Shops and shipping
Connect Stamps.com to Hypamoon
Possible, with help from Stamps.com. The API is documented, but you cannot just create a key: access goes through Stamps.com first.
PossibleThe check
Three questions about the API of Stamps.com, answered from its own docs.
- Public API docs
- Yes. Developer site with REST and SOAP API guides, a sandbox and a WSDL tool. Read the docs
- A key you create yourself
- No. You fill in a developer registration form and receive credentials and an integration ID from Stamps.com. developer.stamps.com
- Versions or a changelog
- Not confirmed.
- How it signs in
- Not confirmed from the pages that could be opened.
- Webhooks
- Not confirmed.
- Hosting
- Cloud
- Condition
- Register through the Stamps.com developer registration form to get an integration ID; you also need a Stamps.com account for live postage.
What you can build
Print USPS postage and labels from your own order screen without logging in to Stamps.com.
Your chat writes it as a Hypamoon adapter from the docs above. Reading starts after you click Allow in the portal, and every write waits for your approval, one call at a time. How adapters work
Try it in your chat
First get access from Stamps.com. Then fill in what to read and write, and send it.
Build the Hypamoon recipe build-an-adapter for Stamps.com. API docs: https://developer.stamps.com/. Read: [what]. Write: [what, or nothing].
In Claude, or another chat with the full Hypamoon connection; adapters are not in ChatGPT yet. You paste the key in the portal, never in the chat. The full recipe
Sources
Checked on 7 November 2026.
Stamps.com is a name of its owner, used here only to describe the software. This page is not an official integration and Hypamoon has no partnership with Stamps.com. Found something that changed? Tell us at support.
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Tool not listed? Ask the chat to check its API.
The same three checks work for any software. Your chat reads the vendor's own docs and tells you what it found.
Check if [software] has an open API that a Hypamoon adapter can use: public API docs, a key or token I can create myself without asking the vendor, and versions or a changelog. Link the pages you used.
Fill in the name of your software. Checking needs no connection to Hypamoon.
Ready to connect Stamps.com?
Connect your chat once, then ask it to build the adapter.
Works in Claude, ChatGPT and Copilot. Add to Claude Add to ChatGPT 
Add to Copilot