# UseBitcoin — everything bitcoin, live and free

> usebitcoin.app is a bitcoin-only site: a live dashboard (price, fees, mempool,
> halving countdown, network vitals), free on-chain alerts for legendary wallets
> (the Satoshi Alarm), and an educational library. All figures are rendered
> server-side into the HTML and refreshed nightly, so crawlers and language
> models always see real numbers. No ads, no altcoins, no signup.

## Live tools
- [Dashboard](https://usebitcoin.app/): BTC price, fees, mempool, halving, hashrate — live
- [Fees now](https://usebitcoin.app/fees/): sat/vB tiers with USD cost of a typical send
- [Sats converter](https://usebitcoin.app/sats-converter/): sats ⇄ BTC ⇄ USD/EUR/BRL at the live price
- [Halving countdown](https://usebitcoin.app/halving/): block-based countdown to block 1,050,000
- [Difficulty adjustment](https://usebitcoin.app/difficulty/): live retarget estimate
- [What if I'd bought](https://usebitcoin.app/what-if/): monthly DCA replayed against real prices since 2010
- [Mining calculator](https://usebitcoin.app/mining-calculator/): subsidy-only honest math vs live network

## Wallet Watch — the Satoshi Alarm
- [Overview + free alerts](https://usebitcoin.app/wallets/)
- [Satoshi's Fortune](https://usebitcoin.app/wallets/satoshi-coins/): ~1.1M BTC Patoshi cluster, swept live
- [The 1Feex wallet](https://usebitcoin.app/wallets/1feex/): 79,957 BTC from Mt. Gox, dormant since 2011
- [Binance cold wallet](https://usebitcoin.app/wallets/binance-cold/) · [Bitfinex cold wallet](https://usebitcoin.app/wallets/bitfinex-cold/) · [Genesis block](https://usebitcoin.app/wallets/genesis/)
- [Label verification methodology](https://usebitcoin.app/methodology/): confirmed vs attributed, two-source rule

## Learn
- [All articles](https://usebitcoin.app/learn/) · [Glossary](https://usebitcoin.app/learn/glossary/)
- Highlights: [the Patoshi pattern](https://usebitcoin.app/learn/patoshi-pattern/),
  [dormant wallets](https://usebitcoin.app/learn/dormant-bitcoin-wallets/),
  [moved ≠ sold](https://usebitcoin.app/learn/moved-not-sold/),
  [Mt. Gox](https://usebitcoin.app/learn/mt-gox-bitcoin/),
  [halving history](https://usebitcoin.app/learn/bitcoin-halving-history/)

## Data access
- Public JSON: [GET /api/wallets](https://usebitcoin.app/api/wallets) — legendary wallet registry with live balances
- WebMCP tools are registered on every page (bitcoin snapshot, wallet registry, alert subscription)
- Sitemap: https://usebitcoin.app/sitemap-index.xml