How We Verify Figures

Primary Sources

The comparison pages ranking for these queries mostly publish orderings with no dataset behind them, which is why we print a source and a date next to every number. Specifically:

• GMGN's official documentation (docs.gmgn.ai) for the 1% trading fee, priority and tip fee limits, slippage guidance, error codes, wallet behavior and withdrawal rules. Every doc page is also available as Markdown, which is what we read rather than scraping the rendered site.
• The DefiLlama fees API for revenue, market share, per-chain splits and referral payout rates, queried directly rather than taken from search snippets. Trailing windows are stated with the date they were pulled. The worked example is our terminal fee and market-share snapshot, which prints the endpoint, the slugs and the arithmetic so anyone can reproduce the figures rather than trust them.
• GeckoTerminal's public API for the live prices and charts on the markets pages, fetched in the browser on each page load.
• Competitor documentation (docs.axiom.trade, Photon's own interface) for the rival fee rates we could reach in the comparison hub. We do not restate a competitor's fee from a third-party article. Several terminals, Trojan, Maestro, BONKbot and fomo among them, publish their terms only behind a login or behind infrastructure that refuses automated requests, so their rates are labeled unverified on our pages instead of carrying a number borrowed from a review site.
• GMGN's terms of service and privacy policy for what those documents say about custody, governing law and restricted countries, quoted from the documents themselves rather than summarized secondhand. We report what the documents state on the date we read them. We do not draw legal, regulatory or tax conclusions from them, and nothing on this site is legal, tax or financial advice.

What We Do When Sources Disagree

They disagree more often than you would expect. GMGN's wallet documentation says private key export is prohibited on every chain; its terms of service say you retain control of your private keys. When two primary sources conflict, we publish both and say which one matches observable behavior instead of picking the flattering one.

We also refuse to publish a number we can tell is broken. DefiLlama's BullX fee adapter reports $192 over 30 days because it is summing one-lamport markers after fee collection moved to an untracked address, so we leave BullX out of fee tables and say why rather than printing a figure that would read as a business collapse.

Review Cadence

Every guide carries a Last Updated date. Pages quoting exact fees, error codes or market-share figures also carry a Last Verified date, which is the last time a person re-checked the figure against its source.

Fee, custody and troubleshooting pages are re-checked monthly, because those are the ones where being stale actually costs a reader money. Comparison and ecosystem pages are re-checked quarterly or whenever the DefiLlama series moves materially. Market data widgets fetch fresh on every page load.

Limitations

Some things are simply not published, and we leave those gaps visible. GMGN's documentation contains no referral tier thresholds, no payout cadence and no minimum payout threshold, so we say so rather than inventing a table. Chain support on Monad, MegaETH and Hyperliquid L1 shows in DefiLlama's data but appears nowhere in GMGN's docs, so we describe it as visible in the data and undocumented by GMGN. We also do not publish company facts we cannot source: headcount, ownership, funding status and the terms of any commercial arrangement between third parties stay off these pages unless a dated primary source is linked beside them. Trailing-window figures drift, sometimes within days, which is why every one of ours carries the date it was pulled: on DefiLlama data read 6 August 2026, one month, October 2025, accounted for 31% of GMGN's trailing-year fees. Where a claim rests on one secondary report, we name the report.

Reporting Outdated Figures

If a figure here looks wrong, tell us. The fastest route is a direct message to @Concept211 on X or an email through the contact page. Include the URL, the figure and the source you are comparing against, and we re-verify and update within 48 hours on average.

Editorial Independence and Disclosure

GMGNGuide earns from GMGN's referral program, disclosed in full on the referral page and the about page. GMGNGuide is not affiliated with GMGN, and that referral relationship does not decide what we publish. Axiom's documented rate is lower than GMGN's and it collected more than twice GMGN's fees on the 30 days to 6 August 2026, and we say so on the comparison hub. GMGN's documentation states that private key export is prohibited on every chain, and we lead the security section with it. We would rather be accurate than favorable, because the alternative is worth less to everyone.