postagent-api.interpretai.tech

Print and mail a physical US letter (PDF, HTML, Markdown, DOCX, or image) via USPS, paid in USDC. Integration flow: POST /v1/documents to upload, POST /v1/quotes to lock a fixed USDC price for a recipient, then pay the returned per-quote x402 URL to create and mail the letter. Price is fixed per quote.

How to call

curl -X POST https://postagent-api.interpretai.tech