Free, open-source, self-hosted payment software that lets merchants receive Bitcoin and Lightning payments directly to their own infrastructure.
BTCPay Server is best understood as part of a system rather than as an isolated definition. Its related coordinates show the mechanisms, incentives and historical records that give the term practical meaning.
BTCPay Server belongs to the documented history and social layer around Bitcoin. Primary records can establish what was published, built or decided; motives, influence and later interpretation should remain separate from those verifiable facts.
Understanding BTCPay Server helps distinguish a verifiable Bitcoin mechanism or historical record from slogans, products and market narratives.
For the clearest picture, read this entry together with Bitcoin payment processor, Bitcoin point of sale, Self-custody, Lightning Network, Merchant adoption. The reverse links also lead from Bitcoin payment processor, Bitcoin point of sale, Bitcoin donations.
Linked to related atlas coordinates
Grounded in source data
Explains function and trade-offs
Part of the open Bitcoin knowledge graph