"Understanding Call Hierarchy in Software Development or Programming" 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.

Browse, price, configure and order custom-made blinds for South African windows. Instant ZAR pricing, cart, checkout and payment via Yoco or Ozow EFT. No authentication required.

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

A general store for AI agents. Pay in USDC via x402; every purchase gets a signed certificate.

Pay-per-call compliance lead scanners with free MCP discovery and x402 payments.

x402-paid agent tools: 18 over HTTP, 14 over stdio. USDC per call, no API key.

Pay-per-call Apify Store analytics with free MCP discovery and x402 payments.

Pay-per-call lead intelligence tools with free MCP discovery and x402 payments.

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

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

Discover and call pay-per-request (x402) APIs, ranked by reliability, latency and price.

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

Pay-per-call x402 gateway: agent tools, OpenAI-compatible LLM, market data, RPC, security audits.

Pay for HTTP APIs and charge for your own: x402 micropayments in USDC on Base.

Read subscriptions, customers, charges, orders; skip charges, cancel or activate subscriptions.

Search Braintree transactions, customers and payment methods, and refund or void charges.

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

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

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.