Acrostic Puzzle Skill

Overview

For each letter of `word`, the generator picks one answer that begins with that letter and adds it to `lines`. The keyword is uppercased first, so `keyword` and every `letter` come back in capitals. With the default `theme` of `random`, the candidates are every dictionary entry made only of the letters a-z and at least three letters long, and one is chosen at random. A named theme first looks in that theme's fixed list of 26 words; when the list has no word for a letter (four of the five themes have none for X, for example), that line falls back to the full dictionary.

Each `clue` is the dictionary definition of its `answer`, cut to 80 characters with `...` appended when it was longer. If an answer has no definition, the clue reads "A word starting with" and the letter. `letterCount` is the length of the answer, `position` is its 1-based line number, and `lineCount` equals the number of characters in the keyword.

No answer repeats within a puzzle and no answer is the keyword itself; when a theme's word for a letter is already used (or is the keyword), that line falls back to the full dictionary. A keyword containing anything other than the letters A-Z returns a 400.

On the Free plan the `theme` parameter is removed before the request runs, so puzzles always use the full dictionary and `theme` reads `random`; `html` and `image` are null. On paid plans `html` holds a styled page with each first letter, blanks for the remaining letters, the clue, and the hidden word masked. `image=true` renders the same layout as a PNG and returns a `downloadURL` that expires one day later (`image.expires`).

Live Test Acrostic Puzzle Skill Skill →

The tool

Once your client is connected to the VerveKit server, this appears in its tool list as AcrosticPuzzleSkill. 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": "AcrosticPuzzleSkill",
  "arguments": {
    "word": "HAPPY"
  }
}

You do not name the tool yourself; the model picks it. Asking about HAPPY in the terms this skill covers is enough for it to reach for AcrosticPuzzleSkill on its own — naming it explicitly also works, and is the way to force the call.

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.

Argument	Type	Description
`word`Required	string	The keyword to spell out (3-15 letters)
`theme`OptionalPremium	string	Theme: random, positive, nature, adventure, friendship, learning default random
`image`OptionalPremium	boolean	Set to true to generate a downloadable puzzle 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": {
    "keyword": "HAPPY",
    "theme": "positive",
    "lines": [
      {
        "position": 1,
        "letter": "H",
        "answer": "HAPPY",
        "letterCount": 5,
        "clue": "1. Favored by hap, luck, or fortune; lucky; fortunate; successful; prosperous; s..."
      },
      {
        "position": 2,
        "letter": "A",
        "answer": "AMAZING",
        "letterCount": 7,
        "clue": "Causing amazement; very wonderful; as, amazing grace. -- A*maz\"ing*ly, adv."
      },
      {
        "position": 3,
        "letter": "P",
        "answer": "PEACEFUL",
        "letterCount": 8,
        "clue": "1. Possessing or enjoying peace; not disturbed by war, tumult, agitation, anxiet..."
      },
      {
        "position": 4,
        "letter": "P",
        "answer": "PEACEFUL",
        "letterCount": 8,
        "clue": "1. Possessing or enjoying peace; not disturbed by war, tumult, agitation, anxiet..."
      },
      {
        "position": 5,
        "letter": "Y",
        "answer": "YOUTHFUL",
        "letterCount": 8,
        "clue": "1. Not yet mature or aged; young. \"Two youthful knights.\" Dryden.  Also used fig..."
      }
    ],
    "lineCount": 5,
    "html": "<html><head><title>Acrostic Puzzle</title><style>body {font-family: Arial, sans-serif; padding: 20px; max-width: 700px; margin: 0 auto;}h1 {text-align: center; color: #FF5722;}.intro {text-align: center; color: #666; margin-bottom: 30px;}.puzzle {margin: 20px 0;}.line {display: flex; align-items: center; margin: 10px 0; padding: 10px; background: #f5f5f5; border-radius: 5px;}.number {width: 30px; font-weight: bold; color: #FF5722;}.first-letter {width: 40px; height: 40px; background: #FF5722; color: white; display: flex; align-items: center; justify-content: center; font-size: 24px; font-weight: bold; border-radius: 5px; margin-right: 10px;}.blanks {display: flex; gap: 3px; margin-right: 15px;}.blank {width: 25px; height: 30px; border-bottom: 2px solid #333;}.clue {flex: 1; font-size: 14px; color: #666; font-style: italic;}.keyword {text-align: center; margin-top: 30px; padding: 20px; background: #FFF3E0; border-radius: 10px;}.keyword-letters {display: flex; justify-content: center; gap: 10px;}.keyword-letter {width: 40px; height: 40px; background: #FF5722; color: white; display: flex; align-items: center; justify-content: center; font-size: 24px; font-weight: bold; border-radius: 5px;}</style></head><body><h1>Acrostic Puzzle</h1><div class='intro'>Solve the clues. The first letters spell a word!</div><div class='puzzle'><div class='line'><span class='number'>1.</span><span class='first-letter'>H</span><span class='blanks'><span class='blank'></span><span class='blank'></span><span class='blank'></span><span class='blank'></span></span><span class='clue'>1. Favored by hap, luck, or fortune; lucky; fortunate; successful; prosperous; s...</span></div><div class='line'><span class='number'>2.</span><span class='first-letter'>A</span><span class='blanks'><span class='blank'></span><span class='blank'></span><span class='blank'></span><span class='blank'></span><span class='blank'></span><span class='blank'></span></span><span class='clue'>Causing amazement; very wonderful; as, amazing grace. -- A*maz'ing*ly, adv.</span></div><div class='line'><span class='number'>3.</span><span class='first-letter'>P</span><span class='blanks'><span class='blank'></span><span class='blank'></span><span class='blank'></span><span class='blank'></span><span class='blank'></span><span class='blank'></span><span class='blank'></span></span><span class='clue'>1. Possessing or enjoying peace; not disturbed by war, tumult, agitation, anxiet...</span></div><div class='line'><span class='number'>4.</span><span class='first-letter'>P</span><span class='blanks'><span class='blank'></span><span class='blank'></span><span class='blank'></span><span class='blank'></span><span class='blank'></span><span class='blank'></span><span class='blank'></span></span><span class='clue'>1. Possessing or enjoying peace; not disturbed by war, tumult, agitation, anxiet...</span></div><div class='line'><span class='number'>5.</span><span class='first-letter'>Y</span><span class='blanks'><span class='blank'></span><span class='blank'></span><span class='blank'></span><span class='blank'></span><span class='blank'></span><span class='blank'></span><span class='blank'></span></span><span class='clue'>1. Not yet mature or aged; young. 'Two youthful knights.' Dryden.  Also used fig...</span></div></div><div class='keyword'><p>Hidden word:</p><div class='keyword-letters'><div class='keyword-letter'>?</div><div class='keyword-letter'>?</div><div class='keyword-letter'>?</div><div class='keyword-letter'>?</div><div class='keyword-letter'>?</div></div></div></body></html>",
    "image": {
      "imageName": "8b67d4ec-c262-4f7b-9cf1-b8c2766e8c54_acrostic.png",
      "format": ".png",
      "downloadURL": "https://storage.googleapis.com/apiverve/APIData/acrostic/8b67d4ec-c262-4f7b-9cf1-b8c2766e8c54_acrostic.png?GoogleAccessId=635500398038-compute%40developer.gserviceaccount.com&Expires=1766009969&Signature=IBbnpk61J5uW7bsfoqRwceF7weeBO%2Bq63BKH7LZpXLhZJk1vYISzRXy%2BPeZnH0t4h%2FvK%2BIJCv84THbV5ym9KkdLUXJK3wYkh8XoyZz%2FyFsBNJ6YCtFLkb0F3AULXyOGEcJ3F3mz4f2oS9P6Wtx4bX8NKVs3B316pY0aJzKo%2Fm5Lnv81i9y%2BRA7EMc9f7M8N9Nin08T%2F4K3W3LxO%2FJUcwocs7UTAORbhCSTqbSn2eIhJLKAN%2B4gSvDghzigwHT9THBVAD1VHgmkfxPNKMqFcarnah7Lfh78RcZM5Zfubl50YgBLVwwwQ%2Bp0Sxbjgeb0osdEkHwAfXbKP2bmA9%2B3TrLA%3D%3D",
      "expires": 1766009969599
    }
  }
}

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.

Field	Type	Example	Description
`keyword`	string	`HAPPY`	The word spelled by first letters of all answers
`theme`	string	`positive`	The selected theme used to generate word answers
`lines`	array[5]		Array of clue objects with answers and letters
`lines.0.position`	number	`1`	Line number position in the acrostic puzzle
`lines.0.letter`	string	`H`	First letter of the answer word for this line
`lines.0.answer`	string	`HAPPY`	The complete answer word for this clue
`lines.0.letterCount`	number	`5`	Number of letters in the answer word
`lines.0.clue`	string	`1. Favored by hap, luck, or fortune; lucky; fortunate; successful; prosperous; s...`	Dictionary definition clue for solving the puzzle
`lineCount`	number	`5`	Total number of lines and clues in puzzle
`html`Premium	string	`<html><head><title>Acrostic Puzzle</title><style>body {font-family: Arial, sans-serif; padding: 20px…`	Rendered interactive HTML puzzle with styled layout
`image`Premium	object	`{…}`	Generated puzzle image with metadata and download URL
`image.imageName`Premium	string	`8b67d4ec-c262-4f7b-9cf1-b8c2766e8c54_acrostic.png`	Unique identifier for the generated puzzle image
`image.format`Premium	string	`.png`	Image file format extension like .png or .jpg
`image.downloadURL`Premium	string	`https://storage.googleapis.com/apiverve/APIData/acrostic/8b67d4ec-c262-4f7b-9cf1-b8c2766e8c54_acrost…`	Cloud storage URL for downloading the puzzle image
`image.expires`Premium	number	`1766009969599`	Unix timestamp when the download URL expires

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.

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

Education: Create vocabulary puzzles that reveal themed words
Special Occasions: Generate personalized acrostics for names and messages
Word Games: Build acrostic challenges for puzzle apps
Creative Writing: Inspire poetry and creative word exercises

Other ways to use Acrostic Puzzle Skill

Set up Acrostic 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 →