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Prompt Security

Monitors and secures AI agent deployments, detects prompt injection attacks, and flags sensitive data in LLM usage.

Actively maintained

SecurityMonitoringSecurityAgents
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Prompt Security: data, price, alternatives
At a glancechecked Oct 27, 2026

≈ 2.2kvisits/mo

Established · estimate, read Sep 17, 2026

  • Prompt Security2.2k
  • Closest alternative Lakera2.9k
For
Security teams monitoring AI agent deployments and LLM usage in enterprises
Activity
Actively maintainedrelease 6 days ago · site updated 5 weeks ago
Company
since 2023per their site
Used for
  • Track and analyze AI agent deployments across the organization
  • Test system prompts against dynamic LLM-based attacks
  • Monitor prompts for sensitive data, secrets, and injection attempts
Worth knowingcomputed from what we read · each with its source
  • Used more than 85% of the 443 tools on its shelfINITE Atlas →
  • On the web since 2023, older than 77% of its shelfINITE Atlas
  • 1,922 stars on GitHubGitHub ↗
  • Has an MCP server (1 in the registry)public registry →
The companyeach fact with its source · read Sep 17, 2026
How a program reaches itfound, not claimed · read Oct 9, 2026
  • MCP serverhttps://mcp.prompt.security/mcpnot in the official registry: answered when asked
  • Stateanswers, requires sign-inchecked 2026-10-27
  • Address to connectmcp.prompt.security/mcp

MCP server details →

This card as JSON, for your agent →

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Alternatives in Securityby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

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Questions this page answers
  • What is Prompt Security?

    Monitors and secures AI agent deployments, detects prompt injection attacks, and flags sensitive data in LLM usage. It is listed in the Atlas under Security.

  • Who is Prompt Security for?

    Security teams monitoring AI agent deployments and LLM usage in enterprises

  • Do people use Prompt Security?

    Established: ≈ 2.2k visits/mo · estimate, 2026-09.

  • Is Prompt Security still maintained?

    Actively maintained: release 6 days ago · site updated 5 weeks ago.

  • What are alternatives to Prompt Security?

    In Security, by use: Lakera, ClawSecure, AI Security Guard, Kalpit Labs, AI Duel.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.

How we read every tool → · By INITE Atlas Desk