# Craftery Developer Tools (remote · craftery.dev)

Developer utilities: color conversion, WCAG contrast, timestamps, UUIDs, and hashing.

- Trust score: 72/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-27

## Components

- remote · `craftery.dev`: 72/100 (this document), [markdown](https://verifymcp.io/servers/dev-craftery-tools/craftery.md), [page](https://verifymcp.io/servers/dev-craftery-tools/craftery)

## Channel facts

- Endpoint: `https://craftery.dev/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.1`

## 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 2026-09-27.

- **Endpoint Security**: 46/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 6 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement.
  - 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**: 72/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 1110 tokens (~185/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**: 100/100
  - No destabilizing schema changes in the last 30 days.
- **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 7 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

## Install

### How do I install the Craftery Developer Tools MCP server?

Craftery Developer Tools is a hosted endpoint at https://craftery.dev/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 dev-craftery-tools 'https://craftery.dev/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "dev-craftery-tools": {
      "url": "https://craftery.dev/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "dev-craftery-tools": {
      "type": "http",
      "url": "https://craftery.dev/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.dev-craftery-tools]
url = "https://craftery.dev/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "dev-craftery-tools": {
      "type": "remote",
      "url": "https://craftery.dev/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add dev-craftery-tools --url 'https://craftery.dev/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  dev-craftery-tools:
    url: "https://craftery.dev/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "dev-craftery-tools": {
      "Transport": "http",
      "Url": "https://craftery.dev/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add dev-craftery-tools -t streamable-http -u 'https://craftery.dev/mcp'
```

### Other

```json
{
  "mcpServers": {
    "dev-craftery-tools": {
      "type": "http",
      "url": "https://craftery.dev/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.

### 2026-09-26 (score 72, +1)

- [security] Stability: 0.97 → pass

### 2026-09-25 (score 71, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-09-24 (score 71, +1)

No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-22 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-19 (score 69, +1)

No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-17 (score 68, +1)

No change was recorded against any check on this day. Stability & Change Management went from 67 to 70. That category is still filling its 30-day observation window: 20 days of observed history at the previous scan, 21 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-15 (score 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 60 to 63. That category is still filling its 30-day observation window: 18 days of observed history at the previous scan, 19 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-13 (score 66, +1)

No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (6)

### `convert_color` (~190 tokens)

Convert color to 12 platform formats

Convert a color into exact, platform-correct code for 12 formats: HEX, HEX8, rgba(), hsla(), closest CSS named color, closest Tailwind class, SwiftUI Color, UIColor, Jetpack Compose, Android XML, Flutter, and React Native. Handles the per-platform alpha byte order (RRGGBBAA on the web vs. AARRGGBB on Android/Compose/Flutter) that is easy to get wrong by hand.

Input parameters:

- `alpha` (number): Opacity 0–1. Overrides any alpha embedded in the color input. Defaults to the input's alpha, or 1.
- `color` (string, required): Color in any supported notation: hex (#F43, #FF6347, #FF6347CC), rgb()/rgba(), hsl()/hsla(), a CSS named color (tomato), or a Tailwind token (red-500).

### `check_contrast` (~205 tokens)

Check WCAG 2.1 contrast ratio

Compute the exact WCAG 2.1 contrast ratio between a foreground and background color (relative-luminance formula) and report AA / AAA pass-fail for normal text (4.5 / 7), large text (3 / 4.5), and UI components (3). Use this instead of estimating contrast — the luminance math is precise here.

Input parameters:

- `background` (string, required): Background color. Color in any supported notation: hex (#F43, #FF6347, #FF6347CC), rgb()/rgba(), hsl()/hsla(), a CSS named color (tomato), or a Tailwind token (red-500).
- `foreground` (string, required): Foreground (text) color. Color in any supported notation: hex (#F43, #FF6347, #FF6347CC), rgb()/rgba(), hsl()/hsla(), a CSS named color (tomato), or a Tailwind token (red-500).

### `swiftui_color` (~184 tokens)

Generate SwiftUI color code

Generate every SwiftUI Color initializer for a color: Color(red:green:blue:), opacity variant, Color(.sRGB), Color(.displayP3), HSB, hex-extension call, #colorLiteral, UIColor/NSColor bridges — plus a reusable `extension Color` snippet and Asset Catalog Contents.json.

Input parameters:

- `alpha` (number): Opacity 0–1. Defaults to the input's alpha, or 1.
- `color` (string, required): Color in any supported notation: hex (#F43, #FF6347, #FF6347CC), rgb()/rgba(), hsl()/hsla(), a CSS named color (tomato), or a Tailwind token (red-500).
- `name` (string): Optional swatch name for the `extension Color` snippet (e.g. "Brand Primary" → `Color.brandPrimary`).

### `generate_uuid` (~142 tokens)

Generate UUIDs (v4 / v7 / NIL)

Generate cryptographically random UUIDs: v4 (random), v7 (RFC 9562 time-ordered, sortable — batches stay strictly ordered), or NIL. Never invent UUIDs by hand — use this for real randomness. Supports uppercase, hyphen-less, and braced formatting.

Input parameters:

- `braces` (boolean): Wrap in braces. Default false.
- `count` (integer): How many UUIDs to generate (1–100). Default 1.
- `hyphens` (boolean): Keep hyphens. Default true.
- `uppercase` (boolean): Uppercase output. Default false.
- `version` (string): UUID version. Default v4.

### `hash_text` (~135 tokens)

Hash text (MD5 / SHA / HMAC)

Compute real MD5, SHA-1, SHA-256, SHA-384, and SHA-512 digests of a UTF-8 string, or HMAC variants when a key is given (HMAC-MD5 unsupported). Hashes cannot be computed mentally — always use this. Runs statelessly; input is not stored. For secrets you'd rather keep on-device, use the in-browser tool at craftery.dev/hash/ instead.

Input parameters:

- `hmac_key` (string): Optional HMAC key. When set, outputs are HMAC digests.
- `text` (string, required): Text to hash (UTF-8).

### `convert_timestamp` (~153 tokens)

Convert Unix timestamp ↔ date

Convert between Unix epoch timestamps and human dates with exact math: accepts epoch seconds / milliseconds / microseconds (auto-detected by magnitude), ISO 8601 / RFC 2822 strings, or "now". Returns seconds, millis, micros, ISO 8601 UTC, RFC 7231 UTC, the wall-clock time in a requested IANA timezone, and a relative description.

Input parameters:

- `input` (string, required): Epoch timestamp (e.g. "1735689600", "1735689600000"), ISO 8601 / RFC 2822 date string, or "now".
- `timezone` (string): IANA timezone for the wall-clock output (e.g. "Asia/Seoul"). Default UTC.

## Diagnostics

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

## Score history

- 2026-09-27: 72
- 2026-09-26: 72
- 2026-09-25: 71
- 2026-09-24: 71
- 2026-09-23: 70
- 2026-09-22: 70
- 2026-09-21: 69
- 2026-09-20: 69
- 2026-09-19: 69
- 2026-09-18: 68
- 2026-09-17: 68
- 2026-09-16: 67
- 2026-09-15: 67
- 2026-09-14: 66
- 2026-09-13: 66
- 2026-09-12: 65
- 2026-09-11: 65
- 2026-09-10: 64
- 2026-09-09: 64
- 2026-09-08: 63
- 2026-09-07: 63
- 2026-09-06: 62
- 2026-09-05: 62
- 2026-09-04: 62
- 2026-09-03: 61
- 2026-09-02: 61
- 2026-09-01: 60
- 2026-08-31: 60
- 2026-08-30: 59
- 2026-08-29: 59

## Common questions

### What is the Craftery Developer Tools MCP server?

Craftery Developer Tools is an MCP server listed in the public MCP registry as dev.craftery/tools. Developer utilities: color conversion, WCAG contrast, timestamps, UUIDs, and hashing. This page covers its hosted endpoint (https://craftery.dev/mcp).

### Is the Craftery Developer Tools MCP server safe to use?

Craftery Developer Tools scores 72 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 Craftery Developer Tools MCP server expose?

Craftery Developer Tools exposes 6 tools: convert_color, check_contrast, swiftui_color, generate_uuid, hash_text, convert_timestamp. Their descriptions and schemas cost roughly 1,009 tokens of context every time the server is loaded.

### Does the Craftery Developer Tools MCP server require authentication?

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

### Is the Craftery Developer Tools MCP server still maintained?

Craftery Developer Tools is still listed as active in the MCP registry. We last reached this channel on 27 September 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://craftery.dev/mcp
- Website: https://craftery.dev/mcp
- Changelog RSS feed: https://verifymcp.io/servers/dev-craftery-tools/craftery.xml
- Changelog JSON feed: https://verifymcp.io/servers/dev-craftery-tools/craftery.json
- HTML version of this page: https://verifymcp.io/servers/dev-craftery-tools/craftery