Polygon.io
This MCP server provides complete access to Polygon.io's financial market data API through 35+ tools covering stocks, options, forex, and crypto data including real-time and historical trades, quotes, aggregates, market snapshots, ticker details, news, dividends, splits, and financial fundamentals. Built by Polygon.io using Python with the FastMCP framework and their official API client, it handles all major endpoints with automatic JSON parsing and comprehensive error handling, supporting multiple transport protocols including STDIO, SSE, and Streamable HTTP. The implementation is valuable for financial analysis, algorithmic trading research, market monitoring, and building AI assistants that need access to professional-grade market data including treasury yields, short interest, IPO information, and real-time currency conversion.
Composite of vulnerability cleanliness, spec conformance, provenance, stability, and usage signals — scanned and weighted by Cognium. Human and agent signals are tracked separately. Last scanned 2026-09-19.
Scan details: Circle-IR · 2026-09-19 · Appeal
View full trust & usage report →Metadata
- Version
- 1.0.0
- Skill type
- atomic
- Execution layer
- mcp-remote
- Category
- finance
- Source
- PulseMCP
- Repository
- github.com/massive-com/mcp_massive
- Author type
- human
- Last scanned
- 2026-09-19
- Updated
- 2026-09-19
Use via MCP
Resolve Polygon.io from your agent
Streamable HTTP transport at https://api.skillsregistry.net/mcp. No auth for read tools. Discovery: .well-known/mcp.json.
One command in your shell — Claude Code wires it up and verifies the connection. Run /mcp in any session to confirm.
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp--scope user for --scope project to commit it to .mcp.json.