Multi carrier rate shopping, label creation, and real time tracking in a single API. No subscription. No per label markup. No BYOA surcharge. Just ship.
Why pay $99 a month for API access when you can get it for free?
Create an API key and start shipping. No credit card required to get started. No monthly minimums.
You pay the carrier rate. We don't add a cent on top. Platform labels and BYOA labels both cost you what the carrier charges.
Connect your UPS or FedEx account. Use your own negotiated rates at no surcharge. Or use our platform rates.
One API, all carriers, every capability. Build a complete shipping integration in an afternoon.
Compare rates across USPS, UPS, and FedEx in a single request. Delivery estimates on every quote.
POST /v1/ratesBuy a label from any quoted rate. Get a tracking number, label PDF/PNG/ZPL, and delivery ETA instantly.
POST /v1/labelsTrack any shipment across any carrier. Get status updates, location events, and delivery confirmation.
POST /v1/trackersValidate and normalize addresses before shipping. Detect residential vs. commercial for accurate surcharges.
POST /v1/addresses/validateCreate labels in bulk with a single batch request. Async processing with progress tracking and webhook notifications.
POST /v1/batchesHMAC-signed webhook delivery for label.created events with automatic retries. Build event-driven workflows.
label.createdEvery competitor charges for what we give away.
| Unleashed | ShipStation | Shippo | |
|---|---|---|---|
| API Access | Free | $99/mo | $10/mo+ |
| Per Label Fee | $0 | Included | $0.05+ |
| BYOA Surcharge | $0 | N/A | $0.05 |
| Multi Carrier | ✅ | ✅ | ✅ |
| Sandbox Mode | ✅ | ✅ | ✅ |
| Batch Labels | ✅ | ✅ | ✅ |
Simple integration. Powerful capabilities.
Sign up, create a key from your dashboard, and start making requests. Test with sandbox keys first.
npm i @packageretriever/sdk or pip install packageretriever. TypeScript types included.
Fetch rates, pick the cheapest, buy a label. Three API calls from zero to tracking number.
This is a live sandbox. Click Run on each step and watch real API responses come back. No signup required.
{
"name": "Demo Customer",
"street1": "123 E 6th St",
"city": "Austin",
"state": "TX",
"zip": "78701",
"country": "US"
}Don't want to spend time coding? Rookie can assess your codebase, create a new branch, and write the entire shipping integration, rate shopping, label creation, tracking, all of it. No other shipping API does the lifting for you like Rookie.
Point Rookie at your repo and it handles everything, analyzes your codebase, creates a branch, and writes production ready integration code tailored to your stack.
Full REST API with everything you need to build a custom integration from scratch. Complete control over every request.
The Unleashed MCP server lets Claude, Cursor, Windsurf, GitHub Copilot, and any other MCP compatible tool interact with the shipping API directly. No integration code needed.
Sign up for a free Package Retriever account and create an API key from your dashboard. Use a pr_test_ key to start in sandbox mode.
Add the following to your MCP configuration. The location depends on your tool:
Claude Code / Cursor / Windsurf
{
"mcpServers": {
"packageretriever": {
"url": "https://packageretriever.com/api/unleashed/mcp",
"headers": {
"Authorization": "Bearer pr_test_your_api_key"
}
}
}
}GitHub Copilot (VS Code settings.json)
"github.copilot.chat.mcpServers": {
"packageretriever": {
"url": "https://packageretriever.com/api/unleashed/mcp",
"headers": {
"Authorization": "Bearer pr_test_your_api_key"
}
}
}Type naturally. Your AI tool now has access to 8 shipping tools:
validate_addressget_shipping_ratesbuy_shipping_labeltrack_shipmentget_labelvoid_labelget_wallet_balancelist_carrier_accountsWhen you are ready for production, swap your pr_test_ key for a pr_live_ key. Same config, same tools, real labels.
Create your API key, explore the docs, and start building your shipping integration today.