API Documentation
Integrate Blockto market data into your own applications.
Overview
The Blockto API provides real-time and historical cryptocurrency data, market metrics, news feeds, and sentiment indicators. RESTful JSON endpoints with optional WebSocket streaming.
Authentication
All requests require an API key passed in the Authorization header:
Authorization: Bearer YOUR_API_KEY
Request your API key at: info@blockto.io (subject: API Access)
Base URL
https://api.blockto.io/v1
Endpoints (beta)
GET /prices — Live prices for all tracked assets
GET /prices/{symbol} — Single asset price + metadata
GET /news — Latest news articles (paginated)
GET /news/{slug} — Single article
GET /fear-greed — Current Fear & Greed index
GET /halving — Bitcoin halving countdown data
GET /markets/overview — Global market cap, dominance, volume
Rate limits
Free tier: 100 requests/minute. Pro tier: 1,000 requests/minute. Enterprise: unlimited. Contact info@blockto.io for Pro/Enterprise access.
Response format
All responses return JSON with the following envelope: { "status": "ok", "data": { ... }, "timestamp": 1700000000 }