"YAPI API Documentation Integration Guide" matching MCP connectors:

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

Pre-payout IBAN screening for AI agents: validation, sanctions (OFAC), Swiss clearing, risk

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

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

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

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

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).

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

Kiwify digital-products platform, sales (list, detail), subscriptions (list, cancel), products and a

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

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.

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.

Keyless non-custodial crypto payments for AI agents: payment links and tip jars, no API key.

Search travel eSIM plans for 150+ countries and buy via Stripe link; eSIM QR delivered by email.

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.

Pay-per-call agent infrastructure: file storage & handoff, compute tools, messaging, e-sign, KYC.