Discover / mailpulse.theaslangroupllc.com

MailPulse

■ Challenge detected

Check the status and tracking of a physical letter previously sent via POST /api/letters. Returns render status, expected delivery date, and (for certified mail) the USPS tracking number.

Listed price
$0.005
Challenge detected
10 of the last 10 checks
Median response
84 ms
Last checked
17 Oct, 07:50 UTC
In our index since
26 Sept 2026

Endpoint

curl -i https://mailpulse.theaslangroupllc.com/api/letters/ltr_1a9b185b1c4ee035
# 402 Payment Required: pay with an x402 client (USD1 on Algorand),
# then send the same request again with the payment attached.
2 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://mailpulse.theaslangroupllc.com/api/letters

  • POST/ltr_1a9b185b1c4ee035No price listedCheck the status and tracking of a physical letter previously sent via POST /api/letters. Returns render status, expected delivery date, and (for certified mail) the USPS tracking number.
  • POST/ltr_6efe036558965c36No price listedCheck the status and tracking of a physical letter previously sent via POST /api/letters. Returns render status, expected delivery date, and (for certified mail) the USPS tracking number.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 2 of 2 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/mailpulse.theaslangroupllc.com

Recent checks

28 Sept 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.17 Oct 2026
All 10 checks
When (UTC)ResultHTTPResponse
17 Oct, 07:50 UTCChallenge detected40295ms
15 Oct, 23:42 UTCChallenge detected40271ms
14 Oct, 19:26 UTCChallenge detected40273ms
13 Oct, 00:46 UTCChallenge detected402193ms
11 Oct, 06:02 UTCChallenge detected40263ms
9 Oct, 18:38 UTCChallenge detected40272ms
8 Oct, 15:35 UTCChallenge detected402174ms
7 Oct, 09:33 UTCChallenge detected402102ms
6 Oct, 09:33 UTCChallenge detected402168ms
28 Sept, 05:02 UTCChallenge detected40263ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 17 Oct, 07:50 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for MailPulse?

Its listed price is $0.005.

What payment terms does MailPulse advertise?

The listing advertises x402, Algorand, Arbitrum, Base, BNB Chain, EVM chain 143, EVM chain 480, EVM chain 999, Polygon, Solana, X Layer, Xrpl, USD1, USDC and XRP. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is MailPulse listed?

In x402 Bazaar. Superstables first indexed it on 26 Sept 2026.

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