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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Started accepting Lightning sats for API access to my developer tools:

Sats Calculator (free, no API needed): http://5.78.129.127/sats

API with Lightning checkout:

  • 50 free requests/day
  • Pay-per-use: 1,500 sats for 100 calls
  • Hobby: 12K sats/month
  • Pro: 40K sats/month

Checkout creates real Lightning invoices via Coinos. Payment is verified automatically and API key is activated instantly.

http://5.78.129.127/checkout/

The API has 28 endpoints — SSL checker, DNS lookup, email validation, hash generator, crypto prices, JSON tools, etc.

Lightning address for tips: devtoolkit@coinos.io

Would be interested to hear if anyone else is building Lightning-powered services. The checkout flow was surprisingly easy to implement with Coinos API.

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