"database" matching MCP servers:

RailRouter 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 intelligence

Deploy and monetize agent-built apps from one MCP. Ship a full-stack app (login, database, usage billing) with one command, then charge the signed-in end user per API call via X-Settle-Payer (end-user-pays: cost times markup, app owner earns the markup).

MCP server providing guarded access to a B2B SaaS billing database (customers, subscriptions, invoices, credit notes) and live ECB exchange rates, with read-only tools and one capped, idempotent write for issuing credit notes.

Enables AI assistants to handle payment support tasks by orchestrating between Stripe and an internal orders database, with human approval required for refunds.

PayDesk MCP is a production-grade Model Context Protocol (MCP) server that exposes payment gateway APIs, tools, prompts, and resources. It bridges the gap between an AI assistant and three underlying database systems to resemble real payment services like Stripe, Razorpay, or PayPal.