Spanly

Show HN: Spanly - See what AI agents do inside your MCP server

Operating in show hn launch, Spanly operates.

Profile

Hi HN, I'm Tim, solo founder of Spanly (https://spanly.com). I spent the last year working on MCP gateways, and debugging them with nothing better than HTTP-level APM was painful. Spanly runs its own MCP server and monitors it with itself, so I've been the first user of everything below.Spanly is observability for MCP servers, the protocol that lets agents like Claude and Cursor call your product's tools. It's a sidecar proxy, so it works with any language and requires zero code changes.Live demo (no signup): https://app.spanly.com/share/demoSidecar source (Apache-2.0): https://github.com/spanlyhq/spanlyHere's the problem. If your product ships an MCP server (the "Stripe added an MCP" patter

As a business in show hn launch, Spanly is listed here with the public details available about it.

Directory data places it at the Show HN launch stage.

Website: spanly.com