polygon-io/mcp_polygon)

MCP Data & Storage

A Model Context Protocol (MCP) server that exposes the full Massive.com financial data API through LLM‑friendly composable tools (search, call, query).

Track releases GitHub

Python Latest v0.10.0 · 2mo ago Security brief →

Features

Provides three LLM‑compatible tools: search_endpoints, call_api, and query_data.
Dynamically indexes all Massive.com API endpoints at startup for automatic coverage.
Supports built‑in financial functions (Black‑Scholes greeks, returns, technical indicators).
Stores results in an in‑memory SQLite database for downstream querying.
Offers configurable transport options (stdio, SSE, HTTP streaming).

Recent releases

View all 13 releases →

v0.10.0 New feature 2mo

Notable features

Added vanna function
Added volga function
Improved search capabilities

Full changelog

What's Changed

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

View release on GitHub

v0.9.0 Breaking risk 3mo

Breaking changes

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

Full changelog

What's Changed

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

View release on GitHub

v0.8.8 Bug fix 3mo

Notable features

Use llms-full.txt endpoint for a single request

Full changelog

What's Changed

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