"Searching PubMed references and formatting them in Markdown" matching MCP servers:

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

MCP server for Samsung Smart TV in-app payment (Samsung Checkout/DPI) development, enabling AI coding tools to provide real-time API references, code generation, troubleshooting, and implementation guides.

Enables AI agents to integrate the SIBS payment gateway, providing tools for creating checkouts, checking payment status, issuing refunds, and generating Multibanco references directly through natural language.

Enables AI agents to integrate Midtrans payments by providing comprehensive documentation, API references, and code examples for 15+ payment methods across 5 languages. Includes tools for generating charge requests, webhook handlers, and searching documentation without requiring API keys.

Enables AI assistants to operate the Ribbo recurring billing API, allowing them to manage subscriptions, check entitlements, refund payments, charge immediately, and generate payment or renewal links.

Provides MCP-callable workflow rails for agents, enabling bounded work execution, movement-fee quotes, payment authority references, paid rail runs, and signed receipts.

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.

Enables AI clients to read and modify Settle Up group finances — listing groups, checking who owes whom, searching transactions, and recording, editing or deleting shared expenses and debt-settling transfers. Authenticates with Settle Up email and password credentials, with group and member creation optionally unlocked by an extra environment flag.

Enables searching the Bazaar resource catalog and making spend-capped paid calls to x402 endpoints, integrated with Rail402's Stellar payment facilitator.

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

Hosted MCP server for Argentine commerce: real AFIP/ARCA fiscal invoicing (live CAE), MercadoPago payments, logistics, catalog, cash register and WhatsApp behind one authenticated endpoint. Includes 9 no-auth fiscal validation/formatting tools.

Enables AI agents to accept payments in Tanzania via M-Pesa, Tigo Pesa, Airtel Money, and cards through Flutterwave's hosted checkout.

Lets AI agents accept payments in Australia via Stripe hosted checkout by creating payment links and checking payment status.

Lets AI agents accept payments in Guatemala via cards (Visa/Mastercard) through a stateless Recurrente hosted checkout, providing tools to create payment links and query payment status.

Lets AI agents accept payments in Malta via Stripe's hosted checkout, supporting cards, Apple Pay, and Google Pay.

Build a paid MCP server that charges AI agents per call in USDC, with automatic payment handling via HTTP 402 and EIP-3009.

Enables AI agents to send Norway B2B e-invoices over the Peppol network in EHF format via Storecove, including recipient discovery, invoice creation, and delivery evidence.

A remote MCP server that lets any AI agent accept payments in New Zealand via Stripe's hosted checkout.

Enables AI agents to accept payments in Greece via Stripe hosted checkout, supporting cards and digital wallets.

Connect your Clear bank account to AI assistants like Claude and ChatGPT via Open Finance Brasil to query balances, statements, credit card bills, and investments in natural language (read-only).