V2 API: End-to-End Order Automation
Connect with your ShipStation V1 API key and secret. Add the optional V2 token for batches, rates and extra carrier accounts.
V2 API Capabilities
Built for high-volume operations
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Batch Order Processing
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Process hundreds or thousands of orders in a single run. Order updates go through your ShipStation V1 key, and rate quotes use V2 when you add a token, so large runs finish fast and stay within API rate limits — perfect for scheduled overnight processing or high-volume stores.
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End-to-End Order Pipeline
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Complete order processing pipelines: validate → optimize boxes → apply rules → rate shop → update ShipStation. Run them on a schedule or on demand, with dry-run previews before anything is written and per-order verification after.
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Real-Time Webhooks
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ShipStation webhooks trigger your automation the moment new orders arrive. Rules run per-order in real time, and an automatic reconciliation sweep catches anything a missed webhook would leave behind.
- Orders processed as they arrive
- Webhook-triggered rule groups
- Automatic reconciliation sweeps
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Enterprise-Grade Performance
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Built for high-throughput operations. Batched API calls, asynchronous background processing, and self-pacing rate-limit handling keep large workloads moving without tripping ShipStation's API limits.
Use Cases
Build powerful integrations
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Send Orders to Your Other Tools
Rules can send full order data to Zapier, n8n or any webhook URL, so your warehouse or ERP can pick up each order after your rules run.
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Scheduled Processing
Run overnight batch jobs to process all orders. Wake up to optimized, rule-applied orders ready for fulfillment.
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Custom Workflows
Build custom logic on top of ShipExtension. Trigger Slack notifications, update CRMs, or integrate with any system via webhooks.
Works with your ShipStation API keys
ShipExtension connects with your ShipStation V1 API key and secret. Add the optional V2 token for batches, rates and extra carrier accounts.
Questions about the API? Contact us
Your first workflow
Technical details
- The recurring task
- A repeatable order workflow needs to be invoked from your existing tooling. Use the application's authenticated endpoints for supported calculations and executions.
- Representative input and result
- The packaging calculate endpoint accepts items and returns calculation data. Execution and apply endpoints are separate operations that can change live state.
- Information needed
- Account authentication, exact request schema, representative redacted input and the intended read or write operation.
- Verification and limitations
- Verify response errors and calculated output before calling an apply or execution endpoint. Arrange assisted setup for operations without a complete safe preview.
- ShipStation API scope
- The ShipExtension API is separate from ShipStation V1/V2. Underlying ShipStation operations still require the appropriate credentials and supported action.
- Subscription and setup
- Automate: $179/month for up to 2,000 orders. Optimize: $499/month for up to 10,000 orders. Packing slips are a separate add-on. Initial setup help is available; custom implementation scope is confirmed separately.
Total processing includes fetching orders and any API operations. Time varies with batch size, actions and API pacing; no fixed completion time is guaranteed.