"Techniques for Detecting XSS and SQL Injection Vulnerabilities" matching MCP servers:

Credit and payments for AI agent developers — over MCP. No crypto required

Pay-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.

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.

Free x402 endpoint checker plus paid report and metadata tools. Remote MCP server for agents. Written by AI named Nock, not a human.

AI payment guardrails for Python & MCP: spend-capped agent identity (KYA), dry-run/budget/approval gates, prompt-injection defense, encrypted secret vault.

Discover, pay for, execute, and publish monetized APIs directly from your agent, settled per call in USDC over x402, through the Model Context Protocol.

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

MCP server for Korean payment gateways, providing tools to query and cancel payments for PortOne and TossPayments, and verify PortOne webhooks.

MCP Server for agents to onboard, pay, and provision services autonomously with InFlow

Enables creating non-custodial payment drafts and pay links for BTC, USDC, USDT, and EURC, with signing and broadcast remaining in the user's wallet.

An MCP server that exposes tools for Taiwan's ezPay e-invoice lifecycle, enabling AI assistants to issue, void, and query invoices and allowances through the standard MCP protocol.

MCP server for T-Kassa (T-Bank/Tinkoff) payment API. Provides 16 tools for payments, refunds, recurring charges, customer management, saved cards, SBP, receipts, and T-Invest portfolio.

An MCP server for Splitwise that lets you manage expenses, balances, settlements, groups, and comments in natural language from any MCP client.

Enables AI assistants to inspect BLMPay balances, payments, payouts, webhooks, and API capabilities through MCP tools, with write/financial tools disabled by default for security.

Integrates with Conta Simples to manage business banking, credit cards, and team accounts through natural language. Provides tools for viewing statements, managing cards, categories, users, and invites.

Connects Mercado Pago accounts via Open Finance Brasil to AI assistants for read-only queries about balances, statements, credit card bills, and investments.

USDC payments for AI agents on Base. Direct transfers, pre-funded tabs, x402 paywall handling, and service discovery.

Read-only MCP server for the Helcim payment API, letting AI agents safely query customers, invoices, card transactions, subscriptions, and more without risking financial mutations.

Enables agents to list, preview, confirm, and pay for HTTP resources via x402, while providing a payment ledger and Binance account/market-data context.

MCP server for the Stripe API with 10 tools covering payments, customers, invoices, and subscriptions. Generated with MCPForge. Destructive and financial operations require human approval.