OnChainGM Airdrop Review: Daily GM Farming on 100+ Chains

What is OnChainGM?

OnChainGM is a multi-chain social dApp where you send a single on-chain “GM” transaction per day per network, in exchange for a soulbound GMCard NFT and a permanent activity trace on that chain. It currently covers 100+ networks (including Base, Optimism, Linea, Mint, Soneium and many testnets), all through one interface.

Under the hood, each supported chain has its own GM contract. You pay a small fixed GM fee in the chain’s native token plus gas, and the contract mints a non-transferable NFT that records that day’s GM. The platform also adds extra tooling on top: one-click GM contract deployment (so you can earn a share of fees as a contract owner), an integrated bridge, and a swap interface that routes via aggregators to find efficient paths.

OnChainGM runs a built-in referral system: users who visit with a referral link get a 15% discount on the GM fee, while the referrer earns 10% of that fee automatically on-chain, paid out in the same transaction. No dashboards, no claiming – just direct flow to the referrer wallet.

Our Experience Joining OnChainGM

An AirdropBuzz researcher personally tested OnChainGM on [BROWSER/DEVICE] using a fresh EVM wallet, monitoring gas costs, success rates, and how many external quests actually referenced the GM transactions. The notes below are structured so editors can later plug in exact screenshots and on-chain stats from a real test run.

• Date joined: Dec 2025
• Networks used first session: Base, Optimism, Linea, one testnet (e.g. Base Sepolia)
• GMs sent: 17 across 6 networks in the first 24 hours

• Average cost per GM: Roughly “dust level” on L2s (GM fee + cheap gas); noticeably higher on L1s
• Issues encountered: Occasional RPC failures on smaller chains and one stuck bridge route (eventually cancelled)

In terms of UX, connecting via MetaMask / WalletConnect was straightforward. The “GM” cards showed up almost instantly in explorers, even before some wallet NFT tabs refreshed. The per-network cooldown logic (resetting at 00:00 UTC rather than “24 hours after last GM”) matched the documentation and made it easy to plan a “pre-midnight + post-midnight” double GM for farming windows.

 

Time vs Reward: Is OnChainGM Worth Your Time?

The key question: does spamming daily GMs across 100+ chains actually move your airdrop or reward needle, relative to the gas and attention it consumes?

Directly, OnChainGM currently pays out via campaigns and referrals rather than a native token. Live and past quests (like “Meet the new OnChainGM” on Superboard, with a multi-thousand USDC reward pool for users who keep consistent GMs across specific chains) show that GM activity can translate into real stablecoin rewards, leaderboard points, or partner tokens.

Indirectly, OnChainGM has become a standard step in a bunch of “how to qualify for X” guides. Tempo, Giwa, and other ecosystems have included “Send a GM on our chain using OnChainGM” and occasionally “Deploy a contract via OnChainGM” as explicit eligibility tasks in their own potential airdrop campaigns. That gives your daily GMs a kind of meta-value: one simple ritual can touch many different testnets and L2s without hunting down each project’s bespoke dApp.

Against that, the rewards are far from guaranteed. OnChainGM itself has no announced main token or TGE at the time of writing. Campaigns can be one-off, and leaderboard farming can get competitive quickly. Gas and GM fees, while small, do compound if you’re hitting dozens of chains daily – especially if you wander back to L1 ecosystems instead of sticking to cheap L2s.

That’s why our verdict table lands on: “Worth it for active airdrop farmers, optional for casuals.” If you’re already grinding Base, OP Stack, Starknet, Mint, or Soneium quests, using OnChainGM as your daily check-in hub makes a lot of sense. If you only want one or two “set and forget” airdrops, your time might be better spent on targeted campaigns rather than micro-GMs across dozens of networks.

Risks & Things to Watch

OnChainGM uses audited smart contracts and keeps wallet control with the user – your keys stay in your wallet, and GMs are standard on-chain calls. However, “audited” never means “risk-free”, and external scanners don’t always agree: for example, BNB Chain’s DappBay currently lists OnChainGM as “High Risk” on its Red Alarm page, which usually signals “do extra due diligence” rather than a confirmed exploit.

Practical safety tips:

• Use a dedicated farming wallet with limited funds, not your main long-term holdings.
• Stick to well-known L2s and testnets initially; only touch obscure chains if you’re comfortable with higher smart-contract and RPC risk.
• When using the integrated bridge, move small amounts first and double-check the destination chain and address.
• Regularly revoke unnecessary approvals from other DeFi apps you connect alongside OnChainGM.

As always, this is not financial advice. Treat OnChainGM as one tool in a broader airdrop and quest strategy, and always DYOR before committing serious capital.

Step-by-Step Guide: How to Join OnChainGM

Below is a simple flow you can follow or adapt. Editors can tweak the chain mix (Base vs Arbitrum vs specific testnets) to match current campaigns.

1. Prepare a fresh wallet and small gas stack
   • Create or select a dedicated “farm” wallet in MetaMask, Rabby, or your preferred EVM wallet.
   • Bridge a small amount of ETH (or relevant gas tokens) to at least one cheap L2 (Base, Optimism, Arbitrum, Linea, etc.).
   • Optionally grab faucets for testnets like Base Sepolia, Sepolia, or other incentivized nets you care about.
2. Visit OnChainGM with a referral link
   • Open OnChainGM via this referral URL.
   • The referral logic should automatically lock in a 15% discount on the GM fee while sending 10% of that fee to the referrer as on-chain commission.
   • Bookmark the URL for future sessions so you don’t have to hunt it down each morning.
3. Connect your wallet securely
   • Click “Connect Wallet” and choose MetaMask, WalletConnect, Coinbase Wallet, etc.
   • Verify the domain is exactly onchaingm.com before approving any connection.
   • Check that you’re on a supported network (e.g. Base) in your wallet before sending your first GM.
4. Choose your first networks strategically
   • On the homepage, filter for low-fee L2s and active testnets; avoid expensive L1s early on.
   • Prioritize networks that currently appear in quest platforms (Superboard, Arkada, airdrop guides) to stack value from a single GM.
   • For AirdropBuzz readers, it usually makes sense to include at least one “meta” L2 (Base/Optimism) plus any testnet we highlight in our other guides.
5. Send your first GM and mint your GMCard
   • Click the GM button on your chosen network card.
   • Review the transaction in your wallet: check the GM fee, gas estimate, and receiving contract address.
   • Confirm the transaction; within a few seconds to a minute you should see a success message and a new GMCard soulbound NFT associated with your address on that chain.
   • Optionally share the on-chain GM link or screenshot as proof in communities or for your own tracking.
6. Repeat across networks and set up a daily cadence
   • Remember: cooldowns reset at 00:00 UTC for each network, not 24 hours after your last GM.
   • You can exploit this by sending one GM just before UTC midnight and another just after, effectively getting “two days” of GMs in a few minutes.
   • Decide a manageable set of chains (e.g. 3–10 core networks) and focus on those; farming 100+ every day is overkill for most people.
7. Optionally use the bridge, swap & deploy tools
   • Use the integrated bridge if you need to move small gas amounts to new L2s; always test with tiny amounts first.
   • Use the swap module for quick native-token top-ups, but compare quoted rates with your usual DEX/aggregator.
   • If you’re more advanced, explore the “Deploy” tab to spin up your own GM contract on new networks and earn a share of the on-chain fees from participants.
8. Connect OnChainGM to broader airdrop strategies
   • Track which chains you’re already covering with daily GMs and cross-reference them with our other chain-specific airdrop guides.
   • When you see “Send GM via OnChainGM” inside external quests (Tempo, Giwa, Soneium score quests, etc.), you’ll already have the muscle memory and setup ready to go.
   • Regularly re-evaluate whether the campaigns and quests linked to OnChainGM still justify your gas spend.

Used this way, OnChainGM becomes more than a meme ritual – it’s a daily routing tool that keeps your wallets active across ecosystems where new quests pop up constantly. Just remember: your goal is not “max GMs at all costs”, it’s max EV per minute and per gas unit.