polygon-io/mcp_polygon)

MCP Data & Storage

An MCP server that provides access to Polygon.io financial market data APIs for stocks, indices, forex, options, and more.

Python Latest v0.10.0 · 29d ago Security brief →

Features

Provides an LLM‑friendly interface to the full Massive.com financial data API
Offers composable tools: search, call, and query against stored SQLite data
Includes built‑in financial functions (e.g., Black‑Scholes greeks, returns calculations)
Automatically syncs with all Massive.com endpoints at startup

View all 13 releases →

v0.10.0 New feature 29d

Notable features

Full changelog

Add vanna and volga functions by @joedursun in https://github.com/massive-com/mcp_massive/pull/90
Search improvements by @joedursun in https://github.com/massive-com/mcp_massive/pull/91

Full Changelog: https://github.com/massive-com/mcp_massive/compare/v0.9.1...v0.10.0

v0.9.0 Breaking risk 1mo

Breaking changes

Search backend replaced: BM25 algorithm removed, FTS5 (SQLite full-text search) used instead.

Full changelog

Bump package versions + fix lint by @joedursun in https://github.com/massive-com/mcp_massive/pull/85
Replace BM25 with FTS5 in SQLite + misc bug fixes by @joedursun in https://github.com/massive-com/mcp_massive/pull/86

Full Changelog: https://github.com/massive-com/mcp_massive/compare/v0.8.8...v0.9.0

v0.8.8 Bug fix 1mo

Notable features

Full changelog

Fix case-insensitive column name collision in SQLite storage by @november-pain in https://github.com/massive-com/mcp_massive/pull/84
Use llms-full.txt endpoint for a single request by @joedursun in https://github.com/massive-com/mcp_massive/pull/82