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Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Payments & trading

Inbox eSIM

Travel eSIMs for 200+ countries: compare 100+ eSIM brands' prices and buy a plan (MPP, Stripe).

Checks passed
13 / 22

1 failed · 8 not measured

Median response
598 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
6

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
400
Publisher identityCan the publisher be traced to its source?
312

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 598 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name inbox-esim.

  • Pass
    Lists tools

    tools/list returned 6 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 598 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 598 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Pass
    Parameters documented

    14 of 14 parameters have a description (100%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Fail
    Source repo linked

    No repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-11-08T17:29:17.052339Z, within 180 days.

  • Not measured
    Open-source licence

    No GitHub repository to ask about a licence.

Start using Inbox eSIM

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http inbox-esim https://inboxesim.com/mcp

Capabilities

Tools 6

buy_esim

Starts the purchase of one eSIM plan for the customer and returns a payment link. Pay it with the Machine Payments Protocol (HTTP 402, Stripe shared payment token) to complete the order. Before calling, confirm the plan, the price and the email with the customer, and get their agreement to the terms: By buying, the customer asks for the eSIM to be sent at once and accepts the terms (https://inboxesim.com/terms): the 14-day right to withdraw ends once the eSIM is installed. An eSIM that was never installed or used can be refunded within 30 days from its order page, less the payment fee (no card fee within 14 days in the EU and UK).

Discovered
check_esim_device

Says whether a phone model is likely to take an eSIM (likely, unlikely or check), from the model name, with how to be sure on the phone itself. Call it before buy_esim when the customer is unsure.

Discovered
compare_esim_prices

Compares travel eSIM prices for one country across every brand Inbox eSIM reads (about 50), cheapest first, for a size and a trip length. Read only. Each brand's cheapest plan that covers the request, with its price, the date that price was read, whether it needs an app or account, and its page. Inbox eSIM runs the comparison and also sells eSIMs: its row is marked is_ours and keeps its real position, because the order is by price only.

Discovered
find_esim_plans

Lists Inbox eSIM data plans for a destination (country, city, region such as Europe, or 'global'), cheapest first, with plan_id, data in GB, validity in days and price in USD. Data only, no phone number; works on unlocked eSIM phones.

Discovered
get_order_status

Where an Inbox eSIM order is (awaiting_payment, preparing, ready_to_install, installed, in_use, ended, refunded, cancelled, with_support), with data used, the end date and the order page. Needs the order number and the email it was bought with.

Discovered
make_esim_cart

For a trip to several countries (or several phones): turns 2 to 6 plan_ids from find_esim_plans into one cart link. The customer opens it, checks the eSIMs and pays once on Stripe; each eSIM comes in its own QR email and can be refunded on its own if never installed. 3 or more eSIMs in one cart are 5% off. Nothing is bought until the customer pays on the page.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected598 ms6