# Worldcitisim eSIM (npm · @worldcitisim/mcp-esim)

Travel eSIMs for 193 countries. Stripe + Bitcoin checkout. QR by email in 30s. No API key.

- Trust score: 68/100 (medium)
- Change this week: +24
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `@worldcitisim/mcp-esim`: 68/100 (this document), [markdown](https://verifymcp.io/servers/com-worldcitisim-mcp-esim/worldcitisim-mcp-esim.md), [page](https://verifymcp.io/servers/com-worldcitisim-mcp-esim/worldcitisim-mcp-esim)

## Channel facts

- Registry: `npm`
- Package: `@worldcitisim/mcp-esim`
- Version: `0.2.2`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, 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 2026-08-03.

- **Supply Chain Security**: 86/100
  - No malware found by supply-chain analysis.
  - Only part of the dependency tree could be resolved (94 of 98), so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (94 of 98), so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 15 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 70/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 679 tokens (~169/item across 4 items; 4 tools + 0 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**: 97/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 92% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add com-worldcitisim-mcp-esim -- npx -y @worldcitisim/mcp-esim
```

### Codex

```bash
codex mcp add com-worldcitisim-mcp-esim -- npx -y @worldcitisim/mcp-esim
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-worldcitisim-mcp-esim": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@worldcitisim/mcp-esim"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-worldcitisim-mcp-esim --command npx --arg -y --arg @worldcitisim/mcp-esim
```

### Hermes

```yaml
mcp_servers:
  com-worldcitisim-mcp-esim:
    command: "npx"
    args: ["-y", "@worldcitisim/mcp-esim"]
```

### Other

```json
{
  "mcpServers": {
    "com-worldcitisim-mcp-esim": {
      "command": "npx",
      "args": [
        "-y",
        "@worldcitisim/mcp-esim"
      ]
    }
  }
}
```

## 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.

### 2026-08-03 (score 68, +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.

### 2026-08-02 (score 67, +48)

- [security regression] Provenance: unverified → fail
- [security improvement] Install scripts: unverified → pass
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Malware scan: unverified → pass
- [functional improvement] Schema quality: unverified → excellent
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] MCP protocol: unverified → pass
- [functional improvement] Stability: unverified → 0.23
- [functional improvement] License: unverified → pass
- [functional] Licence: MIT

### 2026-08-01 (score 19, −7)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-31 (score 26, −18)

- [security regression] Malware scan: pass → unverified

### 2026-07-27 (score 44)

First indexed and scored.

## MCP tools (4)

### `esim_search_plans` (~240 tokens)

Search the Worldcitisim eSIM catalog. Returns plans matching the given filters (country ISO code, region, desired days, desired GB). Plans have variations — each variation is one specific (days × GB × price) combo. The user picks one variation_id to buy.

Input parameters:

- `country` (string): Two-letter ISO 3166-1 alpha-2 country code (e.g. 'JP', 'ES', 'US') OR a plan slug ('spain', 'japan', 'europe', 'global'). Matched case-insensitively against plan slugs and display names.
- `limit` (number): Max plans to return (default 5, max 20).
- `max_days` (number): Maximum plan duration in days.
- `min_days` (number): Minimum plan duration in days.
- `min_gb` (number): Minimum data allowance in GB. Use -1 for 'unlimited'.
- `region` (string): Region slug: 'europe' | 'mena' | 'caribbean' | 'balkans' | 'latam' | 'asia' | 'global'.

### `esim_get_plan` (~53 tokens)

Fetch the full detail of one plan by slug, including all variations (every days × GB permutation with its price).

Input parameters:

- `slug` (string, required): Plan slug, e.g. 'spain' or 'europe'.

### `esim_create_order` (~309 tokens)

Create a pending order. With `payment_method: "stripe"` (default) you get back a `payment_link_url` — present it to the user to tap and pay on Stripe's hosted page. With `payment_method: "btc"` you get back a `btc` block (on-chain address + amount + QR data URI + expiry) — present the address and amount to the user to pay from any Bitcoin wallet; no redirect. If the user hasn't said how they want to pay, ask: card or Bitcoin. The eSIM QR code arrives at `email` within ~30 seconds of payment clearing. Use `esim_check_order` to poll status.

Input parameters:

- `agent_source` (string): Optional: identifier for the calling agent (e.g. 'claude-code', 'cursor'). Used for our analytics; not seen by the buyer.
- `email` (string, required): Buyer's email address. The eSIM QR code will be delivered here.
- `payment_method` (string): How the buyer pays. 'stripe' (default) → hosted card checkout, returns a payment_link_url. 'btc' → on-chain Bitcoin, returns a btc block (address + sats + QR) to show the user directly. BTC may be de…
- `variation_id` (number, required): The specific variation ID to buy (from esim_search_plans or esim_get_plan).

### `esim_check_order` (~77 tokens)

Poll an order's status. Returns `status: pending` while waiting for payment, `status: processing` or `completed` once paid, with `activation` data (ICCID, QR URL, install instructions).

Input parameters:

- `order_id` (number, required)
- `order_token` (string, required): The opaque token returned by esim_create_order.

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/com-worldcitisim-mcp-esim/worldcitisim-mcp-esim#diagnostics

## Score history

- 2026-08-03: 68
- 2026-08-02: 67
- 2026-08-01: 19
- 2026-07-31: 26
- 2026-07-29: 44
- 2026-07-28: 44
- 2026-07-27: 44

## Links

- npm package: https://www.npmjs.com/package/@worldcitisim/mcp-esim
- Socket report: https://socket.dev/npm/package/@worldcitisim/mcp-esim
- Repository: https://github.com/isabellaliebgott/mcp-esim
- Website: https://worldcitisim.com/developers
- Changelog RSS feed: https://verifymcp.io/servers/com-worldcitisim-mcp-esim/worldcitisim-mcp-esim/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-worldcitisim-mcp-esim/worldcitisim-mcp-esim/changelog.json
- HTML version of this page: https://verifymcp.io/servers/com-worldcitisim-mcp-esim/worldcitisim-mcp-esim