# AeroCell: eSIM Travel Data (remote · aerocell.app)

Search live AeroCell travel eSIM plans, prices and coverage for countries and multi-country trips.

- Trust score: 74/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-23

## Components

- remote · `aerocell.app`: 74/100 (this document), [markdown](https://verifymcp.io/servers/mezsondra-aerocell/aerocell.md), [page](https://verifymcp.io/servers/mezsondra-aerocell/aerocell)

## Channel facts

- Endpoint: `https://aerocell.app/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.3.3`

## 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 2026-10-23.

- **Endpoint Security**: 74/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - 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**: 67/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 535 tokens (~178/item across 3 items; 3 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 33/100
  - Stability observed for 10 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 (100% 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 3 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the AeroCell: eSIM Travel Data MCP server?

AeroCell: eSIM Travel Data is a hosted endpoint at https://aerocell.app/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 mezsondra-aerocell 'https://aerocell.app/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "mezsondra-aerocell": {
      "url": "https://aerocell.app/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "mezsondra-aerocell": {
      "type": "http",
      "url": "https://aerocell.app/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.mezsondra-aerocell]
url = "https://aerocell.app/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "mezsondra-aerocell": {
      "type": "remote",
      "url": "https://aerocell.app/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add mezsondra-aerocell --url 'https://aerocell.app/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  mezsondra-aerocell:
    url: "https://aerocell.app/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "mezsondra-aerocell": {
      "Transport": "http",
      "Url": "https://aerocell.app/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add mezsondra-aerocell -t streamable-http -u 'https://aerocell.app/mcp'
```

### Other

```json
{
  "mcpServers": {
    "mezsondra-aerocell": {
      "type": "http",
      "url": "https://aerocell.app/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.

### 2026-10-22 (score 74, +1)

No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-20 (score 73, +1)

No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-18 (score 72, +1)

No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-17 (score 71, 0)

- [security] Tool “find_regional_esim_plans” rewrote its description, which is the text the model reads
- [security] Tool “get_esim_plan” rewrote its description, which is the text the model reads

### 2026-10-15 (score 71, +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.

### 2026-10-14 (score 70, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-13 (score 70)

First indexed and scored.

## MCP tools (3)

### `find_esim_plans` (~190 tokens)

Find AeroCell eSIM plans

Find current AeroCell travel eSIM plans for one country. Use a two-letter ISO country code. Provide both travel dates if known; plans covering the whole trip are returned by default. Optional data and USD price filters narrow results.

Input parameters:

- `country_code` (string, required): Two-letter ISO country code, such as JP; XK is also supported by the catalog.
- `end_date` (string): Trip end, YYYY-MM-DD inclusive. Provide with start_date.
- `limit` (integer): Maximum results, 1–20; default 8.
- `max_price_usd` (number): Maximum price in USD.
- `min_data_gb` (number): Minimum data allowance in GB.
- `require_trip_coverage` (boolean): Defaults to true when dates are supplied; false includes shorter plans.
- `start_date` (string): Trip start, YYYY-MM-DD. Provide with end_date.

Output parameters:

- `browse_url` (string)
- `country` (object)
- `currency` (string)
- `note` (string)
- `plans` (array)
- `total_matching` (number)
- `trip_days` (number|null)
- `updated_at` (string)

### `get_esim_plan` (~80 tokens)

Get an AeroCell eSIM plan

Get current details and an AeroCell checkout link for a plan ID from a single-country search. Requires the same country code.

Input parameters:

- `country_code` (string, required): Two-letter ISO country code, such as JP; XK is also supported by the catalog.
- `plan_id` (string, required): Plan ID from a country search; requires the same country_code.

Output parameters:

- `country` (object)
- `currency` (string)
- `note` (string)
- `plan` (object)
- `updated_at` (string)

### `find_regional_esim_plans` (~202 tokens)

Find AeroCell regional eSIM plans

Find live multi-country AeroCell bundles. Supply every itinerary country as a two-letter ISO code; only bundles listing all those countries are returned. Optionally select a named region. A region-only search returns bundles with their exact country coverage.

Input parameters:

- `country_codes` (array): Every itinerary country, up to 30 distinct codes.
- `end_date` (string): Trip end, YYYY-MM-DD inclusive. Provide with start_date.
- `limit` (integer): Maximum results, 1–20; default 8.
- `max_price_usd` (number): Maximum price in USD.
- `min_data_gb` (number): Minimum data allowance in GB.
- `region` (string): Optional named catalog region; check returned country_codes.
- `require_trip_coverage` (boolean): Defaults to true when dates are supplied; false includes shorter plans.
- `start_date` (string): Trip start, YYYY-MM-DD. Provide with end_date.

Output parameters:

- `browse_url` (string)
- `currency` (string)
- `note` (string)
- `plans` (array)
- `region` (string|null)
- `requested_country_codes` (array)
- `total_matching` (number)
- `trip_days` (number|null)
- `updated_at` (string)

## Diagnostics

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

## Score history

- 2026-10-23: 74
- 2026-10-22: 74
- 2026-10-21: 73
- 2026-10-20: 73
- 2026-10-19: 72
- 2026-10-18: 72
- 2026-10-17: 71
- 2026-10-16: 71
- 2026-10-15: 71
- 2026-10-14: 70
- 2026-10-13: 70

## Common questions

### What is the AeroCell: eSIM Travel Data MCP server?

AeroCell: eSIM Travel Data is an MCP server listed in the public MCP registry as io.github.Mezsondra/aerocell. Search live AeroCell travel eSIM plans, prices and coverage for countries and multi-country trips. This page covers its hosted endpoint (https://aerocell.app/mcp).

### Is the AeroCell: eSIM Travel Data MCP server safe to use?

AeroCell: eSIM Travel Data scores 74 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 AeroCell: eSIM Travel Data MCP server expose?

AeroCell: eSIM Travel Data exposes 3 tools: find_esim_plans, get_esim_plan, find_regional_esim_plans. Their descriptions and schemas cost roughly 472 tokens of context every time the server is loaded.

### Does the AeroCell: eSIM Travel Data MCP server require authentication?

No. We connected to AeroCell: eSIM Travel Data without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the AeroCell: eSIM Travel Data MCP server still maintained?

AeroCell: eSIM Travel Data is still listed as active in the MCP registry. We last reached this channel on 23 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://aerocell.app/mcp
- Website: https://aerocell.app/developers
- Changelog RSS feed: https://verifymcp.io/servers/mezsondra-aerocell/aerocell.xml
- Changelog JSON feed: https://verifymcp.io/servers/mezsondra-aerocell/aerocell.json
- HTML version of this page: https://verifymcp.io/servers/mezsondra-aerocell/aerocell