All servers · Markets & trading · Agent payments (x402) · Crypto & blockchain

app.iomarkets/topup

app.iomarkets/topup · v0.2.8

Measured by MCP Station

Instruction-like text was found in create_pay_link. This is a pattern match, not a verdict. What we look for

Description written by the publisher, not verified

Travel eSIMs and mobile top-ups paid in USDC via x402. A technology demonstration, limited pilot.

Connect

claude mcp add --transport http topup https://iomarkets.app/mcp

{
  "mcpServers": {
    "topup": {
      "url": "https://iomarkets.app/mcp"
    }
  }
}

Tools as reported by the server

• lookup_phone
  Identify the country and mobile operator of a phone number and list the top-up offers available for it. Free. The operator is DETECTED from the number range and is a guess: MVNOs (Tesco Mobile, Giff Gaff, Lebara, Voxi, Sky…) resolve to the host network they ride on. Read the detected brand back to t
• list_offers
  Browse purchasable offers: mobile top-ups, travel eSIMs, prepaid bills, or international payment corridors (bank / mobile money / UPI) for a country. Free. Prices shown are indicative; the quote fixes them.
• quote
  Lock a price (10 minutes) for one purchase. Returns quoteId, exact USDC price and what will be delivered. Free. ALWAYS show the human the price and the recipient before buying.
• create_pay_link
  Create a checkout link a HUMAN pays from their own Algorand wallet (Pera). Use this when you have no wallet, or when the person should approve and pay themselves: they open the link, see the exact price, sign in their wallet, and the result (the eSIM QR code, or the top-up confirmation) appears on t
• buy
  Get the x402 payment challenge for a quote. This hosted server holds no wallet, so it does NOT spend your money: it returns the exact amount, asset, payTo address and facilitator for you to pay from your own Algorand wallet, then you POST the quote again with your payment signature. Requires prior h
• quote_vouchers
  Lock a price (10 minutes) for a BATCH of travel eSIMs paid in one payment: N claim links, one per person, for a group trip, a conference delegation or event giveaways. Each eSIM is bought when its link is claimed (the person opens it on their phone and installs the QR), and links nobody claims withi
• voucher_batch
  A paid voucher batch: every claim link, which have been claimed and delivered, the expiry, and any refund for unclaimed links. The batchId is the only handle on the links — keep it, and hand each person their own link privately (whoever opens a link first gets that eSIM).
• order_status
  Check an order. Poll every ~3 s until `terminal` is true: delivered (confirmation + signed receipt), refunded (refund txid + signed receipt) or refund_failed.
• verify_receipt
  Verify an ed25519-signed receipt: the signature, and — unless you pass onChain:false — both txids against an Algorand indexer. Give it an orderId to check one of this service's own orders, or a receipt object to check ANY receipt in this format, including one issued by another server.
• fx
  Indicative USDC → local-currency rate at our sale price, with an estimate for an amount. The quote is the binding price.
• ledger
  Public delivery ledger: totals, delivered-or-refunded %, volume, countries, recent orders.

Tool changes

• 2026-10-22: lookup_phone, list_offers, quote, create_pay_link, buy, quote_vouchers, voucher_batch, order_status, verify_receipt, fx, ledger
• 2026-10-16: lookup_phone, list_offers, quote, create_pay_link, buy, order_status, verify_receipt, fx, ledger

Website · JSON · Text for agents · Registry updated 2026-09-30