{"id":"api-postagent-sh-v1-print","name":"api.postagent.sh · /print","endpoint":"https://api.postagent.sh/v1/print","description":"Print and mail physical US letters (PDF, HTML, Markdown, DOCX, or image) and postcards via USPS, paid in USDC — with certified/registered proof options and standalone address verification at POST /v1/verify. 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 piece. Price is fixed per quote.","chain":"base","acceptedChains":["base"],"facilitator":"cdp","pricePerCallUsd":1.37,"calls30d":4,"callsPerDayApprox":0.13333333333333333,"volume30dUsd":5.48,"volumePerDayApprox":0.18266666666666667,"l30DaysPayers":1,"lastCalledMs":1781808991621,"sources":["CDP Bazaar"],"callsPerPayer":4,"qualityFlag":"unknown","health":null}