# RAR.now MCP Server (remote · rar.now)

Convert RAR archives to ZIP, 7Z and TAR through MCP-compatible AI clients.

- Trust score: 70/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `rar.now`: 70/100 (this document), [markdown](https://verifymcp.io/servers/chrisyau83-rar-now/rar.md), [page](https://verifymcp.io/servers/chrisyau83-rar-now/rar)

## Channel facts

- Endpoint: `https://rar.now/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 2026-11-05.

- **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**: 61/100
  - AI-judged instruction clarity (fair).
  - Tool/resource definitions use about 226 tokens (~56/item across 4 items; 4 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 30/100
  - Stability observed for 9 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 71/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% 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 4 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 RAR.now MCP Server server?

RAR.now MCP Server is a hosted endpoint at https://rar.now/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 chrisyau83-rar-now 'https://rar.now/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "chrisyau83-rar-now": {
      "url": "https://rar.now/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "chrisyau83-rar-now": {
      "type": "http",
      "url": "https://rar.now/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.chrisyau83-rar-now]
url = "https://rar.now/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "chrisyau83-rar-now": {
      "type": "remote",
      "url": "https://rar.now/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add chrisyau83-rar-now --url 'https://rar.now/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  chrisyau83-rar-now:
    url: "https://rar.now/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "chrisyau83-rar-now": {
      "Transport": "http",
      "Url": "https://rar.now/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add chrisyau83-rar-now -t streamable-http -u 'https://rar.now/mcp'
```

### Other

```json
{
  "mcpServers": {
    "chrisyau83-rar-now": {
      "type": "http",
      "url": "https://rar.now/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 70, +28)

- [security regression] HSTS header: unverified → fail
- [security improvement] Authorization: unverified → partial
- [security improvement] Injection markers: unverified → pass
- [security improvement] Transport: fail → pass
- [functional improvement] Endpoint reachability: unreachable → reachable
- [functional improvement] Tool coverage: unverified → 100
- [functional improvement] Stability: unverified → 0.30
- [functional improvement] MCP protocol: unverified → pass

### 2026-11-04 (score 42, −10)

The score moved with no change recorded against any check. We would rather say so than guess.

### 2026-11-02 (score 52, 0)

- [security regression] Endpoint reachability: reachable → unreachable
- [security regression] Tool safety: pass → unverified
- [security regression] Stability: 0.17 → unverified
- [functional regression] Capabilities: pass → unverified
- [functional regression] Tool coverage: 100 → unverified

### 2026-11-01 (score 52, +12)

- [security improvement] Injection markers: unverified → pass
- [functional improvement] Endpoint reachability: unreachable → reachable
- [functional improvement] Tool coverage: unverified → 100
- [functional improvement] Stability: unverified → 0.17
- [functional improvement] MCP protocol: unverified → pass
- [functional] This server's schema is too large to store in full, so we cannot compare its tools day to day

### 2026-10-31 (score 40, −13)

The score moved with no change recorded against any check. We would rather say so than guess.

### 2026-10-30 (score 53, −13)

The score moved with no change recorded against any check. We would rather say so than guess.

### 2026-10-28 (score 66, 0)

- [security regression] Endpoint reachability: reachable → unreachable
- [security regression] HSTS header: fail → unverified
- [security regression] Authorization: partial → unverified
- [security regression] Tool safety: pass → unverified
- [security regression] Transport: pass → fail
- [functional regression] Capabilities: pass → unverified
- [functional regression] Tool coverage: 100 → unverified
- [functional] First check of Schema quality: unverified

### 2026-10-27 (score 66)

First indexed and scored.

## MCP tools (4)

### `list_converters` (~56 tokens)

List RAR.now converters

Search the live RAR.now converter catalog and return valid converter slugs such as rar-to-zip, rar-to-7z, and rar-to-tar.

Input parameters:

- `limit` (integer)
- `search` (string)

### `convert_image_url` (~109 tokens)

Convert a RAR archive from a URL

Download a publicly accessible RAR archive URL, submit it to RAR.now using a converter slug, and optionally wait for the result. Private-network URLs and embedded URL credentials are rejected.

Input parameters:

- `background_color`
- `converter` (string, required)
- `height`
- `quality` (integer)
- `source_url` (string, required)
- `strip_metadata` (boolean)
- `timeout_seconds` (integer)
- `wait_for_completion` (boolean)
- `width`

### `get_conversion_status` (~36 tokens)

Get conversion status

Check a RAR.now conversion job. A completed job includes an absolute, temporary download URL.

Input parameters:

- `job_id` (string, required)

### `get_api_usage` (~25 tokens)

Get RAR.now API usage

Return the caller's RAR.now API credits, usage, and rate limit.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/chrisyau83-rar-now/rar#diagnostics

## Score history

- 2026-11-05: 70
- 2026-11-04: 42
- 2026-11-03: 52
- 2026-11-02: 52
- 2026-11-01: 52
- 2026-10-31: 40
- 2026-10-30: 53
- 2026-10-29: 66
- 2026-10-28: 66
- 2026-10-27: 66

## Common questions

### What is the RAR.now MCP Server server?

RAR.now MCP Server is listed in the public MCP registry as io.github.chrisyau83/rar-now. Convert RAR archives to ZIP, 7Z and TAR through MCP-compatible AI clients. This page covers its hosted endpoint (https://rar.now/mcp).

### Is the RAR.now MCP Server server safe to use?

RAR.now MCP Server scores 70 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 RAR.now MCP Server server expose?

RAR.now MCP Server exposes 4 tools: list_converters, convert_image_url, get_conversion_status, get_api_usage. Their descriptions and schemas cost roughly 226 tokens of context every time the server is loaded.

### Does the RAR.now MCP Server server require authentication?

No. We connected to RAR.now MCP Server without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the RAR.now MCP Server server still maintained?

RAR.now MCP Server 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.

## Links

- Remote endpoint: https://rar.now/mcp
- Authorisation metadata: https://rar.now/.well-known/oauth-protected-resource/mcp
- Repository: https://github.com/chrisyau83/rar-now
- Changelog RSS feed: https://verifymcp.io/servers/chrisyau83-rar-now/rar.xml
- Changelog JSON feed: https://verifymcp.io/servers/chrisyau83-rar-now/rar.json
- HTML version of this page: https://verifymcp.io/servers/chrisyau83-rar-now/rar