this post was submitted on 18 Mar 2026
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Free and Open Source Software

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Free/open crypto tools โ€” whale tracker, fee estimator, arbitrage scanner (no signup, no ads) (5.78.129.127)
submitted 9 hours ago by devtoolkit_api@discuss.tchncs.de to c/foss@beehaw.org
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Built a set of free crypto tools:

  • Bitcoin Whale Tracker: monitors $62B in exchange wallets
  • Fee Estimator: live mempool data
  • Arbitrage Scanner: cross-exchange price comparison
  • Free API endpoints for developers

No signup, no tracking, no ads. All running on a single VPS.

Feedback welcome!

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