Koskamo

Zovo Cryptogram Maker MCP

A community MCP server that turns quotes into printable cryptogram puzzles with answer keys, hint letters, and a solver helper. It supports generating up to 30 puzzles in one PDF, large print options, and confidence-ranked readings for stuck cryptoquotes.

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Endpoint and access

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

What its tools do

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

Read-only (2)

2 of 2 have a description · 2 of 2 declare behavior hints · 2 of 2 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 cryptogram puzzles from quotes
  • Solve stuck cryptoquotes with confidence rankings
  • Create large print puzzles for seniors
  • Add hint letters and letter-count grids

Source and maintenance

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

Protocol and capabilities

Server
cryptogram 1.0.0
MCP protocol negotiated in check
2025-11-25
Tools
2 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 Cryptogram Maker makes printable cryptogram puzzles from the user's quotes (generate_cryptograms) and suggests readings for a cryptogram the user is stuck on (solve_cryptogram). Put each quote and author in puzzles[]. When solving, report the confidence the tool gives and do not present a low-confidence reading as certain.

Tools

2 advertised

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

Use this when the user wants printable cryptogram puzzles (cryptogram maker, cryptoquote puzzles, cryptogram puzzles printable with answers, large print cryptograms) from their own quotes or phrases. Convert pasted quotes or a photo of a list into puzzles[] with quote and author fields; text is only a fallback. Each puzzle gets its own substitution key in which no letter stands for itself; optional hint letters, a letter-count helper grid and large print; the PDF ends with an answer key. Only A-Z letters are enciphered; accented letters and other alphabets stay as written. If the user gives no quotes, pick suitable public-domain quotes first. Does not make symbol ciphers or solve puzzles (use solve_cryptogram).

generate_cryptograms input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "seed": {
      "type": [
        "number",
        "string",
        "null"
      ],
      "description": "Seed for the letter keys; the same seed and quotes give the same puzzles. Example: 2026"
    },
    "text": {
      "anyOf": [
        {
          "type": "string",
          "maxLength": 30000
        },
        {
          "type": "null"
        }
      ],
      "description": "Fallback only: pasted quotes, one per line, as \"quote - author\". Use puzzles[] when you can."
    },
    "hints": {
      "type": [
        "number",
        "string",
        "null"
      ],
      "description": "Hint letters revealed per puzzle (0 to 5); overrides difficulty. Example: 2"
    },
    "paper": {
      "anyOf": [
        {
          "type": "string",
          "maxLength": 30
        },
        {
          "type": "null"
        }
      ],
      "description": "letter (default) or a4. Example: a4"
    },
    "title": {
      "anyOf": [
        {
          "type": "string",
          "maxLength": 200
        },
        {
          "type": "null"
        }
      ],
      "description": "Title on the first page. Example: Friday Cryptoquotes"
    },
    "puzzles": {
      "anyOf": [
        {
          "type": "array",
          "items": {
            "type": "object",
            "required": [
              "quote"
            ],
            "properties": {
              "quote": {
                "type": "string",
                "maxLength": 2000,
                "description": "The quote or phrase to encipher, as written (up to 1,000 characters are used). Example: The only way to do great work is to love what you do."
              },
              "author": {
                "anyOf": [
                  {
                    "type": "string",
                    "maxLength": 200
                  },
                  {
                    "type": "null"
                  }
                ],
                "description": "Who said it (optional). Example: Steve Jobs"
              }
            },
            "additionalProperties": {}
          },
          "maxItems": 500
        },
        {
          "type": "null"
        }
      ],
      "description": "One object per puzzle. Convert pasted quotes or a photo of a list into these fields. Example: [{\"quote\":\"Well begun is half done.\",\"author\":\"Aristotle\"}]. Up to 30."
    },
    "answer_key": {
      "type": [
        "boolean",
        "string",
        "number",
        "null"
      ],
      "description": "Include the answer key pages (default true). Example: true"
    },
    "difficulty": {
      "anyOf": [
        {
          "type": "string",
          "maxLength": 30
        },
        {
          "type": "null"
        }
      ],
      "description": "easy (3 hint letters), medium (1 hint, default) or hard (no hints). Example: easy"
    },
    "large_print": {
      "type": [
        "boolean",
        "string",
        "number",
        "null"
      ],
      "description": "Large print for seniors or low vision: letters about 22 pt with bigger answer boxes. Default false. Example: true"
    },
    "letter_counts": {
      "type": [
        "boolean",
        "string",
        "number",
        "null"
      ],
      "description": "Print the letter-count helper grid under each puzzle (default true). Example: true"
    },
    "encipher_author": {
      "type": [
        "boolean",
        "string",
        "number",
        "null"
      ],
      "description": "Encipher the author's name too, like a newspaper cryptoquote (default true). Example: false"
    }
  }
}
generate_cryptograms output schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "title",
    "count",
    "seed",
    "large_print",
    "paper",
    "pages",
    "hints_per_puzzle",
    "self_mapped_letters",
    "puzzles",
    "skipped",
    "notes",
    "downloads"
  ],
  "properties": {
    "seed": {
      "type": "number"
    },
    "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",
          "cipher",
          "hints",
          "letters",
          "distinct_letters",
          "flags"
        ],
        "properties": {
          "flags": {
            "type": "array",
            "items": {
              "type": "string"
            }
          },
          "hints": {
            "type": "array",
            "items": {
              "type": "string"
            }
          },
          "author": {
            "type": "string"
          },
          "cipher": {
            "type": "string"
          },
          "number": {
            "type": "number"
          },
          "letters": {
            "type": "number"
          },
          "author_cipher": {
            "type": "string"
          },
          "distinct_letters": {
            "type": "number"
          }
        },
        "additionalProperties": false
      }
    },
    "skipped": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "number",
          "reason"
        ],
        "properties": {
          "number": {
            "type": "number"
          },
          "reason": {
            "type": "string"
          }
        },
        "additionalProperties": false
      }
    },
    "downloads": {
      "type": "object",
      "required": [
        "pdf"
      ],
      "properties": {
        "pdf": {
          "type": "string"
        }
      },
      "additionalProperties": false
    },
    "large_print": {
      "type": "boolean"
    },
    "puzzle_count": {
      "type": "object",
      "required": [
        "shown",
        "total"
      ],
      "properties": {
        "shown": {
          "type": "number"
        },
        "total": {
          "type": "number"
        }
      },
      "additionalProperties": false
    },
    "hints_per_puzzle": {
      "type": "number"
    },
    "self_mapped_letters": {
      "type": "number"
    }
  },
  "additionalProperties": false
}
generate_cryptograms annotations
{
  "title": "Generate printable cryptograms",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
solve_cryptogram — Suggest cryptogram solutions
Advertised by the server during the last successful anonymous check.
Advertised read-only

Use this when the user is stuck on a cryptogram or cryptoquote (cryptoquote help, cryptogram solver) and gives the enciphered text. Returns up to 3 candidate readings ranked against an English word list of about 25,000 words, the letter key for the top reading, the letters still open, and a confidence of high, medium or low with the reason. Pass letters already known (a printed clue) in known_letters. Short texts, names and rare words lower the confidence, and the tool says so; report that confidence to the user. English only; does not solve number or symbol ciphers, Caesar shifts with a shown key, or today's newspaper puzzle without its text.

solve_cryptogram input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "ciphertext"
  ],
  "properties": {
    "ciphertext": {
      "type": "string",
      "maxLength": 3000,
      "description": "The enciphered text exactly as printed, including punctuation and the author line. Example: \"GSV JFRXP YILDM ULC QFNKH LEVI GSV OZAB WLT.\""
    },
    "known_letters": {
      "anyOf": [
        {
          "anyOf": [
            {
              "type": "array",
              "items": {
                "type": "object",
                "required": [
                  "cipher",
                  "plain"
                ],
                "properties": {
                  "plain": {
                    "type": "string",
                    "maxLength": 3,
                    "description": "Plain letter it stands for. Example: T"
                  },
                  "cipher": {
                    "type": "string",
                    "maxLength": 3,
                    "description": "Cipher letter. Example: Q"
                  }
                }
              }
            },
            {
              "type": "string",
              "maxLength": 400
            }
          ]
        },
        {
          "type": "null"
        }
      ],
      "description": "Letters already known, e.g. a printed clue. Example: [{\"cipher\":\"Q\",\"plain\":\"T\"}] or \"Q=T, X=E\""
    },
    "allow_self_mapping": {
      "type": [
        "boolean",
        "string",
        "number",
        "null"
      ],
      "description": "Allow a letter to stand for itself (default false; most cryptograms forbid it). Example: false"
    }
  }
}
solve_cryptogram output schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "confidence",
    "reason",
    "best",
    "key",
    "unresolved_letters",
    "candidates",
    "known_letters",
    "notes",
    "uncertain_words"
  ],
  "properties": {
    "key": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "best": {
      "type": "string"
    },
    "notes": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "reason": {
      "type": "string"
    },
    "candidates": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "text",
          "words_recognized",
          "words_total",
          "unresolved_letters"
        ],
        "properties": {
          "text": {
            "type": "string"
          },
          "words_total": {
            "type": "number"
          },
          "words_recognized": {
            "type": "number"
          },
          "unresolved_letters": {
            "type": "array",
            "items": {
              "type": "string"
            }
          }
        },
        "additionalProperties": false
      }
    },
    "confidence": {
      "type": "string"
    },
    "known_letters": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "uncertain_words": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "unresolved_letters": {
      "type": "array",
      "items": {
        "type": "string"
      }
    }
  },
  "additionalProperties": false
}
solve_cryptogram annotations
{
  "title": "Suggest cryptogram solutions",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Prompts

Not advertised

No prompt definitions available.

Resources

1 advertised

cryptogram-widget — Zovo Cryptogram Maker view

Advertised by the server during the last successful anonymous check.

Interactive view for Zovo Cryptogram Maker.

cryptogram-widget URI
ui://widget/cryptogram-v1-1.0.0-005dfb3f480299cb30ce065bb738bf240583b45f370ce218909a62689116072f.html

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

cryptogram-widget-legacy — Zovo Cryptogram Maker view (previous versions)

Advertised by the server during the last successful anonymous check.

cryptogram-widget-legacy URI template
ui://widget/cryptogram-{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
1253 ms
95th percentile latency
1253 ms

Maintenance history

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

  • · probe · passed · 1253 ms · metadata changed · 2 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-cryptogram-maker-mcp https://cryptogram.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-cryptogram-maker-mcp --url https://cryptogram.zovo.one/mcp

Cursor

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

Cline

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

VS Code

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

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