VectoSolve API Tutorial: Automate Image Vectorization for Developers

Whether you're building a SaaS product, automating design workflows, or processing thousands of images, the VectoSolve API lets you convert raster images to clean SVG vectors programmatically. This guide covers everything from your first API call to advanced integrations.

• Batch processing — Convert hundreds of images automatically
• SaaS integration — Add vectorization to your product
• Workflow automation — Connect with n8n, Zapier, or OpenClaw
• Consistent quality — Same AI-powered results every time

Getting Started

Step 1: Create Your API Key

Navigate to your API Keys dashboard and click "Create New Key". Give it a descriptive name like "Production" or "Testing".

Important: Copy your API key immediately — it won't be shown again for security reasons.

Step 2: Add Credits

Each API conversion costs $0.20. API credits are sold in lots on the developers page (from $19.99 for 100 conversions), separately from the web plans on the pricing page. Credits never expire, so buy what you need.

Step 3: Make Your First Request

The API endpoint accepts POST requests with your image as form-data:

POST https://vectosolve.com/api/v1/vectorize
Authorization: Bearer YOUR_API_KEY
Content-Type: multipart/form-data

Code Examples

cURL

curl -X POST https://vectosolve.com/api/v1/vectorize \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -F "file=@image.png" \
  -F "removeBackground=false"

Node.js

const FormData = require('form-data');
const fs = require('fs');
const fetch = require('node-fetch');

async function vectorize(imagePath, apiKey) {
  const formData = new FormData();
  formData.append('file', fs.createReadStream(imagePath));
  formData.append('removeBackground', 'false');

  const response = await fetch('https://vectosolve.com/api/v1/vectorize', {
    method: 'POST',
    headers: {
      'Authorization': `Bearer ${apiKey}`,
    },
    body: formData,
  });

  const result = await response.json();

  if (result.success) {
    console.log('SVG URL:', result.svgUrl);
    console.log('Credits remaining:', result.credits.remaining);
    return result.svg;
  } else {
    throw new Error(result.error);
  }
}

// Usage
vectorize('./logo.png', 'YOUR_API_KEY');

Python

import requests

def vectorize(image_path, api_key):
    url = "https://vectosolve.com/api/v1/vectorize"

    with open(image_path, 'rb') as f:
        files = {'file': f}
        data = {'removeBackground': 'false'}
        headers = {'Authorization': f'Bearer {api_key}'}

        response = requests.post(url, files=files, data=data, headers=headers)

    result = response.json()

    if result.get('success'):
        print(f"SVG URL: {result['svgUrl']}")
        print(f"Credits remaining: {result['credits']['remaining']}")
        return result['svg']
    else:
        raise Exception(result.get('error'))

# Usage
svg = vectorize('./logo.png', 'YOUR_API_KEY')

PHP

<?php
function vectorize($imagePath, $apiKey) {
    $url = 'https://vectosolve.com/api/v1/vectorize';

    $curl = curl_init();

    $postFields = [
        'file' => new CURLFile($imagePath),
        'removeBackground' => 'false'
    ];

    curl_setopt_array($curl, [
        CURLOPT_URL => $url,
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_POST => true,
        CURLOPT_POSTFIELDS => $postFields,
        CURLOPT_HTTPHEADER => [
            'Authorization: Bearer ' . $apiKey
        ]
    ]);

    $response = curl_exec($curl);
    curl_close($curl);

    $result = json_decode($response, true);

    if ($result['success']) {
        echo "SVG URL: " . $result['svgUrl'] . "\n";
        return $result['svg'];
    } else {
        throw new Exception($result['error']);
    }
}

// Usage
$svg = vectorize('./logo.png', 'YOUR_API_KEY');
?>

API Response Format

A successful response looks like this:

{
  "success": true,
  "svg": "<svg xmlns=\"http://www.w3.org/2000/svg\"...>",
  "svgUrl": "https://vectosolve.com/api/files/abc123.svg",
  "backgroundRemoved": false,
  "credits": {
    "cost": 0.20,
    "remaining": 9.80
  }
}

Error Handling

The API returns standard HTTP status codes:

Advanced: Background Removal

Add removeBackground=true to automatically remove backgrounds before vectorizing. This costs an additional $0.07 per request:

curl -X POST https://vectosolve.com/api/v1/vectorize \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -F "file=@photo.jpg" \
  -F "removeBackground=true"

Automation Integrations

n8n Workflow

n8n is a powerful workflow automation tool. To integrate VectoSolve:

• Add an HTTP Request node
• Set Method to POST
• URL: https://vectosolve.com/api/v1/vectorize
• Authentication: Header Auth
• Header Name: Authorization
• Header Value: Bearer YOUR_API_KEY
• Body Content Type: Form-Data
• Add parameter file with your binary input

Zapier

Use "Webhooks by Zapier" to connect VectoSolve to 5,000+ apps:

• Add a Webhooks by Zapier action
• Choose POST request
• URL: https://vectosolve.com/api/v1/vectorize
• Add header: Authorization: Bearer YOUR_API_KEY
• Payload Type: Form
• Map your file field from the trigger

OpenClaw / AI Agents

For AI-powered automation tools like OpenClaw:

• Create an API key in your VectoSolve dashboard
• Add a new HTTP tool in your AI agent
• Configure the POST request as shown above
• Parse the JSON response to extract svg or svgUrl

Rate Limits & Best Practices

• Rate limit: 60 requests per minute
• Max file size: 5MB
• Supported formats: PNG, JPG, JPEG, WEBP, GIF
• Credits: Never expire

Tips for batch processing:

• Implement exponential backoff for rate limits
• Queue requests and process in batches of 50
• Cache results to avoid re-converting the same image
• Use webhooks for large batch jobs

Frequently Asked Questions

How much does the API cost?

Each conversion costs $0.20. Background removal adds $0.07. Buy credits in bulk to save — they never expire.

What image formats are supported?

PNG, JPG, JPEG, WEBP, and GIF. Maximum file size is 5MB.

Do credits expire?

No! Once purchased, credits remain in your account forever until used.

What's the rate limit?

60 requests per minute. For higher limits, contact us for enterprise plans.

Can I use the API in commercial products?

Yes! You can integrate the VectoSolve API into your commercial applications, SaaS products, or client projects.

• API Keys Dashboard — Manage your keys and view usage
• FAQ — Common questions answered
• Pricing — Monthly and annual plans

Ready to start? Get your API key and convert your first image in seconds!