---
title: "Resolve the effective price for an item + account (company tier → base price) on a given date. <br>`asOf` is required, and is a System.DateOnly. It used to be an optional System.DateTime, which made this the one place in the feature where the answer depended on where the question was asked from — twice over. Omitted, the server substituted its own UTC date, so a caller in UTC+3 asking at 01:00 local was answered for the previous day. Supplied with an offset, query-string binding converted it to universal time, so `2026-08-01T00:00:00+03:00` resolved prices as of `2026-07-31T21:00Z` — again the wrong calendar day, and again only east of UTC. A calendar date has no instant to convert, and requiring it leaves the caller as the only party who decides what \"today\" means."
method: GET
path: "/v1/Items/{itemId}/effective-price"
tags: ["ItemPrices"]
---

# Resolve the effective price for an item + account (company tier → base price) on a given date. <br>\`asOf\` is required, and is a System.DateOnly. It used to be an optional System.DateTime, which made this the one place in the feature where the answer depended on where the question was asked from — twice over. Omitted, the server substituted its own UTC date, so a caller in UTC+3 asking at 01:00 local was answered for the previous day. Supplied with an offset, query-string binding converted it to universal time, so \`2026-08-01T00:00:00+03:00\` resolved prices as of \`2026-07-31T21:00Z\` — again the wrong calendar day, and again only east of UTC. A calendar date has no instant to convert, and requiring it leaves the caller as the only party who decides what "today" means.

`GET /v1/Items/{itemId}/effective-price`

## Path parameters

- `itemId` integer, required

## Query parameters

- `accountId` integer, required
- `type` 0 | 1, required
- `asOf` string, date, required
- `quantity` integer

## Response `200`

Success

- EffectiveItemPriceResponse
  - `price` number, double
  - `unitId` string, nullable
  - `quantity` integer
  - `source` 0 | 1 | 2
  - `sourceId` integer, nullable
  - `validUntil` string, date-time, nullable

## Other responses

- `400` — Bad Request
- `401` — Unauthorized
- `403` — Forbidden
- `404` — Not Found

## Changes

- **2026-08-27** `61263b2302a0` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/invendor/apis/io-commonapi/changes/v1/Items/:itemId/effective-price/get.md)

---

[API](https://skmtc.dev/invendor/apis/io-commonapi.md) · [All operations](https://skmtc.dev/invendor/apis/io-commonapi/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/invendor/io-commonapi/revisions/61263b2302a0/schema)