Stamps.com USPS Shipping API

Can I get shipping rates with the Stamps.com USPS Shipping API?

Yes. Use the POST /rates endpoint. The API returns structured JSON responses that agents can parse and act on directly.

What are the rate limits for the Stamps.com USPS Shipping API?

Rate limits are not specified in the OpenAPI spec. Check the vendor documentation for current limits. Through Jentic, rate limiting is handled automatically with retry logic built into the execution layer.

How do I get shipping rates through Jentic?

Install the Jentic SDK with pip install jentic, authenticate through Jentic One, the self-hosted execution layer, then search for 'get shipping rates'. Jentic returns the matching Stamps.com USPS Shipping API operation with its input schema. Load the schema and execute the call - credentials are injected automatically.

How many endpoints does the Stamps.com USPS Shipping API have?

The Stamps.com USPS Shipping API exposes 11 endpoints covering account, addresses, insurance operations.

Can I limit what my agent is allowed to do with the Stamps.com USPS Shipping API?

Yes. Jentic One runs self-hosted, so your own rules decide which of the API's operations your agent may call and which credentials it may use. You can allow read and status calls such as GET /labels/{labelId} and GET /tracking/{trackingNumber} while withholding write operations, and because the label id sits in the URL path you can pin the agent to a specific label. Destructive operations like POST /labels/{labelId}/void or POST /pickups are excluded unless you explicitly add them.