Self-Custody Payments: Users Sign, Funds Stay Secured
Self-Custody Payments: Users Sign, Funds Stay Secured
Self-custody is NAKA's core principle. For the first time, a payment system enforces real-time, on-chain signatures for every transaction. No custodial wallets. Complete user control, global acceptance.
NAKA provides the stablecoin-native infrastructure stack that makes payments programmable, instant, and universally accepted.
True self-custody
On-chain verification
Global card acceptance
NAKA VS OTHERS
NAKA VS OTHERS
NAKA VS OTHERS
What True Self-Custody Means
With NAKA, every single transaction requires a cryptographic signature from the user’s private key, stored securely inside the application environment.
HOW IT WORKS
HOW IT WORKS
HOW IT WORKS
From Self-Custody to Checkout
Engineered at the intersection of Web3 and global card networks, NAKA turns self-custodied value into everyday card acceptance.
01
02
03
04
Request triggered
A Card Network authorization request is triggered.

NAKA Checks balance
NAKA checks the user’s balance directly on-chain.

User signs transaction
The user’s private key signs the transaction.

Transaction approved
Funds move only after the user approves, not before.

01
02
03
04
Request triggered
A Card Network authorization request is triggered.

NAKA Checks balance
NAKA checks the user’s balance directly on-chain.

User signs transaction
The user’s private key signs the transaction.

Transaction approved
Funds move only after the user approves, not before.

01
02
03
04
Request triggered
A Card Network authorization request is triggered.

NAKA Checks balance
NAKA checks the user’s balance directly on-chain.

User signs transaction
The user’s private key signs the transaction.

Transaction approved
Funds move only after the user approves, not before.

No shared custodial pool
Key never leaves device
On-chain execution only
No shared custodial pool
Key never leaves device
On-chain execution only
No shared custodial pool
Key never leaves device
On-chain execution only
WHY IT MATTERS
WHY IT MATTERS
WHY IT MATTERS
Why Self-Custody Matters
User Trust
In markets where institutions freeze accounts, delay withdrawals, or block crypto operations, users prefer direct control over their own funds today.
User Trust
In markets where institutions freeze accounts, delay withdrawals, or block crypto operations, users prefer direct control over their own funds today.
User Trust
In markets where institutions freeze accounts, delay withdrawals, or block crypto operations, users prefer direct control over their own funds today.
Security
If a custodial provider is breached, user funds can be drained; with NAKA, no attacker can spend without the user’s key signature.
Security
If a custodial provider is breached, user funds can be drained; with NAKA, no attacker can spend without the user’s key signature.
Security
If a custodial provider is breached, user funds can be drained; with NAKA, no attacker can spend without the user’s key signature.
Regulatory Clarity
Self-custody keeps assets off issuer books, so partners avoid running custodial businesses unless they choose intentionally.
Regulatory Clarity
Self-custody keeps assets off issuer books, so partners avoid running custodial businesses unless they choose intentionally.
Regulatory Clarity
Self-custody keeps assets off issuer books, so partners avoid running custodial businesses unless they choose intentionally.
GLOBAL ACCEPTANCE
GLOBAL ACCEPTANCE
GLOBAL ACCEPTANCE
Global Acceptance Without Sacrificing Control
Conventional self-custody solutions break the moment you try to use them in the real world. NAKA’s design solves this by combining:
TRADITIONAL CARD NETWORK

Worldwide acceptance
Works wherever major card networks are supported globally

Worldwide acceptance
Works wherever major card networks are supported globally

Worldwide acceptance
Works wherever major card networks are supported globally

Online, in-store, and ATM use
Pay online, in-store, at ATMs, plus Apple Pay.

Online, in-store, and ATM use
Pay online, in-store, at ATMs, plus Apple Pay.

Online, in-store, and ATM use
Pay online, in-store, at ATMs, plus Apple Pay.

Standard clearing and settlement
Uses existing card network clearing and settlement systems.

Standard clearing and settlement
Uses existing card network clearing and settlement systems.

Standard clearing and settlement
Uses existing card network clearing and settlement systems.
SELF-CUSTODY ENFORCEMENT
User signs every payment
Every transaction is approved directly by the user’s key.
User signs every payment
Every transaction is approved directly by the user’s key.
User signs every payment
Every transaction is approved directly by the user’s key.

On-chain funds
Funds remain on-chain until the user authorizes movement.

On-chain funds
Funds remain on-chain until the user authorizes movement.

On-chain funds
Funds remain on-chain until the user authorizes movement.

No intermediaries
No third party can touch or control user balances.

No intermediaries
No third party can touch or control user balances.

No intermediaries
No third party can touch or control user balances.
BENEFITS
BENEFITS
BENEFITS
Partners benefit as Self-custody becomes
A differentiator no competitor can match
A differentiator no competitor can match
A differentiator no competitor can match
A security model aligned with Web3 ethos
A security model aligned with Web3 ethos
A security model aligned with Web3 ethos
A compliance structure that avoids obligations
A compliance structure that avoids obligations
A compliance structure that avoids obligations
A user experience that feels truly on-chain
A user experience that feels truly on-chain
A user experience that feels truly on-chain