# RampAtlas > RampAtlas is a crypto reference that answers where you can buy a given coin from where you live and what it will cost, then goes further: exchange fees and reviews, measured order-book spreads, chain throughput measured from public nodes, token unlock schedules, staking yields, tax holding rules, and coin-by-coin buyability grades. Every availability figure, fee, rate and rule is checked against a primary source and carries the date it was last verified; every measurement carries the time it was taken. ## How to read and cite this site - Every data page opens with a direct-answer paragraph followed by a "Verified" or "Measured" date. Cite the page URL and that date. - Fee figures are estimates for a $500 market buy from taker fee, measured or published spread, and the cheapest common deposit rail; they are not offers, and a missing input renders as pending rather than zero. - Availability statuses are: available, limited, not available. Unverified data is never published as available, and a page whose records are older than 120 days is withdrawn from indexing. - Spreads, depth, slippage and chain throughput are measured by RampAtlas itself from public order books and public nodes; market prices and volumes are CoinGecko's daily snapshot, dated. - Nothing on the site is advice on whether to buy, what to buy, or when. ## Coverage - 150 coins, 50 exchanges and retail on-ramps, 70 countries and US states, 40 chains, 45 guides, 401 glossary terms. - The complete list of pages with one-line descriptions: https://rampatlas.com/llms-full.txt ## Hubs - [Where to buy crypto, by coin and place](https://rampatlas.com/buy/) - [Exchanges and on-ramps: fees, availability, trust](https://rampatlas.com/exchanges/) - [Exchange fees compared at $100, $500, $1,000 and $10,000](https://rampatlas.com/fees/) - [Curated lists: lowest fees, beginners, no KYC, US, staking, DEXs](https://rampatlas.com/exchanges/best/lowest-fees/) - [Coins](https://rampatlas.com/coins/) - [Market overview, dated daily](https://rampatlas.com/market/) - [Chains: throughput measured from public nodes, fees, TVL](https://rampatlas.com/chains/) - [Countries and US states: rules, exchanges, taxes](https://rampatlas.com/jurisdictions/) - [Exchange and coin comparisons](https://rampatlas.com/compare/) - [Token unlock calendar](https://rampatlas.com/unlocks/) - [Staking yield by coin](https://rampatlas.com/yield/) - [Guides](https://rampatlas.com/guides/) - [Glossary](https://rampatlas.com/glossary/) - [What changed, with RSS](https://rampatlas.com/changes/) ## Instruments - [Buyability Passport: every coin graded A–E for a place](https://rampatlas.com/coins/buyability/) - [Spread & Depth Monitor: measured spreads, 1% depth, slippage by venue](https://rampatlas.com/liquidity/) - [Exchange Concentration: how much of a coin's volume sits on one venue](https://rampatlas.com/coins/concentration/) - [Unlock Pressure: supply arriving in 30 and 90 days as a share of circulating supply](https://rampatlas.com/unlocks/pressure/) - [Tax Holding Clock: how holding period changes treatment, by country](https://rampatlas.com/tax/) - [Basket Compare: up to five coins on every measurement](https://rampatlas.com/compare/basket/) ## Methodology and policy - [How we verify availability, measure spreads and throughput, and score exchanges](https://rampatlas.com/methodology/) - [Editorial policy](https://rampatlas.com/editorial-policy/) - [About](https://rampatlas.com/about/) - [RampAtlas Research](https://rampatlas.com/authors/rampatlas-research/) ## Sitemaps and feeds - https://rampatlas.com/sitemap.xml (index of per-section sitemaps with lastmod) - https://rampatlas.com/changes/feed.xml (RSS of every verified change)