Cryptocurrency · head-to-head
Alpha (Mossland) vs Blockchain.com
Alpha is Mossland's free, keyless public API that turns Korean-language crypto YouTube/news/macro chatter plus Mossland's own on-chain activity into a queryable knowledge base of canonical entities, topics, and events. Its /api/ask endpoint answers natural-language questions in Korean or English with citations back to source videos or briefs, and a companion MCP server exposes 12 tools for Claude Desktop, Cursor, and similar agent clients over JSON-RPC. Every surface is HTTPS-only with no signup, though the docs note unauthenticated abuse may trigger a per-IP rate cap.
Blockchain.com's free Explorer API returns JSON data for Bitcoin blocks, transactions, and addresses with no signup or key, alongside a Statistics/Charts API, an Exchange Rates API, and a WebSocket feed for real-time block and mempool notifications. Browser callers can opt individual GET requests into CORS by appending a cors=true parameter; this read-only data API is a separate product from Blockchain.com's API-key-gated Exchange trading API.
| Alpha (Mossland) | Blockchain.com | |
|---|---|---|
| Authentication | None | None |
| Pricing | free | free |
| Formats | JSON | JSON, WebSocket |
| CORS | yes | yes |
| HTTPS | Yes | Yes |
Blockchain.com supports 2 response formats, while Alpha (Mossland) offers fewer — pick Blockchain.com for more integration flexibility.