"American Express" matching MCP connectors:

Crypto perp funding, spreads and listings, plus your own Arbitron cards, trades, PnL and docs.

Lossless Uniswap V3 historical tick data streams and sandboxed parametric backtesting matrix sweeps on Base Mainnet. Implements the automated Coinbase x402-express stablecoin paywall protocol ($1 streams / $5 archives / $25 matrix simulations). Fully compatible with @coinbase/agentkit and LangChain.