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Cross-Chain & Interoperability
Bridge builders, protocol designers, and chain-agnostic developers working on interoperability — LayerZero, Axelar, Wormhole, and the future of multi-chain applications.
Large Language Models (LLMs)
Researchers, engineers, and prompt designers working with GPT-4, Claude, Llama, Mistral, and beyond. Discuss fine-tuning, RAG pipelines, evaluation, alignment, and real-world deployment of LLMs.
AI Agents & Autonomous Systems
The frontier of autonomous AI — multi-agent frameworks, tool-use, memory systems, planning algorithms, and the engineering challenges of building agents that actually work reliably.
BlockHangs — General
The official BlockHangs community. Announcements, feature discussions, feedback, and the place where Web3 developers, AI researchers, founders, and builders come together.
Ethereum Developers
The largest community for Ethereum smart contract developers. Discuss Solidity, EVM, Layer 2 solutions, DeFi protocols, and the latest EIPs. From beginners writing their first contract to core contrib...
Solana Builders
Community for Solana ecosystem developers and enthusiasts. Explore Rust-based smart contracts, high-throughput dApps, NFT tooling, and the latest developments from the Solana Foundation.
DeFi Protocol Engineers
Deep technical discussions about decentralised finance protocols — AMMs, lending markets, yield optimisers, MEV, flash loans, tokenomics design, and on-chain security auditing.
NFT Creators & Collectors
Where digital artists, generative art creators, and serious collectors meet. Discuss minting strategies, royalty models, marketplace trends, NFT tooling, and the culture of on-chain art.
Web3 Security & Auditing
Smart contract security professionals, auditors, and white-hat hackers. Share vulnerability research, audit methodologies, CTF write-ups, and best practices for writing exploit-resistant code.
Bitcoin & Lightning Network
Technical and philosophical discussions about Bitcoin — the Lightning Network, Taproot, ordinals, mining, node operation, and the cypherpunk values at the foundation of the protocol.
Polkadot & Substrate Developers
Build parachains, pallets, and cross-chain applications on the Polkadot network using the Substrate framework. Discuss XCM, runtime upgrades, and the Dotsama ecosystem.
Zero Knowledge Proofs (ZK)
Cutting-edge research and engineering around ZK-SNARKs, ZK-STARKs, zkEVMs, and privacy-preserving applications. For mathematicians, cryptographers, and ZK circuit developers.