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% Fri 3 AMSun 9 AMTue 5 PMFri 12 AM

Response time

p50 999ms · p95 1099ms
0ms 750ms 1500ms Fri 3 AMSun 9 AMTue 5 PMFri 12 AM
Data table
Reliability history per time bucket over the last 7 days (hourly).
Bucket Uptime Probes Response time
8/14/2026, 3:00:00 AM 100% 1 1403ms
8/14/2026, 4:00:00 AM 100% 1 988ms
8/14/2026, 5:00:00 AM 100% 1 1134ms
8/14/2026, 6:00:00 AM 100% 1 1020ms
8/14/2026, 7:00:00 AM 100% 1 1080ms
8/14/2026, 9:00:00 AM 100% 1 562ms
8/14/2026, 10:00:00 AM 100% 1 1044ms
8/14/2026, 11:00:00 AM 100% 1 1016ms
8/14/2026, 12:00:00 PM 100% 1 1046ms
8/14/2026, 1:00:00 PM 100% 1 995ms
8/14/2026, 3:00:00 PM 100% 1 955ms
8/14/2026, 4:00:00 PM 100% 1 936ms
8/14/2026, 5:00:00 PM 100% 1 1102ms
8/14/2026, 6:00:00 PM 100% 1 1006ms
8/14/2026, 7:00:00 PM 100% 1 1056ms
8/14/2026, 8:00:00 PM 100% 1 1007ms
8/14/2026, 10:00:00 PM 100% 1 968ms
8/14/2026, 11:00:00 PM 100% 1 1009ms
8/15/2026, 12:00:00 AM 100% 1 980ms
8/15/2026, 1:00:00 AM 100% 1 985ms
8/15/2026, 2:00:00 AM 100% 1 956ms
8/15/2026, 3:00:00 AM 100% 1 979ms
8/15/2026, 4:00:00 AM 100% 1 1024ms
8/15/2026, 6:00:00 AM 100% 1 998ms
8/15/2026, 7:00:00 AM 100% 1 1003ms
8/15/2026, 8:00:00 AM 100% 1 999ms
8/15/2026, 9:00:00 AM 100% 1 1004ms
8/15/2026, 10:00:00 AM 100% 1 1032ms
8/15/2026, 11:00:00 AM 100% 1 1033ms
8/15/2026, 12:00:00 PM 100% 1 454ms
8/15/2026, 2:00:00 PM 100% 1 988ms
8/15/2026, 3:00:00 PM 100% 1 988ms
8/15/2026, 4:00:00 PM 100% 1 1082ms
8/15/2026, 5:00:00 PM 100% 1 1030ms
8/15/2026, 6:00:00 PM 100% 1 529ms
8/15/2026, 7:00:00 PM 100% 1 1068ms
8/15/2026, 9:00:00 PM 100% 1 951ms
8/15/2026, 10:00:00 PM 100% 1 1052ms
8/15/2026, 11:00:00 PM 100% 1 1005ms
8/16/2026, 12:00:00 AM 100% 1 1009ms
8/16/2026, 1:00:00 AM 100% 1 918ms
8/16/2026, 2:00:00 AM 100% 1 992ms
8/16/2026, 4:00:00 AM 100% 1 988ms
8/16/2026, 5:00:00 AM 100% 1 1049ms
8/16/2026, 6:00:00 AM 100% 1 962ms
8/16/2026, 7:00:00 AM 100% 1 1019ms
8/16/2026, 8:00:00 AM 100% 1 990ms
8/16/2026, 9:00:00 AM 100% 1 990ms
8/16/2026, 11:00:00 AM 100% 1 1026ms
8/16/2026, 12:00:00 PM 100% 1 1016ms
8/16/2026, 1:00:00 PM 100% 1 1083ms
8/16/2026, 2:00:00 PM 100% 1 934ms
8/16/2026, 3:00:00 PM 100% 1 1002ms
8/16/2026, 4:00:00 PM 100% 1 1000ms
8/16/2026, 6:00:00 PM 100% 1 993ms
8/16/2026, 7:00:00 PM 100% 1 924ms
8/16/2026, 8:00:00 PM 100% 1 1008ms
8/16/2026, 9:00:00 PM 100% 1 1002ms
8/16/2026, 10:00:00 PM 100% 1 1017ms
8/16/2026, 11:00:00 PM 100% 1 1019ms
8/17/2026, 1:00:00 AM 100% 1 1002ms
8/17/2026, 2:00:00 AM 100% 1 1053ms
8/17/2026, 3:00:00 AM 100% 1 979ms
8/17/2026, 4:00:00 AM 100% 1 1010ms
8/17/2026, 5:00:00 AM 100% 1 1036ms
8/17/2026, 6:00:00 AM 100% 1 1085ms
8/17/2026, 8:00:00 AM 100% 1 960ms
8/17/2026, 9:00:00 AM 100% 1 1016ms
8/17/2026, 10:00:00 AM 100% 1 944ms
8/17/2026, 11:00:00 AM 100% 1 1043ms
8/17/2026, 12:00:00 PM 100% 1 957ms
8/17/2026, 1:00:00 PM 100% 1 904ms
8/17/2026, 3:00:00 PM 100% 1 1040ms
8/17/2026, 4:00:00 PM 100% 1 1059ms
8/17/2026, 5:00:00 PM 100% 1 967ms
8/17/2026, 6:00:00 PM 100% 1 962ms
8/17/2026, 7:00:00 PM 100% 1 982ms
8/17/2026, 8:00:00 PM 100% 1 1119ms
8/17/2026, 10:00:00 PM 100% 1 1007ms
8/17/2026, 11:00:00 PM 100% 1 1106ms
8/18/2026, 12:00:00 AM 100% 1 1064ms
8/18/2026, 1:00:00 AM 100% 1 1035ms
8/18/2026, 2:00:00 AM 100% 1 1107ms
8/18/2026, 3:00:00 AM 100% 1 1049ms
8/18/2026, 5:00:00 AM 100% 1 1030ms
8/18/2026, 6:00:00 AM 100% 1 1069ms
8/18/2026, 7:00:00 AM 100% 1 1119ms
8/18/2026, 8:00:00 AM 100% 1 996ms
8/18/2026, 9:00:00 AM 100% 1 552ms
8/18/2026, 10:00:00 AM 100% 1 962ms
8/18/2026, 12:00:00 PM 100% 1 1083ms
8/18/2026, 1:00:00 PM 100% 1 1045ms
8/18/2026, 2:00:00 PM 100% 1 830ms
8/18/2026, 3:00:00 PM 100% 1 862ms
8/18/2026, 4:00:00 PM 100% 1 790ms
8/18/2026, 5:00:00 PM 100% 1 776ms
8/18/2026, 7:00:00 PM 100% 1 824ms
8/18/2026, 8:00:00 PM 100% 1 815ms
8/18/2026, 9:00:00 PM 100% 1 817ms
8/18/2026, 10:00:00 PM 100% 1 782ms
8/18/2026, 11:00:00 PM 100% 1 829ms
8/19/2026, 12:00:00 AM 100% 1 838ms
8/19/2026, 2:00:00 AM 100% 1 739ms
8/19/2026, 3:00:00 AM 100% 1 1016ms
8/19/2026, 4:00:00 AM 100% 1 820ms
8/19/2026, 5:00:00 AM 100% 1 882ms
8/19/2026, 6:00:00 AM 100% 1 813ms
8/19/2026, 7:00:00 AM 100% 1 822ms
8/19/2026, 9:00:00 AM 100% 1 854ms
8/19/2026, 10:00:00 AM 100% 1 805ms
8/19/2026, 11:00:00 AM 100% 1 806ms
8/19/2026, 12:00:00 PM 100% 1 794ms
8/19/2026, 1:00:00 PM 100% 1 819ms
8/19/2026, 2:00:00 PM 100% 1 815ms
8/19/2026, 4:00:00 PM 100% 1 878ms
8/19/2026, 5:00:00 PM 100% 1 860ms
8/19/2026, 6:00:00 PM 100% 1 428ms
8/19/2026, 7:00:00 PM 100% 1 880ms
8/19/2026, 8:00:00 PM 100% 1 1084ms
8/19/2026, 9:00:00 PM 100% 1 940ms
8/19/2026, 11:00:00 PM 100% 1 1024ms
8/20/2026, 12:00:00 AM 100% 1 465ms
8/20/2026, 1:00:00 AM 100% 1 1252ms
8/20/2026, 2:00:00 AM 100% 1 974ms
8/20/2026, 3:00:00 AM 100% 1 1015ms
8/20/2026, 4:00:00 AM 100% 1 1032ms
8/20/2026, 5:00:00 AM 100% 1 1049ms
8/20/2026, 7:00:00 AM 100% 1 1032ms
8/20/2026, 8:00:00 AM 100% 1 971ms
8/20/2026, 9:00:00 AM 100% 1 543ms
8/20/2026, 10:00:00 AM 100% 1 1053ms
8/20/2026, 11:00:00 AM 100% 1 994ms
8/20/2026, 12:00:00 PM 100% 1 1032ms
8/20/2026, 2:00:00 PM 100% 1 930ms
8/20/2026, 3:00:00 PM 100% 1 990ms
8/20/2026, 4:00:00 PM 100% 1 1081ms
8/20/2026, 6:00:00 PM 100% 1 1038ms
8/20/2026, 7:00:00 PM 100% 1 1028ms
8/20/2026, 8:00:00 PM 100% 1 1032ms
8/20/2026, 9:00:00 PM 100% 1 984ms
8/20/2026, 10:00:00 PM 100% 1 1074ms
8/20/2026, 11:00:00 PM 100% 1 1007ms
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