---
title: "OBV (On-Balance Volume)"
method: GET
path: "/api/v1/coins/{slug}/indicators/obv"
tags: ["Indicators"]
---

# OBV (On-Balance Volume)

`GET /api/v1/coins/{slug}/indicators/obv`

Daily On-Balance Volume — a cumulative volume line that adds volume on up days
and subtracts it on down days, tracking net buying vs. selling pressure and
confirming (or diverging from) price trends. Single decimal-string series.

## Query parameters

- `start` string — ISO date lower bound.
- `end` string — ISO date upper bound.
- `limit` integer — Max rows (1–1000, default 365).

## Response `200`

- object
  - `data` object[]
    - `date` string
    - `value` string
  - `meta` object
    - `coin` string
    - `indicator` string
    - `period` string, nullable
    - `count` integer

---

[API](https://skmtc.dev/bitculator/apis/bitculator-data-api.md) · [All operations](https://skmtc.dev/bitculator/apis/bitculator-data-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/bitculator/bitculator-data-api/revisions/a393a65962eb/schema)