Sumbloom

Original solver-checked number puzzles as JSON or printable SVG, plus a daily puzzle.

Should I use this

Quality & Safety

A
Description quality
100%
Schema completeness
82%
Naming quality
100%
Poisoning risk
100%
Permission match
100%
Protocol compliance
100%

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~309Tokens (tool definitions)
~2.0 KBTypical response size
Minimal attention impact (0.24% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "sumbloom": {
      "url": "https://sumbloom.cybermax-tools.workers.dev/mcp?via=mcp-registry"
    }
  }
}

Remote endpoints

https://sumbloom.cybermax-tools.workers.dev/mcp?via=mcp-registrystreamable-http

What it can do

Tool inventory

Tools (1)

🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
🟢get_number_puzzle(type, level, seed, daily, include_solution)

Returns an original number puzzle (Target, Cage Grid or Brick Pyramid) at easy, medium or hard, with its rules, the puzzle as JSON, an SVG image URL for printing and, optionally, the solution. Cage Grids and Pyramids have exactly one solution (solver-checked). Use it for math practice, classroom warm-ups, puzzle apps or a daily puzzle. Free tier 50 puzzles a day without a key; paid API keys (Bearer) for more.

Input Schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "enum": [
        "target",
        "cage",
        "pyramid"
      ],
      "description": "target = reach a number with + - x /; cage = Latin-square cage grid (4x4 easy, 5x5 medium, 6x6 hard); pyramid = brick pyramid of sums",
      "default": "cage"
    },
    "level": {
      "type": "string",
      "enum": [
        "easy",
        "medium",
        "hard"
      ],
      "default": "easy"
    },
    "seed": {
      "type": "string",
      "description": "Any text; the same type + level + seed always returns the same puzzle. Omit for a random one."
    },
    "daily": {
      "type": "boolean",
      "description": "true = today's puzzle (same for everyone, changes at 00:00 UTC)",
      "default": false
    },
    "include_solution": {
      "type": "boolean",
      "default": true
    }
  },
  "additionalProperties": false
}

Community

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Evidence

Recent observations

verifiedversion not recorded1 tools