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API Resources

Guides, tutorials and resources to help you build with the CoinMarketCap Pro API.

Insights

Live Crypto Prices in Google Sheets Without an API Key

Live Crypto Prices in Google Sheets Without an API KeyPull live crypto prices into Google Sheets with no API key and no account, using CoinMarketCap's Keyless Public API and one short Apps Script function.

Sep 30

CMC API Historical Data: What's Available, How Far Back, and How to Access It

CMC API Historical Data: What's Available, How Far Back, and How to Access ItCoinMarketCap API historical data: five endpoints for crypto prices, OHLCV candles, market rankings, global metrics and exchange history, with daily data from 2010.

Sep 23

CoinMarketCap API for AI Agents

CoinMarketCap API for AI AgentsConnect AI agents to live CoinMarketCap crypto data. Start keyless with no signup, or use MCP, x402 pay-per-call, CLI and REST across 54M+ assets.

Sep 15

AI Crypto Data Sources: How Every CMC AI Answer Is Attributed

AI Crypto Data Sources: How Every CMC AI Answer Is AttributedEvery CMC AI answer comes back with its sources. What counts as a source, how the list is capped, and what the mix looks like when you measure it.

Sep 15

How to Build a Portfolio Tracker That Explains Its Own Moves With CoinMarketCap API

How to Build a Portfolio Tracker That Explains Its Own Moves With CoinMarketCap APIWire CoinMarketCap quotes to CMC AI explanations so a holding shows why it moved, not just that it did. Python recipe with the empty state handled first.

Sep 15

Checking Coverage Before You Call

Checking Coverage Before You CallAn uncovered coin and a covered one with nothing written look identical to a client that does not check. Here is the call that tells them apart.

Sep 14

CMC AI Question Keys: The Coin and Market Questions Answered

CMC AI Question Keys: The Coin and Market Questions AnsweredEvery question CMC AI answers about a coin and about the market, with the key that requests it, how often it regenerates, and how much is covered today.

Sep 14

How to Handle CoinMarketCap API Errors and Rate-Limit Responses

How to Handle CoinMarketCap API Errors and Rate-Limit ResponsesEvery integration hits errors eventually. The CoinMarketCap API makes diagnosis straightforward: every response carries a status object that tells you exactly what went wrong and why.

Sep 14

What One Credit Buys, Endpoint by Endpoint

What One Credit Buys, Endpoint by EndpointWhat every CoinMarketCap API endpoint charges, including the thirty that publish no figure, with four common builds costed at realistic monthly volumes.

Sep 14

New CMC AI Endpoints Make CoinMarketCap's API Even More Powerful

New CMC AI Endpoints Make CoinMarketCap's API Even More PowerfulCoinMarketCap's AI insights are now available through the API. Three /v5/cmc-ai endpoints return the homepage feed, per-coin answers and a coverage map.

Sep 10

How to Look Up Tokenized Asset Issuers With the CoinMarketCap API

How to Look Up Tokenized Asset Issuers With the CoinMarketCap APIResolve the entity behind a tokenized real-world asset. Two CoinMarketCap API endpoints return the issuer directory and one issuer's full token roster.

Sep 8

How to Track Your Crypto Portfolio

How to Track Your Crypto PortfolioTrack crypto across exchanges and wallets in one view. Three ways to add holdings, what the profit figures mean, and how to keep the record accurate.

Sep 8

Build a Crypto Portfolio Tracker With the CoinMarketCap API

Build a Crypto Portfolio Tracker With the CoinMarketCap APIBuild a crypto portfolio tracker on the CoinMarketCap API. Resolve tickers to stable IDs, value holdings and work out cost basis, all with no API key.

Sep 7

Build Crypto Price Webhooks on the CMC WebSocket API

Build Crypto Price Webhooks on the CMC WebSocket APITurn the CoinMarketCap WebSocket stream into price webhooks with a fifty-line Node.js bridge. Frame shapes, credit costs and production notes included.

Sep 3

Crypto Market Data API SDKs Ranked by Release and Version Parity

Crypto Market Data API SDKs Ranked by Release and Version ParitySeven crypto market data APIs ranked on client-library maintenance: release currency, version parity between repo and registry, and commit authorship.

Sep 2