What Is CoinMarketCap?
CoinMarketCap tracks cryptocurrency prices, market caps, and trading volume. Learn how to read the metrics and cross-check data across aggregators.
Updated October 2026 · Reviewed by the PipeFlare team
CoinMarketCap is a cryptocurrency data website that lists coins and tokens with their prices, market capitalization, and trading volumes, ranked by market cap.
It gives readers a central dashboard to compare relative token sizes and aggregated prices, but it is purely an informational tracker rather than an exchange where assets are bought or sold.
Category
Market basics
Difficulty
Beginner
Where you'll see it
Market cap leaderboards, crypto data aggregators, price comparison pages, financial charts, research dashboards
First introduced
CoinMarketCap launched in 2013 and offered an early public crypto price API before Binance acquired CoinMarketCap in 2020.
About coinmarketcap
CoinMarketCap is a cryptocurrency data website that tracks prices, market capitalization, trading volumes, and 24-hour price changes. It operates as a data aggregator, not a cryptocurrency exchange. You cannot buy or sell coins on the site. Prices on CoinMarketCap are an average or weighted value built from many exchange prices, and coins are ranked by market capitalization. The platform launched in 2013 and offered one of the first public crypto price APIs of that period. Binance acquired CoinMarketCap in 2020.
How it actually works
The site organizes its primary table by ranking coins by market capitalization. Every entry on the main leaderboard shows an asset's current price, 24-hour percentage change, 24-hour trading volume, and total market capitalization. The site ranks assets by market capitalization, which equals circulating supply multiplied by the current price. This ranking shows a relative measure of size among tracked assets. A high position reflects a large mathematical product of available supply and recent trading quotes. It does not indicate quality, safety, or future performance.
Prices on aggregators are an average or weighted value built from many exchange prices. This aggregated price often differs from the exact execution quote you see when placing an order on a specific exchange. Live trading platforms include local bid-ask spreads, slippage, and trading fees that do not appear on a passive aggregator display. The price you actually get on an exchange order book can differ, because of spread, fees and slippage.
Trading volume shows the total estimated value of an asset traded over a set duration, typically 24 hours. Treat any single volume figure with caution. Certain exchanges report inflated numbers through wash trading. A coin with a high rank can still have thin volume on some venues.
Cross-checking data between CoinMarketCap and alternative aggregators like CoinGecko reveals regular variances in prices, volume, and rank. CoinGecko serves a similar tracking purpose and maintains its own public API and market tables. The two platforms frequently show slightly different numbers for the identical asset because they pick different data sources, exchanges and supply figures. A very small, new coin can show a large market cap if its circulating supply figure is inflated or unverified. An inflated or unverified circulating supply can artificially balloon a token's apparent market cap, making independent verification essential.
Market-wide indicators like Bitcoin dominance are also calculated and displayed prominently on aggregator dashboards. Bitcoin dominance represents Bitcoin's market cap divided by the total crypto market cap, multiplied by 100. Both CoinMarketCap and CoinGecko show it on their home pages and historical charts. See our guide to Bitcoin dominance. CoinMarketCap offers a free API tier with user registration, along with paid tiers that unlock higher request limits and expanded historical data windows. See our guide on Free crypto APIs.
Start here
- 1Navigate directly to the official [CoinMarketCap](https://coinmarketcap.com/) website by typing the address manually or using a secure browser bookmark to avoid lookalike phishing domains.
- 2Locate the primary ranking table and read the asset's circulating supply, 24-hour trading volume, and market capitalization rather than focusing solely on the unit price.
- 3Cross-check the circulating supply figure on a second source to confirm that the reported supply is not inflated or unverified.
- 4Cross-reference the reported market data against alternative tracking platforms like CoinGecko to confirm that trading volumes and exchange listings are consistent across independent sources.
- 5Remember that aggregator listings are informational records rather than safety endorsements, and never enter a seed phrase or private key into any market tracking website.
Strengths
- Provides a list of coins and tokens with aggregated prices, market caps, and trading volumes.
- Shows market capitalization and Bitcoin dominance on its home page and charts.
- Provides a free API tier with registration, with paid tiers for longer historical windows and higher limits.
Common misunderstandings
- Does not function as a cryptocurrency exchange, meaning users cannot buy or sell coins directly on the platform.
- Aggregated reference prices do not reflect venue-specific trading costs, bid-ask spreads, transaction fees, or order-book slippage.
- Listing inclusion carries no safety guarantee, as scam tokens and projects with unverified or inflated circulating supply metrics can appear on tracker tables.
Common questions
What is CoinMarketCap?
CoinMarketCap is a cryptocurrency data website that lists coins and tokens alongside their current prices, market capitalization, 24-hour volume, and price changes. The site launched in 2013 and was acquired by Binance in 2020. It serves as an informational tracker rather than a brokerage or exchange.
Is CoinMarketCap an exchange?
No, CoinMarketCap is a tracker and not an exchange. You cannot buy, sell, deposit, or trade cryptocurrencies on the platform. To buy or sell assets, you must use a separate exchange and manage your funds through a secure setup, such as those explained in our guide on What is a crypto wallet.
What does market cap mean on CoinMarketCap?
Market cap represents the circulating supply of an asset multiplied by its current unit price. It acts as a measurement of relative size across tracked cryptocurrencies.
Why do CoinMarketCap and CoinGecko show different numbers?
CoinMarketCap and CoinGecko pick different data sources, exchanges and supply figures. These methodology differences produce slight variations in reported prices, total market capitalizations, and trading volume figures for the same token. Comparing both sources helps verify data consistency.
Does CoinMarketCap have a free API?
Yes, CoinMarketCap offers a free API tier that requires basic account registration. The platform also maintains paid tiers designed for higher rate limits and deeper historical market data. For broader comparisons of data feeds, review our guide on Free crypto APIs.
Is a coin safe because it is listed on CoinMarketCap?
No, appearing on CoinMarketCap is not an endorsement or certification of security. Scam tokens can still be listed on aggregator tables. A tracker listing must never be treated as proof of legitimacy or financial safety.
Sources
Related guides
Ready to put this into practice?
Exchange sign-up bonuses pay both you and a referrer after a qualifying trade.