Koskamo

Zovo Nonogram Maker MCP

Generates printable nonogram puzzles with one solution and answer keys for ChatGPT and Claude. Supports built-in pictures, words, custom pixel grids, and random seeds. Includes a line solver to ensure unique solutions and outputs PDFs with clue numbers and answer pages.

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Endpoint and access

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Zovo Nonogram Maker MCP logo, by ZovoCommunity listingStreamable HTTPNo sign-inEndpoint checked 2026-11-08Published by Zovo
MCP endpoint (Streamable HTTP)
https://nonogram-maker.zovo.one/mcp
Vendor documentation

What its tools do

1 tool, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

Read-only (1)

1 of 1 have a description · 1 of 1 declare behavior hints · 1 of 1 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Endpoint answered the live check ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • Generate printable nonogram puzzles for teachers and students
  • Create custom nonograms from pixel grids or words
  • Generate random nonograms with specific seeds and difficulty levels

Source and maintenance

Community listingRegistry 1.0.0
mcp-registry: io.github.theluckystrike/nonogram-maker@1.0.0Project website

Protocol and capabilities

Server
nonogram-maker 1.0.0
MCP protocol negotiated in check
2025-11-25
Tools
1 advertised
Resources
1 advertised
Resource templates
1 advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": true
  },
  "resources": {
    "listChanged": true
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

Zovo Nonogram Maker makes printable nonogram puzzles (griddlers, hanjie, paint-by-number logic puzzles) as a PDF with an answer key. Call generate_nonograms with one object per puzzle in puzzles[] (shape, text, grid or a random difficulty), or count plus difficulty for a set of random puzzles. Pass a user's own pixel picture as grid rows. Each puzzle is checked by a line solver to have one solution; when a picture's clues allow several, starter cells are printed (fix: hints) unless the user asked otherwise. Do not reveal the picture in chat unless asked.

Tools

1 advertised

generate_nonograms — Generate printable nonograms
Advertised by the server during the last successful anonymous check.
Advertised read-only

Use this when the user wants printable nonogram puzzles (griddlers, hanjie, paint by numbers logic puzzles, pixel puzzles) as a PDF with an answer key: "make a nonogram", "nonogram generator", "turn this pixel art into a nonogram", "printable nonograms for my class". Put one object per puzzle in puzzles[]: shape (a built-in picture such as heart, cat, rocket), text (a word up to 8 letters), grid (the user's own rows, # filled, . empty, up to 25 x 25), or difficulty/size for a random grid; for a set of random puzzles use count with difficulty. A line solver checks that each puzzle has one solution; when a picture's clues allow several, fix decides: hints (default, print starter cells), change (flip a few cells) or refuse (error listing the unclear rows). Layout: per_page 1, 2 or 4, Letter or A4, title, name line, answer pages. Does not make colour nonograms, read photos or image files, or solve a puzzle from a photo.

generate_nonograms input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "fix": {
      "anyOf": [
        {
          "type": "string",
          "maxLength": 30
        },
        {
          "type": "null"
        }
      ],
      "description": "For pictures and words whose clues allow more than one solution: hints (default), change or refuse. Example: refuse"
    },
    "grid": {
      "anyOf": [
        {
          "anyOf": [
            {
              "type": "string",
              "maxLength": 2000
            },
            {
              "type": "array",
              "items": {
                "anyOf": [
                  {
                    "type": "string",
                    "maxLength": 100
                  },
                  {
                    "type": "array",
                    "items": {
                      "type": [
                        "number",
                        "string",
                        "boolean"
                      ]
                    },
                    "maxItems": 40
                  }
                ]
              },
              "maxItems": 40
            }
          ]
        },
        {
          "type": "null"
        }
      ],
      "description": "The user's own picture for a single puzzle, one string per row, # filled, . empty, up to 25 x 25. Example: [\".#.#.\", \"#####\", \".###.\", \"..#..\"]"
    },
    "seed": {
      "type": [
        "number",
        "string",
        "null"
      ],
      "description": "Starting seed; puzzle N uses seed + N - 1. Reuse it to reprint the same puzzles. Example: 2026"
    },
    "size": {
      "type": [
        "number",
        "string",
        "null"
      ],
      "description": "Size of random puzzles, columns x rows, 5 to 25. Example: \"10x10\""
    },
    "text": {
      "anyOf": [
        {
          "type": "string",
          "maxLength": 40
        },
        {
          "type": "null"
        }
      ],
      "description": "A short word to draw as a single puzzle (A-Z, 0-9, up to 8 letters). Example: LOVE"
    },
    "count": {
      "type": [
        "number",
        "string",
        "null"
      ],
      "description": "How many random puzzles when they are all the same kind (1 to 12, default 1). Example: 4"
    },
    "paper": {
      "anyOf": [
        {
          "type": "string",
          "maxLength": 30
        },
        {
          "type": "null"
        }
      ],
      "description": "letter (default, US 8.5 x 11 in) or a4. Example: a4"
    },
    "shape": {
      "anyOf": [
        {
          "type": "string",
          "maxLength": 40
        },
        {
          "type": "null"
        }
      ],
      "description": "Built-in picture for a single puzzle: heart, star, house, cat, dog, fish, tree, smiley, apple, rocket, umbrella, note, anchor, duck, flower, crown, key, bell, moon, ghost. Example: cat"
    },
    "title": {
      "anyOf": [
        {
          "type": "string",
          "maxLength": 200
        },
        {
          "type": "null"
        }
      ],
      "description": "Title printed at the top of each page. Example: Friday Logic Puzzles"
    },
    "puzzles": {
      "anyOf": [
        {
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "fix": {
                "anyOf": [
                  {
                    "type": "string",
                    "maxLength": 30
                  },
                  {
                    "type": "null"
                  }
                ],
                "description": "When the clues allow more than one solution: hints (default, print a few starter cells), change (flip a few cells) or refuse (return an error listing the unclear rows). Example: hints"
              },
              "grid": {
                "anyOf": [
                  {
                    "anyOf": [
                      {
                        "type": "string",
                        "maxLength": 2000
                      },
                      {
                        "type": "array",
                        "items": {
                          "anyOf": [
                            {
                              "type": "string",
                              "maxLength": 100
                            },
                            {
                              "type": "array",
                              "items": {
                                "type": [
                                  "number",
                                  "string",
                                  "boolean"
                                ]
                              },
                              "maxItems": 40
                            }
                          ]
                        },
                        "maxItems": 40
                      }
                    ]
                  },
                  {
                    "type": "null"
                  }
                ],
                "description": "The user's own pixel picture, one string per row, # for filled and . for empty (also X/1 and 0/-), up to 25 x 25. Example: [\"..##..\", \".####.\", \"######\", \".#..#.\"]"
              },
              "seed": {
                "type": [
                  "number",
                  "string",
                  "null"
                ],
                "description": "Seed for this puzzle (random puzzles and starter-cell choice). Example: 42"
              },
              "size": {
                "type": [
                  "number",
                  "string",
                  "null"
                ],
                "description": "Size of a random puzzle, columns x rows, 5 to 25. Example: \"15x15\""
              },
              "text": {
                "anyOf": [
                  {
                    "type": "string",
                    "maxLength": 40
                  },
                  {
                    "type": "null"
                  }
                ],
                "description": "A short word drawn in block letters (A-Z, 0-9, up to 8 letters; 5 to 8 letters use two lines). Example: CAT"
              },
              "label": {
                "anyOf": [
                  {
                    "type": "string",
                    "maxLength": 80
                  },
                  {
                    "type": "null"
                  }
                ],
                "description": "Caption printed above this puzzle. Example: Puzzle A"
              },
              "shape": {
                "anyOf": [
                  {
                    "type": "string",
                    "maxLength": 40
                  },
                  {
                    "type": "null"
                  }
                ],
                "description": "A built-in picture: heart, star, house, cat, dog, fish, tree, smiley, apple, rocket, umbrella, note, anchor, duck, flower, crown, key, bell, moon, ghost. Example: heart"
              },
              "difficulty": {
                "anyOf": [
                  {
                    "type": "string",
                    "maxLength": 30
                  },
                  {
                    "type": "null"
                  }
                ],
                "description": "Random puzzle difficulty: easy (10 x 10), medium (15 x 15, default), hard (20 x 20) or expert (25 x 25). Example: easy"
              }
            },
            "additionalProperties": {}
          },
          "maxItems": 12
        },
        {
          "type": "null"
        }
      ],
      "description": "One object per puzzle when they differ, e.g. [{\"shape\":\"heart\"},{\"text\":\"MOM\"},{\"grid\":[\".##.\",\"####\",\".##.\"]},{\"difficulty\":\"hard\"}]. Leave out and use count for a set of random puzzles. Up to 12."
    },
    "per_page": {
      "type": [
        "number",
        "string",
        "null"
      ],
      "description": "Puzzles per printed page: 1 (default), 2 or 4. Example: 2"
    },
    "name_line": {
      "type": [
        "boolean",
        "string",
        "number",
        "null"
      ],
      "description": "Print a Name and Date line (default true). Example: false"
    },
    "answer_key": {
      "type": [
        "boolean",
        "string",
        "number",
        "null"
      ],
      "description": "Add answer pages with the filled picture (default true). Example: true"
    },
    "difficulty": {
      "anyOf": [
        {
          "type": "string",
          "maxLength": 30
        },
        {
          "type": "null"
        }
      ],
      "description": "Difficulty of random puzzles: easy, medium (default), hard or expert. Example: hard"
    }
  }
}
generate_nonograms output schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "title",
    "count",
    "per_page",
    "paper",
    "pages",
    "answer_key",
    "name_line",
    "all_one_solution",
    "puzzles",
    "notes",
    "downloads"
  ],
  "properties": {
    "count": {
      "type": "number"
    },
    "notes": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "pages": {
      "type": "number"
    },
    "paper": {
      "type": "string"
    },
    "title": {
      "type": "string"
    },
    "puzzles": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "number",
          "source",
          "size",
          "filled",
          "starter_cells",
          "changed_cells",
          "one_solution",
          "seed"
        ],
        "properties": {
          "seed": {
            "type": "number"
          },
          "size": {
            "type": "string"
          },
          "filled": {
            "type": "number"
          },
          "number": {
            "type": "number"
          },
          "source": {
            "type": "string"
          },
          "row_clues": {
            "type": "array",
            "items": {
              "type": "string"
            }
          },
          "column_clues": {
            "type": "array",
            "items": {
              "type": "string"
            }
          },
          "one_solution": {
            "type": "boolean"
          },
          "changed_cells": {
            "type": "number"
          },
          "starter_cells": {
            "type": "number"
          }
        },
        "additionalProperties": false
      }
    },
    "per_page": {
      "type": "number"
    },
    "downloads": {
      "type": "object",
      "required": [
        "pdf"
      ],
      "properties": {
        "pdf": {
          "type": "string"
        }
      },
      "additionalProperties": false
    },
    "name_line": {
      "type": "boolean"
    },
    "answer_key": {
      "type": "boolean"
    },
    "puzzle_count": {
      "type": "object",
      "required": [
        "shown",
        "total"
      ],
      "properties": {
        "shown": {
          "type": "number"
        },
        "total": {
          "type": "number"
        }
      },
      "additionalProperties": false
    },
    "all_one_solution": {
      "type": "boolean"
    }
  },
  "additionalProperties": false
}
generate_nonograms annotations
{
  "title": "Generate printable nonograms",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Prompts

Not advertised

No prompt definitions available.

Resources

1 advertised

nonogram-maker-widget — Zovo Nonogram Maker view

Advertised by the server during the last successful anonymous check.

Interactive view for Zovo Nonogram Maker.

nonogram-maker-widget URI
ui://widget/nonogram-maker-v1-1.0.0-fd0a81c86ec8e41a59d685d0d33a704d3cd0259b4dc259c189b5cf80d9d00be3.html

MIME type: text/html;profile=mcp-app

nonogram-maker-widget-legacy — Zovo Nonogram Maker view (previous versions)

Advertised by the server during the last successful anonymous check.

nonogram-maker-widget-legacy URI template
ui://widget/nonogram-maker-{version}.html

MIME type: text/html;profile=mcp-app

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
543 ms
95th percentile latency
543 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 543 ms · metadata changed · 1 tool(s), 1 resource(s), 1 resource template(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http zovo-nonogram-maker-mcp https://nonogram-maker.zovo.one/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add zovo-nonogram-maker-mcp --url https://nonogram-maker.zovo.one/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable zovo-nonogram-maker-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "zovo-nonogram-maker-mcp": {
      "url": "https://nonogram-maker.zovo.one/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "zovo-nonogram-maker-mcp": {
      "type": "streamableHttp",
      "url": "https://nonogram-maker.zovo.one/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start zovo-nonogram-maker-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "zovo-nonogram-maker-mcp": {
      "type": "http",
      "url": "https://nonogram-maker.zovo.one/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http zovo-nonogram-maker-mcp https://nonogram-maker.zovo.one/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.
Claude Desktop configuration
https://nonogram-maker.zovo.one/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "zovo-nonogram-maker-mcp": {
      "serverUrl": "https://nonogram-maker.zovo.one/mcp"
    }
  }
}

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