Bane Labs has reduced fees on the native bridge connecting Neo N3 and Neo X, and in a separate change has raised the limit caps governing how much NEO and GAS can be moved across it. The fee cuts took effect at the end of May, lowering most transfer costs by up to 90%, while the higher caps double the bridgeable NEO limit to 200,000 and quadruple the GAS limit to 400,000.

Bane Labs is the collaborative development entity behind Neo X, comprising Neo Global Development, AxLabs, and Neo SPCC. The native bridge, which moves native assets such as GAS and NEO between the two chains, launched alongside Neo X MainNet on July 25, 2024, with a flat fee of 0.1 GAS in either direction. That launch fee is the baseline for the new pricing cuts.

Lower, asymmetric fees

For transfers from Neo N3 to Neo X, bridging GAS or NEO now costs 0.01 GAS, down from 0.1, and cross-chain messages now cost 0.035 GAS, down from 0.1.

In the reverse direction, from Neo X to Neo N3, GAS and NEO transfers each cost 0.03 GAS, and messages cost 0.035 GAS. All bridge fees are denominated in GAS in both directions, and the updated figures are reflected on the live bridge app.

The new pricing makes the Neo N3-to-Neo X direction cheaper than the reverse, representing a deliberate design choice.

The bridge relies on a relayer, the off-chain service that watches for a deposit on one chain and submits the matching transaction on the other. Bane Labs sets each direction’s fee closer to the relayer’s actual transaction cost on the destination chain. Because submitting transactions on Neo X is currently cheaper than on Neo N3, the Neo N3-to-Neo X direction incurs the lower fee.

Higher caps for exchange flows

Separately, Bane Labs raised the native bridge’s limit caps for NEO and GAS, which restrict how much of each asset can be bridged. The NEO cap rose from 100,000 to 200,000, and the GAS cap rose from 100,000 to 400,000.

The increase responds to demand from market makers serving exchanges that have integrated Neo X, including Kraken and BitMart, whose liquidity needs were constrained by the prior 100,000 caps. Guil. Sperb Machado, founder of AxLabs, tied the change to that demand and to the risk controls the caps are meant to provide. Machado said:

This is a direct demand from Market Makers that deal with demands in exchanges like Kraken, BitMart, and others. One of the reasons why we have these limit caps on the native bridge, especially with the NEO and GAS tokens, is due to security and risk management.

The caps were introduced as a risk-management measure when the bridge first went live, beginning with a 100,000 GAS limit at the MainNet launch. The bridge was later extended beyond native assets to NEP-17 and ERC-20 tokens, and the architecture now spans three transfer types: the Native Bridge for native assets, the Token Bridge for tokens, and the Message Bridge for cross-chain messages.

Together, the lower fees and higher caps reduce the cost of routine transfers for users and agents while giving market makers room to move the larger volumes that exchange integration requires.

The full announcement can be found at the link below:
https://x.com/ax_labs/status/2058805548141703207

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