Mercury
@shrug/mercury · v2026.08.18.1
Mercury banking API (/api/v1) read-only source model: discover accounts and snapshot transactions as the canonical BankTxn[] contract (settled-only by default). Bearer token auth (vaulted, read-only token — no IP allowlist). The amount-sign convention (negative == outgoing debit) lives in one tested decider, verified against a live response.