the402 endpoint detail

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orcpin.dev v1 wash-sale-status

https://orcpin.dev/v1/wash-sale-status

answers 402

Wash-sale preflight for trading agents: evaluates a proposed buy against the operator's realized-loss sales across ALL accounts (caller-supplied) for the 61-day IRC ยง1091 window โ€” would_trigger with the matched loss sales, an honest clear, or insufficient_data naming the gap. Tax status with the rule cited, never advisability; a disallowed loss defers, not forfeits. Exact-ticker v1; nothing stored

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.05
Network
base
Pay to
0x8B1CF12e7efe6AEA59cD1124eBbe7709E3Ac6085
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
176 ms
Payment options
1 usable of 1
Last checked
2026-08-15T14:24:20.138Z (3d ago)
Category
data

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Forcpin.dev%2Fv1%2Fwash-sale-status"