// SMART CONTRACT PROTOCOL

NO MORE
SCAMS

Contractly turns your verbal agreements into verifiable smart contracts. A mobile-first DApp for second-hand item transactions where social marketplace UX is backed by smart-contract escrow and dispute guarantees.

32%
Buyers scammed
$0
Third-party fees
100%
On-chain
Listing view with verified asset
Smart contract chat interface
Active trades dashboard
Seller inquiry log
Expanded contract details
Create account screen
Marketplace browse view
Meet and verify screen
Seller inquiry log
Marketplace browse view
Smart contract chat interface
Expanded contract details
Meet and verify screen
Active trades dashboard
Create account screen
Listing view with verified asset
Create account screen
Active trades dashboard
Meet and verify screen
Listing view with verified asset
Seller inquiry log
Marketplace browse view
Smart contract chat interface
Expanded contract details
// THE PROBLEM
32%
of second-hand buyers have been scammed
over the last two years.

Cash meetups.
No receipts.
No recourse.

Every day, people buy and sell second-hand items through social marketplaces. But there's no protection. Sellers get ghosted. Buyers receive counterfeits. Cash exchanges in parking lots leave both parties exposed.

Contractly makes second-hand meetups safer by turning a chat deal into a signed smart contract with escrow — replacing risky cash meetups with a verifiable, enforceable agreement on-chain.

RISK

VERBAL AGREEMENT

No proof. No protection. Just trust in a stranger.

→
EXPOSURE

CASH MEETUP

Physical meet with cash on hand. No verification of goods.

→
SECURED

CONTRACTLY

Smart contract with escrow. On-chain verification. Dispute resolution.

// HOW IT WORKS

FROM CHAT TO
CONTRACT

STEP 01

LIST & CHAT

List your item or find one on any marketplace. Start a conversation inside Contractly.

TX_ASSET_LISTIMGID:#892-X$12,500SECURE_COMMSONLINE // E2E_AWAIT_INPUT
STEP 02

SMART CONTRACT

Smart Chat AI drafts a smart contract from your agreement. Review terms, price, conditions — then both sides sign.

COMMS_LOGAIPARSERCONTRACT_GENSTATUS: DRAFTSIG_REQ_1EXECUTABLE
STEP 03

ESCROW LOCKS

USDC escrow automatically locks funds in the contract. No third party holds the money — it lives on-chain.

SMART_ESCROWLOCKED_FUNDS12,500 USDCESCROW_STATELOCKEDTRUSTLESS // ON-CHAIN
STEP 04

MEET & VERIFY

Meet at a verified exchange location. Inspect the item. Both parties confirm the handoff with on-chain signatures.

MEET_VERIFYPTY_A//BUYPTY_B//SELVERIFICATION_CHECKLOC_MATCH: TRUEID_VERIFIEDITEM_MATCHESCROW_LOCKHANDOFF_AUTHORIZED
STEP 05

FUNDS RELEASE

After both sides sign off, escrow releases automatically. If there's a dispute, decentralized arbitration steps in.

COMPLETESELLER_RX+12,500USDC_SETTLEDTX 0x8F...A1BUYER_RXITEM_SECURED
TRUSTLESSESCROWON-CHAINVERIFIEDDECENTRALIZEDSECURESMART CONTRACTSNO SCAMSUSDCTRANSPARENTTRUSTLESSESCROWON-CHAINVERIFIEDDECENTRALIZEDSECURESMART CONTRACTSNO SCAMSUSDCTRANSPARENT
// TECHNOLOGY

BlockchainWithoutTheComplexity

ONBOARDING

Smart Wallets & EOA

Supports Smart Wallets for the smoothest setup — passkey-based, no seed phrase. Or Advanced EOA for experienced crypto users. Choose your level.

UX

Plain Language Interface

Hides blockchain complexity behind plain language and role-based actions. You don't need to understand gas fees to use Contractly.

INTEGRITY

Verifiable Off-Chain Systems

Keeps off-chain systems (meetups, exchange agreements) verifiable against on-chain anchors. Every action can be independently verified.

UNIVERSAL

Open Trustless Protocol

Use Contractly in parallel with Facebook Marketplace, OfferUp, Craigslist, Nextdoor. Contractly is the trust layer — your marketplace is the discovery layer.

WORKS WITH:FACEBOOK MARKETPLACEOFFERUPCRAIGSLISTNEXTDOOR
// EXPERIENCE

DESIGNED FOR HUMANS

A clean, familiar marketplace experience, backed by the power of blockchain. No jargon. No confusion.

// PROTOCOL FEATURES

BUILT FOR
TRUST

Every feature is designed around one principle: making second-hand transactions as trustworthy as buying from a store, without the middleman.

🔒
SMART ESCROW

Automatic Escrow

Smart Contracts created and deployed from agreed terms in chat. Automatic escrow — no third parties hold the funds.

📊
ON-CHAIN PROOF

Every Action Documented

Every action is documented on-chain. Immutable, transparent, verifiable by both parties at any time.

⚖️
DISPUTE RESOLUTION

Decentralized Arbitration

In case of conflict, funds remain in the smart contract until decentralized arbitration steps in. No bias.

💳
FLEX PAYMENTS

Multiple Payment Modes

USDC escrow (recommended), cash-at-meetup, or a hybrid. Choose what works for your deal.

🛡️
DUAL PROTECTION

Escrow Protects Both Sides

Money moves only after the agreed checks and signatures. Buyer and seller are both covered.

📍
MEETUP SECURITY

Delivery-Oriented Architecture

Built around securing meetups and eliminating no-shows. The system is designed for real-world exchange.

👛
WALLET OPTIONS

Smart or Advanced Wallets

Smart Wallets for the smoothest setup. Advanced EOA for experienced crypto users. Your choice.

💬
PLAIN LANGUAGE

No Blockchain Jargon

Hides blockchain complexity behind plain language and role-based actions. It just works.

🔗
HYBRID VERIFIABLE

Off-Chain Meets On-Chain

Off-chain systems (meetups, exchange agreements) are verifiable against on-chain anchors. Trust, verified.

✅
VERIFIED EXCHANGE

Witnessed Handoffs

For higher-risk trades, use real local venues to witness the handoff and sign objective results.

🌐
OPEN PROTOCOL

Works With Everything

Open trustless protocol usable in parallel with Facebook Marketplace, OfferUp, Craigslist, Nextdoor.

🤖
AI-POWERED

Smart Chat Contracts

Smart Chat automatically drafts smart contracts from the chat context using AI for users to review and send.

// SOCIAL IMPACT

BEYOND
TRANSACTIONS.
A MOVEMENT.

Social impact comes from making reuse easier and more trusted. When people feel safer buying second-hand, they are more likely to choose reuse instead of buying new — which supports waste reduction and affordability.

01
↓
CONSUMPTION

REDUCE WASTE

When trust exists in second-hand markets, more people choose reuse over buying new. Less manufacturing. Less packaging. Less landfill.

02
↑
AFFORDABILITY

INCREASE ACCESS

Affordable second-hand goods become accessible to more people when scam risk is eliminated. Quality items at fair prices — for everyone.

03
0
BARRIER

CRYPTO FOR ALL

The passkey-based wallet lowers the barrier so non-crypto users can participate, then learn the tech gradually as they complete deals.

“When people feel safer buying second-hand, they choose reuse instead of buying new. That’s how trust changes markets.”

— THE CONTRACTLY THESIS
// EARLY ACCESS

JOIN THE
PROTOCOL

Be the first to experience secure second-hand trading. Sign up for early access and help shape the future of trusted commerce.

NO SPAM. PROTOCOL UPDATES ONLY.