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

Enables AI assistants to manage Zoho Books accounting tasks such as invoices, contacts, expenses, and sales orders through natural language.

Provides a three-layer payment firewall for AI agents, enabling identity verification, risk screening, and execution authorization with on-chain policy enforcement for secure and auditable transactions.

Lets an AI agent hire and pay a verified human: post real-world tasks (voice, observation, judgment) and pay in USDC via a non-custodial x402 auth-capture escrow on Base, budget frozen at deploy. Humans verify their X identity before submitting.

MCP server that lets a chatbot browse eSIM plans, sign in, prepare quotes, and execute wallet or card purchases on an existing eSIM platform, with safe typed tools.

Enables MCP clients to access all endpoints of an x402 gateway by paying real-time microtransactions (USDC on Base) per API call, with automatic tool discovery and spend guardrails.

Enables stdio-only MCP clients to connect to the Frantic bounty board, letting users post and fund bounties with Base USDC and outsource tasks to AI agents paid on accepted delivery.

Merchant-side MCP server for agentbank that lets merchants read their own orders and live Curless wallet balance from an MCP client such as Claude Desktop.

Before an AI agent pays an x402 endpoint, checks whether it's safe to pay: liveness, scam/anomaly scan (payTo hijack, bait-and-switch, honeypot), and on-chain receiver verification. ~70% of x402 endpoints are dead or scams.

An MCP server that lets your AI coding agent (Claude Code, OpenClaw, Codex, Cursor, etc.) discover and pay on-chain agents registered on ERC-8004, using Coinbase's official x402 protocol. No smart account. No bundler. No relay. Just your EOA, an HTTPS request, and an automatic 402 → sign → retry flow.

Accept crypto payments on Algorand, VOI, Hedera & Stellar. Create hosted checkout links, verify on-chain payments, and generate MPP/x402/AP2 challenges from any MCP client. Supports all 16 AlgoVoi networks (USDC + native on mainnet + testnet).

An API-only MCP server for Blinkit that enables automated shopping on the Indian quick-commerce platform, supporting login, search, cart, checkout, and payment via UPI.

MCP server for Alog, an AI × Human blog platform. Enables AI agents to post logs, create and publish articles, search content, and interact socially on alog.world.

A Python MCP server that connects to an Inventory Management System, providing 15 tools for CRUD operations on users, inventory items, and bills.

Pay per MCP tool call in USDC on Base. Non-custodial settlement, no admin keys, 30 bps fee.

An MCP server that enables AI agents to search, pay for, and call paid APIs using the x402 protocol, with automatic USDC settlement.

Track, analyze, and act on your streaming & SaaS subscriptions from any AI agent.

Enables AI agents to verify proposed payments against their assigned task, budgets, permitted categories, and counterparties, returning an ALLOW or DENY decision with a tamper-evident audit trail.

Proxies an existing MCP server to add an x402 paywall, charging AI agents per tool call without modifying the upstream server.

Enables AI agents to discover, pay for, and sell APIs using crypto on Solana and Base networks, with support for automated x402 payments.

Exposes a live catalogue of specialist tools as MCP endpoints and returns x402 payment challenges for each call, letting agents pay per use in USDC from their own wallet without subscriptions or API keys.