01 / CORE FEATURE

Real-Time Mempool Surveillance

Our monitoring infrastructure watches the Bitcoin mempool 24/7, scanning for any transaction that involves your watched addresses. The moment activity is detected, you're notified instantly.

  • Instant detection Transactions are detected as soon as they enter the mempool
  • Zero false negatives Our redundant node infrastructure ensures no transaction goes unnoticed
  • Full descriptor support Monitor single addresses, xpubs, or complex miniscript descriptors
  • Transaction classification Automatically categorize incoming, outgoing, and internal transfers
Instant detection Zero false negatives Descriptor wallets
Real-Time Monitoring
02 / PREMIUM FEATURE

Theft Shield Protection

The ultimate defense against Bitcoin theft. Pre-authorize recovery transactions that can outbid attackers using RBF, automatically sweeping your funds to a safe wallet before thieves can confirm their transaction.

  • Pre-signed PSBTs Create and store signed recovery transactions before you need them
  • Automatic RBF response When theft is detected, broadcast a higher-fee replacement instantly
  • Safe wallet sweep Funds are automatically sent to your pre-configured recovery address
  • Configurable triggers Set conditions for when Theft Shield activates based on your preferences
RBF-enabled Pre-signed PSBTs Automatic response
Theft Shield Protection
03 / ARCHITECTURE

Non-Custodial Architecture

Your private keys never leave your hardware. Vigil monitors your wallets using only public information—xpubs and descriptors. All signing happens client-side, ensuring true self-sovereignty.

  • Zero key exposure We never see, store, or have access to your private keys
  • Client-side signing All Theft Shield PSBTs are signed locally on your device
  • Watch-only monitoring Monitor using xpubs or output descriptors only
  • Hardware wallet compatible Works with Coldcard, Ledger, Trezor, and other signing devices
Zero knowledge Client-side signing Hardware wallets
Non-Custodial Architecture
04 / NOTIFICATIONS

Multi-Channel Alerts

Get notified your way. Configure alerts across multiple channels and customize notification preferences per wallet, per event type. Never miss important activity.

  • Email notifications Detailed transaction alerts delivered to your inbox
  • Nostr DMs Receive encrypted alerts directly to your Nostr identity
  • SMS alerts Critical notifications via text message (coming soon)
  • Customizable rules Set thresholds, filter by amount, and configure per-wallet preferences
  • Confirmation tracking Get notified when transactions reach your chosen confirmation threshold
Instant delivery Customizable rules Confirmation alerts
Multi-Channel Alerts
05 / PRIVACY

Zero-KYC Anonymous Accounts

No government ID. No selfies. No personal information required. Create an account with just an email address, or go fully anonymous with Nostr authentication.

  • No ID verification We never ask for government documents or identity proof
  • Email optional Use a pseudonymous email or skip it entirely with Nostr login
  • No tracking Minimal data collection, no analytics, no third-party trackers
  • Bitcoin payments Pay anonymously with Bitcoin for complete financial privacy
No KYC required Anonymous by default Bitcoin payments
Zero-KYC Anonymous Accounts
06 / INTEGRATION

Nostr-Native Integration

Built for the decentralized web. Sign in with your Nostr identity using NIP-07 browser extensions. Receive encrypted alerts via Nostr DMs. No email required.

  • NIP-07 authentication Sign in with Alby, nos2x, or any NIP-07 compatible extension
  • Encrypted DM alerts Receive notifications as encrypted Nostr direct messages
  • Sovereign identity Your npub is your identity—no email or password needed
  • Relay flexibility Configure your preferred relays for alert delivery
NIP-07 auth Nostr DM alerts Decentralized
Nostr-Native Integration

Ready to Protect Your Bitcoin?

Start monitoring your wallets in under 60 seconds.
No KYC. No personal data. Total anonymity.