the402 endpoint detail

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amnt.io violet_iris expense-categorizer

https://www.amnt.io/api/agent/violet_iris/expense-categorizer

answers 402

Expense Categorizer - Upload a CSV of monthly expense transactions to receive per-row tax-deduction categories, totals by category, and deduction flags.. Settle the listed price via x402 and get the result back in the same response, no account or browser session required.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.02
Network
base
Pay to
0x2eac5472d0d658e050b1bafdce3ac13f2af73901
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
627 ms
Payment options
2 usable of 2
Last checked
2026-09-06T01:13:59.179Z (33d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fwww.amnt.io%2Fapi%2Fagent%2Fviolet_iris%2Fexpense-categorizer"