What KAST is
KAST is a stablecoin money app with a Visa card, founded in 2024 by former Circle Asia-Pacific executive Raagulan Pathy. It runs on Rain's card-issuing infrastructure, raised an $80M Series A in March 2026 at a reported ~$600M valuation, and markets itself as a global dollar account you fund with stablecoins. Crucially, it is a custodial product: you send crypto in, and KAST holds a dollar balance for you.
Two years of top-ups, on-chain
OpenRate indexes the on-chain hubs KAST uses to receive funds across seven chains (Tron, Solana, Ethereum, Arbitrum, BSC, Polygon and Base). The trajectory is one of the steepest in the sector: from effectively nothing in mid-2024 to roughly $174M in top-ups in a single month by mid-2026. Cumulatively, about $1.58B has been loaded onto KAST over two years, with Tron and Solana carrying the largest share.
- June 2026 top-ups: ~$174M across seven chains
- Cumulative loaded (2024-2026): ~$1.58B
- Largest rails: Tron (~$59M/mo) and Solana (~$50M/mo)
- Median top-up ~$500 — capital-movement sizes, not coffee money
Who owns the money: the terms of service
KAST's terms of service (effective December 1, 2025) contain a clause that has drawn attention. Under Management of the Custodian Wallet, the terms state that when a user transfers crypto into KAST, the transfer is treated as a sale to KAST, and that once sold, the user no longer retains any ownership interest in those assets. The app balance is described as a USD-denominated ledger entry that does not constitute an account balance, deposit, or stored monetary value.
- Top-up is legally a sale; ownership transfers to KAST
- Balance is a claim on KAST, not a deposit
- A separate risk disclosure notes funds are not covered by deposit-protection schemes
Claims vs the on-chain footprint
Around its Series A, KAST cited more than one million users and roughly $5B in annualized transaction volume. The on-chain picture is more modest: 224,912 cumulative top-up users through June 2026 across the chains we track, and observed top-up flow annualizing near $2.1B. Part of the gap is expected — some funding may arrive via fiat rails that never touch a public chain, and a headline volume figure can bundle loads, spend and fiat together. But the footprint we can independently verify is materially smaller than the marketing headline, 'users' is never defined in KAST's releases, and the number of cards issued has never been disclosed.
- Claimed: 1M+ users · on-chain: 224,912 cumulative top-up users (Jun 2026)
- Claimed: ~$5B annualized volume · on-chain: ~$2.1B annualized top-ups
- The ~$600M valuation is the one figure with independent sourcing
The growth curve is bending
The monthly cohort data shows a maturing funnel. New top-up users peaked at 28,877 in February 2026 and have declined every month since, to 14,740 in June. Returning users keep climbing — 42,502 in June — so the existing base is stickier, but the top of the funnel is thinning. That is a normal shape for a two-year-old product; it is not a normal shape for one claiming 15-20% month-over-month growth.
- New users: 28,877 (Feb) → 14,740 (Jun) — five straight months of decline
- Returning users: 42,502 in June, an all-time high
- Top-ups still growing on dollars: ~$174M in June, driven by larger loads
July 2026: the token that won't launch
On July 2, 2026, KAST emailed users that it will not launch the $KAST token after all. Points accumulated across six seasons of farming — marketed for roughly eighteen months on the prospect of a token conversion — will instead convert into tokenized equity in the private company: illiquid, with no open market, on terms deferred to Q4 2026. KAST said investors preferred equity over a token. Whatever the merits, users who farmed points on token expectations now hold a claim with no market price, and KAST's airdrop legal page currently reads as under revision.
Who you are actually contracting with
The live terms of service name the operator as KAST Tech, registration number 16223, incorporated in Anjouan, Comoros, with disputes governed by Seychelles law. Earlier documents referenced Troia Corp in the Seychelles. KAST describes itself as a financial technology company, not a bank, with custody, cards and ramps provided by licensed partners (Fireblocks and BitGo for custody; the card issued under a Visa license via a named issuer of record). A separate risk disclosure states that in a failure or bankruptcy, users may not recover their money and that partner-held funds need not be segregated from KAST's own — in plain terms, balance holders are unsecured creditors of an offshore entity.
A different species from a spend card
It helps to contrast KAST with a card whose spending settles on-chain, like EtherFi Cash. EtherFi shows millions of small on-chain purchases at a median around ten dollars — an everyday debit card. KAST's on-chain signature is the opposite: fewer, larger loads, and the spending itself clears off-chain through Visa, so it is not publicly visible. KAST behaves like an off-ramp and capital-movement tool; the spend side is a black box by design of the custodial model.
How to read this if you hold a KAST balance
None of the above is an accusation of wrongdoing — a custodial structure is common (RedotPay operates similarly), and account freezes for compliance are industry-standard. The point is informational: on KAST, your balance is a contractual claim on an offshore company, not crypto you still own, and that is a different risk profile from a self-custodial card. Size your balance accordingly and treat it as money in transit rather than savings.