grahammccain/chart-library-mcp

v5.3.0 Breaking

This release includes breaking changes for platform teams planning a safe upgrade.

Published 8d MCP Search & Web

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✓ No known CVEs patched

Read the diff → Tool health → What is this tool? →

✓ No known CVEs patched in this version

Topics

ai-agents claude finance llm-tools market-data mcp

+7 more

mcp-server model-context-protocol pattern-recognition stock-market stocks technical-analysis trading

Summary

AI summary

Manifest updates, tool surface title changes with migration hints, and a new bundle release.

Full changelog

What's new

Submission-readiness for the Anthropic Connectors Directory.

Manifest (v0.2 compliant)

privacy_policies array → https://chartlibrary.io/privacy
display_name, long_description, documentation, support fields
user_config block describing the optional CHART_LIBRARY_API_KEY env var

Tool surface

All 22 tools (10 canonical + 12 deprecated wrappers) now declare an explicit user-facing title=
Deprecated wrappers' titles include the canonical replacement inline so Claude users see the migration path

Documentation

README adds Privacy Policy + Security sections summarizing the six required topics (collection / usage / sharing / third-party / retention / contact)
Fixed the .mcpb download link (was pointing at 1.1.1)

Bundle

chart-library-5.3.0.mcpb attached to this release (22.6 KB)
8-file zip at root level, identical format to v5.0.0
Install: open the .mcpb file with Claude Desktop

Companion changes in the chart-library repo

/mcp Streamable HTTP endpoint at chartlibrary.io now enforces Origin-header validation per the MCP 2025-03-26 spec
New developer landing page at https://chartlibrary.io/developers/claude-connector
Both submitted to the Anthropic Connectors Directory today

View diff on GitHub

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About grahammccain/chart-library-mcp

Historical stock chart pattern intelligence for AI agents. 24M pre-computed embeddings across 15K stocks and 10 years of data. Search by ticker+date or screenshot to find the most similar historical patterns and see what happened next. 19 tools including pattern search, forward returns, regime analysis, and trade simulation. Install: `pip install chartlibrary-mcp`. Free tier: 200 calls/day.

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