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PayJoin Dev Kit Review

Library for implementing PayJoin (P2EP) transactions to enhance Bitcoin privacy.

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Why We Recommend PayJoin Dev Kit

Fully open-source. Implements BIP 78 (PayJoin V1) and BIP 77 (PayJoin V2). Funded by OpenSats and HRF.

Best For

Ideal for wallet and exchange developers looking to implement PayJoin for enhanced transaction privacy. Perfect for businesses wanting to break common input ownership heuristics and improve customer privacy.

Services & Features

  • PayJoin V1 (BIP 78) support
  • PayJoin V2 (BIP 77) serverless protocol
  • Rust library with bindings
  • Sender & receiver implementations
  • Transaction cut-through

Considerations

Requires both sender and receiver to support PayJoin. Not widely adopted yet.

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