"Free Tools for Online Searches" matching MCP servers:

• 

  QuickBooks Online MCP Serverofficial

  Intuit-CA

  A

  license

  -

  quality

  B

  maintenance

  Enables full CRUD operations on 29 QuickBooks Online entity types and 11 financial reports via natural language, allowing users to manage customers, invoices, payments, and more through MCP-compatible clients.

  Last updated 2026-06-13

  Apache 2.0

• @theyahia/atol-online-mcp

  theYahia

  A

  license

  -

  quality

  D

  maintenance

  MCP server for ATOL Online fiscal receipt API. Enables 54-FZ compliant receipt generation, refunds, corrections, and status checks for Russian online cash registers.

  Last updated 2026-04-01

  8

  MIT

• Stripe Testing Tools MCP

  hideokamoto

  A

  license

  -

  quality

  A

  maintenance

  A Model Context Protocol (MCP) server that provides testing and debugging tools for Stripe integrations, including test clock management, customer and product management, and subscription testing.

  Last updated 2026-07-08

  7

  9

  MIT

• Online Boutique AI Assistant

  arjunprabhulal

  A

  license

  -

  quality

  D

  maintenance

  MCP server for Online Boutique AI Assistant that exposes 18 e-commerce microservice functions via the Model Context Protocol, enabling any MCP client to manage products, carts, checkout, payments, and shipping.

  Last updated 2025-09-22

  MIT

• 🍋 LemonCake — Billing &

  evidai

  A

  license

  A

  quality

  A

  maintenance

  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.

  Last updated 2026-06-17

  6

  116

  2

  MIT
• 

  mcp-server-checkofficial

  check-technologies

  A

  license

  A

  quality

  B

  maintenance

  An MCP server that wraps the Check Payroll API, providing 263 tools for managing companies, employees, contractors, payrolls, tax configuration, and more.

  Last updated 2026-07-08

  3

  18

  MIT

• mcp-fattura-elettronica-it

  cmendezs

  A

  license

  A

  quality

  A

  maintenance

  Model Context Protocol (MCP) server for Italian Electronic Invoicing (FatturaPA / SDI). Provide tools to validate, generate, and explore API specifications for Sistema di Interscambio (SDI) interoperability.

  Last updated 2026-07-10

  27

  Apache 2.0

• @powforge/captcha-mcp

  zekebuilds-lab

  A

  license

  A

  quality

  B

  maintenance

  MCP server that gates API calls to AI agents using proof-of-work (free) or Lightning payment (3 sats), providing challenge, verify, and status tools for per-call authentication without accounts.

  Last updated 2026-05-14

  3

  98

  1

  MIT

• OpenAPI Doctor

  Baneado98

  A

  license

  A

  quality

  C

  maintenance

  A template for building MCP servers with a built-in paywall gate that offers free local execution and premium server-side execution via Stripe and x402 payment lanes.

  Last updated 2026-06-23

  1

  MIT

• blank-invoice-maker-mcp

  InnarM

  A

  license

  A

  quality

  B

  maintenance

  Create free, no-signup invoices from your AI assistant — the create_invoice tool returns a link that opens blankinvoicemaker.com pre-filled, ready to download as a watermark-free PDF.

  Last updated 2026-06-16

  2

  106

  1

  MIT
• 

  bolthubofficial

  signaltech-org

  A

  license

  A

  quality

  A

  maintenance

  Discover and pay for APIs and MCP tools per call over Bitcoin Lightning (L402): search the bolthub marketplace, preview prices, and pay from your own wallet (LND, NWC, LNbits) with hard budgets, prepaid credit, scoped sub-agent delegation, and verifiable receipts. Non-custodial and works without a wallet for search and free tools.

  Last updated 2026-07-15

  19

  MIT

• toreador-mcp-server

  Logitale

  A

  license

  A

  quality

  C

  maintenance

  Generate crypto QR codes (BTC, ETH, SOL, USDC, USDT, EURC) and manage payment sessions from Claude Desktop or any MCP client. Non-custodial, free.

  Last updated 2026-06-06

  5

  66

  1

  MIT
• 

  Swarmwageofficial

  Swarmwage

  A

  license

  A

  quality

  A

  maintenance

  MCP server exposing the Swarmwage agent hire protocol as tools for any MCP-compatible AI agent (Claude Desktop, Claude Code, Cursor, Cline, etc.)

  Last updated 2026-07-19

  11

  3

  MIT
• 

  warp-agent-mcpofficial

  warpfreight

  A

  license

  A

  quality

  C

  maintenance

  Quote, book, and track real LTL, FTL, cargo van, and box-truck freight through the Warp network - 20 tools, in-chat login, Stripe-charged bookings, and real carrier dispatch. Quoting is keyless; booking needs a free Warp account with a card on file.

  Last updated 2026-07-03

  20

  409

  3

  MIT

• ucp-mcp-server

  nguthrie

  A

  license

  A

  quality

  D

  maintenance

  Lets AI assistants shop at UCP-enabled merchants through tools for discovery, checkout, discounts, fulfillment, and payment.

  Last updated 2026-02-14

  5

  7

  MIT

• affiliate-router-mcp

  forgemeshlabs

  A

  license

  A

  quality

  A

  maintenance

  Vendor-neutral MCP server that discovers, routes, and attributes revenue across paid APIs, referral links, and affiliate programs for agent tools.

  Last updated 2026-06-17

  8

  74

  MIT

• mcp-ksef-pl

  cmendezs

  A

  license

  A

  quality

  B

  maintenance

  Model Context Protocol (MCP) server for Polish Electronic Invoicing (KSeF / FA(2)). Provides tools to validate, generate, and explore API specifications for KSeF interoperability.

  Last updated 2026-07-15

  10

  2

  Apache 2.0

• MCP Midtrans Documentation

  rissets

  A

  license

  A

  quality

  D

  maintenance

  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.

  Last updated 2026-06-23

  9

  1

  MIT

• mcp-facture-electronique-fr

  cmendezs

  A

  license

  A

  quality

  B

  maintenance

  Model Context Protocol (MCP) server for French Electronic Invoicing (NF XP Z12-013). Provide tools to validate, generate, and explore API specifications for PDP/OD interoperability.

  Last updated 2026-07-15

  34

  Apache 2.0

• @mobilpay/mcp-server

  KGMobilians

  A

  license

  A

  quality

  C

  maintenance

  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.

  Last updated 2026-04-23

  6

  16

  MIT