CEX.IO: proving you own your self-custody wallet
CEX.IO only permits first-party transfers (wallets you personally own). On external deposit or withdrawal you may need to state wallet type (self-hosted vs exchange/VASP), platform name for exchange destinations, beneficiary legal name, and physical address. For self-hosted wallets CEX.IO may ask for a quick ownership confirmation once per wallet.
When CEX.IO asks
Where: Global VASP implementing FATF-aligned Travel Rule information collection on crypto deposits and withdrawals (CEX.IO Help Centre).
Threshold: CEX.IO’s Travel Rule help article does not publish a single dollar/euro figure. It says you may be prompted for beneficiary data when you initiate a crypto deposit or withdrawal.
Accepted verification methods
| Method | Status | Details |
|---|---|---|
| Beneficiary / Travel Rule data | Accepted | Provide wallet type (self-hosted or exchange/VASP), platform name if another exchange, beneficiary full legal name, and full physical address (street, city, region, zip, country) when prompted.[1] |
| Self-hosted ownership confirmation | Accepted | CEX.IO says you may be asked to complete a quick ownership confirmation that the private wallet belongs to you. Once verified, it will not ask again for that wallet. The help article does not name the cryptographic method used.[1] |
| Message signing | Not listed | Not described as a named method in the CEX.IO Travel Rule help article we checked (ownership confirmation is mentioned without specifying signature vs other proof).[1] |
| Satoshi test | Not listed | Not described in the CEX.IO Travel Rule help article we checked.[1] |
| Screenshot | Not listed | Not mentioned in the CEX.IO Travel Rule help article we checked. |
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Step by step
Withdraw to your own self-hosted wallet[1]
- Start a crypto withdrawal to an address you personally own (third-party sends are prohibited under CEX.IO’s Terms of Use as summarised in the Travel Rule article).
- When prompted, set wallet type to Self-Hosted Wallet.
- Enter beneficiary identity fields with your own legal name and residential address if asked.
- Complete the ownership confirmation if CEX.IO shows it. After success, that wallet should not be asked again.
Follow the live prompt for how ownership confirmation works on your account — the public article does not spell out signature vs other proof. Open the verifier →
Withdraw to another exchange (VASP)[1]
- Choose Exchange/VASP as the wallet type.
- Enter the official platform name and the beneficiary (recipient) details for the account on that exchange.
- Submit and wait for any compliance checks before broadcast.
Common errors and fixes
Asked again for the same self-hosted wallet
CEX.IO says once ownership is confirmed you should not be asked again for that wallet. If you are, confirm you are using the same address and contact CEX.IO support.[1]
Want to send to someone else
CEX.IO’s Travel Rule article states only 1st-party transactions are permitted — deposits and withdrawals must be to/from wallets you personally own.[1]
FAQ
Does the Travel Rule affect trading?
CEX.IO says it does not impact day-to-day trading, holding or internal portfolio management — only external deposit/withdrawal context.
Is my data published on-chain?
CEX.IO says personal information is never published publicly on the blockchain; it is transmitted through encrypted compliance networks to counterparty institutions.
What exact ownership proof do they use?
The public article only says a “quick ownership confirmation”. Follow the in-app method shown for your wallet.
Sources
Last checked 2026-10-27. Numbers in brackets [n] in the text refer to this list.
KeyProof is not affiliated with CEX.IO. This guide summarizes CEX.IO's public help pages and may be out of date. Always follow the instructions in your CEX.IO app. Not legal, tax or financial advice.