"Exploring RAG through defined workspaces" matching MCP servers:

Enables AI agents to create and manage sellable listings, handle orders, and integrate Stripe payments through natural language using ListBee's API.

Prepare custody-separated Base USDC cash-out plans, list supported fiat rails, and track settlement state through Peer Cash.

Exposes all 379 Invoice Ninja v5 REST API endpoints through three consolidated tools (list, describe, call), enabling full invoice management and business operations via natural language.

Enables AI agents to quote, authorize, submit, and verify agent-to-agent USDC payments on Base through standard MCP tools over stdio.

Enables AI agents to stamp, cancel, and query Mexican CFDI 4.0 invoices through MCP tools, with support for local stdio and hosted HTTP transport.

Enables interaction with FastSpring e-commerce platform for managing orders, subscriptions, and accounts through natural language using the Model Context Protocol.

Enables AI clients to check an application balance and preview or send bulk SMS and airtime, either through a hosted OAuth connection that needs no local install or via a self-hosted stdio/Cloudflare Workers deployment using your own credentials. Sending is preview-only by default and gated behind environment, recipient allowlist, and mutation opt-in settings.

Lets MCP-capable AI assistants interact with the Clockbook freelance marketplace through GraphQL, covering talent search, job postings, proposals, contracts, milestones and escrow, wallet, messaging, and notifications.

Enables AI assistants to read your own Buy Me a Coffee account data, including recent supporters, Extras purchases, memberships, and currency totals, through a read-only MCP server.

Enables AI agents to discover x402 payment services and query on-chain-verified settlement volumes per facilitator through the Model Context Protocol.

MCP server for the Monei API that gives AI agents access to wallets, transfers, crypto sends, swaps, offramp, and bill payments through natural language.

Enables interaction with the Yugo Payments API to manage payins, payouts, and accounts through auto-generated MCP tools.

Enables users to access transaction reports and exports, create payment links, and optionally match payments to a payer roster workbook through an MCP interface.

Enables interaction with the Centrapay payments API for testing NZ payment flows, including creating, managing, and settling payment requests through natural language.

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 validating and querying SPEI transfers through 66 public M2M operations, with configurable profiles and risk controls.

Enables 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.

Enables AI agents to manage crypto payments, stores, products, and orders through the Model Context Protocol.

Enables managing CloudPayments operations including one-step and two-step payments, refunds, subscriptions, orders, and transaction history through natural language.

An MCP server for KG Financial's payment services integration, enabling AI coding tools to generate accurate code by automatically searching payment integration documentation through natural language queries.