# worldwide eSIM — one eSIM for the whole world (remote · worldwideesim.com)

One travel eSIM for 98 countries: live quotes by continent and GB, country check and a buy link.

- Trust score: 77/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `worldwideesim.com`: 77/100 (this document), [markdown](https://verifymcp.io/servers/com-worldwideesim-esim-catalog/wp-json-worldwideesim-mcp.md), [page](https://verifymcp.io/servers/com-worldwideesim-esim-catalog/wp-json-worldwideesim-mcp)

## Channel facts

- Endpoint: `https://worldwideesim.com/wp-json/worldwideesim/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `3.0.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-05.

- **Endpoint Security**: 83/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Nothing on it is marked destructive, but we can't show that an anonymous caller can only read: full credit needs the server to list at least one tool and every tool to be verifiably read-only. We use a best-effort check of tool names and descriptions to tell read-only tools from tools that change things, so some genuinely read-only tools may not get full credit. Names that start with a read verb (get, list, read, search and similar) and accurate readOnlyHint annotations help. Meet that to earn full credit, or require authorisation.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC is configured correctly; the domain's records validate against the full chain to the root.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 74/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 3170 tokens (~317/item across 10 items; 7 tools + 3 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
  - Structured output schemas are declared (29% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 7 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 9 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

## Install

### How do I install the worldwide eSIM — one eSIM for the whole world MCP server?

worldwide eSIM — one eSIM for the whole world is a hosted endpoint at https://worldwideesim.com/wp-json/worldwideesim/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http com-worldwideesim-esim-catalog 'https://worldwideesim.com/wp-json/worldwideesim/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "com-worldwideesim-esim-catalog": {
      "url": "https://worldwideesim.com/wp-json/worldwideesim/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-worldwideesim-esim-catalog": {
      "type": "http",
      "url": "https://worldwideesim.com/wp-json/worldwideesim/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.com-worldwideesim-esim-catalog]
url = "https://worldwideesim.com/wp-json/worldwideesim/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-worldwideesim-esim-catalog": {
      "type": "remote",
      "url": "https://worldwideesim.com/wp-json/worldwideesim/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-worldwideesim-esim-catalog --url 'https://worldwideesim.com/wp-json/worldwideesim/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-worldwideesim-esim-catalog:
    url: "https://worldwideesim.com/wp-json/worldwideesim/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "com-worldwideesim-esim-catalog": {
      "Transport": "http",
      "Url": "https://worldwideesim.com/wp-json/worldwideesim/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-worldwideesim-esim-catalog -t streamable-http -u 'https://worldwideesim.com/wp-json/worldwideesim/mcp'
```

### Other

```json
{
  "mcpServers": {
    "com-worldwideesim-esim-catalog": {
      "type": "http",
      "url": "https://worldwideesim.com/wp-json/worldwideesim/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-11-05 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-04 (score 76, 0)

- [security] The server rewrote its instructions, which are the text every model session reads

### 2026-11-03 (score 76, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-01 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-31 (score 74, 0)

- [security] The server rewrote its instructions, which are the text every model session reads
- [security] Tool “get_shop_facts” rewrote its description, which is the text the model reads
- [security] Tool “quote_esim” rewrote its description, which is the text the model reads

### 2026-10-30 (score 74, +1)

- [security] The server rewrote its instructions, which are the text every model session reads
- [security] Tool “start_checkout” rewrote its description, which is the text the model reads

### 2026-10-29 (score 73, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-28 (score 73)

First indexed and scored.

## MCP tools (7)

### `get_shop_facts` (~170 tokens)

Shop facts

What worldwide eSIM is and how it works, in the shop’s own words: one mobile-data eSIM for the whole world or chosen continents, one data pool, validity (until the data is used up, up to 90 days from the first connection), recharge, delivery, installation, devices, payment, refunds, My eSIM, e-mails, support. Use for any question that is not a price or a country.

Input parameters:

- `bucket` (string): Optional language-region bucket the customer shops in, e.g. en-gb, de-de (sets currency and link locale). Defaults from language.
- `language` (string): ISO language of the conversation, e.g. en, de, ja. Localizes country and continent names and sets the language/currency of links and prices.

### `list_coverage` (~229 tokens)

List coverage

The five continents with their number of countries and the starting price of each (the smallest data size for that continent alone) plus the whole world. Pass continent to list its countries (continent "world" lists every country); include_networks adds the operator names and a 5G flag per country. Use to show where the eSIM works.

Input parameters:

- `bucket` (string): Optional language-region bucket the customer shops in, e.g. en-gb, de-de (sets currency and link locale). Defaults from language.
- `continent` (string): Optional: list the countries of this continent (eu, as, am, af, oc) or of the whole world ("world").
- `currency` (string): Optional ISO 4217 override for prices.
- `include_networks` (boolean): Optional: with continent, add the mobile networks (operator name + 5G flag) of each country.
- `language` (string): ISO language of the conversation, e.g. en, de, ja. Localizes country and continent names and sets the language/currency of links and prices.

### `check_country` (~259 tokens)

Is a country included?

Is one country included? Pass its name in any language or its ISO-2 code (map a city to its country first). Returns included true/false, the continent, the mobile networks (operator names + 5G flag) and the cheapest coverage choice that includes it (its continent alone) with the server price and buy_url, plus the whole world at the same size for comparison.

Input parameters:

- `bucket` (string): Optional language-region bucket the customer shops in, e.g. en-gb, de-de (sets currency and link locale). Defaults from language.
- `country` (string, required): Country in ANY language or its ISO code, e.g. "Japan", "Japon", "jp".
- `currency` (string): Optional ISO 4217 override for prices.
- `gb` (integer): The data pool in GB, ONE pool for every included country: 3, 5, 10 (more: 20, 30, 50, 100). Omit = 3 GB. Not sure? Call recommend_config.
- `language` (string): ISO language of the conversation, e.g. en, de, ja. Localizes country and continent names and sets the language/currency of links and prices.

### `quote_esim` (~332 tokens)

Quote the eSIM

Use while the customer is still deciding — "how much is …?": the exact server price of ONE worldwide eSIM for the chosen continents (default: the whole world) and data size — the amount the customer would pay — with the number of countries, the validity (until the data is used up, up to 90 days), hotspot, the recharge options and prices, and a buy_url for reference. Quote the price as returned; never compute or scale it. When the customer says they want to buy, call start_checkout.

Input parameters:

- `bucket` (string): Optional language-region bucket the customer shops in, e.g. en-gb, de-de (sets currency and link locale). Defaults from language.
- `continents` (array): Continents to cover: eu (Europe), as (Asia & Middle East), am (Americas), af (Africa), oc (Oceania). Omit = the whole world (all five). Fewer continents can lower the price. A country is not a contin…
- `currency` (string): Optional ISO 4217 override for prices.
- `gb` (integer): The data pool in GB, ONE pool for every included country: 3, 5, 10 (more: 20, 30, 50, 100). Omit = 3 GB. Not sure? Call recommend_config.
- `language` (string): ISO language of the conversation, e.g. en, de, ja. Localizes country and continent names and sets the language/currency of links and prices.

Output parameters:

- `buy_url` (string): The shop page preset to exactly this choice. Use verbatim.
- `continents_unmatched` (array): Requested values that are not a continent (left out of the quote).
- `countries` (integer): Number of countries included.
- `coverage` (object): The chosen continents.
- `coverage_url` (string): Every included country and network by continent.
- `currency` (string)
- `data_gb` (integer): ONE data pool for every included country (not per day, not per country).
- `data_only` (boolean): true: no phone number, no SMS.
- `hotspot` (boolean)
- `note` (string): Present when something about the request had to be adjusted — read it to the customer.
- `price` (number): FULL price of exactly this choice in currency — the amount paid. Not per GB, per day or per country.
- `price_basis` (string)
- `price_is_final` (boolean)
- `topup` (object): How the customer recharges later (+1, +3 or +10 GB, renews the validity), with the server recharge prices for this coverage when available.
- `valid_days_max` (integer)
- `validity` (string): "until the data is used up, up to 90 days" — say it this way.
- `validity_starts` (string): The days start at the first connection to a network, not at purchase or installation.

### `price_grid` (~286 tokens)

Price grid

Every data size (or the sizes asked for) for one coverage choice in one call, each with the server price and its own buy_url; with compare_continents also the whole world against each single continent — to show what a smaller coverage saves. Same server prices as quote_esim.

Input parameters:

- `bucket` (string): Optional language-region bucket the customer shops in, e.g. en-gb, de-de (sets currency and link locale). Defaults from language.
- `compare_continents` (boolean): Optional: also price the whole world and each continent alone.
- `continents` (array): Continents to cover: eu (Europe), as (Asia & Middle East), am (Americas), af (Africa), oc (Oceania). Omit = the whole world (all five). Fewer continents can lower the price. A country is not a contin…
- `currency` (string): Optional ISO 4217 override for prices.
- `gb` (array): Optional: the sizes to price. Omit = every size (3, 5, 10, 20, 30, 50, 100).
- `language` (string): ISO language of the conversation, e.g. en, de, ja. Localizes country and continent names and sets the language/currency of links and prices.

### `recommend_config` (~396 tokens)

Recommend for a trip

Use when the customer names the countries of a trip instead of continents and a size: returns the smallest set of continents that covers every named country (countries that are not included come back in not_covered), a suggested data size from the days and usage (light ≈ 0.5 GB/day, normal ≈ 1.5, heavy ≈ 4; rounded up to the next size) and server quotes for that size and one size down and up, each with its buy_url, plus the whole world at the suggested size. Same prices as quote_esim.

Input parameters:

- `bucket` (string): Optional language-region bucket the customer shops in, e.g. en-gb, de-de (sets currency and link locale). Defaults from language.
- `budget` (number): Optional budget in the quoted currency; options above it are marked.
- `countries` (array, required): The countries of the trip, names in any language or ISO-2 codes, e.g. ["Japan", "Thailand", "Australia"]. Map cities to their countries first.
- `currency` (string): Optional ISO 4217 override for prices.
- `days` (integer): Optional: days the customer will use mobile data. Without days the size follows the usage alone (light 3 / normal 5 / heavy 10 GB).
- `gb_per_day` (number): Optional: the customer's own estimate in GB per day (wins over usage).
- `language` (string): ISO language of the conversation, e.g. en, de, ja. Localizes country and continent names and sets the language/currency of links and prices.
- `usage` (string): light ≈ 0.5 GB/day (messaging, maps, mail), normal ≈ 1.5 GB/day (default; social media, music, some video), heavy ≈ 4 GB/day (video streaming, video calls, hotspot for a laptop).

### `start_checkout` (~372 tokens)

Start secure checkout

Use only once the customer has decided to buy ("I'll take it", "how do I buy?"): the checkout handoff for one choice (same input as quote_esim). Returns the buy_url to give the customer, the final price and a ready-to-send checkout block (next_step, payment_methods, delivery) — the shop page opens preset to exactly this coverage and size; the customer presses the buy button (buy_button in the result, e.g. "Get your eSIM" in English) and pays securely. No account needed; the eSIM is delivered on screen and by e-mail right after payment. No in-chat order tracking, no discount codes. For prices while the customer is still comparing, use quote_esim.

Input parameters:

- `bucket` (string): Optional language-region bucket the customer shops in, e.g. en-gb, de-de (sets currency and link locale). Defaults from language.
- `continents` (array): Continents to cover: eu (Europe), as (Asia & Middle East), am (Americas), af (Africa), oc (Oceania). Omit = the whole world (all five). Fewer continents can lower the price. A country is not a contin…
- `currency` (string): Optional ISO 4217 override for prices.
- `gb` (integer): The data pool in GB, ONE pool for every included country: 3, 5, 10 (more: 20, 30, 50, 100). Omit = 3 GB. Not sure? Call recommend_config.
- `language` (string): ISO language of the conversation, e.g. en, de, ja. Localizes country and continent names and sets the language/currency of links and prices.

Output parameters:

- `buy_button` (string): The label of the buy button on the page, in the language of the customer: name it exactly so.
- `buy_url` (string): The shop page preset to exactly this choice. Use verbatim.
- `continents_unmatched` (array): Requested values that are not a continent (left out of the quote).
- `countries` (integer): Number of countries included.
- `coverage` (object): The chosen continents.
- `coverage_url` (string): Every included country and network by continent.
- `currency` (string)
- `data_gb` (integer): ONE data pool for every included country (not per day, not per country).
- `data_only` (boolean): true: no phone number, no SMS.
- `delivery` (string): How and when the eSIM arrives.
- `hotspot` (boolean)
- `message` (string): A ready-to-send line for the customer.
- `next_step` (string): What the customer does now: open buy_url, press "Get your eSIM", pay.
- `note` (string): Present when something about the request had to be adjusted — read it to the customer.
- `payment_methods` (array)
- `price` (number): FULL price of exactly this choice in currency — the amount paid. Not per GB, per day or per country.
- `price_basis` (string)
- `price_is_final` (boolean)
- `topup` (object): How the customer recharges later (+1, +3 or +10 GB, renews the validity), with the server recharge prices for this coverage when available.
- `valid_days_max` (integer)
- `validity` (string): "until the data is used up, up to 90 days" — say it this way.
- `validity_starts` (string): The days start at the first connection to a network, not at purchase or installation.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-worldwideesim-esim-catalog/wp-json-worldwideesim-mcp#diagnostics

## Score history

- 2026-11-05: 77
- 2026-11-04: 76
- 2026-11-03: 76
- 2026-11-02: 75
- 2026-11-01: 75
- 2026-10-31: 74
- 2026-10-30: 74
- 2026-10-29: 73
- 2026-10-28: 73

## Common questions

### What is the worldwide eSIM — one eSIM for the whole world MCP server?

worldwide eSIM — one eSIM for the whole world is an MCP server listed in the public MCP registry as com.worldwideesim/esim-catalog. One travel eSIM for 98 countries: live quotes by continent and GB, country check and a buy link. This page covers its hosted endpoint (https://worldwideesim.com/wp-json/worldwideesim/mcp).

### Is the worldwide eSIM — one eSIM for the whole world MCP server safe to use?

worldwide eSIM — one eSIM for the whole world scores 77 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the worldwide eSIM — one eSIM for the whole world MCP server expose?

worldwide eSIM — one eSIM for the whole world exposes 7 tools: get_shop_facts, list_coverage, check_country, quote_esim, price_grid, and 2 more. Their descriptions and schemas cost roughly 2,044 tokens of context every time the server is loaded.

### Does the worldwide eSIM — one eSIM for the whole world MCP server require authentication?

No. We connected to worldwide eSIM — one eSIM for the whole world without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the worldwide eSIM — one eSIM for the whole world MCP server still maintained?

worldwide eSIM — one eSIM for the whole world is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What did VerifyMCP test on the worldwide eSIM — one eSIM for the whole world MCP server?

VerifyMCP ran 13 checks on worldwide eSIM — one eSIM for the whole world, covering TLS certificate, Authorization, HTTPS, HSTS header and 9 more. Supply Chain Security and Provenance & Transparency do not apply to a hosted endpoint, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.

## Links

- Remote endpoint: https://worldwideesim.com/wp-json/worldwideesim/mcp
- Website: https://worldwideesim.com/
- Changelog RSS feed: https://verifymcp.io/servers/com-worldwideesim-esim-catalog/wp-json-worldwideesim-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-worldwideesim-esim-catalog/wp-json-worldwideesim-mcp/changelog.json
- Trust report (JSON): https://verifymcp.io/servers/com-worldwideesim-esim-catalog/wp-json-worldwideesim-mcp.json
- HTML version of this page: https://verifymcp.io/servers/com-worldwideesim-esim-catalog/wp-json-worldwideesim-mcp