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Number puzzle API + MCP: solver-checked puzzles as JSON/SVG, daily puzzle. $5/mo; 50 free/day.
Remote server: your requests and data go to sumbloom.cybermaxtools.com. Claude Code: claude mcp add --transport http sumbloom https://sumbloom.cybermaxtools.com/mcp?via=mcp-registry · Claude app: Settings → Connectors → Add custom connector.
The tools this server listed when we connected to it, in its own words.
get_number_puzzle — 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 iNot tested by KitScout yet. When our harness runs it, pros, cons and the tasks we tried appear here, with the date and evidence.