Use only the official links below. No real recovery asks for your seed phrase or private key. If anyone offers to recover funds for you, it is a scam.

1. USDC burned but not minted

   Circle CCTP

   $5 · 1 position

   USDC was burned on one chain through Circle CCTP but the matching USDC was never minted on the destination chain. Circle can still sign it, so it can be completed.

   1. Find the burn transaction hash on the source chain.
   2. Get the signed attestation for it from Circle's attestation API (see the Circle CCTP docs).
   3. On the destination chain, call receiveMessage(message, attestation) on the MessageTransmitter contract. You pay the gas fee. USDC goes to the recipient.

   Circle CCTP docs (opens in a new tab)Official docs (opens in a new tab)

2. zkSync Lite balance not claimed

   $3 · 1 position

   zkSync Lite was shut down on 2026-05-04. Remaining balances are claimable on Ethereum through a claim contract and a withdrawal portal. Your account is on that list and has not claimed.

   1. Open the zkSync Lite withdrawal portal and connect the wallet that owned the account.
   2. The portal finds your address in the final state, builds the proof and sends the claim. Follow its prompts.
   3. Confirm the Ethereum transaction. Tokens go to your L1 address. Matter Labs sponsors gas for the first 100,000 withdrawals.

   zkSync Lite withdrawal portal (opens in a new tab)Official docs (opens in a new tab)

3. dYdX v3 balance

   $2 · 1 position

   dYdX v3 was shut down and its exchange was set to 'frozen' on Ethereum. Your USDC can still be taken out through the escape hatch, or withdrawn if already released.

   1. Open dYdX's v3 sunset post and use the Escape Hatch link in its last update. It is hosted by an independent third party.
   2. Escape needs a proof for your stark key and position. The page builds it; the escape call goes to StarkPerpetual 0xD54f502e184B6B739d7D27a6410a67dc462D69c8.
   3. Then call withdraw from your registered Ethereum address to receive the USDC. You pay Ethereum gas.

   dYdX StarkPerpetual contract (opens in a new tab)Official docs (opens in a new tab)

4. Polygon zkEVM balance

   $1 · 2 positions

   Polygon zkEVM's sequencer stopped on 1 July 2026. Wallet-held funds not bridged before then can be claimed on Ethereum in a claim UI. Polygon treats unclaimed assets as abandoned after 2027-12-31.

   1. Open the Polygon zkEVM claims site and connect the wallet that held the funds.
   2. Pick your balances and send the claim transaction on Ethereum.
   3. Funds locked inside DeFi contracts are not auto-migrated. Ask Polygon through the forum post.

   Official bridges for the chains your positions are on:

   • Agglayer bridge UI (opens in a new tab)

   zkEVM claims site (opens in a new tab)Official docs (opens in a new tab)

5. Across deposit never filled

   $0 · 16 positionsMay not work

   You sent a deposit through Across but nobody filled it on the other chain. Expired deposits are refunded by Across in batches. If no refund arrived long after expiry, contact Across support.

   1. Find your deposit transaction hash on the origin chain explorer.
   2. Look up the hash in the Across Deposit Status Tracker (linked in the Across docs). Status 'expired' means the refund is queued.
   3. Refunds go through batches that take several hours. If nothing arrives long after expiry, send the hash to Across support.
   4. No refund address was set? The refund goes to the depositor address.

   Across (opens in a new tab)Official docs (opens in a new tab)