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orcpin.dev v1 holding-period
https://orcpin.dev/v1/holding-period
answers 402
Trade-lot holding-period and realized-gain calculator for trading agents: per-lot days held, the exact date each lot's gain character turns long-term, and FIFO / specific-identification allocation of a proposed sell with realized gain per lot and per-character totals. Deterministic arithmetic on caller-supplied lots with the published threshold cited (IRC §1222: held more than one year) — counts,
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
- 0x8B1CF12e7efe6AEA59cD1124eBbe7709E3Ac6085
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 165 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-15T14:22:29.245Z (2d ago)
- Category
- other
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Forcpin.dev%2Fv1%2Fholding-period"