Chart Library
Find historically similar stock chart patterns from 24M+ embeddings across 15K+ symbols and 10 years of data. See what happened next — 1, 3, 5, and 10-day forward returns with AI summaries.
Usage
Ask your agent:
- "Find charts similar to AAPL on 2024-06-15"
- "What are today's most interesting chart patterns?"
- "Analyze TSLA's 3-day chart vs historical analogs"
API Endpoints
POST /api/v1/analyze— Complete analysis in one call (recommended)POST /api/v1/search/text— Search for similar patternsPOST /api/v1/search/batch— Multi-symbol searchGET /api/v1/discover/picks— Today's top patternsPOST /api/v1/follow-through— Forward return computationPOST /api/v1/summary— AI summary generationGET /api/v1/status— Database stats
Auth
No API key required for free tier (100 req/day). For higher limits, get a key at chartlibrary.io/developers.