Private key management made simple. Create wallets, sign transactions, and automate onchain actions through one API.
Private payments that leave no trail
Stage
Not given
Not given
Founded
2022
Not given
Based in
US
Not given
Pricing model
Freemium
Free
Pricing
Pay as You Go: 25 free signatures per month, then $0.10 per signature. Pro: $99/mo with $0.05 per signature. Enterprise: Custom pricing as low as $0.0015 per signature. Transaction Management fees charged per-transaction basis when successfully executed onchain.
Flat fees per transaction: 0.00015 ETH / BNB for native coins, 1.00 for stablecoins; 0.35% rate applied to all assets. Pool minimums: 0.0005 native coin or 1.00 stablecoin.
Key features
Non-custodial wallet creation for users, businesses, and AI agents
Sub-100ms transaction signing latency
Programmable policy engine for access control and spending limits
Multi-authentication methods including passkeys, OAuth, email, and API keys
Hardware-isolated secure enclaves for key management
Multichain support across EVM, Solana, Bitcoin, and more
Gas sponsorship for transaction fees
Open-source SDKs and REST APIs
99.9% uptime infrastructure with high availability
SOC 2 Type II compliance and code verifiability
Shield funds into private pools with no fixed denominations
Send privately to any address with relayer paying gas
Swap inside pools on Uniswap V3 and re-shield output
Bridge across chains via NEAR Intents without revealing recipient on origin chain
Recover funds from signature alone if any step fails
Private account derived from single wallet signature
Support for 5 EVM chains plus Solana
CLI for private payments via command line
What makes it different
Verifiable and open-source with code attestation and reproducible builds
Hardware enclave-based signing instead of MPC or HSM approaches
Built by the team that created Coinbase Custody
50-100ms transaction signing latency with 0ms client-side signing
Fully non-custodial ensuring users retain complete control of keys
No fixed denominations or waiting periods for anonymity
Completely non-custodial with no operator control over funds
Relayer pays gas so paying wallet never appears on-chain after deposit
All keys and proofs stay in browser, nothing sent to server
Intent-based bridges hide recipient from origin chain
Turnkey
Blackpool