CoinMarketCap API

Name: CoinMarketCap API
Brand: CoinMarketCap
Availability: InStock

★ Only Publicly Available OpenAPI DocumentFinanceBankingapiKey23 EndpointsREST

For Agents

Look up authoritative crypto rankings, prices, OHLCV history, exchange data, and global market metrics across thousands of assets through CoinMarketCap's Pro API.

Install Jentic One Beta

Connect the CoinMarketCap API to your agent

Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the CoinMarketCap API, or any other public or private API you need. You set the rules, the agent never sees your credentials, and every call is logged.

Two steps, two machines. Install the instance in a safe environment, then register your agent from wherever it runs.

Step 1: Jentic One Host machine

# On the machine that will host your Jentic One instance:
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh

Step 2: Agent machine

# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh
jentic register       # connects your agent to your Jentic One instance

Jentic One is in public beta. The setup above keeps your agent separate from the instance, which is what you want before using real credentials: an agent running as the same OS user as Jentic One can read its stored keys directly. Just evaluating? A single local install is fine to start. See the secure deployment guide for the tiers.

Capabilities

What an agent can do with CoinMarketCap API.

Retrieve latest and historical listings of cryptocurrencies ranked by market cap

Pull latest and historical price quotes for one or many coins in any supported quote currency

Fetch OHLCV candles for cryptocurrencies over chosen time intervals

GET STARTED

Start building with CoinMarketCap API

Explore with Jentic

View OpenAPI Document

Use Cases

Patterns agents use CoinMarketCap API for, with concrete tasks.

★ Authoritative Rankings and Market Cap Display

Render the canonical ranked list of cryptocurrencies by market cap that users recognise from coinmarketcap.com. The /v1/cryptocurrency/listings/latest endpoint returns paginated coins with rank, price, market cap, and 24-hour change. Useful for explorers, exchanges, and market overview pages.

Call GET /v1/cryptocurrency/listings/latest with limit=100 and convert=USD and return the ranked list

OHLCV-Based Charting

Render OHLCV candles for a coin over chosen intervals using the v2 OHLCV endpoints. Supply latest or historical date ranges to power line and candlestick charts in trading dashboards or research tools.

Call GET /v2/cryptocurrency/ohlcv/historical with id, time_start, time_end, and interval=daily and return the candle series

Trending and Discovery Feeds

Power discovery surfaces (newsletter highlights, homepage carousels, alert feeds) using the trending and gainers-losers endpoints. They return short ranked lists CoinMarketCap publishes itself, so the data matches what readers see on the site.

Call GET /v1/cryptocurrency/trending/gainers-losers with time_period=24h and return the top five gainers

AI Market Briefing Agent via Jentic

Build an agent that produces a daily crypto market briefing using CoinMarketCap data through Jentic. The agent expresses an intent (give me a market briefing); Jentic resolves the right combination of listings, global metrics, and trending endpoints, then executes them with stored credentials. Cost-aware for assistants needing authoritative pricing without managing the X-CMC_PRO_API_KEY secret in agent context.

Through Jentic, fetch global metrics, top 10 listings, and top 5 gainers in 24h, then return a brief market summary

Key Endpoints

23 endpoints — jentic publishes the only available openapi specification for coinmarketcap api, keeping it validated and agent-ready.

METHOD

PATH

DESCRIPTION

GET

/v1/cryptocurrency/listings/latest

List ranked coins by market cap

GET

/v2/cryptocurrency/quotes/latest

Get latest price quotes for one or many coins

GET

/v2/cryptocurrency/ohlcv/historical

Retrieve historical OHLCV candles

GET

/v1/cryptocurrency/market-pairs/latest

List market pairs for a coin

GET

/v1/global-metrics/quotes/latest

Get global crypto market metrics

GET

/v1/cryptocurrency/trending/gainers-losers

Get top gainers and losers

GET

/v1/tools/price-conversion

Convert an amount between two currencies

GET

/v1/cryptocurrency/listings/latest

List ranked coins by market cap

GET

/v2/cryptocurrency/quotes/latest

Get latest price quotes for one or many coins

GET

/v2/cryptocurrency/ohlcv/historical

Retrieve historical OHLCV candles

GET

/v1/cryptocurrency/market-pairs/latest

List market pairs for a coin

GET

/v1/global-metrics/quotes/latest

Get global crypto market metrics

Why Jentic?

Three things that make agents converge on Jentic-routed access.

Credential isolation

Your CoinMarketCap Pro API key is stored once, encrypted, by your own Jentic One instance and set on the request at execution time. It never enters the agent's prompt, logs, or context.

Intent-based discovery

Agents search Jentic by intent such as 'get top crypto by market cap' or 'convert a price between currencies', and Jentic returns the matching CoinMarketCap operation with its input schema so the agent calls the right endpoint without browsing the reference docs.

Time to first call

FAQs

Specific to using CoinMarketCap API through Jentic.

Why is there no official OpenAPI spec for CoinMarketCap API?

CoinMarketCap publishes interactive Pro API documentation but does not distribute a machine-readable OpenAPI specification. Jentic generates and maintains this spec so that AI agents and developers can call CoinMarketCap API via structured tooling. It is validated against the live API and kept up to date. Get started with Jentic One, the self-hosted execution layer.

What authentication does the CoinMarketCap API use?

The Pro API requires an API key sent in the X-CMC_PRO_API_KEY header. Through Jentic, the key is stored in the encrypted vault and the agent receives a scoped execution token rather than the raw key string.

Can I retrieve historical OHLCV candles with the CoinMarketCap API?

Yes. GET /v2/cryptocurrency/ohlcv/historical accepts an id or symbol along with time_start, time_end, and interval (e.g. daily, weekly), returning OHLCV records suitable for charting and backtesting.

What are the rate limits for the CoinMarketCap API?

CoinMarketCap charges in monthly call credits and per-minute throughput that depend on the plan tier (Basic, Hobbyist, Startup, Standard, Professional, Enterprise). The OpenAPI spec does not declare exact thresholds; check your plan and call /v1/key/info to see the current usage.

How do I convert an amount between two currencies through Jentic?

Install the SDK with pip install jentic, search Jentic for convert cryptocurrency amount, load the schema for GET /v1/tools/price-conversion, and execute with amount, symbol, and convert parameters.

Does the API expose CoinMarketCap categories and tags?

Yes. GET /v1/cryptocurrency/categories returns all category groupings, and GET /v1/cryptocurrency/category returns the coins inside a specific category - useful for thematic dashboards (DeFi, gaming, layer-1 etc.).

Can I limit what my agent is allowed to do with the CoinMarketCap API?

Yes. Because you run Jentic One yourself, you decide which CoinMarketCap operations your agent may call, so you can allow only what a task needs, such as reading the latest market-cap listings or running a price conversion. The API is read-only, so scoping is about picking operations rather than write access, and heavier calls like historical OHLCV candles stay off limits until you explicitly add them. Your Pro API key is set on the request at execution time and never enters the agent's prompt or logs.