ADAMANT InfoServices is a crypto and fiat currency rates service provider. It collects rates from MOEX, Currency-Api, ExchangeRate, Coinmarketcap, CryptoCompare and Coingecko and calculates cross-rates, and provides information via API.

It is own-hosted service run on your server, it stores all rates in local database, updated with refreshInterval frequency.

Features:

• Collects rates from MOEX for fiat tickers
• Collects rates from Currency-Api for fiat tickers
• Collects rates from ExchangeRate (Currency-Api2) for fiat tickers
• Collects rates from Coinmarketcap for crypto tickers
• Collects rates from CryptoCompare for crypto tickers
• Collects rates from Coingecko for crypto tickers
• Own-hosted service
• Reliable: uses different sources for one coin, and notifies about significant deviation
• Minimum API calls. Free API keys fit.
• Notifications in case of errors to Slack
• Stores history on server, no need to make additional request
• Easy setup, settings are in a config file
• Provides RESTful API
• It is fast; low hardware requirements
• Open source
• Free to use for any purposes

Installation

Requirements

• Ubuntu 18+ (we didn't test with others)
• NodeJS v16+
• MongoDB (installation instructions)

Setup

su - adamant
git clone https://github.com/Adamant-im/adamant-currencyinfo-services
cd ./adamant-currencyinfo-services
npm i

Pre-launch tuning

nano config.json

Parameters:

• crypto_cmc List of coins to fetch rates from Coinmarketcap
• crypto_cmc_coinids List of Coinmarketcap Symbol-Id pairs like { "ADM": 3703 } to fetch rates from Coinmarketcap. Used when one coin symbol is used for different coins. Coin ids can be seen via /cryptocurrency/quotes/latest?slug=coinname request.
• crypto_cc List of coins to fetch rates from Cryptocompare
• crypto_cg List of coins to fetch rates from Coingecko. Better use crypto_cg_coinids.
• crypto_cg_coinids <string, array> List of Coingecko coin Ids to fetch rates from Coingecko. Used when one coin symbol is used for different coins. Coin ids can be seen on https://api.coingecko.com/api/v3/coins/list.
• fiat List of fiat pairs and their codes to fetch from MOEX
• baseCoins List of coins to calculate all available pairs using crypto and fiat
• cmcApiKey Coinmarketcap API key. You must get yours at https://coinmarketcap.com/api/.
• ccApiKey Cryptocompare API key. You must get yours at https://min-api.cryptocompare.com/.
• cgApiKey No need for Coingecko API key. Leave it default.
• port Port for providing InfoServices Rates API. It will be available at http://IP:port.
• refreshInterval Refresh rate in minutes to fetch data from data sources. Note: often requests can lead to blocking of your API keys.
• slack Token for Slack alerts for InfoService administrator. No alerts if not set.
• adamant_notify ADM address to receive alerts for InfoService administrator. Recommended.
• passPhrase The secret phrase for account you want to send alerts from. Obligatory in case of you set adamant_notify
• node_ADM <string, array> List of nodes for API work, obligatorily in case of you set adamant_notify
• log_level The software will use verbosity according to log_level. It can be none < error < warn < info < log.

Launching

You can start ADAMANT InfoServices with node app command, but it is recommended to use process manager:

pm2 start --name info-service app.js

Add info-service to cron

crontab -e

Add string:

@reboot cd /home/adamant/adamant-currencyinfo-services && pm2 start --name info-service app.js

Usage

To test InfoServices successfully installed, try to open link http://IP:36668/get?coin=ADM in web browser.

For usage see InfoServices API documentation.