MCP server

Craftery Developer Tools Official

dev.craftery/tools

Checked 25 Oct 2026, 20:29 UTC · Connected to it and listed its tools

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

Website

At a glance

Type

MCP server

Publisher

craftery.dev (verified by the MCP Registry)

Status

Working at last check

Tools

6

Token cost

About 1,217 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

25 Oct 2026, 20:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http tools https://craftery.dev/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

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

Gemini CLI

{"mcpServers":{"tools":{"httpUrl":"https://craftery.dev/mcp"}}}

Cursor

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

VS Code

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

Antigravity

agy mcp add tools https://craftery.dev/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"tools","server_url":"https://craftery.dev/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"tools","server_url":"https://craftery.dev/mcp"}

Tools

• check_contrast ~224 tokens
  Computes the exact WCAG 2.1 contrast ratio between a foreground and background color (relative-luminance formula) and reports AA/AAA pass-fail for normal text (4.5 / 7), large text (3 / 4.5), and UI components (3).
• convert_color ~220 tokens
  Converts a color into 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. Applies each platform's alpha byte order (RRGGBBAA on the web, AARRGGBB on Android/Compose/Flutter).
• convert_timestamp ~202 tokens
  Converts between Unix epoch timestamps and human-readable dates. 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
• generate_uuid ~206 tokens
  Generates cryptographically random UUIDs: v4 (random), v7 (RFC 9562 time-ordered; batches stay strictly ordered), or NIL. Supports uppercase, hyphen-less, and braced formatting. 1–100 per call.
• hash_text ~126 tokens
  Computes 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). Stateless; input is not stored.
• swiftui_color ~239 tokens
  Generates 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.

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