Silent Payments Indexer

A public BIP-352 silent-payments scanning service, served straight from our own Bitcoin full node — no third-party backend. Point a compatible wallet at one of the two endpoints below to detect silent-payments sent to you.

Why you need this: silent payments let someone pay a single static address you publish, with every payment landing at a unique on-chain output. Detecting those outputs means scanning every block for cryptographic "tweaks" — ordinary Electrum servers (electrs, Fulcrum) cannot do this. That's what this indexer is for. Sending to a silent-payment address needs no server at all.

Choose your connection

BlindBit Trustless

Client-side filtering — your keys never leave your device.

Endpoint

https://sp.mineracks.com

Wallets: Silentium, Silent Amulet, BlindBit

Setup: in your wallet's settings, set the silent-payments / BlindBit indexer URL to the endpoint above. That's it.

Privacy: the server only serves public tweak data; your wallet downloads it and matches outputs locally with your scan key. We never see your keys or which payments are yours.

Frigate Convenient

Remote scanner for Sparrow & Electrum-protocol wallets.

Endpoint (Electrum over SSL)

silentpay.mineracks.com : 50002

Wallets: Sparrow 2.5+, Electrum-SP clients

Setup (Sparrow): Settings → Server → Private Electrum; enter the host and port 50002, leave SSL on, accept the certificate fingerprint when prompted, then create a Silent Payments wallet.

Privacy trade-off: see below — this mode sends your scan key to the server.

Security trade-offs — read this

In both options your spend key never leaves your wallet, so there is no custody risk either way — we can never move your funds. The difference is purely about privacy: who can see which payments are yours.

BlindBit (Trustless)Frigate (Remote scanner)
Scan keyNever leaves your deviceSent to the server (held in RAM only, never written to disk)
What we could seeNothing — only that some client requested public tweak dataYour incoming silent payments, for the duration of your scan session
Spend key / fundsSafe — never sharedSafe — never shared (only the spend public key is sent)
Best forMaximum privacy; self-sovereign usersConvenience, light/mobile clients, Sparrow
CostMore bandwidth (you download tweaks)Light on the client; the server does the work

For the strongest privacy, run BlindBit (or your own indexer). Frigate is offered because it's what Sparrow uses and it's far lighter for mobile — but you are trusting this operator with your receiving privacy while you scan. Both endpoints are served from our own node, never a third party.

Hardware wallet support

The BitBox02 (Bitcoin-only edition) is the first hardware wallet able to make silent payments — the device itself helps construct the payment output (your private keys are needed to derive the recipient's output), so the secret stays on the hardware. That complements this service: BitBox02 to send to silent-payment addresses, this indexer to receive/detect them.

BitBox02 — Bitcoin-only edition →

About this service

Operated by mineracks · self-hosted Bitcoin infrastructure · Brisbane, AU