UUID/Nanoid Generator API

Development

Generate unique identifiers instantly with various algorithms. Create UUIDs, CUIDs, ULIDs, and NanoIDs for secure, sortable, and scalable applications.

Authentication

All API requests require a valid API key passed in the Authorization header as a Bearer token.

Rate Limit

100 requests per minute

Endpoints

1 endpoint available

Overview

The UUID/Nanoid Generator API generates and validates unique identifiers using various algorithms.

Supported ID Types

UUID v1: Timestamp + MAC address based
UUID v3: MD5 hash of namespace + name
UUID v4: Random (most commonly used)
UUID v5: SHA-1 hash of namespace + name
UUID v6: Reordered v1 for sortability
UUID v7: Unix timestamp based, sortable
CUID: Collision-resistant for distributed systems
ULID: Lexicographically sortable
NanoID: Compact, URL-friendly

Validation Support

UUID (any version)
ULID
CUID

Endpoints

POST

/v1/tools/uuid-generator

Generate or validate unique identifiers

Request Body

Content-Type: application/json

Parameter	Type	Required	Description
operation	string	Required	Operation: "generate" or "validate"
type	string	Required	ID type: "uuidv1", "uuidv3", "uuidv4", "uuidv5", "uuidv6", "uuidv7", "cuid", "ulid", "nanoid" (for generate), or "uuid", "ulid", "cuid" (for validate)
count	number	Optional	Number of IDs to generate (1-100, default 1). Only 1 for time-based/namespace types (v1, v3, v5, v6, v7)
id	string	Optional	ID to validate (required for "validate" operation)

Response Example

{
  "success": true,
  "data": {
    "operation": "generate",
    "type": "uuidv4",
    "ids": [
      "550e8400-e29b-41d4-a716-446655440000",
      "f47ac10b-58cc-4372-a567-0e02b2c3d479"
    ],
    "count": 2
  }
}

Error Codes

400

Bad Request - Invalid type or missing required parameters

401

Unauthorized - Invalid or missing API key

429

Too Many Requests - Rate limit exceeded

500

Internal Server Error

Code Examples

# Generate UUIDs
curl -X POST https://api.opentools.ca/v1/tools/uuid-generator \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "operation": "generate",
    "type": "uuidv4",
    "count": 5
  }'

# Validate a UUID
curl -X POST https://api.opentools.ca/v1/tools/uuid-generator \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "operation": "validate",
    "type": "uuid",
    "id": "550e8400-e29b-41d4-a716-446655440000"
  }'

Ready to get started?

Create an API key to start using the UUID/Nanoid Generator API.