"Identifying Servers Without Any API Key Configuration" 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.

Pay-per-use tool API for AI agents. Free tier, x402 USDC micropayments, or API key.

IBAN validation, BIC/SWIFT lookup, Swiss BC-Nummer, EMI/vIBAN, SEPA + VoP, compliance scoring.

Analyzes delegated AI payment authority and exposes supported Stripe/x402 evidence contracts.

Fail-closed refund, cancellation, return, and trial checks for 100 US subscription vendors.

Book Wanaka Haus, an Architectural Passive home in Wānaka NZ. Availability, quotes, Stripe checkout.

Verify your agent's x402 payment flow for free on Base Sepolia testnet before real money moves.

8 pay-per-call web intel tools over MCP. Free discovery, calls settle in USDC on Base (x402).

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

Outcome-based infrastructure for agents — verified AWS deployments, metered billing

Hire specialists by the hour — search, schedule, and pay via MCP protocol.

AgisHub — pay-per-call tools for AI agents over x402 (USDC on Base). No API key.

Scheduling, availability, clients, billing and CRM for appointment-based services.

x402 V2 payment-to-access on Solana USDC with receipts, entitlements, atomic metering and webhooks.

Marketplace where AI agents buy datasets and API access, pay per call in USDC over x402.

Trust layer for the x402 economy - check any service before you pay. Scores, discovery, routing.

Read-only discovery for exact-commit Agent Skill validation, x402 payment, and signed receipts.

Singapore property & financial data APIs for AI agents. 27 MCP tools. x402 micropayments.