CUBE3

CUBE3, now known as CUBE AI, is a Palo Alto company that sells fraud and scam prevention software. It is not the Cube crypto exchange, and it is not a Solana protocol. Its buyers are banks, fintechs, crypto exchanges and public bodies. The software aims to spot a scam and stop the payment before the money moves.

The firm began in 2022 as CUBE3.AI, a Web3 security startup. Back then it blocked bad transactions sent to smart contracts. By October 2026 its website sold something broader, which it calls an "agentic crime prevention platform" for big banks. We found no CUBE AI token. Its link to Solana is thin: some listings say its risk tools cover Solana.

What does CUBE AI do, and how does it work?

CUBE AI tries to stop fraud before a payment is made, not report it after the loss. Its website says it runs AI agents "inside criminal networks". These agents gather proof of scams while the scams are still being set up. CUBE AI then hands that proof to its clients, so they can block a payment or freeze an account in time.

A common target is the mule account. That is a bank account or wallet that crooks use to receive stolen money and move it on. CUBE AI says it finds these accounts before funds reach them.

The product covers both bank payments and crypto. The trade site About-Fraud says it watches bank rails such as ACH, SEPA and Zelle as well as blockchains. It flags risky accounts, wallets and payment details. In a speaker page for a 2026 Global Anti-Scam Alliance event, the firm's president calls the product Apex.

Here is how that looks in use. Say you run an exchange and a user asks to send funds to a new address. A tool like this checks that address against known scams before you approve the transfer. If the address is tied to a live scam, you can hold the transfer and warn the user.

CUBE AI shows no prices and no public technical docs. Its website lists SOC 2 and ISO 27001 badges and says it meets GDPR rules. It also lists ties to the Global Anti-Scam Alliance and to FS-ISAC, a group through which banks share threat data.

From CUBE3.AI smart contract security to CUBE AI: what changed

CUBE3.AI came out of stealth in August 2023 as a security tool for smart contracts. It has since moved on to serve banks and payment firms. The first pitch was simple: let a smart contract refuse a bad transaction, so the app does not have to pause. Founder Einaras Gravrock told CoinDesk at launch that it was "a bit like a guardian angel is watching over your contract."

That first version had three parts, named Detect, Protect and Manage in later reviews. Detect gave a risk score to transactions, wallets and contracts. Protect blocked the ones that scored too high. Manage dealt with rules, alerts and reports. Tech Funding News wrote that the score covered fraud, cyber threats and compliance risk.

The shift began in September 2024. A company press release said the product would now mix blockchain data with signals from social media, websites and the dark web. The logic was that most crypto scams start off-chain. They begin in a chat app or on a fake site, long before the victim sends funds.

By 6 October 2026 the old pages for developers were gone. The docs site sent visitors to a login page. The blog address no longer loaded. The pages for the smart contract tools gave errors, and the home page named no products at all. If you built on the old Protect contracts, ask CUBE AI whether it still supports them.

Work on blockchain crime goes on. The firm's arm in Lithuania, UAB Cube Security Europe, runs an EU-backed project to detect and prevent crime on blockchains in real time. The project runs from December 2024 to December 2027. It is worth about EUR 2.5 million, and about EUR 1.5 million of that is EU money.

Does CUBE3 support Solana?

CUBE3 has been listed as covering Solana for risk scores, but we found no sign of a product built for Solana. The one audit of its smart contract tool covers EVM chains. Those are the networks that run contracts in the style of Ethereum. We list no Solana program for CUBE3, and we found none in the firm's own pages.

Outside listings do not agree on which chains it covers now. QuickNode's tool list names Solana next to Bitcoin, TRON, Ethereum and six more chains. Circle's partner list, last updated on 3 March 2026, names five EVM chains and leaves Solana out.

For a Solana team, this means you should expect little. CUBE AI may be able to check a Solana wallet address for fraud risk. It will not sit inside your Solana program and reject transactions. The docs are behind a login, so ask the firm what it covers on Solana before you plan around it.

Who is CUBE AI for?

CUBE AI is built for fraud, risk and compliance teams at large regulated firms. Its website names banks, fintechs, crypto exchanges, custodians, public bodies and big tech platforms as the groups it serves. You buy it through a demo request, and the price is set case by case.

So it fits a small slice of the Solana world. Say you run an exchange, a custodian, a payments firm or a stablecoin on-ramp. If scam losses and mule accounts are a daily problem for you, CUBE AI is aimed at you.

It is a poor fit for most others. A small Solana DeFi team that wants on-chain cover for its program will not find a self-serve tool here. The website has no sign-up for single users, only a demo form for firms.

Is CUBE AI safe and legit? Risks and limits

CUBE AI is a funded company that lists SOC 2 and ISO 27001 badges, but you can check very little about how well its product works. Its website gives no detection rates and no false alarm rates. It shows no case studies. Claims about losses it has stopped come from the firm itself.

Know these limits before you rely on it.

• The only outside audit we found covers the old product. Least Authority checked CUBE3's EVM smart contracts and posted its report in November 2023. That audit does not cover the new product, or anything on Solana.
• The service is closed and runs on CUBE AI's own servers. You cannot see inside the models that make each risk call. If the service is down or wrong, your payments feel it. A review by the research site Airframe said the audit flagged the server as a possible single point of failure.
• False alarms cost you users. Any tool that blocks payments ahead of time will block some honest ones too. You set the cut-off, so you carry that trade-off.
• The docs are no longer public. You cannot read how it plugs in, which chains it covers or how it handles data until you talk to sales.
• Public reviews are few. Airframe found a small set of reviews that lean positive, and noted gaps in cover on some chains.

Nothing in CUBE AI's pages says it holds client funds. By its own account it scores and flags activity, and your own systems act on the result.

CUBE AI alternatives for crypto fraud and compliance screening

The right choice depends on the job you need done. CUBE AI's pitch is to stop scams before payment, across both bank rails and crypto. Other vendors go deeper on one side.

For tracing funds and running a case, Airframe names Chainalysis, Elliptic and TRM Labs as the firms with more depth. It names Solidus Labs for watching markets. Tracxn's list of CUBE3 rivals also puts Elliptic and Solidus Labs near the top, next to CertiK.

For the Web3 security job that CUBE3.AI first set out to do, the software site SoftwareSuggest lists Blockaid, Blowfish, Hacken and CertiK's Skynet. Check what each one covers on Solana yourself, since these lists do not split it out by chain.

No one tool covers every case. Gravrock said as much at the 2023 launch. He told Tech Funding News that "no single web3 security company or product offers a silver bullet."

CUBE AI funding, founder and team

CUBE AI is led by its founder and chief executive, Einaras Gravrock. The firm has raised money several times since 2023. The seed round came first: $8.2 million in August 2023, led by Blockchange Ventures. Dispersion Capital, Symbolic Capital, Hypersphere Ventures, ICLUB and TA Ventures also took part.

The largest round is the newest. On 2 October 2026, Dealroom reported a $48.5 million Series A, based on a filing with the US Securities and Exchange Commission. The tracker Fundz dates that Form D to 11 September 2026 and gives the legal name as Cube Security Inc. Neither source names who put the money in.

The data firm Tracxn also shows smaller Series A sums in June 2024 and December 2025. Public records do not make clear whether the new figure counts them.

Jonathan Anastasia is the firm's president. His Global Anti-Scam Alliance speaker page says he spent years at Mastercard building fraud and compliance tools, one of them named Crypto Secure. The September 2024 press release named Chris Griffiths as chief technology officer.

CUBE AI's website lists offices in California, New York, London and Vilnius. Tracxn put its staff count at 69 at the end of July 2026.