# Instrument prices

Time series of price observations for one instrument.

## Endpoints

GET /v3/instruments/:id/prices
  Fetch the price history.

POST /v3/instruments/:id/prices
  Append one price observation.

PATCH /v3/prices/:id
  Update a specific price by its own ID.

DELETE /v3/prices/:id
  Delete a specific price by its own ID.

## Path params (collection endpoints)

  id (required) — Instrument identifier (Mongo ObjectID).

## Attributes (`type: price`)

  date     (string, ISO 8601, required)  — Observation date (end-of-day).
  value    (number, required)            — Price expressed in the instrument's currency.
  provider (string, read-only)           — Source of the price. "client" for prices the user posts;
                                           the system also injects prices from market data feeds.