Side-by-Side Model Context Protocol Comparison
Polygon Io vs Stock Scanner MCP
In-depth architectural comparison of the Polygon Io and Stock Scanner MCP MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.
At a Glance & Executive Verdict
Polygon Io
Finance & Fintech · Remote HTTP/SSE
Quality: 39/100 (Fair) | Auth: No auth required
Stock Scanner MCP
Finance & Fintech · Local stdio
Quality: 45/100 (Fair) | Auth: No auth required
Verdict Summary: Choose Polygon Io if you need specialized Finance & Fintech tools running via a hosted cloud SSE transport. Choose Stock Scanner MCP if your workspace requires Finance & Fintech integration with local subprocess execution. Both servers can be configured concurrently in your client's
mcpServers manifest.Which MCP Server Should You Choose?
P
Choose Polygon Io when:
- You need dedicated capabilities in the Finance & Fintech domain.
- You prefer remote streaming HTTP/SSE transport architecture.
- Your security boundary fits: No auth required (Free / Open Source).
S
Choose Stock Scanner MCP when:
- You need dedicated capabilities in the Finance & Fintech domain.
- You prefer local stdio subprocess transport architecture.
- Your security boundary fits: No auth required (Free / Open Source).
Feature & Specification Comparison
Tools & Capabilities Breakdown
Polygon Io Tools (0)
No explicit tool names declared in metadata yet. Check project README on main listing page.
Stock Scanner MCP Tools (0)
No explicit tool names declared in metadata yet. Check project README on main listing page.
Ready-to-Paste Client Configurations
Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).
Polygon Io Configuration
Stock Scanner MCP Configuration