01 / BENEFIT
20% off trading fees, for life
Sign up with OK66688 and pay 20% less on spot and futures trading fees. The discount is tied to your account permanently — nothing to renew.
See fees & calculator20%FEE
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Updated 2026-09-24 · OKX referral / invite code
OKX referral code OK66688:
OKX referral code OK66688:
20% off fees, for life.
Enter OK66688 when you register on OKX to cut your spot and futures trading fees by 20% for good, and unlock the new-user Mystery Box worth up to 60,000 USDT. Below: where to enter the code, a 4-step sign-up guide and official app downloads.
OKX REFERRAL CODE / OK66688SIGN UP · APP · BUY · SAFETY
01 / BENEFITSWhat do you get
What do you get
with OK66688?
All rewards are issued by OKX. Offers and caps are shown in the OKX Rewards Center and may change.
02 / BENEFIT
Mystery Box up to 60,000 USDT
Verify your identity and open the new-user Mystery Box in the Rewards Center; your first deposit and first trade unlock more. Rewards include BTC, ETH and fee vouchers.
How to claim03 / BENEFIT
New-user tasks & earn boosts
Complete simple tasks for vouchers and trial bonuses, and put idle USDT into Simple Earn so it keeps working for you.
Beginner guide04 / BENEFIT
Web3 wallet, airdrops, Jumpstart
One account covers the exchange and the OKX Web3 wallet — the easiest way into 2026’s airdrop tasks and new-token launches.
What’s hot02 / WHERE TO ENTERWhere do I enter
Where do I enter
the referral code?
All three work the same way. The code can only be set once, at registration — check it before you submit.
Referral link (easiest)
Open okx.com/join/OK66688 and the code is filled in for you. Just confirm it reads OK66688.
On the OKX website
On the sign-up page, enter your email or phone, then type OK66688 into the “Referral code (optional)” field and continue.
In the OKX app
Tap “Sign up”, expand “Referral code” under the email / phone field, enter OK66688 and finish verification.
03 / SIGN UP IN 4 STEPSHow to sign up
How to sign up
for OKX.
Follow these steps to register, lock in the referral code and secure your account in one go.Full guide
Open the sign-up page
Use the button on this page to open okx.com. Check the address bar says okx.com — beware of look-alike sites.
Enter details, check the code
Add your email or phone and a password, make sure the referral code shows OK66688, then enter the verification code.
Verify your identity
Upload a valid ID and complete the face scan. Review usually takes minutes and unlocks deposits and trading.
Secure it, claim rewards
Turn on an authenticator app and an anti-phishing code, then open the Mystery Box in the Rewards Center.
04 / FEE SAVINGSHow much will
How much will
the code save you?
Estimated from OKX regular-user (Lv1) base rates and a 20% discount. Try your own monthly volume.
| Market | Standard | With OK66688 |
|---|---|---|
| Spotcrypto-to-crypto | 0.080% / 0.100% | 0.064% / 0.080% |
| USDT-margined perpetualsUSDT margin | 0.020% / 0.050% | 0.016% / 0.040% |
| Coin-margined futurescoin margin | 0.020% / 0.050% | 0.016% / 0.040% |
| Discount duration | — | For life |
The discount is bound to your account at sign-up and applies to the fees you actually pay. Higher VIP tiers get lower base rates; rates and discounts can change — the OKX fee page is the final word.
05 / WHY OKXWhy new users
Why new users
pick OKX.
One of the world’s largest exchanges — spot, futures and a Web3 wallet in a single app.OKX vs Binance
Proof of Reserves
Monthly reserve reports you can verify yourself with a Merkle-tree tool.
Deep spot & futures markets
Hundreds of spot pairs plus perpetual and dated futures, with fast matching and low slippage.
OKX Web3 wallet
A multi-chain self-custody wallet that sits next to your exchange account in one app.
Buy crypto your way
Card, bank transfer and P2P from verified merchants — options depend on your region.
Earn, copy trading & bots
Simple Earn, copy trading, grid and recurring-buy bots for every experience level.
24/7 support
Live chat in the app and on the website for account, verification and deposit questions.
06 / APP DOWNLOADOfficial OKX
Official OKX
app downloads.
Register with the referral link first, then install the app and log in — the code stays linked. Only use official sources.
iPhone & iPad
Search “OKX” in the App Store and check the developer is OKX. If it isn’t listed in your region, see the OKX download page.
App StoreAndroid
Install from Google Play, or get the official APK from the OKX download page. Never install APKs shared in chats.
Google PlayWeb & desktop
Trade in the browser at okx.com, or install the Windows / macOS desktop app from the official download page.
OKX downloads07 / P2P SAFETYBuying on P2P?
Buying on P2P?
Four rules.
P2P lets you buy crypto from other users with local payment methods. These habits prevent most problems.
Only trade with verified merchants
Pick merchants with a verification badge, many completed orders and high completion rates. Skip prices that look too good.
Pay from your own account
The payer, your OKX verified name and the account holder should be the same person. Never use third-party payments.
Never leave the platform
Keep every message inside the OKX order chat. Anyone asking you to move to WhatsApp or Telegram is a red flag.
Keep your records
Save order screenshots, payment receipts and chats so you can explain the source of funds if your bank asks.
08 / GUIDESGuides for new users,
Guides for new users,
one question each.
Each guide answers one of the questions new users search most. Read first, then sign up with confidence.
GUIDE / SIGN-UP
How to sign up for OKX
Step-by-step OKX registration on web and app, plus identity verification.
GUIDE / APP-DOWNLOADOKX app download
Official iOS, Android and desktop downloads — and how to spot a fake app.
GUIDE / FORGOT-REFERRAL-CODEForgot the referral code?
Can you add an OKX referral code after sign-up? What to do with an old account.
GUIDE / FEESOKX fees explained
Spot and futures fee table, maker vs taker, and a savings calculator.
GUIDE / BUY-CRYPTOHow to buy crypto on OKX
Card, P2P and deposits — plus P2P safety rules and cashing out.
GUIDE / IS-OKX-SAFEIs OKX safe and legit?
Proof of reserves, licences, availability by country and common scams.
GUIDE / OKX-VS-BINANCEOKX vs Binance
2026 side-by-side comparison and how to move funds from Binance to OKX.
GUIDE / OKEX-TO-OKXOKEx is now OKX
Official website, login safety and how to avoid phishing domains.
GUIDE / CRYPTO-FOR-BEGINNERSCrypto for beginners
Bitcoin, USDT and futures explained, plus airdrops, Jumpstart and Web3 wallets.
09 / QUESTIONSOKX referral code
OKX referral code
FAQ.
People also searchOKX referral codeOKX referral code 2026OKX invite codeOKX sign up bonusOKX promo codeHow to sign up for OKXOKX verification code not receivedOKX KYCOKX app downloadAdd OKX referral code after sign upOKX feesOKX maker taker feeOKX fee discountHow to buy crypto on OKXOKX P2POKX withdraw to bankIs OKX safeIs OKX legitOKX proof of reservesOKX vs BinanceTransfer from Binance to OKXOKEx loginOKX official websiteOKX airdrop
01What is the OKX referral code?
The OKX referral code (also called an invite code) recommended on this site is OK66688. Enter it in the referral code field when you register, or sign up through okx.com/join/OK66688 and it is filled in automatically.
02Where do I enter the OKX referral code?
On the website it is the “Referral code (optional)” field under the sign-up form. In the app, tap “Referral code” below the email / phone field to expand it. If you use the referral link, the field is pre-filled — just check that it shows OK66688.
03What do I get with referral code OK66688?
A 20% discount on spot and futures trading fees for the life of your account, plus access to the new-user Mystery Box (up to 60,000 USDT) and new-user tasks. Exact rates and rewards are shown on OKX and can change.
04Is there an OKX promo code or sign-up bonus in 2026?
For new users the referral code is the promo code: signing up with OK66688 links the fee discount to your account, and the sign-up rewards appear in the OKX Rewards Center after you verify your identity and complete new-user tasks.
05I forgot to enter a referral code. Can I add it later?
Referral codes are normally bound at registration. Brand-new accounts can check the Rewards Center for an option to enter one; if there is none, the code cannot be added. See our guide on forgotten referral codes.
06Is a referral code different from a referral link?
No. The link simply fills in the same code for you. Both point to OK66688.
07How do I claim the OKX Mystery Box?
Verify your identity, then open the Rewards Center in the OKX app. Further boxes unlock after your first deposit and first trade. Most users receive small amounts of crypto or fee vouchers; the maximum is shown in the Rewards Center.
08What do I need to open an OKX account?
You must be 18 or older, with an email address or phone number and a valid government ID for identity verification (KYC). One person can verify one account.
09Is OKX available in my country?
OKX does not offer services in some countries and regions, and the product range differs by region. In the United States, OKX operates a separate platform with its own products and promotions, so this referral offer may not apply there. Check the OKX Terms of Service for your location before signing up.
10Is OKX safe?
OKX publishes monthly Proof of Reserves that you can verify yourself, and it holds licences or registrations in several jurisdictions. No centralised exchange is risk-free, so turn on 2FA and avoid keeping all of your funds on any single platform.
11Is this the official OKX website?
No. This is an independent referral guide. We offer no login, deposits or custody — all sign-ups and trading happen on okx.com. We may earn a commission if you sign up through our links, at no extra cost to you.
INVITE CODE / OK66688
Go to OKX sign-up