Shipping IO
Connect Shipping IO with Webflow to automate multi-carrier shipping workflows through custom API integration.
How to integrate Shipping IO with Webflow
Shipping IO provides no public API documentation. The integration depends entirely on obtaining private API access.
The only available method is Custom API integration using serverless middleware to connect Webflow's e-commerce webhooks with Shipping IO's API. This requires mid-to-senior developers.
Custom API integration
Contact Shipping IO to request private API documentation before development. Once done, confirm the following:
- API endpoint URLs
- Authentication methods
- Webhook support
- Rate limits and usage restrictions
- Customer references with similar Webflow implementations
Custom API integration offers maximum control but requires significant resources.
Webflow API configuration
Configure the ecommerce_new_order webhook to send order data to your serverless endpoint at checkout. This webhook delivers shipping addresses, line items, and customer information without polling.
Authenticate using Site Tokens for single-site integrations, OAuth 2.0 for multi-site applications, or Workspace Tokens for workspace-level access and store credentials in environment variables. Make sure that you use Webflow's v2 API for all implementations. See the v1 deprecation notice for migration details.
Key Webflow endpoints include the following:
- GET /v2/sites/:site_id/orders/:order_id — retrieve order details
- PATCH /v2/sites/:site_id/orders/:order_id/fulfill — update fulfillment status
- Write tracking data:
shippingProvider,shippingTracking,shippingTrackingURL
Serverless deployment
Deploy middleware on platforms that Webflow developers commonly use. These include the following:
- Vercel Functions offers single-command deployment with GitHub integration
- Netlify Functions provides a straightforward setup with 125,000 free invocations monthly
- Cloudflare Workers provides edge computing for global applications.
Implementation pattern
Structure code in three layers:
- Layer 1 (Webhook receiver) validates webhook signatures using HMAC SHA256, extracts order data, and triggers async processing.
- Layer 2 (Shipping API integration) calls shipping provider endpoints for rates or labels. Store API credentials separately in environment variables. Implement retry logic with exponential backoff to meet Webflow's 60–120 requests per minute limit.
- Layer 3 (Webflow update) writes tracking information back via the Fulfill Order API, maintaining platform synchronization.
What you can build
You can build the following with Shipping IO once integrated with Webflow. However, the integrations require API documentation from Shipping IO.
- Automated order fulfillment workflow: Serverless middleware receives Webflow orders via webhooks, sends data to Shipping IO for label generation, and writes tracking numbers back automatically.
- Real-time shipping rate calculator: Display carrier rates at checkout based on destination and cart weight. Call Shipping IO's rate API from serverless functions, and inject rates via a custom code embed.
- Custom shipping rules engine: Apply policies such as free-shipping thresholds, dimensional-weight calculations, and handling fees.
- Multi-carrier tracking consolidation dashboard: Build a custom Webflow CMS page that aggregates shipment status across all carriers using Shipping IO's unified tracking API.
Frequently asked questions
No. Shipping IO has no listing in the Webflow Apps Marketplace.
Netlify Functions and Vercel Functions (quickstart) provide straightforward GitHub-integrated deployment. Cloudflare Workers (Webflow guide), integrated with Webflow Cloud, offers edge computing with the lowest latency. Choose based on expertise: GitHub-familiar teams prefer Vercel/Netlify; global stores prefer Cloudflare.
Netlify Functions offers automatic function discovery and environment variable management.
Cloudflare Workers provides edge capabilities. However, Vercel/Netlify are generally more accessible for shipping integrations. Use Cloudflare when edge computing and multi-region distribution are priorities.
AWS Lambda provides enterprise-scale capabilities requiring IAM, API Gateway, and CloudWatch. Use only when AWS integration is critical, you have DevOps resources, or enterprise monitoring is mandatory.
All platforms support consistent security patterns: never expose tokens client-side, store credentials in environment variables, and validate webhook signatures.
Webflow supports two primary methods. All requests use bearer token format.
Site tokens work for single-site integrations. Treat as passwords with minimal scopes and regular rotation.
Workspace tokens enable workspace-level access via OAuth 2.0. Use for applications managing multiple Webflow properties.
OAuth 2.0 supports multi-user applications, including authorization code exchange and token requests.
Store credentials in environment variables, implement rotation schedules, use minimal scopes. Validate
x-webflow-signaturecryptographically and checkx-webflow-timestampto prevent replay attacks.
Description
Shipping IO operates ShipSimply, a multi-carrier shipping platform for e-commerce brands and third-party logistics providers. The platform offers multi-carrier automation with dedicated account management. API documentation requires direct vendor engagement.
This integration page is provided for informational and convenience purposes only.
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