# RFC: Payment URI scheme for Neptune

**URL:** <https://talk.neptune.cash/t/rfc-payment-uri-scheme-for-neptune/362>\
**Category:** Development\
**Created:** [August 3, 2026, 9:29pm UTC](https://talk.neptune.cash/t/rfc-payment-uri-scheme-for-neptune/362 "2026-08-03T21:29:58Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![LostInTranslation](https://talk.neptune.cash/letter_avatar_proxy/v4/letter/l/e5b9ba/32.png) [@LostInTranslation](https://talk.neptune.cash/u/LostInTranslation)\
**Post date:** [August 3, 2026, 9:29pm UTC](https://talk.neptune.cash/t/rfc-payment-uri-scheme-for-neptune/362/1 "2026-08-03T21:29:58Z")

</div>

Edit: RFC moved to GitHub as NIP:

> <https://github.com/Neptune-Crypto/nips/pull/2>
>
> Adds NIP-002, a payment URI scheme for payment links, QR codes, and deep-linking…, following up on the RFC discussion in Neptune-Crypto/neptune-core#959. Format follows NIP-001 (#1).
> 
> Notes for reviewers:
> 
> \- The scheme is \`neptunecash:\` rather than the \`neptune:\` originally proposed in the RFC. Open question 2 in the document explains the change: the name "Neptune" is now contested by a fork, and OS-level URI handler registration is a single global namespace.
> \- The three open questions each carry a proposal and are the main items feedback is sought on.
> \- The test vectors are marked provisional: they are hand-derived and will be re-verified once the reference parser exists.