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2026-09-24 · Infrastructure & bridges

Monad and its bridges: what actually sits on the chain

Data as of 24.09.2026 unless another date is given next to a figure.

Verdict: usable, with limits. The chain has had zero halts in ten months. Its dollars are real USDC issued by Circle, with no intermediary. ETH on Monad, however, is a bridge IOU — from a ten-month-old bridge secured by two independent verifier networks. Monad works for a capped slice of capital, and ETH held there should be treated as a separate bet on the bridge.

What it is

Monad is an EVM-compatible L1. Mainnet has been live since 24.11.2025, with 300 ms blocks and roughly 200 validators. Apart from MON, it has no native assets: dollars, ETH and BTC all arrive over bridges, and each asset has its own bridge — so the analysis has to go asset by asset, not chain-wide.

Asset on MonadHow it gets thereWhom you trust
USDCCircle CCTP: burn on one chain, mint on anotherCircle only, as with USDC anywhere
WETHMonad Native Bridge: Wormhole NTT standard, "2/2" verification (Wormhole + Axelar)both verifier networks at once
USDT, AUSD, USDe, WBTCLayerZero OFT via Stargateeach token's LayerZero verification config (not reviewed here)
wstETH, cbBTCChainlink CCIPthe Chainlink network (not reviewed here)

Source: Monad Docs, "Tokens and Bridges", read 24.09.2026 (the page carries no update date).

This note covers three bridges: Monad Native Bridge (backing WETH), Circle CCTP (backing USDC) and Across. Across is an intent-based fast bridge: a third-party relayer fronts the asset on the destination chain from its own inventory and the protocol reimburses it later. Across is a road, not a vault — nothing sits on it.

Findings

1. ETH on Monad is a bridge IOU, and the bridge is less than a year old

Monad's docs list WETH (0xEE8c…1242) as "NTT 2/2" via MonadBridge. The bridge launched with mainnet on 24.11.2025, built on Wormhole's NTT standard and Axelar's General Message Passing. "2/2" means a transfer only clears once both networks independently attest to it. Compromising one is not enough: minting unbacked WETH on Monad requires breaking both. The trade-off is liveness — the bridge needs both networks up, and if one stalls, so does the bridge.

The standard bridge-architecture screen contradicts itself here. It rejects committee bridges without real validator slashing and names Wormhole (13/19) and Axelar (~75 PoS validators) explicitly. But it doesn't consider the case where two such committees must both sign off. The same screen puts bridges younger than 12 months in a caution zone: the median time to exploit for new bridges is 6–18 months. This one is ten months old.

Sources: Monad Docs · Wormhole, 24.11.2025 · Wormhole, "Deep dive: NTT" (dual-verifier design, threshold and rate limits)

2. Dollars on Monad are real Circle USDC, no bridge in between

USDC on Monad (0x7547…b603) is issued via Circle CCTP: burned on the source chain, freshly minted on Monad by Circle. There's no bridge IOU; the risk is the same as USDC on Ethereum — the issuer can freeze an address. CCTP's burn-and-mint design is generally classed as a safe architecture, since there is no wrapped-asset trust involved.

Source: Monad Docs

3. The chain: 100% uptime over ten months — on Monad's own word

Monad's blog of 31.08.2026 reports no outages or halts since 24.11.2025, 62,829,834 proposed blocks to 30.08.2026, a 99.903% successful-proposal rate and 99.999% finalisation. For comparison, 2026 saw halts on Base (25.06, ~108 minutes), MANTRA (21.08) and Radix (over 10 days from 31.08). Independent sources report no Monad halts — but we found no independent uptime measurement either, so the figure is Monad's own.

Sources: Monad Blog, 31.08.2026 · CoinDesk, 21.08.2026 (MANTRA) · Base outage write-up, 06.2026

4. Who can halt the chain — not measured

A block passes with support from more than two-thirds of stake, so anyone with more than a third can halt the chain. The Monad Foundation is delegating 15–25bn MON to validators in year one, against a total supply of 100bn. We have not measured what share of all staked MON that represents. If it's above a third, a single delegator can stop the chain (that is exactly the case on Hyperliquid, where the foundation holds 48.9% of stake). Separately, a large MON unlock falls on 24.11.2026, and sources disagree on its size by 2.5x — 16.6bn (Tokenomist) vs. ~6.66bn (unlocks.app).

Sources: Monad Blog, 31.08.2026 (⅔ threshold) · Monad, "MON Tokenomics Overview" · Tokenomist · unlocks.app

5. Across: no user funds lost, but a relayer was exploited in July 2026

On 17.07.2026 a bug in a relayer's off-chain code on Solana (Risk Labs) let an attacker spoof 1,627 non-existent deposits. The relayer filled 581 of them and lost about $4.5m gross, under $4m net. The hole was closed within five hours and the attacker returned 331.8 ETH. User funds were untouched: in Across, the relayer carries the in-flight risk, not the user. Which is why Across works as a road, not as storage.

Sources: crypto.news · The Cryptonomist, 24.07.2026 · Across Blog (mechanics on Monad)

6. Scale

Monad TVL is $1.01bn, vs. $1.42bn on Arbitrum and $52.96bn on Ethereum (DefiLlama, 24.09.2026). It's a small venue: exiting a large position runs into on-chain market depth and bridge limits.

Source: DefiLlama API /v2/chains, 24.09.2026

What could go wrong

EventWhat is lostHow likely
Both bridge verifier networks compromised; unbacked WETH mintedWETH on Monad loses its backing; USDC unaffectedlow: requires two independent compromises. But the bridge is 10 months old and new bridges' median time to exploit is 6–18
One verifier network (Wormhole or Axelar) goes downcanonical ETH exit from Monad frozen for the duration; value intactmedium — the price of the 2/2 design. 2026 saw incidents in apps built on Axelar (Secret 10.06, CrossCurve), not in the core
Monad chain haltaccess to everything on the chain for the duration; protocol liquidations after restartzero in 10 months. Who holds a blocking third of stake is unmeasured
Circle freezes an address or pauses CCTP on MonadUSDC at that address / the CCTP exitlow, same as USDC elsewhere

What we don't know

  • The Monad Foundation's share of total stake. Obtainable from the staking contract or a validator explorer.
  • WETH withdrawal rate limits, and who can upgrade the WETH NTT manager contract on Monad. Not in public announcements — it needs a contract read.
  • LayerZero verification settings for USDT/AUSD/WBTC on Monad. Holding AUSD or USDT there means a different bridge and a separate review.
  • How a young bridge behaves in its first real stress event. Ten incident-free months is too short to conclude much.

How to cap the exposure

A sensible discipline for a venue like this:

  1. Everything on Monad combined — no more than 5% of capital (a typical per-venue cap).
  2. ETH on Monad is a Wormhole + Axelar IOU; count it against a single-bridge cap (typically up to 10% of capital) together with any other assets on the same bridges.
  3. Hold dollars as native USDC (CCTP), not USDT/AUSD via LayerZero, until those are reviewed.
  4. Use Across for transit only: funds are in flight for minutes and nothing sits on it.

What would revoke the verdict (any one is enough): a Monad halt longer than 1 hour · the docs switching WETH verification from 2/2 to a single verifier · an exploit or pause of the Monad Native Bridge or the WETH NTT manager · loss of user (not relayer) funds on Across · Circle discontinuing CCTP on Monad · a measurement showing one delegator above a third of stake, unchanged after 90 days.

What to watch

24.11.2026 is the bridge's first anniversary and the date of a large MON unlock. Worth re-reading "Tokens and Bridges" (WETH verification) and checking the foundation's stake share.

Forecasts made on 24.09.2026:

  • Monad will see no block-production halt through 31.12.2026 (base: zero halts over 62.8m blocks, 24.11.2025–30.08.2026).
  • On 24.11.2026 Monad's docs will still list WETH as "NTT 2/2". If not, the verdict is withdrawn.

Chain and bridge documentation changes; the read date sits next to each source.

Research for information only. Not investment advice.