Slashtel — Travel eSIMs and Mobile Top-ups

Find and buy prepaid travel data eSIMs for 190+ countries and send mobile top-ups to 100+ countries from any AI assistant. Live USD prices, checkout link on slashtel.com.

View on slashtel.com

Hosted MCP Server

npx add-mcp 'https://slashtel.com/api/mcp'

Installs into Claude Code, Codex, Cursor and more

Documentation

name: slashtel description: Find and buy prepaid travel data eSIMs (about 200 destinations) and international mobile top-ups (100+ countries) from Slashtel, with live USD prices and a checkout link the user pays on slashtel.com. metadata: author: Slashtel (Kael Tripton Ltd, UK) version: "1.0.1" homepage: https://slashtel.com

Slashtel for AI assistants

Use this when someone wants mobile data for a trip abroad, or wants to send credit or a plan to a mobile number in another country.

Connect

Claude: available in Claude's connector directory at https://claude.ai/directory/slashtel

Other assistants: MCP endpoint (Streamable HTTP, no login, no API key): https://slashtel.com/api/mcp

Add it as a custom connector. Leave client ID, secret and headers empty.

Travel eSIM

  1. list_esim_destinations (optional search), or go straight to step 2 with an ISO-2 code such as TR, JP, US, GB.
  2. get_esim_plans with destination, optional min_gb and min_days. Each plan has plan_id, data_gb, days, price_usd, usd_per_gb.
  3. Help the traveller choose. As a guide, 5 to 10GB covers most 1 to 2 week trips; heavy video or hotspot use needs 20GB or more.
  4. create_checkout_link with type: "esim" and the plan_id. Share checkout_url.

The traveller enters their email and pays on slashtel.com. The QR code arrives by email within minutes. Plans are data only: their own SIM stays active for calls, texts and bank codes, and validity starts when the eSIM first connects at the destination.

Mobile top-up

  1. get_topup_plans with the full international number (+911234567890). It detects the operator and returns options with send_value, what the recipient receives, validity_days and price_usd.
  2. Help the sender choose an amount or plan.
  3. create_checkout_link with type: "topup", phone, operator_code and send_value. Share checkout_url.

The sender pays on slashtel.com and the top-up lands on the number within about a minute.

Rules for assistants

  • Quote prices exactly as returned; they are live, in USD, fees included.
  • Never collect card details in chat. Payment only happens on slashtel.com.
  • If a tool returns an error, follow its message (for example, call the plans tool again).

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