Crypto collateral verification

Verify Self-CustodiedCrypto Assets for Lending

Enable crypto-backed lending without custody risk. Accredifi provides cryptographic proof of ownership and balance verification for stablecoin collateral loans and digital asset underwriting.

The challenge

Using crypto as collateral without proper verification

Traditional proof-of-funds processes weren't built for self-custodied digital assets. Screenshots can be faked. Exchange statements don't cover cold storage. And requiring custody introduces counterparty risk.

Screenshots are unreliable

Wallet screenshots and balance images can be manipulated. Manual verification is time-consuming and still leaves room for fraud.

Custody creates risk

Requiring borrowers to transfer assets introduces custody risk, operational complexity, and regulatory burden for lenders.

Point-in-time blindness

One-time verification doesn't capture collateral movements. Funds can be moved immediately after verification without detection.

The solution

Cryptographic verification without custody

Accredifi enables lenders to verify crypto proof of funds for loans using cryptographic signatures. Validate ownership and balances without ever touching the underlying assets.

Cryptographic proof of ownership

Borrowers sign a unique challenge with their private key, cryptographically proving they control the wallet. No private keys are ever shared or exposed.

  • Verifiable on-chain
  • Cannot be forged
  • Keys stay with owner

Real-time balance validation

Query on-chain data to confirm actual holdings at the moment of verification. No reliance on self-reported balances or third-party statements.

  • Live blockchain data
  • Stablecoin support (USDC & USDT)
  • Multi-chain coverage

Time-bound verification

Each verification is timestamped and cryptographically signed. Set up recurring verification to monitor collateral throughout the loan lifecycle.

  • Configurable intervals
  • Threshold alerts
  • Audit trail included
Security

No custody means no custody risk

Accredifi is verification infrastructure, not a custodian. Borrowers retain complete control of their private keys and assets throughout the verification process.

Keys never leave the wallet
Private keys are used locally to sign challenges. They are never transmitted, stored, or accessible to Accredifi or any third party.
Zero fund movement
Verification happens without any asset transfer. Funds stay exactly where they are throughout the entire process.
User-controlled access
Borrowers explicitly consent to each verification and can revoke access at any time. Permissions are time-limited by default.
Ownership verified
Cryptographic signature validated
Balance confirmed
125,000 USDC verified on-chain
Verification timestamped
Feb 26, 2026 at 14:32 UTC
Custody statusUser-controlled
Keys exposedNever
Integration

Built for underwriting workflows

Integrate crypto collateral verification directly into your lending platform. API-first design means you can automate verification requests, receive real-time updates, and embed proofs into your existing systems.

For lending platforms

  • Embed verification requests in loan applications
  • Receive webhook notifications on completion
  • Set up automated recurring verification
  • Configure balance threshold alerts

For compliance teams

  • Generate audit-ready verification records
  • Timestamped, cryptographically signed proofs
  • Replace unreliable screenshot documentation
  • Support AML/KYC source of funds requirements
FAQ

Frequently asked questions

Accredifi uses cryptographic proofs to verify wallet ownership and balances. The borrower signs a message with their private key, proving control of the wallet, while our system queries on-chain data to confirm balances. At no point do funds move or does Accredifi take custody.

We currently support Bitcoin (BTC) and Ethereum (ETH), including ERC-20 tokens such as USDC, USDT, and DAI. Support for additional chains and assets is on our roadmap.

The wallet holder signs a unique, time-bound challenge message using their private key. This signature cryptographically proves they control the wallet address without exposing the private key. The proof is verifiable by anyone and cannot be forged.

Yes. Our API allows you to programmatically request verifications, receive webhook notifications when proofs are completed, and retrieve verification data for integration into your underwriting and risk systems.

You can request ongoing verification with configurable intervals. Accredifi will re-verify wallet balances at your specified frequency and notify you via webhook if balances fall below thresholds or if the user revokes access.

Accredifi provides timestamped, cryptographically signed verification records that document proof of ownership and balance at specific points in time. These records are suitable for audit trails and compliance documentation.

With recurring verification enabled, you'll be notified of balance changes. You can set balance thresholds that trigger alerts, allowing your risk team to respond to collateral movements in near real-time.

Accredifi offers a REST API for programmatic integration, webhook notifications for event-driven workflows, and a dashboard for manual verification requests. Most teams integrate within days using our documentation and SDKs.

Still have questions?

Contact our team

Built for crypto-backed lending

Why lenders choose Accredifi

No custody required

Verify collateral without holding funds. Borrowers retain full control of their keys while you get cryptographic proof of their holdings.

API-first integration

Embed verification directly into your lending platform. Automate proof requests, receive webhooks, and integrate with existing underwriting systems.

Compliance-ready

Generate timestamped, signed verification records suitable for regulatory requirements and audit documentation.

Borrower-controlled

Time-limited, revocable access. Borrowers approve exactly what they share and can revoke access at any time.

Enable crypto-backed lending without custody risk.

Verify self-custodied crypto collateral with cryptographic proof. Secure, auditable, and built for institutional lending workflows.