PostAgent
x402Grade BLast checked 2 hours ago
POST https://api.postagent.sh/v1/print
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.
Price$1.24per page fetched · paid in USD on Base
Uptime100%
4/4 probes · 1075.5 ms
Score71Grade B
Paid usage, 30 days1payers · 1 calls
How to buy
This endpoint takes pay-per-call payments over x402. Call it once without paying to see its live price; any x402 client then pays and retries automatically.
curl -i -X POST "https://api.postagent.sh/v1/print"
# HTTP/1.1 402 Payment Required: price, asset and payTo are in the responseRecent checks
| Checked (UTC) | Result | Status | Time | Live price |
|---|---|---|---|---|
| 2026-10-11 11:01 | Valid 402 | 402 | 1023 ms | $1.24 |
| 2026-10-11 06:30 | Valid 402 | 402 | 967 ms | $1.24 |
| 2026-10-11 02:15 | Valid 402 | 402 | 1128 ms | $1.24 |
| 2026-10-10 21:45 | Valid 402 | 402 | 1188 ms | $1.24 |
Receipts
No test purchases yet. Graded test purchases are next on our list; until then every number here comes from unpaid checks.
What a check proves