MCP Servers

polygon-io/mcp_polygon)

Name: polygon-io/mcp_polygon)
Author: Various

An MCP server for Massive.com Financial Market Data

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Our verdict

Not reviewed yet

We have not reviewed polygon-io/mcp_polygon) yet

No one at Enterprise DNA has checked this listing against its sources. The description comes from public listings gathered automatically. Any fact below shows where it came from and when it was last checked.

How we review records

From the listing

About polygon-io/mcp_polygon)

MCP server that provides access to financial market data from Polygon.io. It allows AI assistants to retrieve real-time and historical stock, options, and forex data through the Model Context Protocol. Built in Python, it exposes endpoints for querying market data programmatically.

Best for

Developers building AI assistants that need financial market data

Use cases

Fetching real-time stock prices for analysis
Retrieving historical market data for backtesting
Integrating financial data into AI-powered financial reports

Notes

346 stars on GitHub. Last updated 2026-05-05. Licensed MIT.

Pros

Well-documented and easy to set up with MCP-compatible AI tools
Provides access to comprehensive financial datasets from Polygon.io
Actively maintained with 346 GitHub stars

Cons

Requires a Polygon.io API subscription for data access
Limited to the data types and endpoints supported by Polygon.io
May have latency for real-time data depending on the API plan

Key facts

What we have checked

Days since the last commit: 8; Checked 12 Nov 2026GitHub
GitHub forks: 116; Checked 12 Nov 2026GitHub
GitHub stars: 401; Checked 12 Nov 2026GitHub
Days to a first reply on issues: 19.7; Checked 12 Nov 2026GitHub
Open issues: 9; Checked 12 Nov 2026GitHub
Releases in the last 90 days: 0; Checked 12 Nov 2026GitHub

Each value shows when we last confirmed it and where it came from. Values we have not confirmed are left out, never guessed.

How to use

How to set it up

As the listing publishes it. We have not run this install.

Install

npx @modelcontextprotocol/inspector uv --directory /path/to/mcp_massive run mcp_massive

Tools exposed

search_endpoints
call_api
query_data
MASSIVE_API_KEY
POLYGON_API_KEY
MCP_TRANSPORT
MASSIVE_API_BASE_URL
MASSIVE_LLMS_TXT_URL
MASSIVE_MAX_TABLES
MASSIVE_MAX_ROWS

Clients the listing names (not checked here)

Claude Desktop, Claude Code

Install

Add polygon-io/mcp_polygon) to your client

Not verified yet

No install recipe yet. We write one for Claude Code, Claude Desktop, Cursor, VS Code, Codex and ChatGPT when the server is in the official MCP registry with a package or remote address we can use.

Until then, follow the project's own README, or the setup the listing publishes under How to set it up.

Works with

What polygon-io/mcp_polygon) connects to

No confirmed connections yet. A product appears here when the server's registry name, repo, homepage or name ties it to that product, and a client appears when we have an install recipe for it.

Stars and usage

How polygon-io/mcp_polygon) is growing

GitHub stars

398 to 401

stars. 29 Oct 2026 to 12 Nov 2026, 3 readings.

Source: GitHub. Checked 12 Nov 2026.

Health and security

Is polygon-io/mcp_polygon) looked after, and what do its setup files show

Health score

53 out of 100

Does someone look after this repository? It does not say the code is good or safe. Worked out from GitHub signals checked 12 Nov 2026. How it is worked out

Part	Points	What we saw
Recent activity	30 of 30	Last push 8 days ago
Releases	0 of 15	0 releases in 90 days
Issue replies	7.6 of 20	First reply in 19.7 days (median)
Maintainer	15 of 15	Owned by an organisation
Official source	0 of 20	Community server

Alternatives

Alternatives to polygon-io/mcp_polygon)

Record	Type	How we know	Checked
Aether WealthAlternative to this	MCP server	Matched from the listing text	9 Nov 2026
agent-finAlternative to this	MCP server	Matched from the listing text	10 Nov 2026
finance-mcpAlternative to this	MCP server	Matched from the listing text	8 Nov 2026

Compare

Compare polygon-io/mcp_polygon) side by side

Sources

Where this comes from

GitHubRegistry
Checked 12 Nov 2026 · Days since the last commit, GitHub forks, GitHub stars, Days to a first reply on issues, Open issues, Releases in the last 90 days

A source shows what was published when we checked it. It does not certify security, performance or a working installation. Read our method.

Changelog

What changed

No changes recorded yet. Releases, price changes and deprecations appear here, with their dates, once we track them for this record.

Open-source & AI alternatives

Swap-in tools that solve the same job. Weigh the trade-offs before you commit.

Alternatives3 entries

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