this post was submitted on 18 Mar 2026
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Bitcoin

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Bitcoin is the currency of the Internet: a distributed, worldwide, decentralized digital money. Unlike traditional currencies such as dollars, bitcoins are issued and managed without any central authority whatsoever: there is no government, company, or bank in charge of Bitcoin. As such, it is more resistant to wild inflation, corrupt bankers and politicians. With Bitcoin, you can be your own bank.

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I put together a quick sats calculator tool and a free API endpoint for converting USD to satoshis.

Web tool: http://5.78.129.127/sats

API (no signup needed):

curl "http://5.78.129.127/api/crypto/sats?usd=10"

Returns sats equivalent, BTC fraction, and current BTC price in JSON. Updates in real-time from CoinGecko.

Also has endpoints for checking individual coin prices:

curl http://5.78.129.127/api/crypto/price/bitcoin

Free, no API key needed for basic use. If you need higher rate limits, paid plans accept Lightning.

devtoolkit@coinos.io

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