AI · alternatives · 2026
24 alternatives to Insight IT Solutions PrismGuard
Prompt-injection firewall for prod LLM apps
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
Lakera Guard▲131Protect your LLM applications with a few lines of code.
2023 · lakera.ai · its alternatives →
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Every other gateway is detect-and-block. You don't get a security grade. You don't get red team in CI. We built the one that does. PromptGuard is a proxy: change your base URL (one line with our SDK, or a few lines without), and every request gets checked for prompt injection, PII leaks, jailbreaks, and abuse. 20+ threat vectors, 39+ PII types. We also ship a red team suite and an autonomous agent that mutates attacks to find bypasses - you get a grade (A-F) and a GitHub Action that runs these tests on every PR. So you see where you're weak before you ship. Works with OpenAI, Anthropic,…
Dec 2025 · promptguard.co · its alternatives →
- 3
New ways of breaking app-integrated LLMs . Contribute to greshake/llm-security development by creating an account on GitHub.
2023 · github.com · its alternatives →
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Hi HN, Matvey, Ildar, Joey, and Dominik here. If you're building LLM agents that use tools, you're probably worried about prompt injection attacks that can hijack those tools. We were too, and found that solutions like prompt-based filtering or secondary "guard" LLMs can be unreliable. Our thesis is that agent security should be handled at the network level between the agent and the LLM, just like a traditional web application firewall. So we built Archestra Platform: an open-source gateway that acts as a secure proxy for your AI agents. It's designed to be a deterministic firewall against…
2025 · archestra.ai · its alternatives →
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Monitor models, explain decisions, & future-proof models.
2025 · prism.blockconvey.com · its alternatives →
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Wardstone Guard is an LLM firewall that detects prompt injections, jailbreaks, harmful content, and PII leakage in a single API call with Sub-30ms latency. Free tier available.
Feb 2026 · wardstone.ai · its alternatives →
- 9
Fast and adaptive security guardrail for AI agents
2025 · guardion.ai · its alternatives →
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- 11
Tiny prompt-injection firewall for LLM chat apps. 14 MB.
May 2026 · github.com · its alternatives →
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Hey HN, We’re Alex, Land, and Rajit. We’re building Prism (prismai.sh), a tool that helps browser agents authenticate onto websites with user credentials. Developers pass in credentials, Prism logs into a website on their behalf, and hands them back the cookies so they have an authenticated session. Here’s an example of how developers can use Prism to complete username/password flows (https://youtu.be/SEtVUnWnxuE), and here’s an example of how developers can use Prism to complete login flows that require an OTP code (https://youtu.be/fe9w9PvrwH0). We spoke…
2025 · prismai.sh · its alternatives →
- 14
I kept seeing every npm/pnpm/yarn/bun/uv supply chain post end with the same advice (set a minimum release age, turn off install scripts), and while I know cooldowns are "controversial", they do work. But even if you convince people that they should set cooldowns, it seems many don't end up following through, not sure why, maybe because it means hand-editing five config files in five formats with five different time units, or perhaps the "it won't happen to me" syndrome (or "I'll do it later, it seems complicated" where it's actually very simple). So I created a tool that…
Jun 2026 · github.com · its alternatives →
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- 16OS
2024 · defguard.net · its alternatives →
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Guardrails and Provenance for enterprise AI control
Mar 2026 · console.agumbe.ai · its alternatives →
- 19
Cuts your LLM API costs by 40-70%. One line of code.
May 2026 · semanticguard.dev · its alternatives →
- 20
Stop prompt injection before it reaches your AI agent
Aug 2026 · mcp.glc-rag.hu · its alternatives →
- 21
Current AI-assisted CLI tools are often part of larger systems and work better on Linux. I built llm-term to address these. It's a Rust-based tool that compiles into a single binary file. You only need to download the binary, add it to your PATH, and configure your OpenAI key to get started. While llm-term offers an option for gpt-4o, it works great with gpt-4o-mini. So it's not costly. I appreciate any feedback or suggestions.
2024 · github.com · its alternatives →
- 22
The ultimate Agentic Firewall & Telemetry Proxy for LLMs.
Jun 2026 · synapse-proxy.com · its alternatives →
- 23
New ways of breaking app-integrated LLMs . Contribute to greshake/llm-security development by creating an account on GitHub.
2023 · github.com · its alternatives →
- 24
Raptor▲10Hot patch, cache, protect your for LLM API. Built in Rust.
Nov 2025 · raptordata.dev · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →