Bitcoin Price API • Live on Bitcoin mainnet

Get the Bitcoin price in one call.

Query the live Bitcoin spot price in USD by default or request a subset of 10 major fiat currencies. The response also includes market stats plus a fear_greed market snapshot when the upstream provider is available.

1 sat / call

GET /api/btc-price

Defaults to USD

market stats included

fear_greed included

What It Does

ArkAPI Bitcoin Price returns the live Bitcoin spot price rounded to the nearest cent. By default it returns USD, but you can request one currency or a subset of supported fiat codes through query parameters. It also includes market stats and a lightweight fear_greed market sentiment snapshot sourced from Alternative.me.

Default response returns btc_usd
Optional single-currency filter with ?currency=CAD
Optional subset filter with ?currencies=USD,EUR,CAD
Includes market_stats.rank, change_24h_pct, volume_24h_usd, and market_cap_usd
Includes fear_greed.value, fear_greed.label, and source metadata when the upstream is reachable
Supported set includes USD, EUR, GBP, CAD, JPY, AUD, CHF, CNY, HKD, and SGD

Behavior

This endpoint is intentionally lightweight. It uses GET, has no request body, and is designed for quick market context instead of historical charting or exchange-specific order data.

If no filter is passed, the response defaults to USD
Single-currency responses are compact and easy to consume in scripts
Subset responses work well for dashboards that need only a few fiat pairs
market_stats gives quick market context without needing a separate coin endpoint
fear_greed is best read as market sentiment, not price prediction
Values are rounded to the nearest cent for readability

Example Request

curl -H "Authorization: Bearer ak_your_token" "https://arkapi.dev/api/btc-price?currencies=USD,EUR,CAD" | jq

Use a funded token from the Fund page. No JSON body is required, and omitting query parameters returns USD by default.

Example Response

{
  "success": true,
  "data": {
    "btc_usd": "68406.28",
    "btc_eur": "59345.62",
    "btc_cad": "94738.48",
    "market_stats": {
      "rank": 1,
      "change_1h_pct": -0.42,
      "change_24h_pct": -3.18,
      "change_7d_pct": -7.64,
      "volume_24h_usd": 28123456789.12,
      "market_cap_usd": 1312345678901.45,
      "source": "Alternative.me"
    },
    "fear_greed": {
      "value": 8,
      "label": "extreme_fear",
      "source": "Alternative.me",
      "updated_at": "2026-03-30T00:00:00Z"
    },
    "updated_at": "2026-03-26T19:15:36Z"
  },
  "cost_sats": 1,
  "balance_remaining": 8637,
  "response_ms": 4,
  "endpoint": "/api/btc-price"
}

Good Uses

Agent decisions that need a quick BTC/USD reference
CLI checks before pricing or settlement logic
Lightweight BTC widgets and dashboards
Market-context enrichment for Bitcoin workflows

For broader platform usage, see the main docs and the live catalog.

Useful Query Patterns

/api/btc-price for the default USD price
/api/btc-price?currency=CAD for one fiat rate
/api/btc-price?currencies=USD,EUR,CAD for a compact multi-currency response