Solana Dev Tools Examples Library

This repository is an example collection of practical Solana programs demonstrating a range of smart contract patterns and techniques:

• Anchor & Pinocchio frameworks
• SPL Token & Token-2022 features
• PDA security and authority patterns
• CPI token transfers and multi-program architecture
• Off-chain execution using Magicblock Ephemeral Rollups
• AI inference callbacks via solana-gpt-oracle
• On-chain price feeds via Switchboard On-Demand
• Local testing with LiteSVM for fast iteration

This repository is intended as a reference library to accelerate learning and onboarding for Solana smart contract developers.

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Directory Overview

Project	Framework	Concept Focus	Related Examples
accel-pinocchio-escrow	Pinocchio	PDA escrow vault, trustless token swap	escrow-litesvm (Anchor version)
escrow-litesvm	Anchor	Freeze logic + secure swap enforcement	accel-pinocchio-escrow
fundraiser	Pinocchio	Crowdfunding PDA state per contributor	PDA tracking patterns in vault-with-transfer-hook
magicblock-er-example	Anchor + Magicblock	Ephemeral Rollup delegation + VRF random state	magicblock-solana-ai-oracle (hybrid off-chain workflows)
magicblock-solana-ai-oracle	Anchor	AI credit score via Oracle callback CPI	magicblock-er-example
switchboard-example	Anchor	On-Demand price feed creation + parsing	Oracle interaction patterns in magicblock-solana-ai-oracle
vault-with-transfer-hook	Anchor	Token-2022 whitelist enforcement vault	whitelist-transfer-hook
whitelist-transfer-hook	Anchor	Minimal Transfer Hook enforcement logic	vault-with-transfer-hook

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Example Use Cases and Learning Paths

To help navigate:

Escrow and Token Swaps

• Beginner: accel-pinocchio-escrow → learn PDA basics without Anchor
• Intermediate: escrow-litesvm → add freeze periods, Anchor security constraints

DAO / Crowdfunding / Treasury

• fundraiser → multi-user state tracking, timed unlocks
• vault-with-transfer-hook → shared asset custody + whitelist governance

Oracles and Hybrid Compute

• switchboard-example → real-time pricing with On-Demand feeds
• magicblock-solana-ai-oracle → asynchronous AI callbacks
• magicblock-er-example → scalable off-chain execution with commit proofs

Token-2022 Advanced Features

• whitelist-transfer-hook → focused on validation logic
• vault-with-transfer-hook → integrates whitelist enforcement into vault flows

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Key Technologies Demonstrated

Category	Technologies Used
Smart Contract Frameworks	Anchor, Pinocchio
Token Standards	SPL Token, Token-2022 Transfer Hooks
Off-chain Compute	Magicblock Ephemeral Rollups, VRF
Oracle Systems	Switchboard, solana-gpt-oracle
PDA Design	Vault authority, Contributor PDAs, Delegation PDAs
Testing	LiteSVM local execution, cross-program tests

Developers can learn secure:

• PDA seed + bump enforcement
• CPI token transfers with signer seeds
• Time-locked and condition-based account access
• Multi-program dependency patterns

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Tooling Requirements

Install recommended dependencies globally:

solana --version
anchor --version
rustup --version

Depending on the example:

cargo build-bpf
anchor build
anchor test
cargo test -- --nocapture

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Why LiteSVM?

Several examples leverage LiteSVM to:

• Run Solana programs locally without spinning up a validator
• Simulate sysvars like Clock for time-based logic
• Debug with readable logs and deterministic state snapshots

This supports rapid development and iteration on secure PDA logic.

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Contributions Welcome

I encourage:

• Additional Anchor / Pinocchio examples
• More solana devtools Examples
• More Token-2022 extension use cases
• New oracle integrations
• More testing patterns

Guidelines:

• Clear documentation inside each project
• Proper PDA validation and secure CPI checks
• Full end-to-end test coverage where applicable