# io.github.industriesfatty-spec/fattly (npm · fattly)

AI images, video, voiceovers and UGC ads from 50+ models. Official MCP server for fattly.app.

- Trust score: 70/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-20

## Components

- remote · `fattly.app`: 38/100, [markdown](https://verifymcp.io/servers/industriesfatty-spec-fattly/api-mcp.md), [page](https://verifymcp.io/servers/industriesfatty-spec-fattly/api-mcp)
- npm · `fattly`: 70/100 (this document), [markdown](https://verifymcp.io/servers/industriesfatty-spec-fattly/fattly.md), [page](https://verifymcp.io/servers/industriesfatty-spec-fattly/fattly)

## Channel facts

- Registry: `npm`
- Package: `fattly`
- Version: `0.1.2`
- 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 2026-09-20.

- **Supply Chain Security**: 98/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 31 of 95 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 48/100
  - 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 4 days ago).
  - Publishes a security disclosure policy (SECURITY.md).
- **Schema Quality & AI Usability**: 74/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 894 tokens (~149/item across 6 items; 6 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **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.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 6 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 6 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.

**Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

## Install

### How do I install the io.github.industriesfatty-spec/fattly MCP server?

io.github.industriesfatty-spec/fattly runs locally as an npm package, launched with npx -y fattly. 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 industriesfatty-spec-fattly -- npx -y fattly
```

### Cursor

```json
{
  "mcpServers": {
    "industriesfatty-spec-fattly": {
      "command": "npx",
      "args": [
        "-y",
        "fattly"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "industriesfatty-spec-fattly": {
      "command": "npx",
      "args": [
        "-y",
        "fattly"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add industriesfatty-spec-fattly -- npx -y fattly
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "industriesfatty-spec-fattly": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "fattly"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add industriesfatty-spec-fattly --command npx --arg -y --arg fattly
```

### Hermes

```yaml
mcp_servers:
  industriesfatty-spec-fattly:
    command: "npx"
    args: ["-y", "fattly"]
```

### Netclaw

```json
{
  "McpServers": {
    "industriesfatty-spec-fattly": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "fattly"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add industriesfatty-spec-fattly -t stdio -c npx -a -y fattly
```

### Other

```json
{
  "mcpServers": {
    "industriesfatty-spec-fattly": {
      "command": "npx",
      "args": [
        "-y",
        "fattly"
      ]
    }
  }
}
```

## 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.

### 2026-09-17 (score 70, +15)

- [security improvement] Malware scan: unverified → pass
- [functional improvement] Security disclosure: fail → pass

### 2026-09-15 (score 55)

First indexed and scored.

## MCP tools (6)

### `fattly_credits` (~42 tokens)

Check credit balance

Shows the current credit balance on the FATTLY account. Read-only and free — call it before an expensive generation to make sure the user has enough credits.

### `fattly_list_models` (~60 tokens)

List models and prices

Returns available models and their cost in credits (images, video, audio). Read-only and free. Use before generating to pick the right model id and to tell the user what a generation will cost.

Input parameters:

- `category` (string): Optional category filter.

### `fattly_upload_image` (~116 tokens)

Upload a local image

Uploads a local image file (JPG, PNG or WEBP) to FATTLY and returns a public fal URL. Use this to turn a photo on disk into an inputImageUrl for editing / face-swap / image-to-video models: pass the returned URL as inputImageUrl to fattly_generate_image or fattly_generate_video. No credits are charged for the upload.

Input parameters:

- `filePath` (string, required): Absolute path to a local image file (JPG, PNG or WEBP), max 10 MB.

### `fattly_generate_image` (~282 tokens)

Generate an image

Generates an AI image from a prompt (or edits uploaded images). Returns links to the finished images. Spends credits: model price × numImages (see fattly_list_models); fails with an error if the balance is too low, and credits are refunded automatically when a generation fails. Prompts must be safe-for-work.

Input parameters:

- `aspectRatio` (string): Aspect ratio, e.g. 1:1, 16:9, 9:16 (default 1:1).
- `inputImageUrl` (string): Optional single input image for editing / face-swap models — must be a fal URL. Get one by uploading a local photo with fattly_upload_image.
- `inputImageUrls` (array): Optional MULTIPLE input images (fal URLs) for multi-image edit models like nano-banana-2-edit / nano-banana-pro-edit. Typical swap use: image #1 = the scene/frame to keep (background, framing, lighti…
- `model` (string): Model id (default nano-banana-2). List: fattly_list_models.
- `numImages` (integer): Number of images 1–4 (default 1).
- `prompt` (string, required): Description of the image to generate.

### `fattly_generate_video` (~251 tokens)

Generate a video

Generates an AI video from a prompt (or from a start image). Takes a few minutes — the tool waits (up to 10 min) and returns a link to the mp4 file. Video is the most expensive operation: it spends the model's credit price (see fattly_list_models), so confirm the model and cost with the user first. Credits are refunded automatically if the generation fails.

Input parameters:

- `aspectRatio` (string): Aspect ratio, e.g. 16:9, 9:16, 1:1 (default 16:9).
- `duration` (integer): Clip length in seconds (model dependent).
- `inputImageUrl` (string): Optional start image for image-to-video — must be a fal URL. Get one by uploading a local photo with fattly_upload_image.
- `model` (string): Video model id (default kling-3-standard), e.g. kling-3-pro, veo-3-1, veo-3-1-fast, seedance-2-5, hailuo-3, ltx-2-5. Full list with prices: fattly_list_models.
- `prompt` (string, required): Description of the video scene.

### `fattly_generate_audio` (~143 tokens)

Generate a voiceover or music

Generates AI audio: a voiceover (mode=speech) from text, or music (mode=music) from a description. Returns a link to the mp3 file. Spends credits (price in fattly_list_models → audio); refunded automatically if the generation fails.

Input parameters:

- `mode` (string, required): speech = voiceover, music = music.
- `seconds` (integer): Music length: 15, 30 or 60 (music only).
- `text` (string, required): Text to read (speech) or a music description (music).
- `voice` (string): Voiceover voice, e.g. Rachel, Aria, George (speech only).

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/industriesfatty-spec-fattly/fattly#diagnostics

## Score history

- 2026-09-20: 70
- 2026-09-19: 70
- 2026-09-18: 70
- 2026-09-17: 70
- 2026-09-16: 55
- 2026-09-15: 55

## Common questions

### What is the io.github.industriesfatty-spec/fattly MCP server?

io.github.industriesfatty-spec/fattly is an MCP server listed in the public MCP registry as io.github.industriesfatty-spec/fattly. AI images, video, voiceovers and UGC ads from 50+ models. Official MCP server for fattly.app. This page covers its npm package (fattly).

### Is the io.github.industriesfatty-spec/fattly MCP server safe to use?

io.github.industriesfatty-spec/fattly scores 70 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 20 September 2026. It declares no install or post-install scripts. 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 io.github.industriesfatty-spec/fattly MCP server expose?

io.github.industriesfatty-spec/fattly exposes 6 tools: fattly_credits, fattly_list_models, fattly_upload_image, fattly_generate_image, fattly_generate_video, fattly_generate_audio. Their descriptions and schemas cost roughly 894 tokens of context every time the server is loaded.

### Is the io.github.industriesfatty-spec/fattly MCP server still maintained?

io.github.industriesfatty-spec/fattly is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the io.github.industriesfatty-spec/fattly MCP server under?

io.github.industriesfatty-spec/fattly declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- npm package: https://www.npmjs.com/package/fattly
- Socket report: https://socket.dev/npm/package/fattly
- Repository: https://github.com/industriesfatty-spec/fattly-mcp
- Website: https://fattly.app/
- Changelog RSS feed: https://verifymcp.io/servers/industriesfatty-spec-fattly/fattly.xml
- Changelog JSON feed: https://verifymcp.io/servers/industriesfatty-spec-fattly/fattly.json
- HTML version of this page: https://verifymcp.io/servers/industriesfatty-spec-fattly/fattly