# JPG.now MCP Server (remote · jpg.now)

Convert JPG images to and from popular formats 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 · `jpg.now`: 70/100 (this document), [markdown](https://verifymcp.io/servers/chrisyau83-jpg-now/jpg.md), [page](https://verifymcp.io/servers/chrisyau83-jpg-now/jpg)

## Channel facts

- Endpoint: `https://jpg.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. 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.
  - 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**: 62/100
  - AI-judged instruction clarity (fair).
  - Tool/resource definitions use about 225 tokens (~56/item across 4 items; 4 tools + 0 resources), lean.
  - 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**: 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 JPG.now MCP Server server?

JPG.now MCP Server is a hosted endpoint at https://jpg.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-jpg-now 'https://jpg.now/mcp'
```

### Cursor

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

### VS Code

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

### Codex

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

### opencode

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

### OpenClaw

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

### Hermes

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

### Netclaw

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

### Vellum

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

### Other

```json
{
  "mcpServers": {
    "chrisyau83-jpg-now": {
      "type": "http",
      "url": "https://jpg.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.

### 2026-11-04 (score 70, +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.

### 2026-11-03 (score 69, +1)

- [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 → 0.20
- [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

### 2026-11-02 (score 68, 0)

- [security regression] Endpoint reachability: reachable → unreachable
- [security regression] Stability: 0.13 → unverified
- [security regression] Tool safety: pass → unverified
- [security regression] Authorization: partial → unverified
- [security regression] Transport: pass → fail
- [functional regression] Capabilities: pass → unverified
- [functional regression] Tool coverage: 100 → unverified

### 2026-10-31 (score 68, +2)

- [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 → 0.10
- [functional improvement] MCP protocol: unverified → pass

### 2026-10-30 (score 66, 0)

- [security regression] Transport: pass → fail

### 2026-10-29 (score 66, 0)

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

### 2026-10-28 (score 66, +33)

- [security regression] HSTS header: unverified → fail
- [security improvement] Authorization: unverified → partial
- [security improvement] Injection markers: unverified → pass
- [security] First check of Judged manipulation: pass
- [functional improvement] Tool coverage: unverified → 100
- [functional improvement] MCP protocol: unverified → pass
- [functional] First check of Tool coverage: 0
- [functional] First check of Schema quality: fail
- [functional] First check of Schema quality: fair
- [functional] First check of Destructive annotations: pass
- [functional] First check of Schema quality: pass
- [functional] First check of Tool coverage: 100

### 2026-10-27 (score 33)

First indexed and scored.

## MCP tools (4)

### `list_converters` (~58 tokens)

List JPG.now converters

Search the live JPG.now converter catalog and return valid converter slugs such as png-to-jpg, jpg-to-webp, pdf-to-jpg, and compress-jpg.

Input parameters:

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

### `convert_image_url` (~108 tokens)

Convert an image from a URL

Download a publicly accessible image or document URL, submit it to JPG.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` (~35 tokens)

Get conversion status

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

Input parameters:

- `job_id` (string, required)

### `get_api_usage` (~24 tokens)

Get JPG.now API usage

Return the caller's JPG.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-jpg-now/jpg#diagnostics

## Score history

- 2026-11-05: 70
- 2026-11-04: 70
- 2026-11-03: 69
- 2026-11-02: 68
- 2026-11-01: 68
- 2026-10-31: 68
- 2026-10-30: 66
- 2026-10-29: 66
- 2026-10-28: 66
- 2026-10-27: 33

## Common questions

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

JPG.now MCP Server is listed in the public MCP registry as io.github.chrisyau83/jpg-now. Convert JPG images to and from popular formats through MCP-compatible AI clients. This page covers its hosted endpoint (https://jpg.now/mcp).

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

JPG.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 JPG.now MCP Server server expose?

JPG.now MCP Server exposes 4 tools: list_converters, convert_image_url, get_conversion_status, get_api_usage. Their descriptions and schemas cost roughly 225 tokens of context every time the server is loaded.

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

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

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

JPG.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.

### What did VerifyMCP test on the JPG.now MCP Server server?

VerifyMCP ran 13 checks on JPG.now MCP Server, 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://jpg.now/mcp
- Authorisation metadata: https://jpg.now/.well-known/oauth-protected-resource/mcp
- Repository: https://github.com/chrisyau83/jpg-now
- Changelog RSS feed: https://verifymcp.io/servers/chrisyau83-jpg-now/jpg.xml
- Changelog JSON feed: https://verifymcp.io/servers/chrisyau83-jpg-now/jpg/changelog.json
- Trust report (JSON): https://verifymcp.io/servers/chrisyau83-jpg-now/jpg.json
- HTML version of this page: https://verifymcp.io/servers/chrisyau83-jpg-now/jpg