public apis
/
CategoriesMCPBlogRandomStar
Public APIs

A searchable directory of 2,000+ free public APIs, curated by the community and maintained with APILayer.

Powered byAPILayer

Popular

  • Weather APIs
  • Finance APIs
  • Crypto APIs
  • Geocoding APIs
  • Machine learning APIs
  • Games APIs

Directory

  • Categories
  • All APIs
  • MCP servers
  • FAQ
  • Stats
  • JSON API
  • llms.txt

APILayer

  • Browse the API suite ↗
  • Get a free API key ↗
  • APILayer blog ↗
  • Postman collection ↗
  • Discord community ↗

Project

  • public-apis on GitHub ↗
  • Contribute an API ↗
Public APIs · by APILayerData from public-apis (MIT)
  1. Home
  2. /Cryptocurrency
  3. /CoinCap
Cryptocurrency
CoinCap logo

CoinCap

Real time Cryptocurrency prices through a RESTful API.

CoinCap API is a free Cryptocurrency API that requires no API key, is served over HTTPS and has unconfirmed CORS support.

Authentication
None required
HTTPS
Yes
CORS
Unknown
Category
Cryptocurrency
Visit documentation ↗docs.coincap.io

About CoinCap API Manager

CoinCap API — real-time cryptocurrency prices, market caps, and exchange data. Supports accountless x402 payment protocol for agent access: create a prepaid API key with POST /v3/prepaid/create (100 free credits, refill with USDC on Base). OpenAPI spec: https://rest.coincap.io/api-docs.json

Provider
CoinCap API Manager
Website
docs.coincap.io ↗

Details from docs.coincap.io.

APILayer

Unified API suite · now live

Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.

Get your free API key→Free tier on every API

CoinCap API alternatives

Coinbase Pro logo

Coinbase Pro

Cryptocurrency Trading Platform

apiKeyHTTPSCORS ?
C

CoinDCX

Cryptocurrency Trading Platform

apiKeyHTTPSCORS ?
Coinbase logo

Coinbase

Bitcoin, Bitcoin Cash, Litecoin and Ethereum Prices

apiKeyHTTPSCORS ?
CoinGecko logo

CoinGecko

Cryptocurrency Price, Market, and Developer/Social Data

No authHTTPSCORS
CoinAPI logo

CoinAPI

All Currency Exchanges integrate under a single api

apiKeyHTTPSNo CORS
Coinigy logo

Coinigy

Interacting with Coinigy Accounts and Exchange Directly

apiKeyHTTPSCORS ?

CoinCap API FAQ

Who provides the CoinCap API?

The CoinCap API is provided by CoinCap API Manager (docs.coincap.io). CoinCap API — real-time cryptocurrency prices, market caps, and exchange data. Supports accountless x402 payment protocol for agent access: create a prepaid API key with POST /v3/prepaid/create (100 free credits, refill with USDC on Base). OpenAPI spec: https://rest.coincap.io/api-docs.json

Is the CoinCap API free?

Yes. The CoinCap API is listed in the Cryptocurrency category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.

Does the CoinCap API require an API key?

No. The CoinCap API requires no authentication, so you can start making requests without signing up.

Can I call the CoinCap API from the browser?

CORS support for the CoinCap API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.

Does the CoinCap API support HTTPS?

Yes. The CoinCap API is served over HTTPS, so it's safe to use in production.