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    Ship smarter with our powerful API

    Integrate multi-carrier shipping into your platform in days. Access discounted rates, real-time tracking, and enterprise features through one simple API.

    • Free sandbox access
    • No credit card required
    • Full documentation included
    Quick start example
    JavaScript
    // Example: Get shipping rates
    fetch('https://api.shipsqueeze.com/v1/rates', {
      method: 'POST',
      headers: {
        'Authorization': 'Bearer YOUR_API_KEY',
        'Content-Type': 'application/json'
      },
      body: JSON.stringify({
        from: {
          zip: '10001',
          country: 'US'
        },
        to: {
          zip: '90210',
          country: 'US'
        },
        package: {
          weight: 1.5,
          length: 12,
          width: 8,
          height: 6
        }
      })
    })
    .then(res => res.json())
    .then(data => console.log(data.rates));
    
    Response: 200 OKSample · cheapest first
    {  "rates": [    { "carrier": "USPS", "rate": 9.86 },    { "carrier": "UPS", "rate": 11.62 },    { "carrier": "FedEx", "rate": 12.08 }  ]}
    API uptime
    99.9%
    Average response time
    <200ms
    Labels generated monthly
    50M+
    Average cost savings
    76%

    Integration in 4 simple steps

    From signup to production deployment in days, not months

    1. Get API credentials

      Sign up and receive your API keys instantly. Access our sandbox environment for testing.

    2. Integrate endpoints

      Use our comprehensive documentation and SDKs to integrate our RESTful API into your platform.

    3. Test & deploy

      Test thoroughly in our sandbox, then deploy to production with confidence.

    4. Scale & optimize

      Monitor performance, optimize shipping rules, and scale seamlessly as your business grows.

    Built for speed, scale, and flexibility

    Enterprise-grade features designed to power shipping experiences at any scale

    • Lightning-fast integration

      Get up and running in days, not months. Our RESTful API is designed for quick implementation with comprehensive documentation.

      • Simple REST architecture
      • Complete API documentation
      • Ready-to-use SDKs
      • Live sandbox environment
    • Multi-carrier support

      Access all major carriers through a single API integration. No need to manage multiple carrier connections.

      • 15+ carriers in one API
      • Unified response format
      • Automatic carrier selection
      • Real-time rate shopping
    • Discounted shipping rates

      Access our pre-negotiated carrier rates and save up to 76% on every shipment without minimum volume requirements.

      • Up to 76% off retail rates
      • No volume commitments
      • Instant rate access
      • Transparent pricing
    • High performance & reliability

      Built for scale with 99.9% uptime, sub-second response times, and the ability to handle millions of requests.

      • 99.9% uptime SLA
      • <200ms response time
      • Auto-scaling infrastructure
      • Rate limit protection
    • Enterprise security

      Bank-level security with OAuth 2.0, encrypted data transmission, and compliance with industry standards.

      • OAuth 2.0 authentication
      • 256-bit SSL encryption
      • SOC 2 Type II certified
      • GDPR compliant
    • Advanced analytics

      Get deep insights into shipping performance with real-time analytics, custom reports, and predictive data.

      • Real-time dashboards
      • Custom report builder
      • Cost optimization insights
      • API usage analytics

    Comprehensive API capabilities

    Everything you need to build powerful shipping features into your platform

    • Rate shopping

      Compare rates across all carriers in real-time to find the best price for every shipment.

    • Label generation

      Create shipping labels instantly with a single API call. Support for domestic and international shipments.

    • Address validation

      Validate and standardize addresses automatically to reduce delivery errors and failed shipments.

    • Tracking & webhooks

      Get real-time tracking updates via webhooks. Keep your customers informed automatically.

    • Batch processing

      Process thousands of shipments efficiently with our batch API endpoints.

    • Returns management

      Generate return labels programmatically and streamline your reverse logistics.

    Why developers choose our API

    Built by developers, for developers. We obsess over documentation, reliability, and developer experience so you can focus on building great products.

    • Developer-first design

      Intuitive REST API with comprehensive docs, SDKs, and code examples in multiple languages.

    • Enterprise security

      Bank-level encryption, OAuth 2.0, and compliance with SOC 2 and GDPR standards.

    • Lightning performance

      99.9% uptime SLA with sub-200ms response times and auto-scaling infrastructure.

    • RESTful architectureSimple, predictable endpoints
    • Comprehensive docsStep-by-step guides & examples
    • Sandbox environmentTest without limits
    • Webhook supportReal-time event notifications

    Integration time

    2-5 daysAverage time to production

    Ready to start building?

    Get your API credentials and start shipping smarter in minutes.

    Get API access