Query String Builder Skill

Overview

Provides both encoded and unencoded query strings with full URL formatting, perfect for API integration and dynamic URL generation.

Live Test Query String Builder Skill Skill →

The tool

Once your client is connected to the VerveKit server, this appears in its tool list as QueryStringBuilderSkill. 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": "QueryStringBuilderSkill",
  "arguments": {
    "params": "{\"name\":\"John\",\"age\":30}"
  }
}

You do not name the tool yourself; the model picks it. Asking about {"name":"John","age":30} in the terms this skill covers is enough for it to reach for QueryStringBuilderSkill 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
`params`Required	object	JSON object of parameters
`encode`Optional	boolean	URL encode parameter values default true · url

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": {
    "queryString": "name=John%20Doe&age=30&city=New%20York&interests=coding&interests=music&interests=travel",
    "fullURL": "?name=John%20Doe&age=30&city=New%20York&interests=coding&interests=music&interests=travel",
    "encoded": true,
    "paramCount": 4
  }
}

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
`queryString`	string	`name=John%20Doe&age=30&city=New%20York&interests=coding&interests=music&interests=travel`	Formatted query string with encoded parameter key-value pairs
`fullURL`	string	`?name=John%20Doe&age=30&city=New%20York&interests=coding&interests=music&interests=travel`	Complete query string with leading question mark for URLs
`encoded`	boolean	`true`	Indicates whether URL encoding was applied to parameters
`paramCount`	number	`4`	Total count of unique parameters in the query string

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

API Integration: Build query strings for API requests from parameter objects
URL Generation: Generate dynamic URLs with properly encoded query parameters
Form Processing: Convert form data to URL query strings for GET requests
Link Building: Create shareable links with query parameters from structured data

Other ways to use Query String Builder Skill

Set up Query String Builder 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 →