"mailbox.org" matching MCP connectors:
Pay-per-call safety checks for AI agents: screen a crypto address or URL before you transact.
Read-only DERO blockchain MCP: 33 tools (12 composites) incl. TELA discovery + bundled docs.
x402-paid Base agent tools (USDC). 5 deterministic tools. No API keys. No NFT pass.
Trust scores for x402 sellers: wash-trading, real buyers, verdict. $0.02/score via x402 on Base.
DeFi protocol data: TVL, yield pools, and cross-chain analytics
DeFi intelligence via DefiLlama — TVL for 7,500+ protocols, APY data for 19,000+ yield pools, and blockchain ecosystem rankings. Filter by chain, project, token, or minimum APY.
Multi-chain wallet intelligence: balances, transactions, ENS, OFAC screening across 7 chains.
Live crypto trend signals, ranking, and backtesting for BTC/ETH/SOL/XRP/ADA. x402 pay-per-call.
Live crypto trend signals, cross-asset ranking, and on-demand backtesting for BTC/ETH/SOL/XRP/ADA, backed by a transparent, independently-verifiable systematic methodology — every number backtestable yourself, not a black box. x402 USDC on Base & Solana via Coinbase CDP facilitator, $0.01-$0.28/call. No API keys.
Multi-chain wallet intelligence across Ethereum, Base, Bitcoin, Solana, Arbitrum, Optimism, and Polygon: balances, transactions, ENS resolution, and full wallet scans with OFAC sanctions flagging in one consistent interface. x402 USDC on Base & Solana via Coinbase CDP facilitator, $0.001-$0.03/call. No API keys.
Live BTC/USD price, AI predictions 2027-2030, halving analysis, and on-chain signals. Free, community-funded, no auth required.
Cross-exchange arbitrage opportunities and funding rate signals
24 NEAR + Solana + Base blockchain endpoints with x402 USDC micropayments