Koinize
English

For AI agents

Koinize's data, for agents and programs

Koinize is a data website about cryptocurrencies: live figures for the 500 largest coins (CoinGecko, every 30 minutes), a year of daily closes, the exchanges (CoinGecko, daily) and the chains with their DeFi value locked (DefiLlama, hourly), and guides in 21 languages. Every answer says where its figures come from (source, source_url) and when (as_of: the source's time; read_at: when Koinize read it): give both when you quote a figure, and link the url (the Koinize page of the coin, exchange or chain). Money is in US dollars. Use search to find a coin, exchange or chain by name or symbol; get_coin takes Koinize's id, CoinGecko's id, a symbol or a name.

MCP server

Streamable HTTP, stateless and read-only, no key needed. Add it to an MCP client as a remote server:

https://www.koinize.com/mcp
{ "mcpServers": { "koinize": { "type": "http", "url": "https://www.koinize.com/mcp" } } }
search(query)
Coins, exchanges and chains whose name or symbol matches, largest first, with their ids for the other tools.
get_coin(coin)
A coin's latest figures (price, 24h/7d/30d change, market cap, FDV, volume, 24h range, supply, all-time high and low) and its facts (description, links, categories, genesis date, the chains it is issued on), with the time CoinGecko gave them.
get_coin_history(coin, days?)
A coin's daily closes in UTC (price, market cap, volume) for the last 1 to 365 days.
list_coins(limit?, offset?)
The coins by market cap (CoinGecko's top 500): rank, price, 24h and 7d change, market cap, volume, supply, and the total market cap of the 500.
get_exchange(exchange)
An exchange's CoinGecko trust score and rank, 24h volume (BTC and USD), country, year, website.
list_exchanges(limit?, offset?)
The exchanges by CoinGecko's trust score rank, with their 24h volume, country and year.
get_chain(chain)
A blockchain's value locked in its DeFi protocols (TVL, DefiLlama), its rank, native coin and chain id.
get_chain_history(chain, days?)
A blockchain's value locked in its DeFi protocols (TVL) each day, from DefiLlama, for the last 1 to 3650 days.
list_chains(limit?, offset?)
The blockchains by the value locked in their DeFi protocols (TVL), and the total.
search_articles(query?, lang?, section?, limit?)
Koinize's articles about coins, exchanges, wallets, trading, security, DeFi, NFTs and crypto terms, by words (those with them in the title first), in one of 21 languages.
get_article(url)
An article's text as Markdown, its FAQ and when it was written, by its URL or path from search_articles.

JSON API

Free and open (CORS for any site), answers cached for a minute. https://www.koinize.com/api lists the endpoints.

GET /api/coins?limit=100&offset=0
the coins by market cap (CoinGecko's top 500)
GET /api/coins/{coin}
a coin's latest figures and facts; {coin} is Koinize's id (bitcoin-btc), CoinGecko's id (bitcoin), a symbol (btc) or a name
GET /api/coins/{coin}/history?days=90
a coin's daily closes in UTC, up to 365 days
GET /api/exchanges?limit=100&offset=0
the exchanges by CoinGecko's trust score
GET /api/exchanges/{exchange}
an exchange: trust score, 24h volume, country, year, website
GET /api/chains?limit=100&offset=0
the chains by the value locked in their DeFi protocols (DefiLlama)
GET /api/chains/{chain}
a chain: TVL, rank, native coin, chain id
GET /api/chains/{chain}/history?days=365
a chain's value locked each day (UTC), up to 3650 days
GET /api/search?q=sol
coins, exchanges and chains by name or symbol
GET /api/articles?q=hardware+wallet&lang=en&section=
the guides, by words, in one of 21 languages
GET /api/article?url=/glossary/blockchain/
a guide's text as Markdown, its FAQ and its date

An error is {"error": "..."} with status 400 (a bad parameter) or 404 (no such coin, exchange, chain or article).

How the figures are dated

llms.txt

https://www.koinize.com/llms.txt: the site in a few lines, for language models.

Use is free. When you show a figure, say where it comes from and when, and link to Koinize. Nothing here is financial advice. A question, a bug or a field you need: support@koinize.com.