"A system like ChatGPT with memory to provide past query context in conversations" matching MCP connectors:

Ready for a new way to bill pay? Pay any US bill in a snap, right from your AI assistant. Describe or snap a photo of your bill (electric, water, gas, internet, phone, medical, credit card, rent, parking tickets, traffic violations and more) and Papaya reads it, then hands you a secure link to pay by card. Fast, secure, and no juggling twelve logins, with full or partial payments and status updates. Available in the US only. Powered by Papaya (papayapay.com).

Pay any US bill in a snap, right from your chat — utilities, medical, rent, parking tickets & more.

ManaBuy MCP Server is a stdio-based Model Context Protocol server for integrating ManaBuy product and order APIs with MCP clients. It exposes tools for product search, product detail retrieval, SKU and order-field inspection, order quotation, authenticated order creation, order status lookup, and order detail retrieval, with explicit confirmation required before any order-creation workflow.

The Apiosk MCP lets AI agents discover, pay for, execute, and publish APIs through the Apiosk gateway. It is a machine endpoint, not a website, so connect it from an MCP client (Claude, Cursor, ChatGPT, and others) rather than browsing it here.

Pay-per-query x402 business intelligence on Base, settled in USDC via the native 402 payment flow.

ifsc-in MCP — Indian bank branch IFSC code lookup via Razorpay's open

Viridis Verified: wrap any MCP server with tamper-evident delivery receipts + metered fees.

Pre-signature x402 payment-risk oracle. AI agents call forecast_payment before paying a counterparty and get a GO / HOLD / STOP verdict from settlement reputation, price-anomaly (quoted vs the payee's own median), and OFAC sanctions screening — plus a third-party-verifiable Ed25519 signed receipt. Verdict only; never takes custody. Free under $10 at risk; returns an x402 payment challenge over that.

Validate and generate EU e-invoices (UBL 2.1 / EN 16931) via a hosted MCP server.

Solana USDC and x402 payments for agents, with receipts, entitlements and prepaid API access.

Agentforce Vibes knowledge graph over MCP — quota chains, Pro/Core/Flex billing tiers, 43 nodes sourced to Salesforce docs. Works in claude.ai in 30 seconds.

Buy any of 24,000+ live x402 services with USDC on Base — the open marketplace for the agent economy.

Send real faxes to EU institutions: pay per fax via checkout link or prepaid API key.

Pre-signature x402 payment verdict (GO/HOLD/STOP) for AI agents, with a verifiable signed receipt.

Agent-native double-entry accounting ledger with x402 micropayments

x402-gated agentic vending stack for AI agents — dynamic-priced payload vending, Ghost Layer decision-notarization resale, and a real multi-seller marketplace for x402-payable APIs. Base/USDC + XRPL/RLUSD settlement.

Unified AI API marketplace - LLMs, image, video, audio, MCP tools with x402 payments.

Real licensed Kenyan doctors, pharmacy and groceries. AI discovery only, payment held in escrow.

CardGuard is a high-performance MCP-compliant service designed for real-time transaction fraud detection and IP threat intelligence. It provides microsecond-level scoring and multi-dimensional analysis (IP geolocation, BIN validation, and risk pattern recognition) for autonomous AI agents

Agent-native helpdesk. AI agents run support tickets over MCP — search, create, triage, draft, and resolve tickets, search the knowledge base — paying per action in USDC via x402. Read tools are free; priced tools return HTTP 402 with payment terms.