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 patterns
• POST /api/v1/search/batch — Multi-symbol search
• GET /api/v1/discover/picks — Today's top patterns
• POST /api/v1/follow-through — Forward return computation
• POST /api/v1/summary — AI summary generation
• GET /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.

Links#

• OpenAPI spec
• AI plugin manifest
• MCP server