api.postagent.sh

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.

54
reliability

Reliability & health

Uptime and response time from our own unpaid probes, plus the reliability score built from them.

7 days 30 days

Uptime

100.0% avg
0% 50% 100% Jul 23Aug 2Aug 11Aug 21

Response time

p50 1007ms · p95 5553ms
0ms 2900ms 5800ms Jul 23Aug 2Aug 11Aug 21
Data table
Reliability history per time bucket over the last 30 days (daily).
Bucket Uptime Probes Response time
7/23/2026, 12:00:00 AM 100% 1 827ms
7/24/2026, 12:00:00 AM 100% 1 899ms
7/25/2026, 12:00:00 AM 100% 1 872ms
7/26/2026, 12:00:00 AM 100% 1 902ms
7/27/2026, 12:00:00 AM 100% 1 903ms
7/28/2026, 12:00:00 AM 100% 1 863ms
7/29/2026, 12:00:00 AM 100% 1 405ms
7/30/2026, 12:00:00 AM 100% 1 896ms
7/31/2026, 12:00:00 AM 100% 1 850ms
8/1/2026, 12:00:00 AM 100% 1 892ms
8/2/2026, 12:00:00 AM 100% 1 879ms
8/3/2026, 12:00:00 AM 100% 1 5788ms
8/4/2026, 12:00:00 AM 100% 1 4697ms
8/5/2026, 12:00:00 AM 100% 1 3431ms
8/6/2026, 12:00:00 AM 100% 1 5609ms
8/7/2026, 12:00:00 AM 100% 1 4221ms
8/8/2026, 12:00:00 AM 100% 1 3514ms
8/9/2026, 12:00:00 AM 100% 1 4176ms
8/10/2026, 12:00:00 AM 100% 1 916ms
8/11/2026, 12:00:00 AM 100% 1 1004ms
8/12/2026, 12:00:00 AM 100% 1 978ms
8/13/2026, 12:00:00 AM 100% 1 1031ms
8/14/2026, 12:00:00 AM 100% 1 1009ms
8/15/2026, 12:00:00 AM 100% 1 1005ms
8/16/2026, 12:00:00 AM 100% 1 1019ms
8/17/2026, 12:00:00 AM 100% 1 1106ms
8/18/2026, 12:00:00 AM 100% 1 829ms
8/19/2026, 12:00:00 AM 100% 20 830ms
8/20/2026, 12:00:00 AM 100% 21 1028ms
8/21/2026, 12:00:00 AM 100% 1 1013ms
54
Composite reliability — the weighted average of the dimensions below, on a 0–100 scale.
Availability
100

How often it was reachable when we probed it (weight 35%).

Latency
74

How quickly it answers when it is up — fast scores high (weight 20%).

Security
100

Whether it serves over working TLS / https (weight 15%).

Transparency
36

Whether the operator disclosed what it does — description, schema, identity (weight 15%).

Activity
4

Observed on-chain payments to this endpoint's wallet — transactions, volume, and distinct paying wallets over the last month (weight 15%; not yet measured when we have not seen its wallet settle).

Confidence 100% — how much probe evidence backs this score. A thin history is flagged, not hidden.

See the scoring methodology for exactly how each number is computed.

Payment

Currencies
USDC
Networks
base
Facilitator
unknown
SDK
unknown

Operator

Company
inferred — unknown
Jurisdiction
—
Registrar
—
Domain registered
—
Hosting network
GOOGLE
Hosting country
—

Operator context is derived from public RDAP/TLS records and unverified. Company and country are only available for endpoints that publish them (an OV/EV TLS certificate or a non-redacted domain record); most endpoints are CDN-fronted and disclose neither.

On-chain activity (base)

49.19
USDC received
21
payments
1
unique wallets

Settlement totals · last payment 6/25/2026