Knowngood MCP server

• check_webmcpFree

  Check a website LIVE for WebMCP tools, and where a browser is available whether any tool actually registers when the page runs. Returns one of: registered, declared_only, declared, not_declared, could_not_ask, or excluded when the site's robots.txt refuses AI input. could_not_ask is a distinct answer and is never reported as a no. Tools are listed, never called. Reads only the site named plus published population figures — it does not consult the index, and running it changes no ranking or listing.

• find_capabilityFree

  Find websites where an agent can accomplish a task. Returns probe-verified agent-readiness signals, unverified apparent actions read from page content, the verification tier, how each site was found (it declared agent access, probe discovery, or it was submitted), and a report URL to cite. Returns count:0 with an empty_note when nothing in the index matches — never a nearest guess.

• get_site_reportFree

  Fetch Known Good's dated verification report for one listed website: which capabilities were tested, which passed, when it was probed, what an agent can apparently do there, and how the site was found: whether it declared agent access, came from probe discovery, or was submitted. Answers "is this specific host agent-ready?". Returns found:false for anything not in the index — it never guesses a nearest match. Cite the report URL and its date.

• –Code scanremote-only server, no package to scann/a
• Live reliabilityremote reachable in 490ms20/20
• Tool poisoning3 tool descriptions checked15/15
• Auth qualityopen endpoint, read-only tools10/15
• Maintenanceno repository listed3/15
• Maintainer identityverified namespace with website, no repo4/10

Knowngood: common questions

Is Knowngood MCP server safe?

With care: it is graded C, so read the findings first (69/100). Read the Knowngood safety report

How do I install Knowngood?

It runs remotely at knowngood.sh. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.

Does Knowngood need an API key?

Not as far as the registry entry and our scan can tell: no credentials are declared or required.

Is Knowngood maintained?

The latest release is v1.6.0.

Is Knowngood up?

100% of our last 6 checks got an answer. We check remote servers about four times a day.

What can I use instead of Knowngood?

Servers from other publishers that do the same job: DataSinking MCP server, PRIMAMCP MCP server and Mushi Mushi MCP server. Compare all Knowngood alternatives.