Free Currency Exchange Rates API with 200+ Currencies & No Rate Limits
- bitcoin
- cryptocurrency
- currency
- currency-api
Repository Index
68,760 visible repositories in the index
25–48 of 69 · Most stars
weixin/wechat/微信公众平台/微信企业号/微信商户平台/微信支付 go/golang sdk
- weixin
- go
- golang
A foreign exchange rates and currency conversion API
- foreign-exchange-rates
- ruby
- currencies
- exchange-rate
🚀 💸 Easily build, backtest and deploy your algo in just a few lines of code. Trade stocks, cryptos, and forex across exchanges w/ one package.
- cryptocurrency
- bot-framework
- investment
- bots
A money and currency library for PHP
- php
- money
- currency
- exchange-rates
TranslatedA lightweight USDT/USDC payment gateway with multi-chain support, integration guides, SDK documentation, and merchant demos.
- crypto-payment-sdk
- multi-chain
- multi-chain-wallet
- multi-chain-wallet-api
Strategies to Gekko trading bot with backtests results and some useful tools.
- gekko
- strategies
- gekko-strategies
- gekko-backtest
PHP currency conversion library for retrieving exchange rates from 30 providers, with caching and fallback. Maintained since 2014.
- php
- currency
- exchange-rates
- currency-exchange-rates
C#/.NET client library for the Binance.com cryptocurrency exchange REST and WebSocket APIs, supporting Spot and Futures trading and market data with strongly typed models.
- binance
- cryptocurrency
- tradeapi
- exchange
A modern In-App Purchases management framework for iOS.
- swift
- in-app-purchase
- ios
Bitcart is a free and open-source self-hosted payment processor for BTC, LTC, BCH, XMR, ETH, TRX, USDT and more
- python
- docker
- docker-compose
- bitcoin
Technical Analysis Library for Golang
- technical-analysis
- golang
- go
- stock
Create your Java crypto trading bot in minutes. Our Spring boot starter takes care of exchange connections, accounts, orders, trades, and positions so you can focus on building your strategies.
- trading-bot
- trading-strategies
- trading
- bot
TranslatedShanghai Future CTP Interface CTP Python API Wrapper
- ctp
- shfe
- futures
- trading-api
Oracle3: open-source trading engine and MCP server for prediction markets. Finds fee-adjusted no-arbitrage violations across related event contracts and trades them live on Kalshi, Polymarket and Solana, or on paper, under pre-trade risk limits. 13 MCP tools, JSON CLI, agent skills, 600+ tests.
- algorithmic-trading
- kalshi
- polymarket
- python
Trady is a handy library for computing technical indicators, and it targets to be an automated trading system that provides stock data feeding, indicator computing, strategy building and automatic trading. It is built based on .NET Standard 2.0.
- strategy
- technical
- analysis
- stock
Matching Engine for Limit Order Book in Golang
- exchange
- trading
- orderbook
- execution-engine
💸 Lightweight currency conversion library, successor of money.js
- cashify
- money
- moneyjs
- cash
Self-hosted, non-custodial stablecoin payment gateway with x402 and invoice checkout. Accepts USDC, USDT, PYUSD and DAI across 8 networks with QR payments, payment links, settlement tracking and signed webhooks. REST API, micropayments, exports, zero platform fees and no KYC. Python, cross-platform.
- coinbase-x402
- coinpayments-api
- crypto-checkout-form
- crypto-payment-system
💰💰 Convert currency rates directly from your terminal!
- exchange
- rates
- currency
- javascript
A gem that calculates the exchange rate using published rates from European Central Bank. Compatible with the money gem
Deterministic, dependency-free Chan-theory (缠论) structure engine + multi-market trading workstation (A-shares / HK / US / crypto) with teaching chart annotations and a mobile PWA.
Real-time HFT bot for Polymarket crypto Up/Down markets combining CLOB order books, Chainlink feeds and multi-exchange prices with TWAP and Black-Scholes probability models; paper mode and backtests.
- black-scholes
- chainlink
- crypto
- hft
Arbitrage bot that currently works on bittrex & poloniex
- arbitrage
- bittrex
- poloniex
- trading