Skip to content
IoMarkets Topup logo

IoMarkets Topup MCP server

Which servers in the official MCP registry are IoMarkets Topup's own, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-24

← Back to IoMarkets Topup

Whose server it is
  • Registry nameapp.iomarkets/topupverified in the MCP registry

The registry name sits under iomarkets.app. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-24
  • Stateanswerschecked 2026-10-24
  • Tools11
  • Server calls itselfiomarkets-topup
  • Server version0.1.0
  • Protocol version2025-06-18

On 2026-10-24 the server answered initialize and tools/list without a sign-in. First answer in 174 ms.

Should an agent connect itNot proven either way yet
  • Whether its tools do the product's job has not been judged yet.
  • Checked on 3 of the 7 days it takes to judge reliability.

Once connected

  • For "buy travel eSIM data plans per order", the likely first call is list_offers.
  • Keep approval on for create_pay_link: they delete, send or pay without saying so.
  • create_pay_link change data without a sign-in: anyone with the address can call them.
  • Parameters are untyped or undescribed in 7 of 11 tools: check arguments before calling.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 3, the first on 2026-10-24
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 3 so far
  • Answeredmeasuring3 of the 7 daily checks it takes to print a share
  • Median first answer556 ms
  • Space in an agent's context≈ 2,147 tokensthe definitions of all its tools (11), which an agent carries on every turn
  • Tool definitionsC · 71 of 100
  • Typed results0 of 11 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a type: in 1 of 11
  • Parameters without a description: in 7 of 11
  • Not saying whether it only reads or can destroy: 11 of 11

What an agent can do with it

  • not sure · have an agent pay a supplier for phone credit
  • can do · buy travel eSIM data plans per order
  • not sure · bulk-pay spreadsheet rows to phone numbers or accounts

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

  • Tools that delete, send or pay without telling the client so: create_pay_link
  • Tools that change data, on a server that answers without a sign-in: create_pay_link

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (30%), doing the product's job (25%), definitions (20%), context (10%) and use (15%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers11 tools · read 2026-10-24
  • 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…

  • 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…

  • 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…

  • 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…

  • 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…

  • 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…

  • 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.

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

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

Add it

Claude Code, in a terminal

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

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://iomarkets.app/mcp as a custom connector in the settings.

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.