# SpriteForge Editor (remote · www.spriteforge.tech)

Free pixel and tileset editor, no account: hand-edit sprites, animations and Wang tilesets in chat

- Trust score: 79/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-04

## Components

- remote · `www.spriteforge.tech`: 79/100 (this document), [markdown](https://verifymcp.io/servers/tech-spriteforge-editor/mcp-editor.md), [page](https://verifymcp.io/servers/tech-spriteforge-editor/mcp-editor)

## Channel facts

- Endpoint: `https://www.spriteforge.tech/mcp/editor`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.1.0`

## 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 2026-11-04.

- **Endpoint Security**: 80/100
  - 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.
  - 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
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 1908 tokens (~212/item across 9 items; 6 tools + 3 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 43/100
  - Stability observed for 13 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 98/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 93% 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 8 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.
  - Supports UI / widget rendering.

## Install

### How do I install the SpriteForge Editor MCP server?

SpriteForge Editor is a hosted endpoint at https://www.spriteforge.tech/mcp/editor, 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 tech-spriteforge-editor 'https://www.spriteforge.tech/mcp/editor'
```

### Cursor

```json
{
  "mcpServers": {
    "tech-spriteforge-editor": {
      "url": "https://www.spriteforge.tech/mcp/editor"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "tech-spriteforge-editor": {
      "type": "http",
      "url": "https://www.spriteforge.tech/mcp/editor"
    }
  }
}
```

### Codex

```toml
[mcp_servers.tech-spriteforge-editor]
url = "https://www.spriteforge.tech/mcp/editor"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "tech-spriteforge-editor": {
      "type": "remote",
      "url": "https://www.spriteforge.tech/mcp/editor",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add tech-spriteforge-editor --url 'https://www.spriteforge.tech/mcp/editor' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  tech-spriteforge-editor:
    url: "https://www.spriteforge.tech/mcp/editor"
```

### Netclaw

```json
{
  "McpServers": {
    "tech-spriteforge-editor": {
      "Transport": "http",
      "Url": "https://www.spriteforge.tech/mcp/editor"
    }
  }
}
```

### Vellum

```bash
assistant mcp add tech-spriteforge-editor -t streamable-http -u 'https://www.spriteforge.tech/mcp/editor'
```

### Other

```json
{
  "mcpServers": {
    "tech-spriteforge-editor": {
      "type": "http",
      "url": "https://www.spriteforge.tech/mcp/editor"
    }
  }
}
```

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.

### 2026-11-03 (score 79, +1)

No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-01 (score 78, +1)

No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-30 (score 77, +1)

- [security] Tool “open_tileset_editor” rewrote its description, which is the text the model reads
- [cosmetic] “open_tileset_editor” reworded the description of “base”
- [cosmetic] “open_tileset_editor” reworded the description of “layout”
- [cosmetic] “open_tileset_editor” reworded the description of “png_base64”
- [cosmetic] “open_tileset_editor” reworded the description of “tiles”

### 2026-10-27 (score 76, +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.

### 2026-10-25 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-23 (score 74, +1)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-22 (score 73)

First indexed and scored.

## MCP tools (6)

### `open_editor` (~270 tokens)

Open a sprite in the SpriteForge editor

Opens pixel art in SpriteForge's compact pixel editor - pencil, eraser, fill, colour picker, palette, undo and animation frames - as an interactive card where the app shows them, and returns an edit link (the same editor in a browser) and a session_id. No account needed. One source at most: png_base64 (an existing PNG), art (palette + index grid), or neither for a blank width x height canvas. Max 128x128 pixels and 256 colours. The user's edits save to the edit session automatically.

Input parameters:

- `art` (object): Pixel art in SpriteForge's format: palette = hex colours, grid = rows of palette indexes (-1 = transparent). Optional frames for an animation, each { grid } on the same palette.
- `height` (integer): Blank canvas height in pixels (default 32).
- `name` (string): Sprite name, used as the download filename (letters, digits, _ and -).
- `palette` (array): Starting palette for a blank canvas, as hex colours.
- `png_base64` (string): A PNG file, base64-encoded (a data: URL prefix is fine). Pixels under 50% alpha become transparent.
- `width` (integer): Blank canvas width in pixels (default 32).

### `get_sprite` (~115 tokens)

Get a sprite from a SpriteForge edit session

Returns the current state of a SpriteForge edit session: a preview image, its size and palette, how many edits were saved, and a PNG URL with the exact pixels at 1x (add &frame=N for another frame). With include_pixels it also returns the palette-index grid. Read-only.

Input parameters:

- `include_pixels` (boolean): Also return the palette and index grid (default false).
- `session_id` (string, required): An edit session's id (the s= value of an edit link), or the edit link itself.

### `open_full_editor` (~313 tokens)

Open the full SpriteForge editor

Opens a sprite in SpriteForge's full pixel editor - layers, selection and move, line/rectangle/ellipse, mirror painting, brush sizes, animation frames with onion skin and playback, palette tools - as an interactive card where the app shows them, and returns an edit link that opens the same editor in a browser. One source at most: session_id (an edit session that's already open, or an edit link), png_base64 (an existing PNG), art (palette + index grid), or none for a blank width x height canvas. Max 128x128 pixels and 256 colours. The user's edits save to the edit session.

Input parameters:

- `art` (object): Pixel art in SpriteForge's format: palette = hex colours, grid = rows of palette indexes (-1 = transparent). Optional frames for an animation, each { grid } on the same palette.
- `height` (integer): Blank canvas height in pixels (default 32).
- `name` (string): Sprite name, used as the download filename (letters, digits, _ and -).
- `palette` (array): Starting palette for a blank canvas, as hex colours.
- `png_base64` (string): A PNG file, base64-encoded (a data: URL prefix is fine). Pixels under 50% alpha become transparent.
- `session_id` (string): An edit session that's already open, or an edit link containing ?s=<id>.
- `width` (integer): Blank canvas width in pixels (default 32).

### `open_tileset_editor` (~775 tokens)

Open the SpriteForge tileset editor

Opens a tileset in SpriteForge's tileset editor as an interactive card where the app shows them, and returns an edit link that opens the same editor in a browser. For a Wang autotile set (16 tiles; tile i is drawn where the map cells at its corners are painted, NW=1 NE=2 SW=4 SE=8, so tile 15 is the solid base; sets SpriteForge derives add 4 variants of tile 15 as tiles 16-19, mixed into painted floors) the user paints a small map to see the tiles chain, draws on the map or on single tiles, and edits the base texture, which re-derives the edge tiles (tiles drawn by hand stay); a platformer set (49 tiles) is edited tile by tile. With session_id it opens a tileset that's already in an edit session, and kind (wang = flat floor terrain, wall, iso) switches that Wang set's preview, keeping its tiles and the user's edits. Otherwise it makes a new set from kind (wang, wall, iso or platformer; default wang) plus palette + tiles (16 or 20 grids for Wang, 49 for platformer, in mask order), palette + base (a seamless square texture; the Wang tiles are derived from it as SpriteForge does), png_base64 (a tileset sheet or a texture), or size alone for a blank set. With png_base64 and no layout, a 16x1 or 20x1 image is a strip, a 4x5 one a sheet, and a square one is a 4x4 sheet when its tiles look like a Wang set in mask order (tile 0 empty, or nearly every tile's corners matching tile 15 where its mask has that corner and tile 0 where it doesn't), else a texture. The result says which view it opened and how it read the PNG. The user's edits save to the edit session.

Input parameters:

- `base` (array): A square seamless texture to derive a Wang set from (its 16 tiles and 4 variants of tile 15).
- `kind` (string): wang (flat floor terrain), wall (Wang walls), iso (isometric Wang) or platformer. For a new set, default wang. With session_id, wang, wall or iso switches that Wang set's preview, keeping its tiles;…
- `layout` (string): How to read png_base64: sheet (4x4 or 4x5 Wang sheet, or a platformer set's 7x7), strip (16x1 or 20x1) or texture (a square base texture the Wang tiles are derived from). Default: guessed from the im…
- `name` (string): The set's name.
- `palette` (array): Hex colours for tiles or base.
- `png_base64` (string): A tileset PNG (a Wang set's 4x4 or 4x5 sheet or 16x1 or 20x1 strip, a platformer set's 7x7 sheet) or a square texture, base64.
- `session_id` (string): An existing tileset edit session, or an edit link containing ?s=<id>. Give kind with it to change a Wang set's preview; the other fields are for a new set.
- `size` (integer): Tile size for a blank set (default 32).
- `tiles` (array): The set's tiles in mask order (16 for Wang kinds, or 20 with tile 15's 4 variants after them; 49 for platformer), palette indexes, -1 transparent.

### `load_art` (~35 tokens)

Load an edit session into the editor card

Loads an edit session's sprite into the SpriteForge editor card. Only the card calls it.

Input parameters:

- `session_id` (string, required)

### `save_art` (~82 tokens)

Save the editor card's sprite

Saves the user's edits from the SpriteForge editor card to its edit session. Only the card calls it.

Input parameters:

- `art` (object, required): Pixel art in SpriteForge's format: palette = hex colours, grid = rows of palette indexes (-1 = transparent). Optional frames for an animation, each { grid } on the same palette.
- `session_id` (string, required)

## Diagnostics

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

## Score history

- 2026-11-04: 79
- 2026-11-03: 79
- 2026-11-02: 78
- 2026-11-01: 78
- 2026-10-31: 77
- 2026-10-30: 77
- 2026-10-29: 76
- 2026-10-28: 76
- 2026-10-27: 76
- 2026-10-26: 75
- 2026-10-25: 75
- 2026-10-24: 74
- 2026-10-23: 74
- 2026-10-22: 73

## Common questions

### What is the SpriteForge Editor MCP server?

SpriteForge Editor is an MCP server listed in the public MCP registry as tech.spriteforge/editor. Free pixel and tileset editor, no account: hand-edit sprites, animations and Wang tilesets in chat. This page covers its hosted endpoint (https://www.spriteforge.tech/mcp/editor).

### Is the SpriteForge Editor MCP server safe to use?

SpriteForge Editor scores 79 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 SpriteForge Editor MCP server expose?

SpriteForge Editor exposes 6 tools: open_editor, get_sprite, open_full_editor, open_tileset_editor, load_art, save_art. Their descriptions and schemas cost roughly 1,590 tokens of context every time the server is loaded.

### Does the SpriteForge Editor MCP server require authentication?

No. We connected to SpriteForge Editor without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the SpriteForge Editor MCP server still maintained?

SpriteForge Editor is still listed as active in the MCP registry. We last reached this channel on 4 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://www.spriteforge.tech/mcp/editor
- Website: https://github.com/OndrejKnizat/spriteforge-editor
- Changelog RSS feed: https://verifymcp.io/servers/tech-spriteforge-editor/mcp-editor.xml
- Changelog JSON feed: https://verifymcp.io/servers/tech-spriteforge-editor/mcp-editor.json
- HTML version of this page: https://verifymcp.io/servers/tech-spriteforge-editor/mcp-editor