/           # End-to-end testing application (Next.js)

• Use contracts/README.md for info on contracts development and use.
• Use sdk/README.md for info on SDK development and use.
• Use e2e-test/README.md for info on e2e-test app development and use.