Developers

Free Crypto Data API

Public API endpoints for real-time crypto market data. No API key required. No rate limits for reasonable use. Built for developers, traders, and AI tools.

Base URL:https://cryptopulse24.com

Download OpenAPI 3.0 spec

Endpoints

GET/api/btc-price

Returns live Bitcoin price in USD.

Response (example)

{
  "price": 75247.32,
  "currency": "USD",
  "change24h": 1.23,
  "timestamp": "2026-05-05T12:00:00Z"
}

GET/api/fear-greed

Returns the current Crypto Fear & Greed Index (0-100).

Response (example)

{
  "value": 72,
  "classification": "Greed",
  "timestamp": "2026-05-05T00:00:00Z"
}

GET/api/market-summary

Returns a summary of global crypto market conditions.

Response (example)

{
  "totalMarketCap": "2.8T",
  "btcDominance": "54.2%",
  "totalVolume24h": "185B",
  "fearGreed": 72,
  "btcPrice": 75247.32,
  "ethPrice": 2315.58,
  "timestamp": "2026-05-05T12:00:00Z"
}

GET/api/top-coins

Returns the top 10 coins by market cap with live prices.

Response (example)

{
  "coins": [
    { "rank": 1, "symbol": "BTC", "name": "Bitcoin", "price": 75247.32, "change24h": 1.23 },
    { "rank": 2, "symbol": "ETH", "name": "Ethereum", "price": 2315.58, "change24h": 0.87 }
  ],
  "timestamp": "2026-05-05T12:00:00Z"
}

Usage Notes

• No API key required for public endpoints
• CORS enabled for all origins
• Cache headers included — data refreshes every 60 seconds
• Reasonable use policy: max 100 requests/minute per IP
• Data aggregated from major public market-data providers + exchange APIs

For AI Tools: These endpoints are also accessible at /.well-known/ai-plugin.json for ChatGPT plugins and other AI integrations.

Quick start — JavaScript / TypeScript

No SDK needed · uses fetch

// One-liner: BTC price
const r = await fetch("https://cryptopulse24.com/api/btc-price");
const { price, change24h } = await r.json();
console.log(`BTC: $${price} (${change24h}% 24h)`);

// Top 10 coins (typed)
interface Coin { rank: number; symbol: string; name: string; price: number; change24h: number; }
const res = await fetch("https://cryptopulse24.com/api/top-coins");
const { coins } = await res.json() as { coins: Coin[] };
const movers = coins.sort((a, b) => Math.abs(b.change24h) - Math.abs(a.change24h));

Quick start — Python

Just requests

import requests

r = requests.get("https://cryptopulse24.com/api/market-summary")
data = r.json()
print(f"BTC: ${data['btcPrice']} · Fear & Greed: {data['fearGreed']}")

# Fear & Greed history (sentiment signal)
fg = requests.get("https://cryptopulse24.com/api/fear-greed").json()
if fg["value"] < 25: print("Extreme fear — contrarian buy zone")
elif fg["value"] > 75: print("Extreme greed — contrarian sell zone")

Rate limits (per IP)

Endpoint	Limit	Window	Cache
/api/btc-price	1000	1 min	60s
/api/fear-greed	200	1 min	1h
/api/market-summary	300	1 min	60s
/api/top-coins	300	1 min	60s

Burst-friendly limits. If you need higher throughput contact [email protected].

Endpoints

GET/api/btc-price

Returns live Bitcoin price in USD.

Response (example)

{
  "price": 75247.32,
  "currency": "USD",
  "change24h": 1.23,
  "timestamp": "2026-05-05T12:00:00Z"
}

GET/api/fear-greed

Returns the current Crypto Fear & Greed Index (0-100).

Response (example)

{
  "value": 72,
  "classification": "Greed",
  "timestamp": "2026-05-05T00:00:00Z"
}

GET/api/market-summary

Returns a summary of global crypto market conditions.

Response (example)

{
  "totalMarketCap": "2.8T",
  "btcDominance": "54.2%",
  "totalVolume24h": "185B",
  "fearGreed": 72,
  "btcPrice": 75247.32,
  "ethPrice": 2315.58,
  "timestamp": "2026-05-05T12:00:00Z"
}

GET/api/top-coins

Returns the top 10 coins by market cap with live prices.

Response (example)

{
  "coins": [
    { "rank": 1, "symbol": "BTC", "name": "Bitcoin", "price": 75247.32, "change24h": 1.23 },
    { "rank": 2, "symbol": "ETH", "name": "Ethereum", "price": 2315.58, "change24h": 0.87 }
  ],
  "timestamp": "2026-05-05T12:00:00Z"
}

Usage Notes

• No API key required for public endpoints
• CORS enabled for all origins
• Cache headers included — data refreshes every 60 seconds
• Reasonable use policy: max 100 requests/minute per IP
• Data aggregated from major public market-data providers + exchange APIs

For AI Tools: These endpoints are also accessible at /.well-known/ai-plugin.json for ChatGPT plugins and other AI integrations.

Quick start — JavaScript / TypeScript

No SDK needed · uses fetch

// One-liner: BTC price
const r = await fetch("https://cryptopulse24.com/api/btc-price");
const { price, change24h } = await r.json();
console.log(`BTC: $${price} (${change24h}% 24h)`);

// Top 10 coins (typed)
interface Coin { rank: number; symbol: string; name: string; price: number; change24h: number; }
const res = await fetch("https://cryptopulse24.com/api/top-coins");
const { coins } = await res.json() as { coins: Coin[] };
const movers = coins.sort((a, b) => Math.abs(b.change24h) - Math.abs(a.change24h));

Quick start — Python

Just requests

import requests

r = requests.get("https://cryptopulse24.com/api/market-summary")
data = r.json()
print(f"BTC: ${data['btcPrice']} · Fear & Greed: {data['fearGreed']}")

# Fear & Greed history (sentiment signal)
fg = requests.get("https://cryptopulse24.com/api/fear-greed").json()
if fg["value"] < 25: print("Extreme fear — contrarian buy zone")
elif fg["value"] > 75: print("Extreme greed — contrarian sell zone")

Rate limits (per IP)

Endpoint	Limit	Window	Cache
/api/btc-price	1000	1 min	60s
/api/fear-greed	200	1 min	1h
/api/market-summary	300	1 min	60s
/api/top-coins	300	1 min	60s

Burst-friendly limits. If you need higher throughput contact [email protected].