Craftery Developer Tools MCP Server

by craftery Your server? Claim it

answering

Craftery Developer Tools is answering right now. Last checked 14 min ago. It exposes 6 tools.

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

Uptime history 22 days of history

22 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

209 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check Craftery Developer Tools every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 14 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

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

~/Library/Application Support/Claude/claude_desktop_config.json

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

~/.codex/config.toml

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

.cursor/mcp.json

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

.vscode/mcp.json

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

Available tools 6

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

convert

convert_color

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.

convert_timestamp

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.

contrast

check_contrast

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.

generate

generate_uuid

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.

hash

hash_text

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.

swiftui

swiftui_color

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.

Endpoints

URL	Transport	State	Latency	Checked
https://craftery.dev/mcp	streamable-http	answering	266 ms	14 min ago

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Craftery Developer Tools — questions

Answers built from our own checks of this server.

What can Craftery Developer Tools do?

It exposes 6 tools, read directly from the server on our last check. Among them: check_contrast, convert_color, convert_timestamp, generate_uuid, hash_text, swiftui_color. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Craftery Developer Tools working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 209 ms. The bar chart above shows every period we have measured.

How do I connect Craftery Developer Tools?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Craftery Developer Tools need an API key?

No. Craftery Developer Tools completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 6 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Craftery Developer Tools?

It answers our handshake in 209 ms on average, which is faster than 65% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.