MCP.Market

Arcjet MCP server

online · 100% uptime
by arcjet.com·com.arcjet/mcp·v1.0.0·1 stars
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An MCP server for Arcjet - the runtime security platform that ships with your AI code.

A87/100grade A
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Safety scan
A87/100

full report

Adoption
New

1 stars

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Arcjet tools

Tool list not cached yet. `describe` through the gateway fetches it live.

Public scan report

scanner v0.1.9 · 2026-09-27 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 387ms (auth required)20/20
  • –Tool poisoningtools not inspected (endpoint requires auth); not countedn/a
  • Auth qualityOAuth resource metadata advertised on 40115/15
  • Maintenancelast push 171 days ago8/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year9/10
Overall 87/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Arcjet compares

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

Safety score
87/100
higher than 75% of 915 Security servers
Uptime
100%
of our recent checks; the typical remote Security server answers 100%
Response time
105 ms
faster than 85% of 547 Security servers
GitHub stars
1
more than 60% of 587 Security servers

Install Arcjet in Claude Code, Cursor or VS Code

claude mcp add --transport http mcp https://api.arcjet.com/mcp
Add to Cursor

What the publisher says

From the Arcjet repository's README, as published. We do not edit it. Read it on GitHub

Arcjet - MCP Server

Arcjet is the runtime security platform that ships with your code. Enforce budgets, stop prompt injection, detect bots, and protect personal information with Arcjet's AI security building blocks.

The Arcjet MCP server gives AI coding assistants the skills of a security engineer. By connecting to the Arcjet MCP server, your AI coding tools can:

  • List teams you belong to.
  • List sites within a team.
  • Create new sites within a team.
  • Get site keys (ARCJET_KEY) for use in your projects.
  • List requests received by a site with optional filtering.
  • Explain decisions to understand why requests were allowed or denied.
  • Get request details including headers, rules executed, and decision info.
  • Get site quota usage and limits for the current billing window.
  • Analyze traffic patterns, denial rates, top paths, and top IPs.
  • Detect anomalies by comparing current traffic to the previous period.
  • Investigate IPs with geo, threat intelligence, and request activity.
  • Get dry-run impact analysis before promoting rules to live.

The MCP server is available at:

https://api.arcjet.com/mcp

It implements the latest MCP Authorization and Streamable HTTP specifications with OAuth-based authentication.

Supported clients

Any client that supports the latest MCP specification with Streamable HTTP transport and OAuth authorization is supported. This includes:

  • ChatGPT
  • Claude Code
  • Claude Desktop
  • Cursor
  • VS Code with Copilot
  • Windsurf
  • Many others that implement the MCP specification.

Setup

ChatGPT

  1. In ChatGPT, go to Settings.
  2. Navigate to Connectors and select Add connection.
  3. Enter https://api.arcjet.com/mcp as the server URL.
  4. Select OAuth for authentication.
  5. Click Create.

ChatGPT handles the OAuth flow automatically.

Claude Code

claude mcp add arcjet --transport http https://api.arcjet.com/mcp

Claude Code will open a browser for OAuth authentication on first connection. Once authenticated, you can use the /mcp command to verify the connection.

Claude Desktop

Remote MCP connections are available on Claude Desktop for users on Pro, Max, Team, and Enterprise plans.

  1. Open Settings in the sidebar.
  2. Navigate to Connectors and select Add custom connector.
  3. Configure the connector:
  • Name: Arcjet
  • URL: https://api.arcjet.com/mcp

Cursor

Add to .cursor/mcp.json in your project:

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Arcjet: common questions

Is Arcjet MCP server safe?
Yes, by our scan: it is graded A (87/100). Read the Arcjet safety report
How do I install Arcjet?
It runs remotely at api.arcjet.com. 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 Arcjet need an API key?
No key to paste: it signs you in with OAuth when your client connects.
Is Arcjet maintained?
The last commit was 209 days ago (2026-04-09). The latest release is v1.0.0.
Is Arcjet 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 Arcjet?
Servers from other publishers that do the same job: Mastyf AI MCP server, Code Factory MCP server and Bastion MCP server.
How does Arcjet compare with other Security MCP servers?
safety score 87/100 (higher than 75% of 915 Security servers); uptime 100% (of our recent checks; the typical remote Security server answers 100%); response time 105 ms (faster than 85% of 547 Security servers). Full comparison.

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