"Researching an author based on their books" matching MCP connectors:

Teardrop is the native economic layer for AI agents, providing a robust suite of tools for multi-chain portfolio tracking, DeFi yield analysis, and gas estimation. It enables autonomous agents to securely find Web3 data and manage micro-payments on-chain with zero human intervention.

Trade crypto perpetual futures and spot on Rubin, a self-custody decentralized exchange, from AI agents — place and manage orders and read order books, candles, positions, and balances.

An MCP server that audits the fairness of construction and renovation estimates in Japan. Provides fair-price ranges, overcharge detection, and verifiable unit-cost data based on JCCDB (65,729 items, DOI-backed).

AI-native parametric insurance infrastructure. Assess weather risk, generate quotes, bind policies, and monitor triggers programmatically. Live paid endpoint via x402 (USDC on Solana).

Real-time financial intelligence MCP server for crypto public companies. Provides covenant stress analysis, alpha signals, peer ranking, risk distribution, SEC XBRL fundamentals, and daily changes. x402 micropayments on Base USDC. First 5 calls free.

On-chain stablecoin market cap and Bitcoin institutional holdings data.

Quant tools + an NFL fantasy draft assistant for AI agents — Kalshi & Polymarket EV, edge, ADP.

PayPerByte — per-byte data for AI agents: x402 USDC on Base, EIP-712-attested. No token.

Verifiable, deterministic risk math for autonomous agents; re-runnable proof on every answer.

Travel award search: compare cash vs points on hotels, flights & cars, cents-per-point, and book.

Read-only data on 3.9M Romanian companies: search, profiles, financials, status, CAEN.

Funding stress early warning for US money markets from free public data, with an honest backtest.

Leveraged-yield router on Morpho. List strategies, simulate, and build UNSIGNED txs.

Reputation-ranked analyst earnings estimates. Pay per call via x402 on Base.

SLA'd EU VAT validation on VIES. Honest 3-state result, never guesses. 100 free lookups.

Japan regulatory, sanctions & DEX market data for AI agents via x402 (USDC on Base).

DeFi pool yield+security intelligence & token/contract risk scanner. USDC on Base via x402.

Crypto market microstructure, options, and on-chain metrics. Free discovery; $0.05/call via x402.

Pay-per-call web & EU business intelligence for AI agents (x402 USDC on Base). 11 tools.

ZKP2P analytics on Base: live orderbook, route planning, explorer, and protocol market data.