01Open source
Repos
Open-source repos worth knowing, by the problem they take on.
Crypto & Web3
hush
This open-source beta enables private email on Stellar with encrypted messages, recipient-controlled inbox policies, optional postage.
Stellar Pathfinder
This Go-based corridor-integrity monitor for Stellar prices stablecoin-to-fiat-token routes, scores them against independent rates.
Evm Hack Registry
This self-contained, offline-runnable archive compiles proof-of-concept exploits for DeFi hacks spanning EVM history from 2017 to 2026.
Clearledger Contracts
These Soroban smart contracts in Rust handle invoice finance on Stellar, including participant registry, invoice lifecycle, USDC liquidity pools.
oksolc
This Zig-based Solidity compiler offers faster iteration for development purposes as an alternative to the original solc.
Slot Drift Analysis
SlotDrift is a Rust tool that analyzes captured Solana slot records to identify gaps, skips, duplicate slots, and orphaned branches. It is notable as an independent, offline observability tool for validators to assess chain continuity and fork behavior.
README Bitcoin Chain
A small Bitcoin-like chain whose canonical ledger is my README. Proof of work is subset-sum, not hashing.
CryptTrace OSINT Toolkit
Crypttrace is an OSINT toolkit that traces crypto fund flows across Ethereum, Bitcoin, Tron, and Solana, labeling known entities and scoring risk. It is notable for its practical multi-chain forensics workflow and local interactive fund-flow graphs.
MetaMask Desktop
MetaMask Desktop is a cross-platform desktop app for managing a cryptocurrency wallet and interacting with Web3 apps. It is notable as the official desktop alternative to MetaMask's browser extension, offering improved stability and system integration.
ChronoStar Protocol
ChronoStar is a Stellar Soroban protocol providing time-based payment primitives such as scheduled vaults, recurring streams, and DCA policies. It is notable for substantive Rust smart contracts and an org-owned implementation of scheduled/recurring DeFi payments.
Polymarket Strategy Handbook
Polymarket strategy handbook documenting 39 strategies across 14 families, covering market structure, execution, backtesting, risk, and failure modes. Notable as research-first documentation for prediction-market developers and traders who want mechanics rather than guaranteed-profit bots.
OpenLaunch Launchpad
OpenLaunch is a free launchpad that deploys a fixed‑supply ERC‑20 token, creates a Uniswap v4 pool with locked liquidity, and imposes no platform fees. Its novelty lies in ownerless liquidity lockers and zero‑fee design for launches on Base and Robinhood.
LayerX Network
LayerX Network is a deterministic execution and accounting protocol that records each state‑changing operation as a signed, canonically encoded Activity for autonomous agents. It is notable as an organization‑backed infrastructure offering novel deterministic guarantees and is under active development.
USDT Payment Gateway
DigitalShieldPay is a non‑custodial, multi‑chain payment gateway that lets developers and merchants create orders, monitor on‑chain USDT/USDC transactions, and sync payment status. It is notable for providing clear SDK documentation and merchant demos for crypto payments.
Arkham Go SDK
arkham-go is a production‑ready Go SDK that fully covers the Arkham Intel API, including REST endpoints and WebSocket v2 streams, with idiomatic types, context support, and built‑in credit tracking. It stands out for zero external dependencies and comprehensive coverage.
Stellar Forge
Stellar Forge is a bounty marketplace on Stellar that holds XLM or USDC rewards in a Soroban escrow contract and releases them after a GitHub‑verified pull request is approved. It is notable for on‑chain escrow that removes the frontend.
Stenion Risk Intelligence
Stenion provides continuous, on‑chain risk scores for Stellar/Soroban DeFi protocols by reading their state directly from the blockchain and calculating a 0‑100 safetyScore. It is notable for its fully public, auditable methodology and active maintenance.