esimgomobile — Travel eSIM Tools

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

Travel eSIM plan catalog, coverage and trip-planning tools for agents and developers.

Measured statistics

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "esimgomobile — Travel eSIM Tools": {
      "url": "https://mcp.esimgomobile.com/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (36)

• run_speed_test read-only

  Use when the user wants to measure their current internet speed. Runs a real download/ping measurement in the interactive widget and reports Mbps, ping, and a quality grade.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• get_public_ip read-only

  Use when the user asks for their public IP address. Returns the IP address the request arrives from, as seen by the server edge.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• check_roaming_status read-only

  Use when the user wants to know whether they are currently roaming. Compares their home country against the country they are in now.

  Parameters:

  • home_country (required) — string — User's home country, e.g. United States
  • current_country (required) — string — Country the user is currently in

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• measure_latency read-only

  Use when the user wants the network latency to a host. Performs a real HTTPS HEAD request from the deployment edge and reports round-trip time to first byte in milliseconds.

  Parameters:

  • destination (required) — string — Hostname or public IP to probe, e.g. example.com or 8.8.8.8

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• grade_connection_quality read-only

  Use when the user gives you download/upload speed and ping numbers and wants a verdict. Grades the connection Excellent/Good/Fair/Poor with practical advice.

  Parameters:

  • download_mbps (required) — number — Download speed in Mbps
  • upload_mbps (required) — number — Upload speed in Mbps
  • ping_ms (required) — number — Ping in milliseconds

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• detect_captive_portal read-only

  Use when the user is on hotel/airport/cafe Wi-Fi and suspects a login page is blocking them. Gives a step-by-step guided check — no automatic probing.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• check_dns_leaks read-only

  Use when the user wants to check whether their DNS queries leak outside their VPN. Gives a guided manual check — browsers cannot run automatic DNS probes.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• get_wifi_security_checklist read-only

  Use when the user is about to use public, hotel, or airport Wi-Fi. Returns a practical safety checklist.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• lookup_speed_requirements read-only

  Use when the user asks how much bandwidth an activity needs (video calls, 4K streaming, gaming). Looks up reference requirements from a built-in table.

  Parameters:

  • activity (required) — string — Activity, e.g. '4K streaming', 'video calls', 'gaming'

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• check_coverage read-only

  Use when the user asks whether a country is covered by esimgomobile plans. Answers from esimgomobile's own published plan catalog (live-checked) plus the built-in country network reference.

  Parameters:

  • country (required) — string — Country to check, e.g. Japan

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• estimate_data_usage read-only

  Use when the user is planning a trip and asks how much mobile data they need. Estimates from trip days, daily hours online, and a light/moderate/heavy usage profile, then suggests a plan size.

  Parameters:

  • days (required) — number — Trip length in days
  • hours_per_day (required) — number — Hours online per day
  • usage_profile (required) — string — Usage profile

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• calculate_roaming_cost read-only

  Use when the user wants to compare their home carrier's roaming fees against a travel eSIM. Compares a user-supplied carrier day-pass rate with an illustrative travel-eSIM daily rate.

  Parameters:

  • days (required) — number — Trip length in days
  • home_carrier_daily_rate_usd (required) — number — Home carrier roaming day-pass price in USD

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• plan_multi_country_esim read-only

  Use when the user has a multi-country itinerary and asks which eSIM plan type fits. Recommends single-country vs regional vs global plans from the country list.

  Parameters:

  • countries (required) — array — Countries on the itinerary

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• check_device_compatibility read-only

  Use when the user asks whether their phone supports eSIM. Checks the model against a built-in device table, with a manual fallback check.

  Parameters:

  • device_model (required) — string — Device model, e.g. 'iPhone 13', 'Galaxy S23'

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• check_carrier_lock read-only

  Use when the user needs to check whether their phone is carrier-unlocked (required for travel eSIMs). Walks through the check on iPhone and Android.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• find_best_network read-only

  Use when the user asks which mobile network is best in a specific city. Ranks operators by observed cell-tower density from the OpenCelliD open dataset — a coverage proxy, not a speed measurement.

  Parameters:

  • city (required) — string — City, e.g. Tokyo
  • country (required) — string — Country, e.g. Japan

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• get_airport_connectivity read-only

  Use when the user asks about connectivity at an airport (Wi-Fi, SIM vendors, eSIM tips). Answers from a researched dataset of major international airports: free Wi-Fi details, where to buy a SIM, and eSIM options on arrival.

  Parameters:

  • airport_code (required) — string — IATA airport code, e.g. NRT

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• find_free_wifi read-only

  Use when the user asks where to find free Wi-Fi in a city. Queries the live OpenStreetMap directory (Nominatim geocoding + Overpass) for community-mapped free Wi-Fi hotspots near the city.

  Parameters:

  • city (required) — string — City to search in

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• get_country_fact_sheet read-only

  Use when the user asks about mobile networks, eSIM support, or Wi-Fi in a country. Returns a fact sheet from a built-in table, with general guidance where a country isn't listed.

  Parameters:

  • country (required) — string — Country, e.g. Japan

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• check_internet_freedom read-only

  Use when the user asks about internet restrictions in a country (VoIP blocks, firewalls). Returns a high-level snapshot from a built-in table — not legal advice.

  Parameters:

  • country (required) — string — Country, e.g. UAE

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• get_installation_guide read-only

  Use when the user needs step-by-step eSIM installation instructions. Covers iPhone and Android, via QR code or manual entry.

  Parameters:

  • os (required) — string — Phone OS
  • method (required) — string — Install method

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• troubleshoot_esim read-only

  Use when the user's eSIM isn't working. Diagnoses common problems: no service, no data, slow data, QR issues, activation failures, calls not working.

  Parameters:

  • symptom (required) — string — What is going wrong

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• lookup_apn_settings read-only

  Use when the user needs APN settings for a carrier after installing an eSIM. Looks up a built-in APN table; most travel eSIMs configure automatically.

  Parameters:

  • carrier (required) — string — Carrier or region, e.g. T-Mobile, UK, EU roaming

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• setup_dual_sim read-only

  Use when the user runs a home line plus a travel eSIM and needs the right configuration. Explains which line handles data, calls, and iMessage, and how to avoid roaming charges.

  Parameters:

  • primary_use — string — Main goal, e.g. 'keep my number reachable', 'cheapest data'

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• setup_data_saver read-only

  Use when the user wants to stretch a travel data plan. Gives OS-specific steps: low-data mode, background limits, offline maps and downloads.

  Parameters:

  • os (required) — string — Phone OS

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• format_international_number read-only

  Use when the user needs to dial a local number internationally. Formats a local phone number for calling between two countries, using a built-in dialing-code table.

  Parameters:

  • from_country (required) — string — Country you're calling from
  • to_country (required) — string — Country you're calling to
  • phone_number (required) — string — Local number as written locally, e.g. 06 12 34 56 78

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• calculate_data_budget read-only

  Use when the user asks how much of their plan data is left or how to ration it over a trip. Computes remaining data, daily budget and end-of-trip projection from the plan size and usage so far (which the user's phone reports exactly).

  Parameters:

  • plan_gb (required) — number — Plan size in GB, e.g. 5
  • used_gb (required) — number — Data already used in GB — the phone shows this in Settings > Cellular / Network & Internet
  • days_total — number — Trip or validity length in days
  • days_elapsed — number — Days already gone

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• list_available_plans read-only

  Use when the user asks what esimgomobile plans exist or what an eSIM costs. Lists the real, currently published plan catalog with USD prices (live-checked against esimgomobile.com).

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• recommend_plan read-only

  Use when the user says where they're going, for how long, and roughly how much they'll use data, and wants a concrete plan pick. Estimates the GB need, then picks the cheapest matching plan from the real published catalog with prices.

  Parameters:

  • countries (required) — array — Countries on the itinerary
  • days (required) — number — Trip length in days
  • usage_profile (required) — string — Usage profile

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• get_travel_data_checklist read-only

  Use when the user is preparing a trip and wants one pass over everything data-related for a country: networks, eSIM support, internet freedom, device check and install steps. Composes the built-in country, freedom, device and install references.

  Parameters:

  • country (required) — string — Destination country
  • os — string — Phone OS for install steps (default ios)
  • device_model — string — Phone model for a compatibility check

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• search_plans read-only

  Use when the user wants to browse or filter esimgomobile plans - by type (data packs, monthly, day passes), max price, minimum GB, coverage scope, or cheapest per-GB. Reads the live published catalog (snapshot fallback, labeled).

  Parameters:

  • kind — string — Plan type filter (default all)
  • sort — string — Sort order (default price)
  • scope — string — Coverage scope filter (default any)
  • min_gb — number — Only plans with at least this many GB (fair-use plans always match)
  • max_price_usd — number — Only plans at or under this USD price

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• get_plan_details read-only

  Use when the user asks about one specific esimgomobile plan by id - price, data allowance, validity, coverage scope, per-GB unit price, and where to buy.

  Parameters:

  • plan_id (required) — string — Plan id, e.g. data-pack-20gb (see search_plans for ids)

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• compare_plans read-only

  Use when the user is choosing between 2-4 esimgomobile plans. Side-by-side price, data, validity, scope and per-GB unit price, with a best-value pick. No competitor API offers this.

  Parameters:

  • plan_ids (required) — array — 2-4 plan ids to compare (see search_plans)

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• validate_order_draft read-only

  Use when the user is about to buy and wants everything checked first - the eSIM Go validate-style dry run. Verifies the plan id exists, quantity (1-50), device eSIM compatibility, and single-country scope against the itinerary, then gives a published-price estimate. Places no order and charges nothing.

  Parameters:

  • plan_id (required) — string — Plan id (see search_plans)
  • quantity — integer — Quantity 1-50 (default 1)
  • countries — array — Destination countries, for scope validation
  • device_model — string — Phone model for an eSIM compatibility check

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• plan_trip read-only

  Use when the user gives an itinerary (countries + days + usage) and wants the full answer in one call: estimated data need, best published plan pick with an alternative, and a per-country networks/eSIM/freedom brief. Composite over the live catalog and built-in country references.

  Parameters:

  • countries (required) — array — Countries on the itinerary, in order
  • days (required) — number — Trip length in days
  • usage_profile (required) — string — Usage profile

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• list_country_networks read-only

  Use when the user asks which mobile networks operate in a country, or for eSIM support / Wi-Fi / internet-freedom facts for one country - the eSIM Go /networks parity endpoint, from esimgomobile's built-in reference.

  Parameters:

  • country (required) — string — Country name, e.g. Japan

  Hints: read-only yes · destructive no · idempotent yes · open-world no

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