Is Polygon.io safe to install?
Polygon.io · Commerce · stdio (local process)
Stocks, options, forex, and crypto market data from Polygon.io.
Capabilities
What Polygon.io declares it can do
A server's blast radius is the most powerful thing each of its tools can do. This grades the tools it declares, read-only, not whether it is secure.
- Execute0
- Delete0
- Write0
- Read53
Polygon.io declares no high-impact capabilities that AxioRank flags. A minimal grade means a small blast radius, not an endorsement.
Tools
Every tool Polygon.io exposes
53 tools
Control
Govern Polygon.io with AxioRank
Installed as-is, all 53 of Polygon.io's tools are callable by your agent without restriction, including any that write, delete, or execute.
Flip the switch to see the policy AxioRank would apply.
Install
Add Polygon.io to your client
Drop this into your MCP client config (Claude Desktop, Cursor, and others).
{
"mcpServers": {
"polygon-io": {
"command": "uvx",
"args": [
"--from",
"git+https://github.com/polygon-io/mcp_polygon@v0.4.0",
"mcp_polygon"
]
}
}
}Embed
Show the grade in your README
[](https://axiorank.com/mcp-index/polygon-io)Directory
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How it works
About this grade
The grade reflects the blast radius of what Polygon.io declares it can do, read-only, not whether it is secure or trustworthy, and not a judgment of the vendor. Maintain this server? Claim this listing or request a re-scan. See the methodology.
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Let your agents use Polygon.io safely
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