Arbitrum · Chain ID 42161 · ETH

Arbitrum NFT verification and token-gated Discord roles.

Run token-gated roles for a Arbitrum community from one dashboard. Arbitrum is one of 44 built-in networks, so there is nothing to configure: add a rule, post the verify panel, and NXT handles proofs and re-checks. Arbitrum projects often mix NFTs with ERC-20 governance or utility tokens, which is where Combo rules help: require an NFT and a token balance in one rule, even when the two live on different chains.

Arbitrum at a glance. What NXT supports here.

Chain ID
42161
Native coin
ETH
Block explorer
arbiscan.io
OpenSea data
Available: collection rules and floor bot
Sales detected
Paid in ETH or WETH
Status
Built in, featured network

What works on Arbitrum. Every rule type, plus the bots.

NFT rules

Contract, Token IDs, Quantity, and Trait rules read Arbitrum contracts directly. ERC-721 and ERC-1155 are both supported, with token IDs for ERC-1155, and trait rules read ERC-721 metadata from tokenURI.

Token and coin balances

ERC-20 rules gate on any fungible token deployed on Arbitrum, with a minimum and optional maximum. Native balance rules require a minimum ETH balance, summed across a member's wallets.

Staking, Combo, Custom API

Count tokens held in a Arbitrum staking contract, combine up to five conditions across Arbitrum and other chains, or let your own HTTPS endpoint decide eligibility.

OpenSea collection rules

OpenSea covers Arbitrum, so you can reference a collection by its slug and NXT counts holdings across its contracts. The floor bot can report floor price, owners, and 24 hour volume for Arbitrum collections.

Sales bot

Sales paid in ETH and in WETH are detected from on-chain transfers and posted with the token image, price, buyer, seller, an OpenSea link, and a arbiscan.io transaction link.

Art bot and real-time checks

Show any Arbitrum token with its image and traits on request. NFT transfers on gated Arbitrum contracts trigger a re-check of the sender and receiver within seconds, on every plan.

How Arbitrum holders verify. No wallet connect.

Members never connect a wallet or sign a message. To prove a wallet, a member clicks Verify in your channel, enters an address, and sends a tiny, unique amount from that wallet back to the same wallet. On Arbitrum, that means a self-transfer of a fraction of ETH: the coin returns to the sender, so the only cost is the network fee, paid in ETH on Arbitrum.

The member can paste the transaction hash from arbiscan.io, or leave it blank and NXT searches recent blocks for the transfer. Members do not have to prove on Arbitrum specifically: any listed network works, so someone holding Arbitrum NFTs can prove the same address on whichever network they have gas on, because an EVM address is the same on every chain. Where the server enables it, an OpenSea profile bio code is a second option.

A wallet proven once works in every NXT server. Holders who keep tokens in a cold wallet can delegate the full wallet on delegate.xyz (v2) to a hot wallet, and NXT reads those delegations on Arbitrum, so the cold wallet never has to sign or send anything.

Gate a role on Arbitrum. Three steps.

  1. Add NXT and pick the role

    Add NXT to your server and move its role above the holder roles it will manage. In Dashboard > Token gated roles, click Add role and choose a rule type.

  2. Select Arbitrum

    Choose Arbitrum as the network and paste the contract address, which you can copy from arbiscan.io. NXT reads the contract and, for ERC-20 tokens, fills in the symbol and decimals.

  3. Post the verify panel

    Post the verify panel in a channel members can see. Members click Verify once, and NXT re-checks them every 2 days on Free, daily on Growth, and hourly on Pro, plus on every NFT transfer.

Arbitrum RPC. Public by default, yours if you want.

Arbitrum works out of the box on NXT's public RPC endpoints with automatic failover between them. If an endpoint fails or times out, NXT moves to the next one, and if every endpoint fails the result is unknown, which never removes a role.

If your project has its own Arbitrum endpoint, for example a paid plan with higher limits, add it in Dashboard > Networks with chain ID 42161. It is used only for your server's checks, proofs, and tests, NXT's public endpoints stay behind it as a fallback, and the dashboard shows only the host so an API key in the URL stays hidden. Removing it switches your server back to the public endpoints without touching your rules.

Arbitrum questions. and straight answers.

Do Arbitrum holders need to connect a wallet to verify?
No. Members prove a wallet by sending a tiny unique amount from the wallet to itself, for example in ETH on Arbitrum, and pay only the network fee. The transaction hash is optional. There is no wallet connection, no signature, and no external site.
Can NXT gate roles on an OpenSea collection on Arbitrum?
Yes. OpenSea provides data for Arbitrum, so an OpenSea collection rule can reference a collection by slug and count holdings across up to ten of its contracts. The floor bot also works for Arbitrum collections listed on OpenSea.
Does the sales bot post Arbitrum sales?
Yes. Sales paid in ETH or WETH on Arbitrum are detected from on-chain transfers and posted with the token image, price, an OpenSea link, and transaction link. Sales paid in other tokens, such as USDC, are not detected.
How quickly do roles change when a Arbitrum NFT is sold?
NXT watches transfers on the NFT contracts in your rules, so the seller and buyer are re-checked within seconds on every plan. ERC-20, native balance, and custom API rules update on the scheduled sweep: every 2 days on Free, daily on Growth, and hourly on Pro. Roles are only removed when a check definitively shows the member no longer qualifies.
Can I use my own Arbitrum RPC endpoint?
Yes. Add it in Dashboard > Networks with chain ID 42161. It is private to your server, NXT's public endpoints remain as a fallback, and only the host is displayed.

Gate Arbitrum roles today.
Free to start.