Resource Directory

Bitcoin.org

The original Bitcoin protocol information site with links to Bitcoin Core downloads and developer documentation.

https://bitcoin.org

Bitcoin Core

Official reference-client downloads for the Bitcoin Core software. Always verify SHA-256 hashes before installing.

https://bitcoincore.org

Bitcoin GitHub Repository

The open-source code repository for Bitcoin Core, source code, release notes, and issue tracking.

https://github.com/bitcoin/bitcoin

Bitcoin Improvement Proposals (BIPs)

The live index of all Bitcoin Improvement Proposals, the canonical source, always current by definition.

https://github.com/bitcoin/bips

Ethereum.org

Official Ethereum protocol documentation, wallet directory, staking guide, and developer learning hub.

https://ethereum.org

Ethereum Improvement Proposals (EIPs)

The live EIP index, all proposed and finalized Ethereum protocol changes.

https://eips.ethereum.org

Ethereum GitHub

Core client repositories and protocol specifications for Ethereum.

https://github.com/ethereum

IRS, Digital Assets Hub

The IRS official hub page for all digital asset tax guidance, linking to every relevant form and notice.

https://www.irs.gov/filing/digital-assets

IRS, Digital Asset FAQs

Plain-language FAQ format covering crypto tax obligations for US taxpayers.

https://www.irs.gov/individuals/international-taxpayers/frequently-asked-questions-on-digital-asset-transactions

FinCEN

Financial Crimes Enforcement Network, the primary US AML regulator for crypto businesses (MSB registration and guidance).

https://www.fincen.gov

SEC, Digital Asset Guidance

Securities and Exchange Commission, regulatory guidance on digital assets classified as securities.

https://www.sec.gov

CFTC

Commodity Futures Trading Commission, primary regulator for crypto derivatives and assets classified as commodities.

https://www.cftc.gov

FTC, Report Fraud

Official US consumer fraud reporting portal for reporting crypto scams and fraudulent schemes.

https://reportfraud.ftc.gov

OFAC Sanctions List Search

Official US sanctions screening tool, relevant for wallet and address screening awareness.

https://sanctionssearch.ofac.treas.gov

OCC (Office of the Comptroller)

Regulates national banks and federal savings associations, issues interpretive letters on crypto custody and stablecoin activities.

https://www.occ.treas.gov

FDIC

Federal Deposit Insurance Corporation, issues guidance on banks engaging in crypto-related activities and deposit insurance limits.

https://www.fdic.gov

CFPB (Consumer Financial Protection)

Consumer Financial Protection Bureau, handles complaints about crypto financial products and consumer protection enforcement.

https://www.consumerfinance.gov

FinCEN MSB Registrant Search

Public lookup tool to verify if a crypto exchange or money service business is properly registered with FinCEN.

https://www.fincen.gov/msb-registrant-search

NYDFS Virtual Currency

New York Department of Financial Services BitLicense page, the strictest US state-level crypto business licensing regime.

https://www.dfs.ny.gov/virtual_currency_businesses

IC3 (FBI Internet Crime)

FBI Internet Crime Complaint Center for reporting cryptocurrency fraud, ransomware payments, and investment scams.

https://www.ic3.gov

FCA, Cryptoassets Hub

The Financial Conduct Authority's primary crypto business regulation hub for the UK market.

https://www.fca.org.uk/firms/cryptoassets

FCA Register (Firm Lookup)

Public tool for checking whether a specific crypto firm is registered and authorized to operate in the UK.

https://register.fca.org.uk

Action Fraud

Official UK national fraud and cybercrime reporting portal for reporting crypto scams.

https://www.actionfraud.police.uk

HMRC, Cryptoassets Guidance

HMRC official collection of all tax guidance documents for cryptoasset holders and businesses in the UK.

https://www.gov.uk/government/collections/cryptoassets

HMRC, Cryptoassets Manual

Detailed HMRC internal manual covering Capital Gains Tax, Income Tax, and Corporation Tax treatment of cryptoassets.

https://www.gov.uk/hmrc-internal-manuals/cryptoassets-manual

Bank of England, Digital Currencies

Bank of England research hub on digital currencies, CBDCs, stablecoins, and their implications for monetary policy.

https://www.bankofengland.co.uk/research/digital-currencies

FCA, Consumer Cryptoassets Warning

FCA consumer-facing page explaining risks of crypto investments and how to check if a firm is authorized in the UK.

https://www.fca.org.uk/consumers/cryptoassets

HM Treasury

UK government economic and finance ministry responsible for crypto regulation policy, stablecoin legislation, and financial promotions rules.

https://www.gov.uk/government/organisations/hm-treasury

Financial Ombudsman Service

Independent dispute resolution service for complaints about financial firms operating in the UK, including registered crypto businesses.

https://www.financial-ombudsman.org.uk

European Commission, MiCA Regulation

Official EU Commission page for the Markets in Crypto-Assets (MiCA) framework, implementation timeline, and regulatory text.

https://finance.ec.europa.eu/regulation-and-supervision/financial-services-legislation/implementing-and-delegated-acts/markets-crypto-assets-regulation-mica_en

ESMA, Digital Finance

European Securities and Markets Authority, crypto/digital finance section with MiCA implementation guidance.

https://www.esma.europa.eu

EBA (European Banking Authority)

EU banking regulator responsible for AML supervision of crypto-asset service providers under MiCA.

https://www.eba.europa.eu

MiCA Regulation Full Text (EUR-Lex)

The complete legal text of Regulation (EU) 2023/1114 on Markets in Crypto-Assets, directly from the EU Official Journal.

https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32023R1114

AMF France, DASP Registration

French financial markets authority guide for Digital Asset Service Provider registration and compliance requirements.

https://www.amf-france.org/en/professionals/fintech/my-relations-amf/obtain-dasp-authorisation

ECB, Digital Euro Project

European Central Bank official page on the digital euro project, timeline, design choices, and public consultations.

https://www.ecb.europa.eu/paym/digital_euro/html/index.en.html

DNB, Crypto Service Providers (Netherlands)

De Nederlandsche Bank crypto supervision page covering registration requirements for crypto service providers in the Netherlands.

https://www.dnb.nl/en/sector-information/supervision-sectors/crypto-service-providers/

CONSOB, Fintech (Italy)

Italian securities regulator fintech section covering crypto-asset service provider oversight under MiCA transposition.

https://www.consob.it/web/consob-and-its-activities/fintech

Central Bank of Ireland, AML

Irish central bank AML/CFT framework covering virtual asset service provider registration and compliance obligations.

https://www.centralbank.ie/regulation/anti-money-laundering-and-countering-the-financing-of-terrorism

FATF, Virtual Assets

Financial Action Task Force, sets the international AML standard that most national regulators implement for virtual assets.

https://www.fatf-gafi.org

IOSCO (Securities Regulators)

International Organization of Securities Commissions, coordinates global securities regulation including crypto-asset standards.

https://www.iosco.org

FSB (Financial Stability Board)

Monitors global financial system stability, publishes crypto-asset and stablecoin regulatory recommendations adopted by G20 nations.

https://www.fsb.org

World Bank, Fintech

World Bank fintech hub covering digital payments, crypto regulation in developing nations, and financial inclusion research.

https://www.worldbank.org/en/topic/fintech

BIS, Crypto-Asset Standards

Basel Committee prudential treatment of crypto-asset exposures for banks, the global capital requirements framework.

https://www.bis.org/bcbs/publ/d545.htm

MAS, Payment Services Act (Singapore)

Monetary Authority of Singapore framework for regulating digital payment token services under the Payment Services Act.

https://www.mas.gov.sg/regulation/payments/payment-services-act

SFC, Virtual Assets (Hong Kong)

Hong Kong Securities and Futures Commission virtual asset regulatory framework for exchanges and fund managers.

https://www.sfc.hk/en/Rules-and-standards/Virtual-assets

FSA Japan

Japan Financial Services Agency, one of the first regulators to license crypto exchanges under the Payment Services Act.

https://www.fsa.go.jp/en/

VARA (Dubai)

Virtual Assets Regulatory Authority in Dubai, the dedicated crypto regulator for the Dubai free zone.

https://www.vara.ae

ASIC, Crypto-Assets (Australia)

Australian Securities and Investments Commission guidance on crypto-asset regulation, licensing, and consumer warnings.

https://www.asic.gov.au/regulatory-resources/digital-transformation/crypto-assets/

Etherscan

Ethereum block explorer for verifying transactions, contracts, and token balances.

https://etherscan.io

Blockstream Explorer

A well-established Bitcoin block explorer for transaction verification and blockchain browsing.

https://blockstream.info

Mempool.space

Live Bitcoin mempool visualization and fee estimation with real-time data on pending transactions.

https://mempool.space

Chainlist

Community RPC endpoint and chain-ID registry for adding EVM networks to wallets.

https://chainlist.org

Polygonscan

Block explorer for Polygon PoS chain, verify transactions, token transfers, and smart contracts on the Polygon network.

https://polygonscan.com

BscScan

BNB Smart Chain block explorer for verifying transactions, token activity, and contract interactions on BSC.

https://bscscan.com

Optimism Explorer

Block explorer for Optimism L2 rollup, built by Etherscan, for transaction and contract verification on OP Mainnet.

https://optimistic.etherscan.io

Arbiscan

Block explorer for Arbitrum One L2 rollup, verify transactions, contracts, and bridge activity on the Arbitrum network.

https://arbiscan.io

Solana Explorer

Official Solana blockchain explorer for verifying transactions, programs, tokens, and validator performance.

https://explorer.solana.com

Mintscan (Cosmos)

Block explorer for the Cosmos ecosystem covering IBC transactions, validator info, and governance across Cosmos chains.

https://www.mintscan.io

Revoke.cash

Check and revoke token approvals on your wallet to prevent drainer exploits.

https://revoke.cash

Honeypot.is

Simulate buy/sell on any token to detect honeypot scams before purchasing.

https://honeypot.is

Token Sniffer

Automated contract analysis that flags scam patterns, hidden mints, and sell restrictions.

https://tokensniffer.com

RugDoc

Community-driven DeFi risk assessments and scam identification database.

https://rugdoc.io

Pocket Universe

Transaction simulation browser extension that warns about malicious approvals before you sign.

https://www.pocketuniverse.app

Rabby Wallet

Non-custodial wallet with built-in transaction simulation and phishing protection.

https://rabby.io

MEV Blocker

Free RPC endpoint that protects your transactions from sandwich attacks and front-running.

https://mevblocker.io

Immunefi Bug Bounties

DeFi bug bounty platform with $150M+ in active security bounties across protocols.

https://immunefi.com

Rekt.news

Detailed post-mortem analyses of every major DeFi hack and exploit.

https://rekt.news

Code4rena

Competitive smart contract audit platform where security researchers find vulnerabilities.

https://code4rena.com

ScamSniffer

Real-time phishing and scam detection tool that monitors wallet-drainer campaigns across Web3.

https://scamsniffer.io

SlowMist

Blockchain security firm maintaining a hacked project database and threat intelligence feeds for the crypto industry.

https://www.slowmist.com

GoPlus Security

Open security infrastructure providing token detection APIs, malicious address databases, and approval risk scanning.

https://gopluslabs.io

De.Fi REKT Database

Comprehensive database of DeFi exploits, hacks, and rug pulls with loss amounts and attack vectors catalogued.

https://www.de.fi/rekt-database

DefiLlama

TVL tracker across DeFi protocols, chains, yields, and stablecoins. Open-source and ad-free.

https://defillama.com

L2Beat

Independent risk assessment and comparison of all Ethereum Layer 2 rollups.

https://l2beat.com

Token Terminal

Financial metrics, revenue, and token economics data for crypto protocols.

https://tokenterminal.com

ultrasound.money

Live ETH burn tracking since EIP-1559 with supply projections and issuance data.

https://ultrasound.money

Coinglass

Real-time funding rates, liquidation data, and open interest across all perp exchanges.

https://www.coinglass.com/FundingRate

Rated Network

Ethereum validator performance comparison by effectiveness, uptime, and MEV.

https://www.rated.network

Staking Rewards

Compare staking yields, validators, and reward calculations across 200+ PoS networks.

https://www.stakingrewards.com

CoinGecko

Token data including prices, market caps, supply figures, and verified contract addresses.

https://www.coingecko.com

Tally Governance

Browse active proposals, delegates, and voting across major DAO governance systems.

https://www.tally.xyz

Nansen

On-chain analytics platform with wallet labeling, smart money tracking, and token flow analysis.

https://www.nansen.ai

Glassnode

On-chain market intelligence with metrics like NUPL, SOPR, exchange flows, and miner behavior for Bitcoin and Ethereum.

https://glassnode.com

The Block Data Dashboard

Free crypto market data dashboard covering DEX volumes, stablecoin supply, NFT activity, and network metrics.

https://www.theblock.co/data

GeckoTerminal

Real-time DEX charts and pool data across 100+ chains, track new token launches and liquidity movements.

https://www.geckoterminal.com

DEX.guru

Multi-chain DEX trading terminal with real-time price data, wallet profiling, and liquidity pool analytics.

https://dex.guru

Ethereum.org Developer Docs

Official Ethereum Foundation documentation covering EVM, smart contracts, and protocol specs.

https://ethereum.org/en/developers/docs/

Solidity Documentation

Official programming language docs for writing Ethereum smart contracts.

https://docs.soliditylang.org

OpenZeppelin Contracts

Industry-standard audited smart contract libraries used across DeFi.

https://docs.openzeppelin.com/contracts/

EVM Opcodes Reference

Interactive reference of all EVM opcodes with gas costs and stack behavior.

https://www.evm.codes

Bitcoin Developer Guide

Official technical documentation for Bitcoin protocol and development.

https://developer.bitcoin.org/devguide/

Uniswap Docs

Technical documentation for the Uniswap decentralized exchange protocol (V2, V3, V4).

https://docs.uniswap.org

Aave Docs

Developer documentation for the Aave DeFi lending and borrowing protocol.

https://docs.aave.com/developers/guides/flash-loans

Chainlink Docs

Technical docs for the Chainlink decentralized oracle network.

https://docs.chain.link

EigenLayer Docs

Documentation for the restaking protocol securing additional services with staked ETH.

https://docs.eigenlayer.xyz

Flashbots Docs

Documentation for MEV infrastructure: Protect RPC, MEV-Boost, and MEV-Share.

https://docs.flashbots.net

Hardhat

Ethereum development environment for compiling, testing, deploying, and debugging smart contracts.

https://hardhat.org

Foundry Book

Documentation for Foundry, the fast Solidity testing framework with forge, cast, and anvil tools.

https://book.getfoundry.sh

Alchemy Docs

Developer documentation for the Alchemy node infrastructure platform, APIs, SDKs, and Account Abstraction tools.

https://docs.alchemy.com

Viem

TypeScript interface for Ethereum with first-class support for contract interactions, ENS, and wallet management.

https://viem.sh

Wagmi

React hooks library for Ethereum that simplifies wallet connection, contract reads/writes, and transaction management.

https://wagmi.sh

Infura Docs

Documentation for the Infura node infrastructure service providing JSON-RPC access to Ethereum and other networks.

https://docs.infura.io

thirdweb Portal

Full-stack Web3 development platform with SDKs, contract deployment tools, and wallet infrastructure documentation.

https://portal.thirdweb.com

Koinly

Crypto tax software supporting FIFO/LIFO/HIFO with exchange and DeFi integrations.

https://koinly.io

CoinTracker

Portfolio tracking and tax reporting with support for multiple cost basis methods.

https://www.cointracker.io

TokenTax

Crypto tax platform with DeFi transaction support and direct CPA filing.

https://tokentax.co

Token Unlocks

Track upcoming token vesting schedules and unlock events for major projects.

https://token.unlocks.app

CoinLedger

Crypto tax reporting software with automatic gain/loss calculations and direct integrations with TurboTax and H&R Block.

https://coinledger.io

ZenLedger

Tax reporting platform supporting DeFi, NFTs, and staking with IRS Form 8949 generation and CPA access.

https://www.zenledger.io

TaxBit

Enterprise-grade crypto tax and accounting platform used by exchanges for 1099 reporting and individual tax compliance.

https://taxbit.com

CoinPanda

Crypto tax calculator supporting 800+ exchanges and wallets with automatic transaction categorization and tax report generation.

https://www.coinpanda.io

Recap

UK-focused crypto tax tool calculating Capital Gains Tax for HMRC with exchange imports and DeFi tracking.

https://recap.io

Divly

European crypto tax platform covering tax calculations for Sweden, Finland, and other Nordic countries with local tax form generation.

https://divly.com