Last updated: October 2026
LayerZero is an interoperability protocol that lets smart contracts on different blockchains send messages to each other. Those messages can carry instructions such as “burn 100 tokens here and mint 100 there”, which is how omnichain tokens like Tether’s USDT0 and Ethena’s USDe move across dozens of networks without classic wrapped versions. Its token, ZRO, launched by airdrop in June 2024. In 2025 the LayerZero Foundation absorbed the Stargate bridge, and in February 2026 LayerZero Labs announced Zero, its own Layer 1, with backing from Citadel Securities.
You’ll find this and every related walkthrough in our Crypto Bridging hub.
What Is LayerZero?
Blockchains cannot natively read each other’s state. A bridge or messaging protocol has to observe an event on chain A and convince chain B it happened. LayerZero’s design leaves the “convincing” part configurable: each application chooses which independent verifiers must sign off before a message is accepted. That flexibility helped it become one of the most widely integrated messaging layers, and also drew criticism that security depends on how carefully each app configures it.
- Key takeaway: LayerZero is messaging infrastructure; most users touch it indirectly through bridges, stablecoins and apps.
- Key takeaway: ZRO has a fixed supply of 1 billion; claims in the 2024 airdrop required a small donation per token to Protocol Guild.
- Key takeaway: Since the 2025 Stargate acquisition, Stargate’s excess revenue has gone to ZRO buybacks; the protocol-wide fee switch had not been activated at last report.
- Key takeaway: Zero, announced in February 2026, is positioned as ZRO’s main future use case, but its performance claims are unverified.
History & Origin Story
LayerZero Labs was founded in 2021 by Bryan Pellegrino, Ryan Zarick and Caleb Banister. Pellegrino and Zarick had previously worked together on game-theory and poker AI, an unusual background that shaped the team’s focus on adversarial security. Their 2021 whitepaper introduced the “ultra light node” idea: rather than running a full light client of every chain, endpoints relied on two independent parties (an oracle and a relayer) to deliver and confirm block data.
The protocol and its flagship app, the Stargate bridge, launched in March 2022. That month LayerZero raised a $135 million round at a $1 billion valuation from investors including Andreessen Horowitz, Sequoia and FTX Ventures. In April 2023 it raised a further $120 million at a $3 billion valuation. By then dozens of chains were connected and the “OFT” (Omnichain Fungible Token) standard was spreading.
LayerZero V2 launched in January 2024, replacing the oracle-plus-relayer model with configurable Decentralized Verifier Networks (DVNs) and separate executors. That year the team also ran one of the most-discussed airdrop campaigns in crypto. Ahead of the token, LayerZero invited airdrop farmers to self-report Sybil (multi-wallet) activity in exchange for a reduced allocation, then paid bounty hunters to identify the rest. ZRO launched on 20 June 2024, with 8.5% of supply distributed on day one to about 1.28 million eligible wallets. Claimants had to make a “proof of donation”, paying $0.10 per ZRO claimed to Protocol Guild, an Ethereum developer fund. The approach split the community: some praised its fairness to real users, others resented the donation and exclusions.
In 2025 the LayerZero Foundation acquired Stargate after a DAO vote. STG holders could convert at a fixed rate of 0.08634 ZRO per STG, the Stargate DAO was dissolved, and remaining DAO-held STG was burned in February 2026. Stargate’s veSTG revenue share ended, with excess revenue redirected to open-market ZRO buybacks.
On 10 February 2026, LayerZero Labs announced Zero, a Layer 1 blockchain aimed at capital-markets infrastructure. The announcement named collaborations with Citadel Securities (which also made a strategic investment in ZRO), DTCC, Intercontinental Exchange and Google Cloud, plus an investment from ARK Invest. LayerZero claimed Zero could reach up to 2 million transactions per second; outlets including Decrypt noted they could not verify that figure. The company has said ZRO will be the staking, gas and fee token for Zero.
How LayerZero Works
- Endpoints: Immutable contracts deployed on each supported chain that send and receive messages.
- DVNs: Independent verifier sets (run by LayerZero Labs, Google Cloud, Polyhedra, Nethermind and others) that check a message before it is committed. Apps choose which DVNs are required and how many must agree.
- Executors: Parties that deliver verified messages and pay destination gas, so users only pay on the source chain.
- OApp and OFT: The OApp standard lets any contract message across chains; OFT applies it to tokens by burning or locking on one chain and minting or releasing on another, keeping one unified supply.
The key risk lever is configuration. An app that requires only a single DVN has a single point of failure; one that requires several independent DVNs is far harder to attack. When you use an omnichain token, the app’s DVN settings matter more than LayerZero’s brand.
LayerZero vs Chainlink CCIP vs Wormhole
| Protocol | Security model | Notable users | History |
|---|---|---|---|
| LayerZero | App-configured DVN sets | USDT0, USDe, Stargate | No core-protocol exploit widely reported; criticism focuses on default configurations |
| Chainlink CCIP | Chainlink oracle network plus separate risk-management network | Banks and asset tokenization pilots, DeFi tokens | Strong institutional relationships |
| Wormhole | Guardian set of 19 validators | Solana-linked assets, many token bridges | Lost about $320 million in a 2022 exploit, later replenished by Jump |
See our profiles of Chainlink and Wormhole for their designs.
Enterprise interoperability is a separate niche; our guide to Quant (QNT) and Overledger explains how one firm sells licensed software to banks.
Tokenomics & Supply
ZRO’s total supply is fixed at 1 billion. At launch the allocation was about 38.3% to the community (airdrops, future distributions and ecosystem), 32.2% to strategic partners and 25.5% to core contributors, with a further share held as repurchased tokens. Partner and contributor tokens vest over three years, so unlocks continue into 2027. LayerZero has said institutional purchases and early-investor buyouts account for a significant share of supply, a company claim worth checking against unlock trackers.
ZRO’s demand drivers are governance, the Stargate buyback flow, the potential protocol fee switch (holders vote roughly every six months; the December 2025 referendum did not reach quorum) and, if it launches as described, staking and gas on Zero.
How to Use LayerZero and Buy ZRO
Moving assets with LayerZero-powered apps
- Open the official app of the token or bridge you need, such as Stargate for liquidity transfers or the token issuer’s own bridge page for OFT tokens. Bookmark it to avoid phishing clones.
- Connect a wallet like MetaMask, choose source and destination chains, and review the fee, which is paid on the source chain.
- Send a small test amount first, then track the message on LayerZero Scan using the transaction hash.
Our how to bridge crypto guide covers bridge safety in more depth.
Because ZRO exists on several chains, our guide to buying LayerZero (ZRO) explains how to choose an exchange and a withdrawal network.
Buying ZRO
ZRO trades on major exchanges such as Binance, Coinbase and OKX, depending on your region, and on DEXs across several chains as an OFT. Withdraw only to a network your wallet supports. Our how to buy crypto hub walks through exchange setup.
Risks & Is ZRO a Good Investment?
- Value capture: Messaging volume does not create ZRO demand unless fees or Zero usage require it.
- Configuration risk: A poorly configured app could be exploited even if LayerZero’s core contracts are sound.
- Unlocks: Partner and contributor vesting adds supply through 2027.
- Execution on Zero: Institutional partnerships are announcements, not proof of production usage.
- Competition: Chainlink CCIP, Wormhole, Axelar and native rollup interoperability all compete for the same flows.
A positive scenario sees Zero and fee activation tie ZRO to real economic activity; a negative one sees LayerZero stay widely used while ZRO captures little of that use.
FAQ
What is LayerZero used for?
LayerZero lets smart contracts on different blockchains exchange messages. Its most common use is moving tokens: omnichain tokens such as USDT0 and USDe use its OFT standard to burn on one chain and mint on another. Apps also use it for cross-chain governance, lending and NFT transfers.
What was the LayerZero proof of donation?
To claim the June 2024 ZRO airdrop, eligible users had to donate $0.10 in ETH, USDC or USDT for each ZRO claimed. The donations went to Protocol Guild, which funds Ethereum core developers. LayerZero described it as a way to reward builders and deter low-value farming.
What is the Zero blockchain?
Zero is a Layer 1 announced by LayerZero Labs on 10 February 2026, aimed at trading, clearing and settlement for tokenized markets. Citadel Securities, DTCC, ICE and Google Cloud were named as collaborators. LayerZero says ZRO will be its staking, gas and fee token. Claimed throughput figures had not been independently verified.
Is LayerZero safe to use?
LayerZero’s core endpoints have a solid record, but safety depends on each application’s DVN configuration and on the destination chain. Use official app links, send test amounts, and prefer tokens whose issuers require multiple independent verifiers. No cross-chain transfer is risk-free.
Crypto is volatile and risky; this is education, not financial advice. Do your own research.
