Proof-of-stake Cosmos Layer 1 focused on emerging market FX orchestration and cross-border settlement
KiiChain is a Proof-of-Stake Layer 1 blockchain and foreign exchange orchestration network designed for emerging market finance. Built with the Cosmos SDK and CometBFT consensus, the network combines full Ethereum Virtual Machine compatibility and CosmWasm smart contract support. Its primary function is providing real-time, non-custodial settlement rails for cross-currency swaps, fiat stablecoins, and tokenized real-world assets.
The network is backed by parent company EMF Group SA de CV, with Colombian subsidiary KiiGlobal S.A.S. operating as the token-issuing entity in Colombia. Network governance and security rely on CometBFT validators, with native KII token holders delegating stake to secure consensus. The total supply of 1.8 billion KII was minted at genesis under chain ID kiichain_1783-1 in December 2025.
KiiChain operates a hybrid matching engine that integrates wholesale institutional pricing APIs with onchain liquidity pools. This setup enables decentralized, non-custodial currency swaps with local fiat stablecoins such as Colombian Peso (COP), Argentine Peso (ARS), Mexican Peso (MXN), and Brazilian Real (BRL). Gas and transaction execution fees are paid natively in KII tokens. Cross-chain liquidity routing and general message passing run through integrations with Hyperlane, Euclid Protocol, and Union, while Kii has expanded its settlement tooling to networks such as Polygon.
Smart contract security firm Hacken audited KiiChain's Layer 1 infrastructure in March 2026. On August 22, 2026, an upstream integer underflow defect in the Cosmos EVM staking precompile was exploited on the network. An attacker drained 148,326,583.15 KII, valued at roughly $9.7 million at pre-exploit rates. Validators halted the chain at block 9,355,723, freezing 80.7 million KII on-chain, while the remaining tokens were bridged to BNB Chain via Hyperlane and liquidated. KiiChain published an incident post-mortem on August 23, 2026, detailing the vulnerability and validator coordination.
Relying on cross-chain bridge protocols like Hyperlane introduces external smart contract and liquidity risks during cross-network settlement. The validator halt following the August 2026 exploit highlights central coordination dependencies among active node operators during critical events. Upstream dependencies on external EVM modules have also introduced code-level vulnerabilities that affect chain continuity.
KiiChain delivers specialized onchain FX settlement and emerging market payment infrastructure, but suffered a major bridge and EVM precompile exploit in August 2026.
KiiChain is a Proof-of-Stake Layer 1 app-chain built with the Cosmos SDK and CometBFT consensus. Directed primarily toward emerging markets in Latin America, it integrates an Ethereum Virtual Machine (EVM) layer and CosmWasm support, letting developers deploy smart contracts in Solidity and Rust. The chain targets foreign exchange orchestration, cross-border payments, and real-world asset (RWA) settlement, connecting local fiat currency stablecoins such as COP, BRL, and MXN to onchain trading rails.
Its structural architecture offers specific operational advantages:
Security and track record present concrete counterparty risks. On August 22, 2026, an attacker exploited an upstream underflow defect in the shared Cosmos EVM staking precompile, draining 148,326,583.15 KII tokens with a nominal valuation of roughly $9.7 million. Validators halted block production at height 9,355,723, freezing 80.7 million KII on the chain, though the attacker bridged the remaining balance to BNB Chain and sold it. Although Hacken completed an audit in March 2026, upstream execution bugs still triggered significant capital loss and an emergency chain halt.
KiiChain fits payment aggregators and institutional desks seeking automated Latin American FX liquidity pipelines. Teams prioritizing mature DeFi ecosystems and spotless incident records should deploy on established general-purpose networks instead.
| Layer | Layer 1 · unverified |
|---|---|
| Consensus / design | Proof of Stake · unverified |
| Native token | KII · unverified |
| EVM compatible | Yes · unverified |
| Smart contract languages | Solidity, Rust · unverified |
| Mainnet since | 2,025 · unverified |
| Sequencer | Not applicable · unverified |
| Gas paid in | KII · unverified |
Not disclosed by the provider: Block time, Typical transaction fee, Finality, Validators / sequencer, Throughput (TPS), Data availability.
Data from the provider's website and public sources. Fees and availability change; confirm on the official site before you sign up.
Supports both EVM smart contracts and CosmWasm modules within a Cosmos SDK architecture using CometBFT consensus.
Routes cross-currency swaps and payments 24/7 across local emerging market currencies including COP, ARS, MXN, and BRL.
Pairs wholesale centralized foreign exchange pricing APIs with onchain decentralized liquidity pools.
Uses the native KII token to settle transaction fees, delegate to validators, and vote on governance proposals.
Connects with external chains such as BNB Chain and Polygon using Hyperlane messaging and liquidity routing.
Enables physical and virtual card spending backed by onchain stablecoin balances and KiiChain payment rails.
Combines institutional wholesale foreign exchange pricing via developer APIs with decentralized, zero-slippage smart contract swaps.
Executes cross-border payments with finality using local fiat stablecoins across emerging and developed markets.
Automates 24/7 non-custodial currency routing and settlement backed by prefunded liquidity pools.
Provides physical and virtual cards that allow users to spend onchain cryptocurrency balances over KiiChain foreign exchange rails.
KiiChain public coverage centers on exchange listings, project funding announcements, testnet activities, and promotional airdrop distributions.
Based on 2 Reddit posts and comments from the last 12 months, checked Oct 21, 2026. These are posts by users on other sites, not reviews submitted on CryptoReview.
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KiiChain is a Proof-of-Stake Layer 1 blockchain built on the Cosmos SDK and CometBFT consensus. It functions as an onchain foreign exchange orchestration layer focused on emerging market payments, stablecoins, and tokenized real-world assets.
The network token issuer is KiiGlobal S.A.S., a Colombian entity operating as a subsidiary of EMF Group SA de CV. The initiative began roadmap development in 2022.
KII is the native utility and gas token with a fixed total supply of 1.8 billion created at genesis on December 5, 2025. It is used to pay transaction fees, delegate to CometBFT validators, participate in governance, and settle protocol-level liquidity.
Yes, on August 22, 2026, an attacker exploited an underflow defect in the Cosmos EVM staking precompile to drain 148,326,583.15 KII. Validators halted the network at block 9,355,723 to freeze 80.7 million tokens on-chain, though the remainder was bridged to BNB Chain and sold.
Yes, KiiChain features an EVM execution layer alongside CosmWasm support. This allows developers to deploy standard Solidity smart contracts as well as Cosmos-native contracts.
Yes, blockchain security firm Hacken conducted a security audit of KiiChain in March 2026.
Recent public posts from @KiiChainio, shown as published. Not reviewed or endorsed by CryptoReview.
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