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Prompt Protection

github.comInfrastructure

PulseGate's liveness check found it on 24 Sep 2026; it has been in the index since 24 Sep 2026. How this is checked

Prompt Protection is a zero-dependency, TypeScript-first library for detecting prompt injection attacks and enforcing LLM security rules. It runs in Node.js and browsers to block jailbreaks, data exfiltration, and system-prompt leakage.

Inferred · not functionally tested

Open SourceWebCLISelf-hosted
Prompt Protection preview
Visit github.com

Overview

6 features

Purpose: Preventing prompt injection, jailbreaks, data exfiltration, and system-prompt leaks in LLM applications.

Inferred · not functionally tested

Audience: developers building Node.js and browser-based LLM applications

Inferred · not functionally tested

Functions: Unknown

Interfaces: API: unknown · MCP: unknown · CLI: indicated (inferred, not tested) · Self-hosting: indicated (inferred, not tested)

Recorded constraints: pricing: open_source · license: Open Source · platforms: CLI, WEB · deployment: browser, cli, self_hosted

Constraint provenance is unknown; confirm requirements with the publisher.

Record sources: github.com. These links do not verify the individual claims.

In the AI security & guardrails space, Prompt Protection takes a focused approach. Inferred · not functionally tested: It focuses on preventing prompt injection, jailbreaks, data exfiltration, and system-prompt leaks in LLM applications. Inferred · not functionally tested: It is built as an open-source project for developers building Node.js and browser-based LLM applications. Basis unknown · not verified: The project is open source (Open Source). Basis unknown · not verified: It ships for the web and the command line, and it can be self-hosted.

Behind Prompt Protection is mughalhere. Inferred · not functionally tested: Among its 6 catalogued features are prompt injection detection, jailbreak blocking, and data exfiltration blocking.

Summary written by a language model from the project’s public pages.

Tasks: Inferred · not functionally tested

  • Prompt injection detection
  • Jailbreak blocking
  • Data exfiltration blocking
  • System-prompt leak prevention
  • 117 security rules
  • Node.js support

Topics: Inferred · not functionally tested

Tags
prompt-injection-detectionllm-firewalljailbreak-preventiontypescript-security
AI capabilities
Text
Inference: Local

JSON profile · Text profile · Access guide

Built with & integrations

AI providers
multiple
Runs on
BrowserCLISelf-hosted
Detected from
multiple
bvercel/ai in the HTML

Trust & compliance

License
Open Source
Public signals
HTTPSOpen SourceFree tier

Indexing history

1

What PulseGate has recorded for this listing

  1. Indexed21 Sep · 12:20 UTC
    prompt-protection seen via MCP Registry (official)
    Source: MCP Registry (official) · Open

Frequently asked questions about Prompt Protection

What does Prompt Protection do?
Inferred · not functionally tested: Prompt Protection focuses on preventing prompt injection, jailbreaks, data exfiltration, and system-prompt leaks in LLM applications. It is catalogued under AI security & guardrails on PulseGate.
Who should use Prompt Protection?
Inferred · not functionally tested: Prompt Protection is an open-source project built for developers building Node.js and browser-based LLM applications.
Is Prompt Protection free?
Basis unknown · not verified: Yes — Prompt Protection is open source under the Open Source license and free to use.
What platforms does Prompt Protection run on?
Basis unknown · not verified: Prompt Protection runs on the web and the command line. It can also be self-hosted.
Is Prompt Protection still active?
PulseGate's liveness check found it on 24 Sep 2026.
What are alternatives to Prompt Protection?
Similar projects tracked by PulseGate include promptshield-firewall, PromptGuard, and Shieldprompt.promptshield-firewallPromptGuardShieldprompt
Who makes Prompt Protection?
Prompt Protection is developed by mughalhere.
Is Prompt Protection open source?
Basis unknown · not verified: Yes — Prompt Protection is open source under the Open Source license.

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