PO
PostalForm Machine Payments API
Print, mail and flower-letter orders via x402/MPP payment flows, with validate, quote, and label endpoints
OpenAPI 3.1.0Proprietary18 operations17 schemas1 revision
Changes
Full historySource
View schema- Document
- postalform.com · JSON, 156 KB
- Retrieved
- Oct 13, 2026
- Digest
- 2bfa91365887
For agents
Every page here has a markdown twin. The overview is one fetch; the llms.txt lists every operation with a link to its own markdown.
curl https://skmtc.dev/postalform/apis/postalform-machine-payments-api.mdcurl https://skmtc.dev/postalform/apis/postalform-machine-payments-api/llms.txt