The Topup MCP server,
connected in one click.
Travel eSIMs for 197 destinations and airtime top-ups in 150+ countries, paid in USDC via x402. Connect the official Topup MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Add Topup to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http topup https://iomarkets.app/mcpRun in your terminal, then restart Claude Code.
Topup · https://iomarkets.app/mcp
What your AI can do with Topup
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “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.”
“Use “list_offers”: Browse purchasable offers: mobile top-ups, travel eSIMs, prepaid bills, or international payment corridors (bank / mobile money / UPI) for a.”
“Use “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 pr.”
“Use “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.”
How secure is the Topup MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Topup holds up.
Official endpoint
Operated by Topup (iomarkets.app) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If Topup adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick Topup
Choose Topup in the gate directory. No sign-in needed.
Use it anywhere
Topup's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools Topup exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
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
list_offers — Browse purchasable offers: mobile top-ups, travel eSIMs, prepaid bills, or international payment corridors (bank / mobile money / UPI) for a
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 pr
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
order_status — Check an order. Poll every ~3 s until `terminal` is true: delivered (confirmation + signed receipt), refunded (refund txid + signed receipt)
verify_receipt — Verify an ed25519-signed receipt: the signature, and — unless you pass onChain:false — both txids against an Algorand indexer. Give it an or
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.
Who runs the Topup MCP server?
The Topup MCP server at a glance
https://iomarkets.app/mcpQuestions, answered
Is there an official Topup MCP server?
Yes — Topup operates its own remote MCP server at iomarkets.app. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect Topup to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick Topup in the directory. No account or sign-in is needed. From then on, Topup's tools are available in every client you've connected to gate.
Do I need to host anything?
No. Topup runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the Topup MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect Topup in minutes. No credit card required.
Connect more than just Topup
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up Topup in: Claude · Claude Code · ChatGPT · Cursor · VS Code