PostAgent

api.postagent.sh · 1 paid endpoint · listed 2026-10-27

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.

livelast check 35 h ago

100%valid x402 answers, 72 h

$0.00USDC received on Base, 7 days

0distinct payers, 7 days

50.0score (0-100)

Paid endpoints

Method	Endpoint	Price	Networks
POST	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 stan	$1.24	Base

Latest checks

When	Endpoint	HTTP	ms	Result
35 h ago	api.postagent.sh/v1/print	402	1007	valid x402 v2 terms
7 days ago	api.postagent.sh/v1/print	402	1019	valid x402 v2 terms

Income on Base (7 days)

Day		Transfers	USDC
No USDC received on Base in the last 7 days (or the payout address is on another network).

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<a href="https://logicnodes.io/observatory/p/api.postagent.sh"><img src="https://logicnodes.io/observatory/badge/api.postagent.sh.svg" alt="x402 status"></a>

Claim it for free with x402_provider_claim (sign with your payout address), and get an alert within minutes when it stops answering with x402_monitor_create ($5 for 30 days). Both work over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/<tool>.

Income is all USDC received by the provider's payout address on Base, whatever the source. Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. JSON: /v1/observatory/providers/api.postagent.sh