# Sumbloom Puzzles API by CyberMax > Free original number puzzles for people, apps and AI agents: Target (reach a number with + - x /), Cage Grids (4x4 easy, 5x5 medium, 6x6 hard, exactly one solution each) and Brick Pyramids. JSON or printable SVG, with solutions. No key, 30 calls/min per IP. - GET https://sumbloom.cybermax-tools.workers.dev/v1/puzzle?type=cage&level=medium&seed=abc -> puzzle JSON + solution - GET https://sumbloom.cybermax-tools.workers.dev/v1/puzzle?type=target&daily=true -> today's puzzle (same for everyone) - GET https://sumbloom.cybermax-tools.workers.dev/v1/puzzle.svg?type=pyramid&level=hard -> printable SVG (add &solution=true for the answer) - MCP (streamable HTTP): https://sumbloom.cybermax-tools.workers.dev/mcp tool: get_number_puzzle - OpenAPI: https://sumbloom.cybermax-tools.workers.dev/openapi.json Printable book with 120 puzzles and answers (US Letter + A4, classroom licence): https://cybermax-tools-cybermax.static.hf.space/sumbloom-book/index.html All CyberMax tools: https://cybermax-tools-cybermax.static.hf.space/