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"A tool for analyzing SQL database structure and functionality" matching MCP servers:
- AlicenseAqualityAmaintenancePay-per-call USDC payment proxy for AI agents. Issue scoped Pay Tokens with hard spending caps and auto-journal every charge to freee / Money Forward / QuickBooks.Last updated61162MIT
- AlicenseAqualityBmaintenanceCreate free, no-signup invoices from your AI assistant — the create_invoice tool returns a link that opens blankinvoicemaker.com pre-filled, ready to download as a watermark-free PDF.Last updated21061MIT
- AlicenseAqualityAmaintenancex402-trust gives AI agents a "check before you pay" layer for the x402 ecosystem.Last updated12540MIT
- AlicenseAqualityBmaintenanceEnables 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.Last updated2371MIT
- AlicenseBqualityAmaintenanceagenticpay lets MCP server developers monetize tools via per-call USDC micropayments on Solana, using the x402 protocol. Each tool declares a price; agents pay via signed Solana transactions; settlement happens on-chain in ~1.5–2 seconds.Last updated13MIT
monospay-mcpofficial
Alicense-qualityDmaintenancePay per MCP tool call in USDC on Base. Non-custodial settlement, no admin keys, 30 bps fee.Last updatedMIT
attest-mcpofficial
Alicense-qualityCmaintenanceEnables AI agents to scan payment endpoints for safety, returning a letter grade (A–F) and verdict before authorizing payments.Last updated18MIT
AgentTax MCP Serverofficial
Alicense-qualityDmaintenanceEnables MCP tool developers and AI agents to track payments, calculate sales tax liability, and ensure tax compliance across US jurisdictions.Last updatedMIT
mcp-x402-acceptofficial
Alicense-qualityCmaintenanceProxies an existing MCP server to add an x402 paywall, charging AI agents per tool call without modifying the upstream server.Last updatedMIT
flexprice MCP Serverofficial
Alicense-qualityBmaintenanceA Model Context Protocol server that exposes the flexprice API as tools for AI assistants, enabling management of customers, plans, prices, subscriptions, invoices, payments, and events from IDEs or CLI.Last updated777AGPL 3.0
mpp32-mcp-serverofficial
Alicense-qualityBmaintenanceMCP server that allows AI agents to discover and pay for thousands of APIs (x402 on Solana/Base) using a single key, with automatic payment handling and a federated catalog of machine-payable endpoints.Last updated240MIT- Alicense-qualityCmaintenanceEnables AI agents to pay-per-call for Cloudflare Worker APIs using USDC micropayments, with automatic MCP tool discovery and Bazaar listing.Last updatedMIT
- Alicense-qualityDmaintenanceEnables individual proprietors and freelancers to manage daily accounting tasks like journal entries, invoice creation, and monthly reconciliation through simple tool calls, using freee's API.Last updated2MIT
- Alicense-qualityBmaintenanceEnables AI agents to accept payments in Mexico via Mercado Pago, including OXXO cash vouchers, SPEI bank transfers, cards, and Mercado Pago wallet, through a stateless hosted checkout.Last updatedMIT
- Alicense-qualityDmaintenanceA per-call payment trust and reputation API for AI agents, allowing agents to check if a counterparty is safe to pay before making a payment.Last updated02MIT
- Alicense-qualityBmaintenanceA remote MCP server that enables AI agents to accept Japanese payments (konbini, credit cards, PayPay, etc.) via KOMOJU's hosted checkout.Last updatedMIT
- Alicense-qualityBmaintenanceGeneric Lightning-paywall sidecar that wraps any stdio MCP server and requires a paid Lightning invoice (via NWC) before forwarding priced tool calls. Per-tool prices are set via env; includes payment verification, replay protection, and an audit log — the upstream server stays untouched.Last updated71MIT
- Alicense-qualityFmaintenanceRailRouter Lite is a real, production-ready MCP server implementing the Model Context Protocol. It exposes one tool: route_payment. This tool intelligently routes payments to the optimal rail (Stripe MPP, Coinbase x402, or Google AP2) in real time, choosing based on cost, latency, and success rate. Every decision is logged to a Cloudflare D1 database, creating compounding routing intelligenceLast updatedMIT
- Alicense-qualityCmaintenanceA template for MCP servers that enforces a paywall gate, offering free local execution and monetizing premium features via Stripe or x402 payments.Last updatedMIT