x0x1

Calldata-as-a-Service

DeFi yield, verified on-chain, signed on your hardware.

BUILD
→
TEST
→
VERIFY
→
SIGN
→
RE-CHECK
→
EARN
Safer than any browser wallet.
Request Beta Access

What if they had x0x1?

$0

preventable losses.

Bybit

Feb 2025
$1.5B
Attack vector

Blind signing — signers couldn't verify transaction payload

x0x1 prevention

Full calldata decode + state diff before signing

rekt.news → PREVENTED

Operational risk → zero.

Don't be next

Data: rekt.news

Real strategies. Real calldata. Verified on-chain.

Verified opportunities. Right now.

True self-custody. You hold the position — not even a contract holds your keys.

Morpho × Pendle Loop

Leveraged yield · ETH
+7.75%

NET APY

Seed $13,573
Position $50,221
Health 1.178
Duration 28 days
$ USDC lending in isolated Morpho market. APY from borrow demand + COMP rewards. No leverage, no IL. Verified from vault contract.
Get this calldata
See full pipeline docs →

Three steps. Full control.

Click to expand each step.

01

Scan

29 adapters read APY from contracts

Protocol adapters read APY directly from smart contracts. No aggregator APIs. No cache.

Morpho says 2980%. We compute 53%. That's a 56× discrepancy.

02

Build

Calldata assembled, simulated, verified

Cross-checked against 523+ exploits. Simulated on a real blockchain fork. Full state diff before you see anything.

Fails on fork? Self-healing pipeline learns from on-chain TX history. Retries until it works.

Functiondeposit(uint256)
Amount10,000 USDC
Expected+29% APY
SimulationPASSED
03

Sign

Your keys, your hardware, your call

Air-gapped hardware. Keys never touch a networked machine. Post-sign: byte-by-byte comparison. Mismatch = HALT.

Broadcast only after double verification on a fresh fork.

See Zypher hardware →
Calldata ready
↓
You review & sign
↓
Post-sign verify
↓
Broadcast

How it's different

Not another yield aggregator. A verification layer.

APY source

✗

Aggregator APIs — stale, error-prone

✓

Direct contract reads via archive RPC

TX safety

✗

Sign what UI shows, hope it matches

✓

12-stage pipeline + fork simulation

Key custody

✗

Hot wallet, browser extension

✓

Air-gapped hardware, optocoupler isolation

Exploit DB

✗

Check Twitter, maybe

✓

Trained on 523+ historical exploits

Failed TX

✗

Error message, retry manually

✓

Self-healing pipeline, auto-retry

Supported protocols & chains

Ethereum Arbitrum Base Safe{Wallet} Morpho Pendle Euler Aave
Pre-audit · Beta access · Self-custody only

Two paths. Same principle: your keys, your funds.

Tier 1

Signal

Verified yield intelligence.

  • > Yield board with on-chain verified APYs
  • > Basic calldata for single-step strategies
  • > Works with MetaMask, Ledger, Safe, Rabby
$99 /mo
Join Beta
Popular
Tier 2

Concierge

Full calldata pipeline.

  • > Everything in Signal, plus:
  • > Multi-step strategy calldata (leveraged, LP, multi-protocol)
  • > Continuous monitoring and rebalance calldata
  • > Safe Signing with full state diff review
Per-calldata: 0.2 - 2% by complexity
Simple deposit0.2%
Multi-step strategy0.8%
Flash loan loop1.5%
Talk to Us

Your keys, your hardware, your broadcast.

$50,000
$10K$500K
Calldata fee$450
Expected yield15%/yr → $7,500
Your cost vs. your yield
FeeNet yield

You keep custody. We sell intelligence.

Continuation is voluntary. If the calldata earns — you decide whether to continue. We continue providing it — if you continue supporting us. No contracts. No obligations. Full terms →

Stop guessing APYs. Start verifying.

Beta spots are limited. Early access for DeFi power users.

Request Beta Access

Self-custody always. We never ask for private keys.
Products Zypher Docs Security Pricing
x0x1.xyz

x0x1 does not custody assets, execute transactions, or provide financial advice. All calldata is simulation-verified software output. Users sign and broadcast independently. Terms of Service