Overview
UUID Generator works by creating random 128-bit identifiers following the RFC 4122 UUID version 4 specification. Provides multiple output formats to meet different platform and application requirements.
Live Test UUID Generator Skill Skill →
The tool
Once your client is connected to the VerveKit server, this appears in its tool list as UUIDGeneratorSkill. 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.
{
"name": "UUIDGeneratorSkill",
"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"
}
}
}https://api.vervekit.com/v1/mcpPer-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 |
|---|---|---|
countOptional | integer | Number of UUIDs to generate default 1 · range 1–100 |
versionOptional | integer | UUID version (only version 4 currently supported)4default 4 |
formatOptional | string | Output formatdefaultuppercasenohyphensdefault default |
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.
{
"status": "ok",
"error": null,
"data": {
"uuids": [
"fd874c4e-4fc2-4a65-ab1e-46c7a141c3c3",
"59f31559-dd12-46ff-a3d1-d7bd5eddb09b",
"f09b5f16-1b68-4082-acbc-38ce08de2fe4",
"c8c1b3d8-e927-43a7-840c-ced3964ca95f",
"aa3cb61e-096f-46fa-a12c-5f2b696186fb"
],
"count": 5,
"version": 4,
"format": "default",
"variant": "RFC 4122"
}
}
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 |
|---|---|---|---|
uuids | array | ["fd874c4e-4fc2-4a65-ab1e-46c7a141c3c3","59f31559-dd12-46ff-a3d1-d7bd5eddb09b","f09b5f16-1b68-4082-acbc-38ce08de2fe4"] | Array of generated UUID strings in requested format |
count | number | 5 | Number of UUIDs generated in this request |
version | number | 4 | UUID version specification used (RFC 4122 v4) |
format | string | default | Output format applied to generated UUIDs |
variantPremium | string | RFC 4122 | UUID variant specification identifier |
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 Development
- Generate unique identifiers for API resources, requests, and responses
- Distributed Systems
- Create globally unique identifiers across microservices and distributed applications
- Data Import
- Generate unique identifiers during data migration and import operations
- Testing
- Create unique test data identifiers for automated testing and QA processes
Other ways to use UUID Generator Skill
Set up UUID Generator 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.
Related
More in Data Generation: