AI · alternatives · 2026
24 alternatives to Vantinel
Stop runaway agents before they break the bank.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 2 we have checked on their own sites, 2 of them free or with a free tier.
- 1
Agentinel▲18Stop AI agents from installing malicious packages.
Jul 2026 · agentinel.habitwala.in · its alternatives →
- 2
Vokal▲441A collaboration space for 10x teammates with their Al agents
Jun 2026 · vokal.team · its alternatives →
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Venn.ai▲336Delegate real work to AI agents with safety guardrails
Mar 2026 · venn.ai · its alternatives →
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Kastrafree tier, from $19.99/mo▲332Hi HN, Fernando and I built Kastra. Kastra intercepts AI agent tool calls and evaluates them against deterministic policies before they execute. We built this product to control pre- and post-inference workloads. This is aimed at developers using coding agents like Claude Code, Codex, Cursor, and OpenClaw. Kastra pushes an allow, hold, and deny decision before the action runs. You can build these policies in plain English from the web app. The interception engine evaluates the tools, targets, and parameters of every action at sub 1ms at a scale of billions of interceptions per day. We also…
Jul 2026 · kastra.ai · its alternatives →
- 5
Tracciafree tier, from $99/mo▲197AI applications are becoming agents, which has started to take autonomous decisions. There are plenty of tools and platform available to trace, and observe what an agent or llms calls does. They are good in what they do, but tracing and observability isnt enough for AI agents era. We need a solution that can help you observe, evaluate, create run time policies to govern and finally audit the actions of the agent. We built Traccia to solve this problem. The good part, all of these can be achieved by just writing few lines of code. Traccia has an open-sourced sdk that can work with your…
Aug 2026 · traccia.ai · its alternatives →
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Your AI agent hits an infinite loop and racks up $2000 in API charges overnight. This happens weekly to AI developers. AgentGuard monitors API calls in real-time and automatically kills your process when it hits your budget limit. How it works: Add 2 lines to any AI project: const agentGuard = require('agent-guard'); await agentGuard.init({ limit: 50 }); // $50 budget // Your existing code runs unchanged const response = await openai.chat.completions.create({...}); // AgentGuard tracks costs automatically When your code hits $50 in API costs, AgentGuard stops…
2025 · github.com · its alternatives →
- 8
Hi HN! We’re the team behind Fiddler, and we recently built an Agent Cache feature. It works by capturing an LLM request/response pair and, once caching is enabled, serving subsequent matching calls locally so duplicate requests never hit the provider. It’s meant to reduce three pains that show up together in agent development: token cost, feedback-loop latency, and output non-determinism. We’d love to hear your thoughts.
Aug 2026 · telerik.com · its alternatives →
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CtrlAI▲104Transparent proxy that secures AI agents with guardrails
Mar 2026 · github.com · its alternatives →
- 11
At Deno we've been using OpenClaw and other agents increasingly for addressing production problems in Deno Deploy - when a PagerDuty alert fires, the agent starts researching the cause and making fixes. In order to do this, the agent needs access to real production systems - postgres, kubernetes, gcp, clickhouse, github, etc. But this is dangerous to say the least - we want destructive actions to be reviewed by other LLMs, approved by humans, and logged appropriately. Claw Patrol terminates TCP connections over WireGuard or Tailscale, then parses application protocols (eg http, postgres,…
Jun 2026 · github.com · its alternatives →
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VELA▲74Securely execute AI-generated & untrusted code
Jun 2026 · vela-secure.vercel.app · its alternatives →
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Navox Agents▲7519 AI agents for Claude Code that run your full sprint cycle: strategy, spec, architecture, plan critique, build, review, QA, security, privacy, and shipping. Four sprint modes including a mobile chain for React Native. Open-source plugin, zero dependencies. - navox-labs/agents
Apr 2026 · github.com · its alternatives →
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A pre-execution guard that stops your coding agent running destructive commands. One shell file, no dependencies. - vandith1/agent-guard
Aug 2026 · github.com · its alternatives →
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Avery▲16Create a deterministic agent that runs on your hardware
Jul 2026 · avery.software · its alternatives →
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Orivael▲4The control plane for AI agents — govern before they act
Jul 2026 · firewall.orivael.dev · its alternatives →
- 17
In light of recent news about an agent deleting a production database, I thought now would be a good time to share this. As the use of AI tools in production is becoming more common, sadly so will the high profile incidents like the one mentioned. Fewshell is a terminal agent specifically designed to avoid this. There is no setting to enable command auto-approval. This is by-design, so that the user never has to second-guess or worry about accidentally having it enabled. Originally my intention was to build an AI mobile terminal to make typing shell commands easy. But with so many…
Apr 2026 · github.com · its alternatives →
- 18
The TLS for autonomous agent state.
Jul 2026 · memora.optitransfer.ch · its alternatives →
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SupraWall ▲4Open Source deterministic security Firewall for AI agents
May 2026 · supra-wall.com · its alternatives →
- 20
A reverse proxy that detects recursive agent loops and enforces spend caps in volatile memory, without retaining prompt payloads.
16d ago · circuit-breaker-sage.vercel.app · its alternatives →
- 21
Stop AI agents from doing things they shouldn't.
Aug 2026 · sanjaynandanj.github.io · its alternatives →
- 22
We’ve been building visual rule engines (clear spreadsheet interfaces -> API endpoints that map incoming data to a large number of potential outcomes), and had the fun idea lately to see what happens when we use our decision table UI with Claude’s PreToolUse hook. The result is a surprisingly useful policy/gating layer– these tables let your team: - Write conditional, exception-friendly policies beyond globs/prefixes (e.g. allow rm -rf only in */node_modules/*, deny / or $HOME, ask if --force or network call; gate kubectl delete / SQL DROP with a clear reason) -…
Jan 2026 · github.com · its alternatives →
- 23
Circuit breaker for AI agents. Catch loops at iteration 3
Jun 2026 · tokenwall.dev · its alternatives →
- 24
Hi HN, I’m the creator of Cordum. I’ve been working in DevOps and infrastructure for years (currently in the fintech/security space), and as I started playing with AI agents, I noticed a scary pattern. Most "safety" mechanisms rely on system prompts ("Please don't do X") or flimsy Python logic inside the agent itself. If we treat agents as autonomous employees, giving them root access and hoping they listen to instructions felt insane to me. I wanted a way to enforce hard constraints that the LLM cannot override, no matter how "jailbroken" it gets. So I built Cordum. It’s an open-source…
Jan 2026 · github.com · 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 →