"How to Trade on E*TRADE" matching MCP connectors:

Buy a $2 novelty digital rock over x402 (USDC on Base). Serves payment instructions only.

See what actually settles on x402: wash-adjusted volume, payTo checks. Free, no key, no signup.

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).

Pre-payment merchant trust checks for x402 agents on Base and Solana.

Processor fees, charge-to-net, invoice totals and proration. 3 of 6 tools free.

Verify x402 payment endpoints before an AI agent pays: scam scan, on-chain checks, trust scores.

Agent-to-business commerce sandbox: intents, offers, bookings. Demo data, ed25519-signed calls.

Payments and pricing math sellers do weekly, computed deterministically over MCP: processor_fees breaks down payment costs with editable presets, charge_to_net answers what to charge to net a target amount, invoice_total validates and totals line items, with discount_stack, proration, and installment_plan in the premium tier.

320 AI models + 2,720 pay-per-call APIs. x402 USDC on Base or Solana, no API key.

Trust and payment layer for the agentic economy on the XRP Ledger.

Non-custodial USDC checkout on Solana for AI agents and humans. Six tools inspect a public checkout, prepare one-time or recurring payments under a hard USDC ceiling, and read payment or subscription status, always returning unsigned transactions for the caller's own wallet to sign so Rendben never holds funds or keys.

Payment-rail-independent intent-to-effect integrity for consequential agent actions.

Monetization gateway for MCP servers. Agents call a tool, receive an x402 v2 payment challenge, sign a USDC transfer on Base, and get the result. Payment is verified before the tool runs and settled only after it returns, so failed calls are never charged. Discovery and tool listing are free.

Monetize any MCP server: x402 paywall, pay-per-call billing in USDC on Base, agent marketplace.

Pay-per-request webpage-to-Markdown extraction for AI agents. $0.005 USDC via x402 on Solana.

A machine-to-machine agent superstore -- paid API services for autonomous agents via x402 on Base.

AI/LLM agent output audit MCP: policy eval, tamper-evident chain, AI safety, x402 USDC on Base.

Find available sponsorship slots and create buyer-confirmed Stripe Checkouts on kannkidas.de.

German e-invoicing: generate XRechnung 3.0, pre-check and extract (incl. ZUGFeRD PDF). Paid.

Pay-per-call QUBO/Ising optimization for AI agents via x402 (USDC on Base). No API keys.