Yunare Maia

Open-source developer focused on real-time crypto data infrastructure for AI agents. Everything I build is open source, TDD-first, and designed to be consumed programmatically — by agents, dashboards, and trading bots.

• Crypto Price Monitor  — multi-chain token prices with webhook alerts (Ethereum, Base, Arbitrum, Optimism, Polygon, Solana, BSC, Avalanche)
• DeFi Yield Monitor  — supply/borrow APR tracking across Aave, Compound, Morpho, Spark, Euler, Venus with TVL filters and alerts
• Multi-chain Gas Price Oracle  — EIP-1559 gas fees for 8 EVM chains with redundant RPC fallbacks and L2 data fees

Live APIs where agents pay per call via the x402 protocol :

• Multi-chain price oracle · market sentiment · funding rates · technical indicators · DeFi yields · gas prices — all aggregated in one MCP server  (npx x402-crypto-mcp)

Python · TypeScript · Node.js · Vercel · Apify · CoinGecko · DeFiLlama · Binance API · x402 · MCP

• Open source always — no closed-source projects, ever
• Test-driven development — tests come first
• Free data for everyone — public APIs, no API keys required for basic usage

• GitHub: github.com/yunaremaia 
• MCP server: npmjs.com/package/x402-crypto-mcp 

If my tools save you time, consider a donation:

• Solana (cbBTC/USDC/SOL): DGCs31pNhFWbYRf6CoVxhriJ5DXF1Bq31yY7Jg416EU5
• EVM (any chain): 0x61090c6e6fbdaee9d695c6d164a3ead268aea4ac