Track/visualize/explore all of crypto/DeFi/web3 in ONE informative, concise, customizable interface! • 🅱

Blockhead is a browser for Ethereum, EVM-based blockchains, web3 protocols, and the ecosystem of DeFi apps, digital organizations and internet experiences they enable!

It features a crypto/DeFi/NFT portfolio tracker; a cross-EVM block explorer; dynamic interfaces and explorers for smart contracts, DeFi protocols and web3-native data; and comprehensive data controls that let YOU decide the infrastructure powering the interface.

Blockhead pushes the boundaries of web3-native UX by embracing the multi-faceted trade-offs taking place at every layer of the web3 stack, synthesizing them into a unified interface that is informative, concise, transparent and adaptive toward many use cases.

With a local-first, dynamic, data-agnostic design, Blockhead is the ideal place to track, visualize and explore the decentralized world wide web!

📇 TRACK YOUR CRYPTO

Keep tabs on your blockchain accounts, web3 identities and crypto net worth, with token balances, DeFi balances, NFT collections and activity feeds displayed on a single page.

📊 VISUALIZE YOUR ACTIVITY

See your transactions, smart contract interactions and web3 data in context with intuitive visualizations and a multi-chain account-centric block explorer with human-friendly metadata.

🧭 EXPLORE THE METAVERSE

Discover apps, services and communities using decentralized infrastructure to deploy capital, coordinate action, inform with data, and create new web3-native digital experiences.

🧩 UNSTOPPABLE WEB3 TECH

Built on a transparent, composable, verifiable foundation of math, cryptography, open protocols, incentive-aligned computer networks, account abstractions and user-owned data.

🎛️ YOU CONTROL THE DATA

There's no central backend — you choose which data sources power the user interface! Optimize for speed, reliability, privacy and/or decentralization without compromises.

• Choose from 20+ data providers including Airstack, Alchemy, Chainlink, CoinGecko, Covalent, ENS, Etherscan, Etherspot, Figment, The Graph, IPFS, Infura, Lens, Moralis, NFTPort, Pocket Network, Push, QuickNode, Sourcify, Tenderly, Zapper, Zerion and more!

🌐 TO ETHEREUM & BEYOND!

Supporting Ethereum + layer-2s (Polygon, Gnosis Chain, Arbitrum, Optimism), other EVM-based chains (Avalanche, Fantom, Binance Smart Chain, Cronos, Aurora), and many more blockchain networks and web3 ecosystems to come!

🅱 Features/Integrations

🧮 Portfolio:

• Portfolio: create groups of Ethereum/EVM-based blockchain accounts to see associated token balances, DeFi balances and NFTs across the selected Ethereum and EVM-compatible chains and estimate their crypto net worth.
  • Add Account: enter a raw wallet address (0xabcd...6789), ENS name (e.g. vitalik.eth) or Lens handle (e.g. stani.lens), along with one or more supported EVM-based networks.
• Account:
  • Balances: sort assets alphabetically or numerically, and optionally hide small/irrelevant balances.
  • DeFi: view DeFi balances grouped by DeFi protocol (red-colored numbers denote debt/borrowed assets). Optionally show underlying assets backing vaults, liquidity pools, or index tokens.
  • NFTs: browse non-fungible tokens and their associated images, grouped by collection (contract). Optionally show their on-chain or off-chain metadata/attributes.
  • Feed: optionally show a live activity feed for supported web3 apps.
• Explore: Click any address, DeFi app, NFT contract name, ENS name or Lens handle to show more details in Explorer or Apps.
• Data transparency:
  • All data is sourced though data providers defined in Preferences and tagged with corresponding labels and icons throughout the interface.
  • Preferences and portfolio data are saved/cached within your browser's local storage.

🔭 Explorer:

• Explore blocks and transactions across several EVM-based blockchain networks: Ethereum, Polygon, Gnosis Chain, Arbitrum, Optimism, Avalanche, Fantom, Binance Smart Chain, Cronos, Aurora and more!
• Network overview: monitor statistics for a given network including the current block height and the native currency's current/historical price.
• Look up a transaction ID, block number, or address (0xabcd...6789, ENS name or Lens handle) by typing in the search field or via URL (blockhead.info/explorer/{networkName}/{query}).
  • The search field query is preserved when switching chains so you can easily look up details for the same address across multiple chains.
• Address (externally-owned accounts or smart contracts):
  • Balances: native/ERC-20 token balances associated with the address. Click a token to filter for transactions involving that token.
  • Smart contracts: browse verified smart contract code from Sourcify (IPFS).
• Block (by block number):
  • Look up consensus metadata and associated transactions.
  • Cross-reference blocks produced around the same time on other chains.
• Transactions (by transaction hash):
  • Browse transactions in three levels of detail:
    • Summary: just the primary action and/or native currency transfers, based on context.
    • Detailed: includes just the smart contract event logs directly involving the address, based on context.
    • Exhaustive: includes all transaction fees and smart contract event logs.
• Data transparency:
  • All data is sourced though data providers defined in Preferences and tagged with corresponding labels and icons throughout the interface.

📱 Apps:

• Dynamic interfaces and data explorers for popular dapps and web3 infrastructure projects:
  • ENS: browse registration details and records associated with names on the Ethereum Name Service (e.g. vitalik.eth)
  • Lens: look up Lens profiles by Lens handle (e.g. stani.lens)
  • Audius: search the Audius network for music artists, curators, playlists, and tracks, and play tracks directly from IPFS
  • The Graph: browse GraphQL schemas for subgraphs of popular dapps
• Integrated dashboards, and visualizations for DeFi protocols/primitives:
  • Uniswap, Aave, Balancer, Compound, Curve, 1inch, Sushi, InstaDapp, Loopring, Superfluid, Liquity, Quickswap and more!

📒 Accounts & Wallets:

• Wallets: connect and manage multiple wallet connections simultaneously, with easy drag-and-drop access from a toggleable side panel
  • Supported wallet connection protocols: injected EIP-1193 (browser extensions, mobile in-app browsers), WalletConnect 1.0, WalletConnect 2.0, Coinbase Wallet SDK, webmax.js
  • Supported wallet brands: MetaMask, Rainbow, Coinbase Wallet, IntmaxWallet, Liquality Wallet
• Lens: "Sign in with Lens" to generate an access token and enable interactions within Lens protocol.

⚙️ Preferences:

• Appearance:
  • Theme: choose a light or dark theme for the interface.
• Blockchain Data:
  • On-Chain Data: relay read-only smart contract data through "official" JSON-RPC endpoints, Alchemy, Figment, Infura, Pocket Network, QuickNode or Tenderly.
  • Transaction/Blocks: fetch block/transaction metadata from Airstack, Covalent, Etherspot or the chosen JSON-RPC node.
• Account Data:
  • Token Balances: relay native tokens and ERC-20 balances through the specified indexer API or RPC network.
  • DeFi Balances: fetch DeFi balances from the Zapper API (off-chain) or the Zerion DeFi SDK (on-chain).
  • NFTs: fetch NFT metadata from Airstack, Covalent or NFTPort.
• Analytics:
  • Currency: denominate token balances in Ethereum, Bitcoin or your local fiat currency.

🛠️ Coming soon...

Contribute now to help support new features!

• More data sources – integrate with more data providers and indexing solutions for maximum flexibility, redundancy, and transparency
  • Tokens/Prices: Token Lists, Chainlink oracles, CoinGecko, CoinMarketCap and more
  • DeFi: DefiLlama, Messari, Zapper, DeBank OpenAPI and more
  • NFTs: OpenSea, Zora, Defined, Center and more
  • Chains: Chainlist, DefiLlama
  • Transactions/smart contracts: Etherscan, Tenderly
  • RPC providers: Chainstack, HOPR
  • Running a web3 infrastructure service or indexing API? Reach out or sponsor a grant or hackathon – I'll be happy to add an integration!
• More robust/accurate portfolio tracking:
  • Token whitelists/blacklists to filter by use cases and hide scam tokens from view
  • Show, hide and/or auto-detect EVM networks for a given EVM-based wallet address
  • "All transactions" view with CSV/JSON export
  • Individual NFT lookup; NFT gallery view with rich multimedia support
  • Detailed charts and analytics for token balances and DeFi holdings
  • Activity import from centralized exchanges and other CeFi/CeDeFi products
• Improved Explorer view:
  • Visualizations and human-readable descriptions for common dapp/smart contract interactions: transfers, swaps, deposits, withdrawals, staking, yield farming, minting, burning, governance voting, and more
  • Image previews when sharing links on Twitter/social media
  • Compatibility with the EIP-3091 block explorer standard
  • Browse verified smart contract source code with syntax highlighting for Solidity, Vyper, Huff and more
  • Distinguish externally-owned accounts from smart contracts/"account abstraction" instances
  • Show token stats/market data for ERC-20 smart contracts
  • Add addresses to portfolio
  • Highlight addresses found in your portfolio
• Improved Apps view:
  • Explorer for IPFS/IPNS content
  • Dedicated UI flows for DeFi actions/protocols: exchanges, vaults, liquidity pools, bridges, and more
  • Generalize the ENS explorer to work with any subgraph from The Graph
  • Explorer for on-chain and off-chain governance/DAO activity
  • Lens Protocol: browse, collect and publish posts
• Accounts, wallets, web3-native authentication, and data portability:
  • General support for Safe and other implementations of account abstraction standards like EIP-4337
  • Robust support for all common wallet connection protocols: injected EIP-1193, WalletConnect 1.0, WalletConnect 2.0, Coinbase Wallet SDK, hardware wallets
  • Look up addresses associated with web3-native identities/DIDs: ENS, Ceramic Network, Unstoppable Domains
  • General support for authentication/verification schemes: Sign in with Ethereum, SpruceID
  • Privacy-friendly data sync via web3-native identities/DID solutions: Worldcoin, ION, FIO, SkyID
  • Sync data/preferences peer-to-peer across multiple device/clients running Blockhead instances
• Granular preferences and data transparency:
  • Choose different/multiple/user-added RPC endpoints and data providers for each chain
  • Customizable IPFS gateway
  • Networking introspection with data flow diagrams
  • Tag data sources and dapps based on their degree of centralization/decentralization, whether on-chain or off-chain
  • Real-time visualization of blocks, cross-chain messages, token transfers, and more
• "Pro" interface:
  • Create multi-column views to show multiple feeds on screen (similar to Tweetdeck)
  • Drag and drop entities seamlessly across columns and windows to fill form fields and trigger transfers or other interactions
• Experience Blockhead in more places:
  • Decentralized/censorship-resistant frontend hosting
  • Naming systems: ENS, IPNS, Handshake, Unstoppable Domains
  • Content/storage networks: IPFS, Arweave, Akash, Internet Computer, Skynet
  • macOS, Windows, and Linux native versions using Tauri
  • iOS, Android, and progressive web app versions using Capacitor
  • Distribution through "self-hosted" app store platforms, registries and discovery networks: DAppNode, Umbrel, Urbit, Valist, Everest, Skynet Homescreen
• Support for more blockchains and consensus-based digital asset networks:
  • EVM-based blockchains/sidechains/layer-2s: Celo, Harmony, zkSync, RSK, Metis and more
  • Other blockchain/web3 ecosystems: Cosmos, Solana, Arweave, Polkadot/Substrate, Bitcoin, Stacks, Liquid Network, Algorand, Filecoin and more
• Engineering/code quality:
  • Documentation, linting, unit tests, end-to-end integration tests
  • Full TypeScript type safety
  • Changelog, releases, software versioning scheme
• Suggestions welcome – make a contribution and fill out the Feedback form!

🔔 Follow Blockhead

• 🅱 App: blockhead.info
• 🐦 Twitter: twitter.com/0xBlockhead • twitter.com/darryl__yeo
• 🪖 Gitcoin: bounties.gitcoin.co/grants/2966/blockhead

💝 THANK YOU

• for supporting open source software, public goods, decentralization, and resilient financial & internet infrastructure to last for generations to come! ✨