Marketplace · API · x402

mailpulse.theaslangroupllc.com/api/letters/ltr_6efe036558965c36

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.

Endpointhttps://mailpulse.theaslangroupllc.com/api/letters/ltr_6efe036558965c36
Trust✓ Verified callable · 100% uptime over 1 checks · ~262 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc
methodPOST
last updated2026-10-15T07:21:37.728Z

Use it

Call it (an x402 client pays automatically)

curl -i https://mailpulse.theaslangroupllc.com/api/letters/ltr_6efe036558965c36
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-23421064e1d64ddb

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}