STARKNET STEALTH ADDRESSES

Stealth address demo: recipient unlinkability (amounts remain public)

Create stealth addresses and complete the full flow for under 1 cent (est.). 0.0477 STRK ≈ 0.0038 USDC at 0.08 USDC/STRK.

Comments: Telegram @espejelomar, X @omarespejel, GitHub @omarespejel, omar@starknet.org

Sepolia Testnet

Connect your wallet to interact with contracts

Wallet Detection Debug:

How it works (TL;DR)

Recipient registers a meta-address (public keys) on-chain once.
Sender derives a unique stealth address with ECDH and announces it.
Recipient scans announcements, derives a one-time spend key, and spends.

Privacy Notes

Announcements are permissionless and can be spammed.
View tags speed up scanning but don’t hide sender addresses.
Amounts remain visible without a privacy layer (e.g., Tongo).

Receive (Alice)

Send (Bob)

Scan

Stealth Payment Flow (4 Steps)

Lookup

Get recipient's key

→

Generate

Create stealth addr

→

Deploy

Create account

→

Fund

Send STRK

Privacy: You know who you're paying, but observers cannot link this payment to other payments the recipient receives.

Send via Tongo (optional amount privacy)

1 Enter Recipient's Meta-Address

Get the recipient's public key from the registry or paste it directly.

Recipient Starknet Address (to lookup)

Or paste Spending Key X directly

Spending Key Y

2 Generate Stealth Address

Compute a one-time stealth address using ECDH key exchange.

3 Deploy Account & Announce

Deploy the stealth account on-chain and publish the announcement.

Recipient Setup (One-Time)

Register your meta-address so senders can create private payments to you.
Share your Starknet address with senders - they look up your meta-address from the registry.

Privacy note: The sender knows they're paying you, but blockchain observers cannot link multiple payments to you - each goes to a unique stealth address.

1 Generate Your Meta-Address

Generate a new key pair. Save the private key securely - you'll need it to claim payments.

2 Register Meta-Address On-Chain

Publish your meta-address to the registry so senders can find you.

Your Spending Key X

Your Spending Key Y

Scan Payments

Use your private key to find stealth payments sent to you.
The scanner checks announcements and computes which addresses you control.

1 Enter Your Private Key

Your spending private key is used to check which announcements are yours.

Your Spending Private Key

From Block (optional, reduces scan time)

2 Results

No scan performed yet. Enter your private key and click Scan.

Cost Estimates

Based on Sepolia measurements (2026-01-22) and mainnet gas prices at time of estimate. USDC estimates assume 0.08 USDC/STRK. Fees vary with network conditions.

Sepolia Actual (STRK)

Step	Fee
Register	0.010747
Deploy	0.012017
Announce	0.009027
Fund	0.009112
Spend	0.007832

Mainnet Estimate (STRK)

STRK price (USDC):

Edit to current price

Step	Fee (STRK)	USDC (est.)
Register	0.010427	—
Deploy	0.011627	—
Announce	0.008945	—
Fund	0.008937	—
Spend	0.007778	—
Total	0.047713	—

StealthRegistry

0x30e391e0...c1f0
View on Explorer

StealthAccountFactory

0x2175848f...5085
View on Explorer