"Designing a memory system for persona-based agents to improve user experience" matching MCP servers:

• 

  ar-agentsofficial

  ar-agents

  A

  license

  -

  quality

  B

  maintenance

  Agent Toolkit for Mercado Pago

  Last updated 2026-08-03

  1

  MIT

• Lightning Memory

  singularityjason

  A

  license

  A

  quality

  C

  maintenance

  Persistent memory and payment safety for AI agents on Lightning. Enables agents to remember purchases, track vendor reputations, enforce budgets, and share trust signals via Nostr.

  Last updated 2026-03-25

  22

  9

  MIT

• 🍋 LemonCake — Billing &

  evidai

  A

  license

  A

  quality

  B

  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

  62

  2

  MIT
• 

  attest-mcpofficial

  attestagents

  A

  license

  A

  quality

  C

  maintenance

  Enables AI agents to scan payment endpoints for safety, returning a letter grade (A–F) and verdict before authorizing payments.

  Last updated 2026-06-07

  2

  18

  MIT
• 

  @chainpayto/mcp-serverofficial

  chainpayto

  A

  license

  A

  quality

  D

  maintenance

  Enables AI agents to directly operate ChainPay cryptocurrency payment system, including order creation, balance checks, and withdrawals.

  Last updated 2026-04-24

  6

  20

  MIT
• 

  Yolfiofficial

  yolfinance

  A

  license

  A

  quality

  A

  maintenance

  Yolfi Agent Kit for AI coding agents: receive crypto, SaaS payment, stablecoin checkout, payment links, payment status checks, webhook verification, and webhook-based access logic to applications through Yolfi

  Last updated 2026-07-20

  13

  37

  178

  MIT

• mcp-meroshare

  tekchapagain1

  A

  license

  A

  quality

  B

  maintenance

  MCP server for MeroShare, enabling AI tools to manage IPO/FPO applications, portfolio, and share transactions in Nepal's online share system.

  Last updated 2026-06-20

  10

  MIT

• InventorySystem MCP Server

  AllanSJoseph

  F

  license

  B

  quality

  D

  maintenance

  A Python MCP server that connects to an Inventory Management System, providing 15 tools for CRUD operations on users, inventory items, and bills.

  Last updated 2025-08-16

  15

  1

• payme-mcp

  theYahia

  A

  license

  B

  quality

  D

  maintenance

  MCP server for Payme payment system (Uzbekistan). Supports transactions, statements, payment links, and balance queries via JSON-RPC 2.0.

  Last updated 2026-04-01

  8

  30

  MIT
• 

  Revenium MCP Serverofficial

  revenium

  A

  license

  C

  quality

  B

  maintenance

  Connects AI agents to Revenium for cost tracking, alerting, and usage-based billing, enabling AI assistants to manage costs, set alerts, and handle billing operations.

  Last updated 2026-07-26

  7

  MIT
• 

  Veridex Bazaar Discovery MCPofficial

  Veridex-Protocol

  A

  license

  -

  quality

  C

  maintenance

  Enables AI agents to discover, query, and pay for HTTP endpoints and MCP tools using Stellar USDC/SEP-41 stablecoins through a federated P2P bazaar catalog and x402 payment facilitator.

  Last updated 2026-08-03

  Apache 2.0
• 

  janus-kinematic-driveofficial

  janus-ubos-republic

  A

  license

  -

  quality

  B

  maintenance

  Gives your agent a private Kinematic Drive: a deterministic memory engine for sub-millisecond exact recall over code and docs with no hallucination. Also provides self-serve checkout and metered pay-per-call tools for AI agents.

  Last updated 2026-07-16

  MIT
• 

  opendexterofficial

  Dexter-DAO

  A

  license

  -

  quality

  C

  maintenance

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

  Last updated 2026-08-05

  2

  MIT
• 

  inflow-mcpofficial

  inflowpayai

  A

  license

  -

  quality

  D

  maintenance

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

  Last updated 2026-04-15

  6

  MIT
• 

  mpp32-mcp-serverofficial

  MPP32

  A

  license

  -

  quality

  B

  maintenance

  MCP server that allows AI agents to discover and pay for thousands of APIs (x402 on Solana/Base) using a single key, with automatic payment handling and a federated catalog of machine-payable endpoints.

  Last updated 2026-08-04

  236

  MIT
• 

  @1ly/mcp-serverofficial

  1lystore

  A

  license

  -

  quality

  D

  maintenance

  Enables AI agents to discover, pay for, and sell APIs using crypto on Solana and Base networks, with support for automated x402 payments.

  Last updated 2026-03-05

  108

  3

  MIT

• sales-mcp

  kbnam33

  A

  license

  -

  quality

  D

  maintenance

  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.

  Last updated 2025-08-03

  17

  MIT

• Mexico Payments MCP

  junter1989k-ai

  A

  license

  -

  quality

  B

  maintenance

  Enables AI agents to accept payments in Mexico via Mercado Pago, including OXXO cash vouchers, SPEI bank transfers, cards, and Mercado Pago wallet, through a stateless hosted checkout.

  Last updated 2026-07-11

  MIT

• kitepass-mcp

  gnanam1990

  A

  license

  -

  quality

  C

  maintenance

  Enables LLMs to query Kite Passport user info, sessions, wallet balance, and backend health via read-only MCP tools.

  Last updated 2026-06-13

  MIT

• serbia-invoice-mcp

  junter1989k-ai

  A

  license

  -

  quality

  B

  maintenance

  Enables AI agents to issue, query, and cancel Serbia SEF eFaktura electronic invoices (UBL 2.1 SRB-CIUS) into the national Ministry of Finance system, using the merchant's own API key.

  Last updated 2026-07-11

  MIT