No.159
Kaia KAIA
the chat-app coin made from two coins joined together
๐ญ a fusion-type creature: when Korea's Kakao chain and Japan's LINE chain combined, this little spirit was what they became. It lives where people already chat.
๐ฌ โHi! I used to be two coins. The yellow one lived in KakaoTalk, the green one lived in LINE. Now we're one, and I hang out right inside your chat window. Tap me and a little app opens, no downloads needed. โจโ
- Two coins became one: Korea's Klaytn (Kakao) and Japan's Finschia (LINE) merged in August 2024.
- The idea is simple. It puts small โmini appsโ (mini dapps) inside chat apps people already open every day.
- Under the hood it's a fast Ethereum-compatible Layer 1 (about 4,000 TPS, one-second blocks).
๐ The Story
Kaia is easiest to understand if you know where it came from. Korea's Kakao ran a blockchain called Klaytn. Japan's LINE ran one called Finschia. Two big messengers, two separate coins, both trying to do roughly the same thing on their own.
In early 2024 they decided to stop competing and combine. Both communities held a governance vote on February 15, and the yes votes were overwhelming (Finschia 95%, Klaytn 90%). The merged chain went live on August 29, 2024, and old KLAY swapped over to KAIA one-for-one. That's an unusual move in crypto. Coins usually split apart in a fork. Kaia is two of them flowing together instead.
What you actually get from all that is a coin built to live inside chat. Open KakaoTalk or LINE, tap a mini app, and it just opens, a game, a wallet, a small service, without sending you off to download anything.
๐ Stats
๐งฉ How it works
Kaia is a Layer 1 that's compatible with Ethereum (EVM). That means apps built for Ethereum can be brought over and run on it as-is. Its consensus uses Proof of Stake, where validators finish agreeing on every single block right away, so transactions are confirmed every second with no forks (instant finality). And nobody can guess who builds the next block, because it's chosen at random (VRF), which makes it tough to attack. On this fast road, Kaia pops mini apps onto the KakaoTalk and LINE chat windows.
๐ Light & Shadow
- It starts where the users already are. KakaoTalk and LINE between them reach a massive chat audience, and mini apps open right inside the messenger.
- It's fast and cheap to use. Around 4,000 TPS, one-second blocks, and gas fees roughly a tenth of Ethereum's.
- Because it's Ethereum-compatible, an existing app can usually be moved over without a rewrite.
- There's no supply cap. New KAIA is minted every block at roughly 5.2% a year to start. Burns push the other way, but overall more is created than destroyed.
- Decisions run through a governance council of large companies. That keeps things orderly, but it's fair to ask how decentralized that really is.
- The merged chain is young. It only went live in 2024, and whether the mini-app ecosystem really catches on is still an open question.
๐งฌ Evolution lineage
Kaia comes from a โmergerโ lineage. It's not a splitting fork, it's the rare case of two sibling chains flowing together into one. Korea's Klaytn (KLAY, Kakao ยท 2019) and Japan's Finschia (FNSA, LINE ยท 2018 โ rebranded 2022) merged to become Kaia. Kaia is the direct successor to Klaytn while also absorbing Finschia into one unified chain.
๐งญ Meet other friends
โ FAQ
- What is Kaia (KAIA)?
- It's a Layer 1 blockchain backed by two of Asia's biggest messengers, KakaoTalk and LINE. It was born in 2024 when two sibling chains, Klaytn from Korea and Finschia from Japan, merged into one. Its goal is to bring Web3 apps (mini dapps) to everyday messenger users in an easy way.
- How did two coins merge into one?
- Usually a coin splits in two (a โforkโ), but Kaia is the rare opposite: two sibling chains joined into one. After both communities voted yes on February 15, 2024 (Finschia 95%, Klaytn 90% in favor), the mainnet launched on August 29, 2024. Old KLAY converted to KAIA at 1:1, and FNSA at roughly 148:1.
- How fast is Kaia?
- Around 4,000 TPS, a 1-second block time, and gas fees about one-tenth of Ethereum's. Every block finishes its consensus right away, so transactions are confirmed instantly with no forks (instant finality), which makes it fast and stable.
- Does it have a supply cap?
- No fixed cap, it's inflationary. New KAIA is minted with every block, starting at about 5.2% annual inflation. To offset this, it also uses a triple burn model (transaction, MEV, and business-based burns) to reduce supply. (This is the exact opposite of Bitcoin's fixed 21 million.)
โ ๏ธ Not investment advice. All figures are for information only (MOCK ยท 2026-06-04).