"Using OpenRouter API to integrate calls to other LLMs on Claude desktop" 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).

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

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

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

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

Website monetization for AI agents: apply, integrate ads, reporting, and payouts — all over MCP.

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

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

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

Manage Memberful members, subscriptions, plans, passes and coupons via the GraphQL API.

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.

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

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

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.

Discover Algerian COD stores on Mystoq, or manage your own: products, prices, shipping/fraud tools.

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