Axelar Network has quietly become a critical cross-chain coordination layer for DeFi. Launched in 2022, the protocol enables arbitrary message passing across 50+ blockchains, from Ethereum and its rollups to the Cosmos ecosystem and beyond. Its General Message Passing (GMP) and Interchain Token Service (ITS) power popular bridges and routers like Squid, allowing users to swap assets or trigger smart contract calls on any connected chain with a single transaction. In a multichain world, Axelar functions like the router’s router—a permissioned validator set signs multi-chain messages, making composability across siloed networks possible without compromising on auditability.
What it is
Axelar is a cross-chain messaging protocol built as a proof‑of‑stake Cosmos chain. It solves the fragmentation problem: dApps on one chain cannot natively read state or trigger actions on another. Axelar’s GMP provides a generalised interface for any payload to be relayed between chains, while its ITS standardises the creation and management of tokens that exist natively on multiple chains. Since launching in 2022, Axelar has grown to support over 50 networks and serves as the backbone for major cross‑chain infrastructure providers like Squid. The protocol is governed by the Axelar Foundation and uses the native AXL token for gas, staking, and governance. Today, it is one of the most widely integrated cross-chain layers, though it operates without a traditional TVL metric.
How it works
Axelar runs on a Cosmos SDK chain with a set of validators that collectively attest to events on external blockchains. When a user or dApp wants to send a message from Chain A to Chain B, it submits a transaction to an Axelar gateway contract on Chain A. Axelar validators monitor this gateway, reach consensus on the event, and produce a signed batch confirmation. A separate relayer network then delivers the proof to a gateway contract on Chain B, which verifies the validator signatures and executes the intended function call. This architecture decouples validation from execution, allowing gas‑efficient relay of arbitrary calldata.
The Interchain Token Service builds on GMP. A project deploys a token contract on multiple chains via ITS, and the service handles minting, burning, and locking across chains to keep supply consistent. Users can send an ITS token from one chain to another without worrying about wrapped versions—the service automatically manages the representation.
Smart contract addresses are not publicly listed in Axelar’s documentation, but the protocol’s gateway contracts are open source and have been audited by third parties. End users typically interact with Axelar through a bridge or DEX interface like Squid, never directly with gateway contracts.
Key numbers
- Chains supported: 50+ including Ethereum, Cosmos chains, Arbitrum, Optimism, Polygon, Base, Avalanche, and more.
- Audits: NCC Group, Oak Security, Informal Systems.
- Launch date: 2022.
- TVL: Not applicable—Axelar does not custody user funds.
- Token: AXL.
- Incidents: None recorded.
Security and audits
Axelar’s codebase has been reviewed by three firms: NCC Group, Oak Security, and Informal Systems. These audits have not uncovered any critical vulnerabilities that led to an exploit, and the protocol has operated since 2022 without a recorded incident. The CosmWasm and gateway contract logic is open source, allowing continuous public scrutiny.
The security model hinges on the Axelar validator set. Validators are required to bond AXL tokens and are overseen by the Axelar Foundation, which can upgrade contracts and manage the set. While this permissioned approach allows rapid response to threats, it introduces a centralisation risk: the foundation and a supermajority of validators can theoretically censor or reroute messages. Exact validator count, distribution, and slashing conditions are not publicly documented, making it difficult to assess the economic security of the network. Compared with permissionless validator sets, Axelar requires a higher degree of trust in the foundation’s operational security and key management.
Strengths
- Broad chain coverage: With over 50 supported networks, Axelar is one of the most connected cross-chain protocols. This reach reduces integration overhead for dApps that want to go multichain.
- General message passing: GMP makes Axelar more than a token bridge—it can trigger any smart contract function on a destination chain, enabling use cases like cross‑chain governance, lending, and yield aggregation. Popular routers like Squid rely on this for seamless execution.
- Proven audit track record: Three independent audits and two years of mainnet operation without a single exploit give confidence that the core message‑passing mechanism is sound. No critical code flaws have been publicly reported.
Weaknesses and risks
- Opaque validator set: Axelar does not publicly disclose the number of validators, their identities, or the stake distribution. This makes it impossible for users to evaluate the decentralisation or the cost of a consensus attack. A small, permissioned group could, in theory, halt or manipulate cross‑chain messages if compromised.
- No economic security metric: Unlike lending or restaking protocols that report TVL, Axelar has no on‑chain metric for the total value secured by its validators. Users cannot gauge whether the AXL at stake is sufficient to disincentivise malfeasance, especially during high‑value cross‑chain operations.
- Dependence on external relayers: After validators sign a message, relayers are responsible for delivering the proof. If relayer infrastructure is centralised or underfunded, message delivery could be delayed or censored, breaking composability for downstream dApps.
How it compares
Axelar’s peer set—drawn from the top protocols by pagerank—highlights its distinct role. Lending giant Aave Aave holds about $14.2B TVL and Liquid Staking leader Lido Lido commands about $17.3B TVL; both are category leaders that lock user funds. By contrast, Axelar never takes custody of assets, so direct TVL comparisons are misleading. EigenLayer EigenLayer (~$5.1B TVL) and Symbiotic Symbiotic (~$0.3B TVL) are restaking protocols that provide economic security for Actively Validated Services—a model that could one day compete with Axelar if a cross‑chain AVS gains traction. Meanwhile, Morpho Blue Morpho Blue (~$7.3B TVL) operates as a permissionless lending primitive, entirely different in scope.
In terms of audit scope, Axelar’s three-auditor lineup is comparable to EigenLayer (Sigma Prime, Consensys Diligence, Cantina) and Morpho Blue (Spearbit, OpenZeppelin, Certora), suggesting robust code review. Chain coverage is Axelar’s standout metric: 50+ chains surpass any of these peers, none of which are cross‑chain messaging layers. This broad surface area, however, means that a vulnerability on any integrated chain’s gateway contract could have widespread impact—a risk not shared by single-chain protocols.
Verdict
Axelar delivers a reliable cross‑chain messaging backbone with extensive chain coverage and a clean security record. Its GMP and ITS enable a growing ecosystem of multichain applications, and the protocol has been battle‑tested since 2022 without incident. However, the opacity around its validator set and the lack of a quantifiable security metric prevent a higher rating. For developers building cross‑chain dApps, Axelar is a proven choice, but users should be aware of the trust assumptions embedded in its permissioned model. Rating: 7.8.
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