Price widgets & tickers
Show live price, market cap and 24-hour change for any asset.
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/quotes/assets
RWA, Earn, derivatives, DEX and teams are live
Build on the data behind CoinWorldCap
Crypto markets, tokenized stocks and commodities, earn yields, derivatives, DEX tokens and the teams behind projects. One base URL, one header, one response shape.
GET https://open-api.coinworldcap.com/openapi/v1/assetsUse cases
What you can build
Each use case maps to a small set of endpoints, so you only integrate what you need.
Portfolio trackers
Value holdings against current quotes and resolve coins by symbol or slug.
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/assets/quotes
Market dashboards
Headline totals, category and chain leaderboards, trending movers.
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/global/categories/chains/trending
Tokenized asset trackers
Follow tokenized stocks and commodities and chart their history.
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/rwa/rwa/history
Yield comparison
Compare APY across platforms and products for a coin, and how each rate moved.
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/earn/earn/history
Funding & OI monitors
Watch funding rates and open interest by pair and exchange, with history for alerts.
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/derivatives/pairs/derivatives/history
DEX token screeners
Find trending and new tokens on each chain, then check liquidity and holders.
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/dex/tokens/dex/tokens/info
Exchange directories
List venues with links, fees and 24-hour volume where available.
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/exchanges
Try it
See what comes back
Pick a dataset. Every example is taken from the reference, shortened.
Pick a datasetEvery endpoint in the reference
Examples from the docs, shortened
GET
/quotes?slug=bitcoin200 OK{
"code": 0,
"message_key": "SUCCESS",
"result": {
"items": [{
"id": 1, "name": "Bitcoin", "symbol": "BTC", "slug": "bitcoin",
"price": "66079.916784987",
"market_cap": "1310000000.12345678",
"volume_24h": "48035743.12",
"percent_change": { "1h": "0.1", "7d": "3.4", "30d": "5.6", "1y": "9" }
}],
"page": 1, "total_page": 1, "total": 1
}
}Endpoints
The full API surface
Seven data families, every endpoint a GET. select trims any list to the fields you ask for.
Market data
/assets · /quotes · …The asset catalogue, latest quotes with eight change windows, trending movers, exchanges, market totals, and category and chain leaderboards with chain history.
8 endpoints
Real-world assets
/rwa/*Tokenized stocks, commodities, currencies and more: prices, the crypto tokens that track each asset, issuers, and price history.
Open docsEarn
/earn/*The flexible, locked and other earn products platforms offer for a coin, with APY ranges and their daily history.
2 endpoints
Derivatives
/derivatives/*Perpetual and futures contracts by coin or by exchange, exchange-level open interest and volume, and funding-rate history.
3 endpoints
DEX tokens
/dex/*Trending, new and gainer lists by chain, search by address or name, and each token's trades, liquidity, holders, pools and candles.
9 endpoints
Team & people
/people/* · /*/teamWho builds a project or runs an exchange, searchable by name, with each person's roles and profile.
4 endpoints
Account
/key/infoYour plan, your per-minute limit and day-by-day request counts for the account and the key.
1 endpoint
View all APIs
Parameters, fields, errors and runnable examples for every endpoint.
Open the referenceGet started
Three steps to your first call
Create a free account
Sign up on CoinWorldCap. There is no charge to start.
Sign upYou're signed inGo to profileRequest your key
Email support@coinworldcap.com with what you are building and roughly how often it will call. The key is shown once; keep it safe.
Email usSend one header
Put the key in X-Api-Key and call any endpoint. Check your usage any time with /key/info.
Docs
Built for developers and AI assistants
Everything you need to integrate, in a form people and models can both read.
Docs your AI can read
Every page also comes as Markdown, plus llms.txt and llms-full.txt to hand the whole reference to an assistant.
llms.txtOnly the fields you need
Add select to a list call and get just those fields back, for smaller and faster responses.
Choosing fields with selectWatch your own usage
/key/info shows your plan, your per-minute limit and day-by-day request counts.
Key infoKnow how fresh it is
How often each dataset refreshes and where its history starts.
Data methodologyIntegrate the right way
Polling intervals, retries with backoff, and fetching history in segments.
Best practices and FAQSee what changed
Every addition and behaviour change, dated, newest first.
ChangelogFAQ
Questions, answered
Anything else? Email support@coinworldcap.com.
What is CoinWorldCap Developer?＋
A read-only HTTP API over the data behind coinworldcap.com: assets, quotes, trending, exchanges, market totals, categories and chains, plus tokenized real-world assets, earn yields, derivatives, DEX tokens and the teams behind projects, returned as JSON over HTTPS.
How do I get an API key?＋
Create a free CoinWorldCap account, then email support@coinworldcap.com with what your integration does and roughly how often it will call. The key is shown once and we store only its hash, so keep it somewhere safe.
How do I authenticate requests?＋
Send your key in the X-Api-Key header on every request. Without a usable key you get a 401, and the response code says whether the key is unknown, expired or revoked.
What are the rate limits?＋
Requests are limited per minute against your account, not per key. Over the limit you get a 429 with Retry-After in whole seconds.
How do I check my usage?＋
Call /key/info with your key. It returns your plan, your per-minute limit, and day-by-day request counts for the account and for that key.
How far back does history go?＋
Daily points go back to the start of each dataset, and hourly points cover the last 90 days. One request returns up to 1,000 points, counted across all the series it asks for. Each dataset's start is listed in Data methodology.
How are numbers and times formatted?＋
Money and volumes arrive as decimal strings, never JSON numbers. Every timestamp is UTC.
Ready to build?