MCP.Market

Castle MCP by usefulapi MCP server

online · 100% uptime
by usefulapi.io·io.usefulapi/castle·v1.33.0
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Investigate security events and manage the allow/deny lists an analyst acts on.

D47/100grade D
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Safety scan
D47/100

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Castle MCP by usefulapi tools

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How Castle MCP by usefulapi compares

Against every graded Security MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
47/100
higher than 8% of 918 Security servers
Uptime
100%
of our recent checks; the typical remote Security server answers 100%
Response time
24 ms
faster than 97% of 550 Security servers

Release history: 13 versions in the registry since 2026-09-29, latest 2026-10-31, typically one every 1 day.

Install Castle MCP by usefulapi in Claude Code, Cursor or VS Code

claude mcp add --transport http castle https://castle.usefulapi.io/mcp
Add to Cursor

Castle MCP by usefulapi: common questions

Is Castle MCP by usefulapi MCP server safe?
Not recommended: it is graded D (47/100). Read the Castle MCP by usefulapi safety report
How do I install Castle MCP by usefulapi?
It runs remotely at castle.usefulapi.io. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Castle MCP by usefulapi need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Castle MCP by usefulapi maintained?
The last commit was 33 days ago (2026-09-30). The latest release is v1.33.0.
Is Castle MCP by usefulapi up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of Castle MCP by usefulapi?
Servers from other publishers that do the same job: Skylos MCP server, Snyk MCP server and CrowdStrike Falcon MCP Server.
How does Castle MCP by usefulapi compare with other Security MCP servers?
safety score 47/100 (higher than 8% of 918 Security servers); uptime 100% (of our recent checks; the typical remote Security server answers 100%); response time 24 ms (faster than 97% of 550 Security servers). Full comparison.

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