UUID Generator API
Overview
To use UUID Generator, you need an API key. You can get one by creating a free account and visiting your dashboard.
GET Endpoint
https://api.apiverve.com/v1/uuidgeneratorExample
How to call the UUID Generator API in different programming languages.
curl -X GET \
"https://api.apiverve.com/v1/uuidgenerator?count=5&version=4&format=default" \
-H "X-API-Key: your_api_key_here"const response = await fetch('https://api.apiverve.com/v1/uuidgenerator?count=5&version=4&format=default', {
method: 'GET',
headers: {
'X-API-Key': 'your_api_key_here',
'Content-Type': 'application/json'
}
});
const data = await response.json();
console.log(data);import requests
headers = {
'X-API-Key': 'your_api_key_here',
'Content-Type': 'application/json'
}
response = requests.get('https://api.apiverve.com/v1/uuidgenerator?count=5&version=4&format=default', headers=headers)
data = response.json()
print(data)package main
import (
"fmt"
"io"
"net/http"
)
func main() {
req, _ := http.NewRequest("GET", "https://api.apiverve.com/v1/uuidgenerator?count=5&version=4&format=default", nil)
req.Header.Set("X-API-Key", "your_api_key_here")
req.Header.Set("Content-Type", "application/json")
client := &http.Client{}
resp, err := client.Do(req)
if err != nil {
panic(err)
}
defer resp.Body.Close()
body, _ := io.ReadAll(resp.Body)
fmt.Println(string(body))
}{
"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"
}
}Authentication
The UUID Generator API requires authentication via API key. Include your API key in the request header:
X-API-Key: your_api_key_hereInteractive API Playground
Test the UUID Generator API directly in your browser with live requests and responses.
Parameters
The following parameters are available for the UUID Generator API:
Generate UUID
| Parameter | Type | Required | Description | Default | Example |
|---|---|---|---|---|---|
count | integer | optional | Number of UUIDs to generate Range: 1 - 100 | ||
version | integer | optional | UUID version (only version 4 currently supported) Supported values: 4 | ||
format | string | optional | Output format Supported values: defaultuppercasenohyphens |
Response
The UUID Generator API returns responses in JSON, XML, YAML, and CSV formats. The JSON response is shown in the Example section above; alternative formats below.
Other Response Formats
<?xml version="1.0" encoding="UTF-8"?>
<response>
<status>ok</status>
<error xsi:nil="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
<data>
<uuids>
<uuid>fd874c4e-4fc2-4a65-ab1e-46c7a141c3c3</uuid>
<uuid>59f31559-dd12-46ff-a3d1-d7bd5eddb09b</uuid>
<uuid>f09b5f16-1b68-4082-acbc-38ce08de2fe4</uuid>
<uuid>c8c1b3d8-e927-43a7-840c-ced3964ca95f</uuid>
<uuid>aa3cb61e-096f-46fa-a12c-5f2b696186fb</uuid>
</uuids>
<count>5</count>
<version>4</version>
<format>default</format>
<variant>RFC 4122</variant>
</data>
</response>
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
| key | value |
|---|---|
| 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 Structure
All API responses follow a consistent structure with the following fields:
| Field | Type | Description | Example |
|---|---|---|---|
status | string | Indicates whether the request was successful ("ok") or failed ("error") | ok |
error | string | null | Contains error message if status is "error", otherwise null | null |
data | object | null | Contains the API response data if successful, otherwise null | {...} |
Learn more about response formats →
Response Data Fields
When the request is successful, the data object contains the following fields:
| Field | Type | Sample Value | Description |
|---|---|---|---|
uuids | array | Array of generated UUID strings in requested format | |
count | number | Number of UUIDs generated in this request | |
version | number | UUID version specification used (RFC 4122 v4) | |
format | string | Output format applied to generated UUIDs | |
variantPremium | string | UUID variant specification identifier |
Headers
Only X-API-Key is required. Optional headers include Accept for response format negotiation (JSON, XML, or YAML), User-Agent, and X-Request-ID for request tracing. See all request headers →
GraphQL AccessALPHA
Access UUID Generator through GraphQL to combine it with other API calls in a single request. Query only the uuid generator data you need with precise field selection, and orchestrate complex data fetching workflows.
Credit Cost: Each API called in your GraphQL query consumes its standard credit cost.
POST https://api.apiverve.com/v1/graphqlquery {
uuidgenerator(
input: {
count: 5
version: 4
format: "default"
}
) {
uuids
count
version
format
variant
}
}Note: Authentication is handled via the x-api-key header in your GraphQL request, not as a query parameter.
CORS Support
The UUID Generator API accepts cross-origin requests from any origin, so it can be called directly from browser-based applications without a proxy. See CORS support →
Rate Limiting
UUID Generator requests are throttled per minute on the Free plan and unthrottled on paid plans. Exceeding the limit returns 429 Too Many Requests; rate-limit usage is reported in the X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset response headers. See per-plan limits and best practices →
Error Codes
The UUID Generator API uses standard HTTP status codes — 200 on success, 400 for invalid parameters, 401 for missing or invalid keys, 403 for insufficient credits, 429 for rate-limit exhaustion, and 500/503 for server-side issues. Each error response includes an X-Request-ID header you can quote when contacting support. See full error handling guide →
SDKs for UUID Generator
Official UUID Generator packages on npm, PyPI, NuGet, and JitPack — plus a Postman collection and an OpenAPI spec. See the SDK guide →
No-Code Integrations
UUID Generator works with Zapier, Make, Pipedream, n8n, and Power Automate using the same API key. See setup guides →
Frequently Asked Questions
How do I get an API key for UUID Generator?
How many credits does UUID Generator cost?
Each successful UUID Generator API call consumes credits based on plan tier. Check the pricing section above for the exact credit cost. Failed requests and errors don't consume credits, so you only pay for successful uuid generator lookups.
Can I use UUID Generator in production?
The free plan is for testing and development only. For production use of UUID Generator, upgrade to a paid plan (Starter, Pro, or Mega) which includes commercial use rights, no attribution requirements, and guaranteed uptime SLAs. All paid plans are production-ready.
Can I use UUID Generator from a browser?
What happens if I exceed my UUID Generator credit limit?
When you reach your monthly credit limit, UUID Generator API requests will return an error until you upgrade your plan or wait for the next billing cycle. You'll receive notifications at 80% and 95% usage to give you time to upgrade if needed.








