Bulk UUID Generator API: Generate Multiple UUIDs at Once

Need to generate hundreds or thousands of UUIDs for database seeding, batch processing, or data migration? The Bulk UUID Generator API creates multiple unique identifiers in a single efficient API call.

Why Generate UUIDs in Bulk?

When seeding databases or processing batch operations, generating UUIDs one at a time creates unnecessary network overhead. A bulk generation endpoint reduces API calls from potentially thousands to just one, dramatically improving performance.

For example, seeding 1,000 records would require 1,000 individual API calls - but with bulk generation, you get all 1,000 UUIDs in a single request.

Performance Considerations

Bulk generation offers significant advantages:

Network Efficiency

Single request/response instead of hundreds, reducing latency overhead

Rate Limit Friendly

Counts as one API call regardless of how many UUIDs are generated

Consistent Results

All UUIDs generated with identical settings in one atomic operation

Performance: Generating 1,000 UUIDs in bulk takes about the same time as generating 1 - all the latency savings from reduced round trips.

Using the Bulk UUID API

TinyFn provides an efficient endpoint for bulk UUID generation:

API Request
GET https://api.tinyfn.io/v1/generate/uuid/bulk?count=100
Headers: X-API-Key: your-api-key
Response
{
  "uuids": [
    "f47ac10b-58cc-4372-a567-0e02b2c3d479",
    "7c9e6679-7425-40de-944b-e07fc1f90ae7",
    "550e8400-e29b-41d4-a716-446655440000",
    // ... 97 more UUIDs
  ],
  "count": 100,
  "version": 4
}

Parameters

Parameter Type Description
count integer Number of UUIDs to generate (1-10000, default: 10)
version integer UUID version: 1 or 4 (default: 4)
format string Output format: standard, no-dashes, uppercase (default: standard)

Code Examples

JavaScript / Node.js

const response = await fetch(
  'https://api.tinyfn.io/v1/generate/uuid/bulk?count=500',
  { headers: { 'X-API-Key': 'your-api-key' } }
);
const { uuids } = await response.json();
console.log(`Generated ${uuids.length} UUIDs`);
// Use in database seeding
const records = uuids.map((id, i) => ({
  id,
  name: `Record ${i + 1}`
}));

Python

import requests

response = requests.get(
    'https://api.tinyfn.io/v1/generate/uuid/bulk',
    headers={'X-API-Key': 'your-api-key'},
    params={'count': 1000, 'version': 4}
)
uuids = response.json()['uuids']
print(f"Generated {len(uuids)} UUIDs")

# Use for batch insert
records = [{'id': uuid, 'data': f'record_{i}'} for i, uuid in enumerate(uuids)]

cURL

curl "https://api.tinyfn.io/v1/generate/uuid/bulk?count=100" \
  -H "X-API-Key: your-api-key"

Common Use Cases

  • Database Seeding: Pre-generate IDs for test data insertion
  • Batch Processing: Assign IDs to items before processing
  • Data Migration: Generate new IDs when migrating between systems
  • Load Testing: Create realistic data sets for performance tests
  • Pre-allocation: Reserve IDs for future records

Best Practices

  1. Request what you need: Generate the exact count needed rather than excess
  2. Cache when appropriate: Store pre-generated UUIDs for immediate use
  3. Handle large batches: For >10,000 UUIDs, make multiple requests
  4. Verify uniqueness: While astronomically unlikely, validate no duplicates in critical applications
  5. Choose v4 for simplicity: UUID v4 is stateless and doesn't require MAC address or timestamps

Use via MCP

Your AI agent can call this tool directly via Model Context Protocol — no HTTP code needed. Add TinyFn to Claude Desktop, Cursor, or any MCP client:

{
  "mcpServers": {
    "tinyfn-generate": {
      "url": "https://api.tinyfn.io/mcp/generate/",
      "headers": {
        "X-API-Key": "your-api-key"
      }
    }
  }
}

See all generator tools available via MCP in our Generator MCP Tools for AI Agents guide.

Try the Bulk UUID Generator API

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