Coinmarketcap
Coinmarketcap combines crypto market data with checks on reported prices
Coinmarketcap aggregates cryptocurrency prices and market statistics, with checks that can exclude unusual prices or markets affected by trading restrictions. Its asset pages connect headline prices with individual markets, supply figures and historical charts. Those views answer different questions: what the wider market reports, where activity occurs and how an asset’s valuation changes. Watchlists support ongoing monitoring, portfolio tools track recorded holdings and an API supplies data to software. A market reference differs from an executable quote. A displayed price does not establish that a particular exchange can fill an order or permit a withdrawal.
The short version: An aggregate crypto price describes the wider market, while an executable quote depends on one venue’s liquidity and access conditions.
Exchange reports and price exclusions
Exchange data supplies the underlying market prices, which the platform processes before presenting an aggregate reference. A market pair identifies the assets exchanged against each other. Converting pair prices into a common currency makes comparisons possible across markets with different quote assets. The aggregate price is a volume-weighted average of eligible market pair prices, so pairs with higher trading volume have more influence.
Some reports remain visible without contributing to the aggregate price. Disabled deposits or withdrawals can make a market less representative because traders cannot move assets normally. Geographic access restrictions can also separate a market from wider trading activity. Algorithms can exclude significant price outliers relative to other pairs for the same asset. An excluded price therefore describes a specific market observation, not necessarily a usable opportunity elsewhere.
Asset research, monitoring and recorded holdings
Asset pages bring together quotes, historical performance, supply information and market listings. Their breadth supports initial comparisons; individual market rows provide the detail needed to understand differences between venues.
A watchlist narrows monitoring to selected cryptocurrencies. Adding an asset records an interest in following it, without recording a purchase or a holding.
The portfolio feature instead tracks holdings and performance using transaction records, supported on-chain addresses or supported exchange connections. Manual entries and imported records serve the same accounting purpose through different inputs. An entered purchase changes the tracker’s records; it does not execute a purchase. The accuracy of the displayed position depends on the information available to the tracker. This distinction matters when comparing a portfolio balance with assets held elsewhere.
The API, an application programming interface, supplies structured data for software. It supports repeated retrieval and analysis where browsing individual asset pages would require manual work.
What does market capitalization measure?
Coinmarketcap calculates a cryptoasset’s circulating market capitalization by multiplying its reference price by its circulating supply. This relationship explains why a low price per token does not establish a small overall valuation. The quantity in circulation matters equally to that calculation. It also means that changing the supply estimate can change market capitalization even without a price move.
Circulating supply approximates assets in public hands. Total supply includes existing assets after verified burns, while maximum supply concerns the estimated lifetime limit. Locked or insider allocations generally receive different treatment from publicly circulating assets. These distinctions affect rankings and comparisons between valuations. Market capitalization is a valuation calculation, rather than a measure of cash deposited into an asset or available for withdrawals.
Can high trading volume establish liquidity?
High trading volume alone cannot establish how easily a new order will execute. Volume describes trading activity over a period. Liquidity describes the ability to buy or sell without substantially moving the price. An order book, the collection of available buy and sell orders, helps determine that capacity. Past turnover and currently available orders answer different questions.
The Liquidity Score evaluates simulated orders against market depth. Slippage is the difference between the expected price and the execution price; limited depth can increase it. The Confidence indicator separately evaluates reported volume using inputs that include liquidity, web traffic and trading data. Neither indicator establishes that withdrawals work or that an exchange meets every requirement of a particular user.
A withdrawal restriction changes a price comparison
Consider a hypothetical comparison in which one exchange reports a higher price than other markets for the same asset. The price difference, withdrawal status and exclusion flag are all hypothetical. The reader initially expects the higher quote to describe an accessible market with normal asset movement.
The reader compares the asset identity, quote currency and observation time, then examines the market’s exclusion notice and the exchange’s withdrawal status. The observed state differs from that expectation: withdrawals are suspended and the market price carries an exclusion flag. The comparison now identifies a restricted market quote, rather than evidence of an accessible price advantage.
If the exchange reports restored withdrawals, the reader waits until withdrawal availability for the relevant asset and account can be verified before repeating the comparison. A fresh price comparison can then establish whether the difference remains. Restored withdrawals alone do not prove that the aggregate will immediately include the pair. Continued suspension, a mismatched asset or an unexplained exclusion prevents that quote from supporting the intended comparison. The reader sets aside the quote while withdrawals remain suspended; the comparison does not establish that a trade can complete.
How much historical data can the API provide?
Historical coverage depends on the requested dataset, the asset’s available history and the API plan’s access permissions. Historical quotes and OHLCV data support different analyses. OHLCV means open, high, low, close and volume: measurements that summarize trading within a defined interval. Endpoint access, history depth and request allowances vary across plans, so an API subscription does not imply access to every dataset.
Comparisons also require consistent identifiers, currencies and timestamps. Cryptocurrency symbols are not necessarily unique, making the platform’s asset IDs useful for repeated retrieval. A successful response establishes that the request returned data; the returned data timestamps and interval identify the period those values describe. The response status timestamp records when the server processed the request. Reusing an old response without preserving that context can turn a historical observation into a misleading apparent current price.
Aggregate references and venue-specific quotes
Aggregate data suits market monitoring because it combines observations across venues. A direct exchange view answers a narrower question about that venue’s available orders and account conditions. Coinmarketcap also provides DEX Mode for supported Solana and BNB Smart Chain tokens, routing trades through third-party decentralized exchanges with a supported wallet. This trading interface is separate from portfolio recordkeeping. Network and underlying protocol fees still apply, and trading restrictions can affect token availability. A blockchain explorer serves another purpose: inspecting recorded transactions and addresses, rather than establishing a market-wide executable price.
The appropriate stopping point depends on the task. Broad research can end with a consistent comparison of prices, supply measures and market activity. Execution requires a venue-specific quote and the applicable trading and transfer conditions. The same distinction applies to tracking: a recorded holding describes the portfolio’s inputs, while the underlying account or address establishes the assets held. An aggregate remains useful for comparison even when a direct venue view is necessary for execution.
Things people ask about Coinmarketcap
What do the asterisks beside market prices mean?
A single asterisk identifies a price excluded because it may not represent a freely accessible market price. Three asterisks identify a significant price outlier. Two asterisks identify market-pair volume excluded from the asset’s total because zero trading fees or significant trading incentives can encourage artificial activity. This exclusion does not remove the pair’s volume from the exchange’s total.
Does the 24-hour percentage change reset at midnight?
The 24-hour percentage change uses a rolling period measured backward from the current time. It does not represent a calendar day that resets at midnight. A daily chart candle can therefore cover a different interval from the displayed rolling change.
Which time zone applies to the market data?
Market data uses UTC unless a display specifies otherwise. API timestamps also use UTC, which helps keep observations comparable across locations. A local calendar date may differ from the UTC date for the same instant, so the time-zone designation matters when comparing records.
Is a listed cryptocurrency approved as a safe investment?
A listing means that the asset meets the platform’s applicable listing criteria, not that it has received investment approval. Inclusion does not establish the merits of the project. Price history and market visibility describe available information without resolving every question about an asset’s risks.
Do I need an API key for every data request?
Some public API endpoints allow requests without an API key. Access to other endpoints and higher allowances requires authenticated access under an applicable plan. Keyless access covers a selected set of functions rather than the entire data catalog.
How should a missing circulating market cap be interpreted?
A question mark beside circulating supply or market capitalization indicates that the platform has not sufficiently verified the supply information. It does not mean the supply or valuation equals zero. A separately displayed self-reported supply figure carries a different status from a verified figure.
Can a Liquidity Score be read as a direct ratio?
The Liquidity Score is not a linear measure, so doubling the score does not mean doubling liquidity. Its calculation combines simulated execution outcomes across order sizes. A higher score indicates greater measured liquidity, without providing a simple multiplier for executable trade size.