Public Blockchain as a Decentralized Finance Infrastructure Service Platform

A free, open-source book that explains how crypto actually works. 15 chapters covering Bitcoin, Ethereum, Solana, DeFi, MEV, market structure, custody, stablecoins, governance, quantum resistance, and prediction markets.

Official repository for core projects comprising the Celo platform

Acala - cross-chain DeFi hub and stablecoin based on Substrate for Polkadot and Kusama.

Pre-crisis Risk Management for Personal Finance

这是一个金融领域相关的mcp,本项目通过集成 Tushare API 和 Binance API 为语言模型（如Claude）提供全面的实时金融数据访问能力，支持股票、基金、债券、宏观经济指标、稳定币、虚拟货币等多维度金融数据分析。其中也包含了金融数据查询、财经新闻查询、国家统计局数据查询等

An open SDK for agentic payments. Let AI agents make payments, hold funds, and move money across chains with policy enforcement and human approval built in.

Maker Keeper Framework: Market maker keepers for OasisDEX, EtherDelta, 0x (RadarRelay, ERCdEX), Paradex, DDEX, IDEX, Bibox, Ethfinex, GoPax, HitBTC, TheOcean, OKEX and Gate.io.

x402 Ecosystem Explorer

A decentralized, AI-powered financial system for stabilizing the value of Pi Coin at $314159. Combining blockchain, machine learning, and cybersecurity, Euler's Shield ensures the security, scalability, and decentralization of the Pi Coin ecosystem.

x402 payment infrastructure for both humans and machines

Sample code for centralised stablecoin jetton. TEP-74 and TEP-89 compatible

Python API for Maker contracts

Open-source core banking platform — 61 DDD domains with event sourcing, CQRS, and a schema-first GraphQL API. Multi-asset accounts, exchange, lending, compliance, x402/MPP machine payments, and a non-custodial wallet backend. Laravel 12 / PHP 8.4. Reference implementation: the GCU basket currency.

Connect to hosted payram helper at: https://mcp.payram.com

ERC20 wrapper over the Dai Savings Rate

Minimalist USD - A minimalist, collateralized stablecoin built on Ethereum.

A monorepo for the Beanstalk protocol, SDK, subgraphs and UI. Currently houses infra for the Basin protocol.

Client SDK for the Vybe x402 API. Pay-per-call USDC over HTTP and prepaid-credit WebSocket streaming for Vybe's Solana analytics API. Built for AI agents.

Maker Keeper Framework: Keeper to participate in `flip`, `flop` and `flap` auctions in multicollateral Dai.