"How to use Google Calendar and Gmail effectively" matching MCP servers:

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

Payment infrastructure MCP server enabling AI agents to make gasless USDC payments on Base and JIT single-use virtual card checkouts, with zero-trust card handling, merchant checkout hints, and signed receipts.

Enables to generate, decode, and validate PayBySquare QR codes for Slovak payments, with MCP integration for use with Claude Desktop and other MCP clients.

A Model Context Protocol server that enables LLMs to interact with the Lob.com API for address verification and sending physical mail. It provides 76 tools across 12 resource groups including postcards, letters, checks, and templates with built-in safety features for production use.

Enables reading the school lunch calendar, managing students, placing and changing orders, and tracking deliveries and payments on a My Hot Lunchbox parent account. It signs in server-side with account credentials and exposes 38 MCP tools with confirm-gated write operations.

MCP server for document intelligence via x402 micropayments. 6 tools: document analysis, invoice extraction, screenshot data, alt text, PII detection, sentiment analysis. Pay-per-use with USDC on Base — no API keys needed.

Enables AI agents to search, license, and pay for rights-clean music per use, returning a verifiable license certificate.

Enables AI agents to spend with the user's own key by paying via USDT TRC-20 and buying Visa/Mastercard prepaid cards, travel eSIMs, and gift cards, and also provides access to policy and how-to documentation.

Deprecated browser-automation MCP server for Venmo, PayPal, and Cash App (withdrawn due to ToS violations, account suspension risk, and credential exposure). Do not use.

Pay-per-use semantic web search for AI agents. Powered by SearxNG, agents pay in sats via Lightning Network micropayments — no API keys required.

A privacy-first MCP server providing 14 offline Brazilian utilities including document validation, boleto parsing, PIX BR Code generation/parsing, and calendar tools.

A drop-in MCP skill that gives AI agents a real on-chain wallet on Pharos — check balances, read live prices, move tokens, pay only when conditions are met, screen for scams, and buy x402 pay-per-use APIs, all from natural language.

Connects AI agents to payment processors (Lithic, Stripe, PayPal) for automated shopping with single-use virtual cards and transaction management.

Open-source MCP server for Teamleader Focus CRM. Use Teamleader inside Claude and other AI assistants: contacts, deals, quotations, invoices, projects and more.

Enables AI agents to create and manage payment links programmatically via the Global Payments API, supporting single-use and multi-use links, retrieval, and API documentation retrieval.

Enables AI assistants to read Itaú bank account information (balances, statements, credit card bills, investments) via Open Finance Brasil, read-only.

Boilerplate for creating a remote MCP server on Cloudflare with user login (Google/GitHub) and Stripe payment processing, enabling both free and paid MCP tools.

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

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.