# Siima eSIM (remote · api.siima.online)

Search travel eSIM plans for 150+ countries and buy via Stripe link; eSIM QR delivered by email.

- Trust score: 69/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `api.siima.online`: 69/100 (this document), [markdown](https://verifymcp.io/servers/online-siima-esim/api.md), [page](https://verifymcp.io/servers/online-siima-esim/api)

## Channel facts

- Endpoint: `https://api.siima.online/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## 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 2026-08-03.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 4 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 74/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 626 tokens (~156/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**: 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.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add --transport http online-siima-esim https://api.siima.online/mcp
```

### Codex

```toml
[mcp_servers.online-siima-esim]
url = "https://api.siima.online/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "online-siima-esim": {
      "type": "remote",
      "url": "https://api.siima.online/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add online-siima-esim --url https://api.siima.online/mcp --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  online-siima-esim:
    url: "https://api.siima.online/mcp"
```

### Other

```json
{
  "mcpServers": {
    "online-siima-esim": {
      "type": "http",
      "url": "https://api.siima.online/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.

### 2026-08-03 (score 69, +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.

### 2026-07-31 (score 68, +1)

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

### 2026-07-30 (score 67, +1)

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

### 2026-07-28 (score 66, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-27 (score 65, +1)

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

### 2026-07-26 (score 64)

First indexed and scored.

## MCP tools (4)

### `search_esim_plans` (~257 tokens)

Search Siima travel eSIM plans

Search prepaid travel eSIM data plans by destination country (ISO 3166-1 alpha-2, e.g. "JP"), region (e.g. "Europe"), minimum data in GB, maximum total price, or plan duration in days. Returned price is the final amount the customer pays at checkout (all fees included), in the requested currency. To buy: call create_checkout_link with the plan id, give the returned URL to the user. After payment the eSIM (QR code + activation link + manual codes) is emailed to them automatically — no account needed.

Input parameters:

- `country` (string): Destination country as ISO 3166-1 alpha-2 code, e.g. "JP" for Japan
- `currency` (string): Currency for prices: "usd", "eur", or "gbp". Defaults to "usd".
- `duration_days` (integer): Exact plan duration in days
- `limit` (integer): Max results to return
- `max_price` (number): Maximum total price in the requested currency (checkout total)
- `min_data_gb` (number): Minimum data allowance in GB
- `region` (string): Region name, e.g. "Europe", "Asia"

### `get_esim_plan` (~120 tokens)

Get eSIM plan details

Fetch full details of a single Siima eSIM plan by its id (from search_esim_plans). To buy: call create_checkout_link with the plan id, give the returned URL to the user. After payment the eSIM (QR code + activation link + manual codes) is emailed to them automatically — no account needed.

Input parameters:

- `currency` (string): Currency for prices: "usd", "eur", or "gbp". Defaults to "usd".
- `plan_id` (string, required): Plan id returned by search_esim_plans

### `create_checkout_link` (~179 tokens)

Create eSIM checkout link

Create a secure payment link on siima.io for a Siima eSIM plan (Stripe-powered, but hosted on our own site — never a redirect to checkout.stripe.com). Give the returned url to the user to complete payment. Optionally pass the buyer's email so the link goes straight to the payment page; otherwise the page collects it first. After payment, the eSIM QR code, one-tap activation link, and manual installation codes are emailed to the buyer within a minute. No account or signup is required.

Input parameters:

- `currency` (string): Currency for prices: "usd", "eur", or "gbp". Defaults to "usd".
- `email` (string): Buyer email to pre-fill at checkout (eSIM is delivered to this address)
- `plan_id` (string, required): Plan id from search_esim_plans

### `list_destinations` (~70 tokens)

List covered destinations

List all countries Siima has eSIM plans for, with plan counts and the cheapest total price per country. Country codes are ISO 3166-1 alpha-2.

Input parameters:

- `currency` (string): Currency for prices: "usd", "eur", or "gbp". Defaults to "usd".

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/online-siima-esim/api#diagnostics

## Score history

- 2026-08-03: 69
- 2026-08-02: 68
- 2026-08-01: 68
- 2026-07-31: 68
- 2026-07-30: 67
- 2026-07-29: 66
- 2026-07-28: 66
- 2026-07-27: 65
- 2026-07-26: 64

## Links

- Remote endpoint: https://api.siima.online/mcp
- Website: https://siima.online/ai
- Changelog RSS feed: https://verifymcp.io/servers/online-siima-esim/api/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/online-siima-esim/api/changelog.json
- HTML version of this page: https://verifymcp.io/servers/online-siima-esim/api