Musqet
- Name: Musqet
- URL: https://musqet.tech/
- Category: Bitcoin merchant-operations platform / retail EPOS and checkout infrastructure / Lightning payment-handler specification author
- Tags: bitcoin-ecosystem
- Summary: Musqet is a Bitcoin merchant-operations stack with EPOS ambitions. The useful part is the operator bundle — retail checkout, stock and loyalty tooling, optional local-currency settlement, terminal integration, and a Lightning payment-handler spec — not some new payments primitive.
- What it does:
- Sells a payment and EPOS platform for retail and hospitality businesses that want to accept both card and Bitcoin payments across online and in-person channels
- Says Bitcoin payments can settle either in crypto or in local currency, suggesting a merchant-operations posture rather than hobbyist wallet tooling
- Positions its EPOS surface as broader than payments alone, covering orders, stock control, customer communication, and loyalty workflows
- Authored a public UCP Lightning payment-handler specification covering BOLT12 offers, LNURL-pay / Lightning Address, and provider-mediated invoice APIs
- Standardizes those handler profiles around a shared SHA-256 preimage credential for Lightning settlement proofs in UCP checkouts
- Maintains a public React Native PAX-device library, which is a useful clue that the team is also touching payment-terminal integration rather than operating only at the protocol-spec level
- Key claims:
- The homepage says Musqet provides “seamless card and Bitcoin payments” for online and retail businesses and frames the company around unified operations rather than one payment rail
- The site says its EPOS platform handles payments, orders, stock control, customer communication, and loyalty, which makes the product look more like merchant infrastructure than a narrow checkout widget
- The same page says businesses can accept Bitcoin as easily as cards and settle in either crypto or local currency, reinforcing that Musqet is aimed at day-to-day merchant operations
- The
ucp-lightning-specREADME says Musqet’s payment-handler specification targets UCP checkouts and supports three profiles:com.musqet.bolt12,com.musqet.lnurl-pay, andcom.musqet.invoice-api - The full specification says those profiles are payment-provider-neutral and all produce the same credential: a SHA-256 preimage proving HTLC settlement, which is a strong sign that Musqet is participating in machine-readable commerce interoperability rather than only shipping merchant UI
- The GitHub org describes itself simply as “A Bitcoin Company,” and its public repos include both the UCP Lightning spec and a React Native PAX device library, which together suggest a stack spanning merchant hardware and protocol-level payment flows
- Whitepaper: No canonical standalone Musqet whitepaper or litepaper surfaced in this pass. The clearest current sources of truth were the official product site, the Musqet GitHub organization, and the public
ucp-lightning-specrepository; see../whitepapers/musqet-primary-sources-2026-05-03.md. - Sources:
Internal linkages
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Best upward reads: btcpay-server and blink.
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Last reviewed: 2026-05-28 UTC