Docs/Skills/Cryptogram Puzzle Skill

Cryptogram Puzzle Skill

Generate letter substitution cipher puzzles

OperationalCredits 2 per callp50 358msGames

Overview

Returns encoded text, cipher key, letter frequency analysis, and downloadable puzzle and solution images.

Live Test Cryptogram Puzzle Skill Skill →

The tool

Once your client is connected to the VerveKit server, this appears in its tool list as CryptogramPuzzleSkill. It is read-only and open-world — it fetches and never mutates anything on your side — so most clients call it without asking you to confirm.

Tool call
{
  "name": "CryptogramPuzzleSkill",
  "arguments": {}
}

Connecting

One server URL covers every skill in the catalog, including this one. Authorization is OAuth: the client opens a browser once, and there is no key to paste into a config file.

{
  "mcpServers": {
    "vervekit": {
      "url": "https://api.vervekit.com/v1/mcp"
    }
  }
}

Per-client setup — Claude, Cursor, VS Code, ChatGPT — is on the MCP setup page.

Arguments

These are the properties on the tool's inputSchema, so a well-behaved client validates them before the call is made. Premium arguments are accepted on every plan but only take effect on plans that include them.

ArgumentTypeDescription
textOptionalstringText to encode (max 500 characters)
length 0–500
randomOptionalbooleanUse a random famous quote instead of text (a quote is also used when text is omitted)
imageOptionalPremiumbooleanSet to true to generate a downloadable puzzle image
solutionImageOptionalPremiumbooleanSet to true to generate a downloadable solution image

What the model gets back

The result carries a structuredContent object matching the tool's declared outputSchema, so a client reads fields without parsing prose. status is "ok" and error is null on success; a null field means the value was not available for that input, not that the call failed.

Result
{
  "status": "ok",
  "error": null,
  "data": {
    "encoded": "PNR MJSXQRV JI K PNJSGKQC DBFRG ARWBQG ZBPN K GBQWFR GPRY",
    "original": "The journey of a thousand miles begins with a single step",
    "cipher": {
      "A": "K",
      "B": "A",
      "C": "H",
      "D": "C",
      "E": "R",
      "F": "I",
      "G": "W",
      "H": "N",
      "I": "B",
      "J": "M",
      "K": "E",
      "L": "F",
      "M": "D",
      "N": "Q",
      "O": "J",
      "P": "Y",
      "Q": "T",
      "R": "X",
      "S": "G",
      "T": "P",
      "U": "S",
      "V": "L",
      "W": "Z",
      "X": "O",
      "Y": "V",
      "Z": "U"
    },
    "letterCount": 47,
    "wordCount": 11,
    "html": "<html><head><title>Cryptogram Puzzle</title><style>body {font-family: Arial, sans-serif; padding: 20px; max-width: 800px; margin: 0 auto;}h1 {text-align: center;}.puzzle {font-family: monospace; font-size: 24px; letter-spacing: 3px; line-height: 2.5; word-wrap: break-word;}.letter-box {display: inline-block; text-align: center; margin: 2px;}.encoded {border-bottom: 2px solid #333; min-width: 20px; display: block;}.answer {color: #ccc; font-size: 14px;}.space {width: 15px; display: inline-block;}.hint {margin-top: 30px; padding: 15px; background: #f5f5f5; border-radius: 5px;}.hint h3 {margin-top: 0;}</style></head><body><h1>Cryptogram</h1><div class='puzzle'><span class='letter-box'><span class='encoded'>P</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>N</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>R</span><span class='answer'>_</span></span><span class='space'></span><span class='letter-box'><span class='encoded'>M</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>J</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>S</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>X</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>Q</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>R</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>V</span><span class='answer'>_</span></span><span class='space'></span><span class='letter-box'><span class='encoded'>J</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>I</span><span class='answer'>_</span></span><span class='space'></span><span class='letter-box'><span class='encoded'>K</span><span class='answer'>_</span></span><span class='space'></span><span class='letter-box'><span class='encoded'>P</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>N</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>J</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>S</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>G</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>K</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>Q</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>C</span><span class='answer'>_</span></span><span class='space'></span><span class='letter-box'><span class='encoded'>D</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>B</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>F</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>R</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>G</span><span class='answer'>_</span></span><span class='space'></span><span class='letter-box'><span class='encoded'>A</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>R</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>W</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>B</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>Q</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>G</span><span class='answer'>_</span></span><span class='space'></span><span class='letter-box'><span class='encoded'>Z</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>B</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>P</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>N</span><span class='answer'>_</span></span><span class='space'></span><span class='letter-box'><span class='encoded'>K</span><span class='answer'>_</span></span><span class='space'></span><span class='letter-box'><span class='encoded'>G</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>B</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>Q</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>W</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>F</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>R</span><span class='answer'>_</span></span><span class='space'></span><span class='letter-box'><span class='encoded'>G</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>P</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>R</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>Y</span><span class='answer'>_</span></span></div><div class='hint'><h3>Letter Frequency:</h3><p>R=6, G=5, P=4, Q=4, B=4, N=3, J=3, K=3, S=2, F=2, W=2, M=1, X=1, V=1, I=1, C=1, D=1, A=1, Z=1, Y=1</p></div></body></html>",
    "image": {
      "imageName": "0afa5de4-52fb-4902-8139-c177c08ac98b_puzzle.png",
      "format": ".png",
      "downloadURL": "https://storage.googleapis.com/apiverve/APIData/cryptogram/0afa5de4-52fb-4902-8139-c177c08ac98b_puzzle.png?GoogleAccessId=635500398038-compute%40developer.gserviceaccount.com&Expires=1766010132&Signature=guv7GNCup4lJXTI0iCF7Bo2Cz02Wl6h2HWC0YxJ0jtzb7w%2BlW80b1OzBlGR%2BneFxFdzQPwfIuMQlaHsW0KFqPh5ITsFkSt802OEUFyxuiDn71y4XkiJx8zVDhrxNH9R9i1befMM16c%2F4WQGpgzkaaXw8TJJUT2q2s8c8ESo41K85iYcHJZ%2BGUxXeMeFDJ%2FG38pq5txarX%2F0rnmdTk0Jk%2BhEox9PXFPCzaSvWbDFYDVABIt97N2NQyqlDPRcucrm5uuE5Jb9qjT80JqzlumfqiaR3DpgPDwZkWeVyuYW4b4TZCCbbEpK%2FIlRRUZTw9gYdxDpk0B35NKN9WKSCi%2BfFWQ%3D%3D",
      "expires": 1766010132300
    },
    "solutionImage": {
      "imageName": "41e6b5b7-d98c-4d4d-8b44-f56bdb5160b9_solution.png",
      "format": ".png",
      "downloadURL": "https://storage.googleapis.com/apiverve/APIData/cryptogram/41e6b5b7-d98c-4d4d-8b44-f56bdb5160b9_solution.png?GoogleAccessId=635500398038-compute%40developer.gserviceaccount.com&Expires=1766010132&Signature=YKDpJF9MYlmXjASdgVUgtPCq8%2Fp59Eci6DIAbXuHzv9B4rALSZwyq1sMj9KoIRhryYCdNW1KGBRpcgJFSFgaEGfcNC1MNsryoV%2F7bp3TSr1%2BknwqAGQu7sWvZrtozB2oJ3Wzaqz%2BGjm74rhrOaqAx0w7%2BmJtimslEHCl8emRuZxmAhW9l8Wi%2Fv%2BsCmb7%2Bl5hj0njHSs6AWo3YtoZpWoNv7F49g1dQczrfj%2BFYW7bOoFMfcmysTz%2ByNpXECZFbvWJ3A2f0fql7itGLGK%2B%2BNlI6Q6WkQ1ye3c7skHB3DqT%2BWHLbJCm0vjbIVhIgq3Vo39ZADdogcd7uiklvEBriMFkwA%3D%3D",
      "expires": 1766010132645
    }
  }
}

Response fields

Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.

FieldTypeExampleDescription
encodedstringPNR MJSXQRV JI K PNJSGKQC DBFRG ARWBQG ZBPN K GBQWFR GPRYThe encoded cryptogram text with substituted letters
originalstringThe journey of a thousand miles begins with a single stepThe original unencoded text before cipher applied
cipherPremiumobject{…}Mapping of original letters A-Z to cipher substitutions
cipher.APremiumstringK
cipher.BPremiumstringA
cipher.CPremiumstringH
cipher.DPremiumstringC
cipher.EPremiumstringR
cipher.FPremiumstringI
cipher.GPremiumstringW
cipher.HPremiumstringN
cipher.IPremiumstringB
cipher.JPremiumstringM
cipher.KPremiumstringE
cipher.LPremiumstringF
cipher.MPremiumstringD
cipher.NPremiumstringQ
cipher.OPremiumstringJ
cipher.PPremiumstringY
cipher.QPremiumstringT
cipher.RPremiumstringX
cipher.SPremiumstringG
cipher.TPremiumstringP
cipher.UPremiumstringS
cipher.VPremiumstringL
cipher.WPremiumstringZ
cipher.XPremiumstringO
cipher.YPremiumstringV
cipher.ZPremiumstringU
letterCountnumber47Total count of letters in the original text
wordCountnumber11Total count of words in the original text
htmlPremiumstring<html><head><title>Cryptogram Puzzle</title><style>body {font-family: Arial, sans-serif; padding: 20px; max-width: 800px; margin: 0 auto;}h1 {text-align: center;}.puzzle {font-family: monospace; font-size: 24px; letter-spacing: 3px; line-height: 2.5; word-wrap: break-word;}.letter-box {display: inline-block; text-align: center; margin: 2px;}.encoded {border-bottom: 2px solid #333; min-width: 20px; display: block;}.answer {color: #ccc; font-size: 14px;}.space {width: 15px; display: inline-block;}.hint {margin-top: 30px; padding: 15px; background: #f5f5f5; border-radius: 5px;}.hint h3 {margin-top: 0;}</style></head><body><h1>Cryptogram</h1><div class='puzzle'><span class='letter-box'><span class='encoded'>P</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>N</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>R</span><span class='answer'>_</span></span><span class='space'></span><span class='letter-box'><span class='encoded'>M</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>J</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>S</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>X</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>Q</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>R</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>V</span><span class='answer'>_</span></span><span class='space'></span><span class='letter-box'><span class='encoded'>J</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>I</span><span class='answer'>_</span></span><span class='space'></span><span class='letter-box'><span class='encoded'>K</span><span class='answer'>_</span></span><span class='space'></span><span class='letter-box'><span class='encoded'>P</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>N</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>J</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>S</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>G</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>K</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>Q</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>C</span><span class='answer'>_</span></span><span class='space'></span><span class='letter-box'><span class='encoded'>D</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>B</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>F</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>R</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>G</span><span class='answer'>_</span></span><span class='space'></span><span class='letter-box'><span class='encoded'>A</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>R</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>W</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>B</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>Q</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>G</span><span class='answer'>_</span></span><span class='space'></span><span class='letter-box'><span class='encoded'>Z</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>B</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>P</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>N</span><span class='answer'>_</span></span><span class='space'></span><span class='letter-box'><span class='encoded'>K</span><span class='answer'>_</span></span><span class='space'></span><span class='letter-box'><span class='encoded'>G</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>B</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>Q</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>W</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>F</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>R</span><span class='answer'>_</span></span><span class='space'></span><span class='letter-box'><span class='encoded'>G</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>P</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>R</span><span class='answer'>_</span></span><span class='letter-box'><span class='encoded'>Y</span><span class='answer'>_</span></span></div><div class='hint'><h3>Letter Frequency:</h3><p>R=6, G=5, P=4, Q=4, B=4, N=3, J=3, K=3, S=2, F=2, W=2, M=1, X=1, V=1, I=1, C=1, D=1, A=1, Z=1, Y=1</p></div></body></html>Interactive HTML puzzle with blank letter boxes and hint frequency
imagePremiumobject{…}Generated puzzle image with downloadable link and metadata
image.imageNamePremiumstring0afa5de4-52fb-4902-8139-c177c08ac98b_puzzle.pngUnique filename for the puzzle image asset
image.formatPremiumstring.pngImage file format such as PNG or JPEG
image.downloadURLPremiumstringhttps://storage.googleapis.com/apiverve/APIData/cryptogram/0afa5de4-52fb-4902-8139-c177c08ac98b_puzzle.png?GoogleAccessId=635500398038-compute%40developer.gserviceaccount.com&Expires=1766010132&Signature=guv7GNCup4lJXTI0iCF7Bo2Cz02Wl6h2HWC0YxJ0jtzb7w%2BlW80b1OzBlGR%2BneFxFdzQPwfIuMQlaHsW0KFqPh5ITsFkSt802OEUFyxuiDn71y4XkiJx8zVDhrxNH9R9i1befMM16c%2F4WQGpgzkaaXw8TJJUT2q2s8c8ESo41K85iYcHJZ%2BGUxXeMeFDJ%2FG38pq5txarX%2F0rnmdTk0Jk%2BhEox9PXFPCzaSvWbDFYDVABIt97N2NQyqlDPRcucrm5uuE5Jb9qjT80JqzlumfqiaR3DpgPDwZkWeVyuYW4b4TZCCbbEpK%2FIlRRUZTw9gYdxDpk0B35NKN9WKSCi%2BfFWQ%3D%3DSigned URL for downloading the puzzle image file
image.expiresPremiumnumber1766010132300Timestamp when the download URL expires in milliseconds
solutionImagePremiumobject{…}Generated solution image with downloadable link and metadata
solutionImage.imageNamePremiumstring41e6b5b7-d98c-4d4d-8b44-f56bdb5160b9_solution.pngUnique filename for the solution image asset
solutionImage.formatPremiumstring.pngImage file format such as PNG or JPEG
solutionImage.downloadURLPremiumstringhttps://storage.googleapis.com/apiverve/APIData/cryptogram/41e6b5b7-d98c-4d4d-8b44-f56bdb5160b9_solution.png?GoogleAccessId=635500398038-compute%40developer.gserviceaccount.com&Expires=1766010132&Signature=YKDpJF9MYlmXjASdgVUgtPCq8%2Fp59Eci6DIAbXuHzv9B4rALSZwyq1sMj9KoIRhryYCdNW1KGBRpcgJFSFgaEGfcNC1MNsryoV%2F7bp3TSr1%2BknwqAGQu7sWvZrtozB2oJ3Wzaqz%2BGjm74rhrOaqAx0w7%2BmJtimslEHCl8emRuZxmAhW9l8Wi%2Fv%2BsCmb7%2Bl5hj0njHSs6AWo3YtoZpWoNv7F49g1dQczrfj%2BFYW7bOoFMfcmysTz%2ByNpXECZFbvWJ3A2f0fql7itGLGK%2B%2BNlI6Q6WkQ1ye3c7skHB3DqT%2BWHLbJCm0vjbIVhIgq3Vo39ZADdogcd7uiklvEBriMFkwA%3D%3DSigned URL for downloading the solution image file
solutionImage.expiresPremiumnumber1766010132645Timestamp when the download URL expires in milliseconds

Failure modes

Errors come back as tool errors carrying a sentence the model can act on, not a bare status code. Error handling covers the full list.

StatusWhat it means
400 / 422The arguments did not validate. The message names the offending one.
401The OAuth session is invalid or expired — reconnect the server.
403Blocked by a key restriction or an IP allow-list. Never a bad identity.
404This skill is not part of VerveKit. Check the catalog.
429Out of credits, or a brief rate limit. The message tells them apart.

A call costs 2 credits each time the tool actually runs; a model that reasons about the tool without calling it costs nothing.

Use cases

Puzzle Publishing
Create cryptogram puzzles for newspapers, magazines, and puzzle books
Educational Content
Teach cryptography and pattern recognition through interactive puzzles
Brain Training
Develop logical thinking and deductive reasoning exercises
Entertainment
Generate party games and group activities

Other ways to use Cryptogram Puzzle Skill

Set up Cryptogram Puzzle Skill on VerveKit, or reach the same source a different way. Your VerveKit account and credits work on all of them — one key, one balance.

Call it as a REST APIOne HTTPS endpoint and an x-api-key header, with SDKs for Node, Python and .NET.APIVerve →Reference →

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