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AI · alternatives · 2026

24 alternatives to Kaval

Verify what your AI agent believes before it takes action

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 1 we have checked on their own sites, 1 of them free or with a free tier.

  1. 1
    Kastrafree tier, from $19.99/mo▲332

    Hi 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 →

  2. 2
    Konfide▲77

    AI Agents with a human expert for hire

    Apr 2026 · konfide.ai · its alternatives →

  3. 3
    Kakunin▲20

    Cryptographic identity for autonomous AI agents

    May 2026 · kakunin.ai · its alternatives →

  4. 4

    Models matter. Context matters more. Give your agent a plan.

    Jun 2026 · deepworkplan.com · its alternatives →

  5. 5
    cto bench▲125

    The ground truth code agent benchmark

    Dec 2025 · cto.new · its alternatives →

  6. 6
    Arkiv▲67

    EU AI Act compliance system built for design agencies

    May 2026 · arkived.io · its alternatives →

  7. 7

    The memory layer for AI agents

    Jul 2026 · kitforai.com · its alternatives →

  8. 8

    Check AI answers for missed risks before you act

    Jun 2026 · agent-proof.netlify.app · its alternatives →

  9. 9
    Kessa▲3

    Prove who authorized your AI agent's actions

    Aug 2026 · kessa.gneiss-group.com · its alternatives →

  10. 10
    Fact0▲18

    The universal fact layer for AI agents

    Jun 2026 · fact0.io · its alternatives →

  11. 11
    ARGUS▲9

    Catch Silent Failures in your AI Agent Pipelines

    Jun 2026 · arguslabs.in · its alternatives →

  12. 12

    On March 4, 2026, my Claude Code agent wrote a staging URL into a production config file — three times, 41 minutes apart. Syntax was valid, no error thrown. My logs showed every action. All green. The problem was invisible because nothing had recorded what the agent intended to do before it acted — only what it actually did. K9 Audit fixes this with a causal five-tuple per agent step: - X_t: context (who acted, under what conditions) - U_t: action (what was executed) - Y*_t: intent contract (what it was supposed to do) - Y_t+1: actual outcome - R_t+1: deviation score (deterministic — no LLM,…

    Mar 2026 · github.com · its alternatives →

  13. 13

    Cryptographic proof — before execution, not after

    Apr 2026 · cloud.authproof.dev · its alternatives →

  14. 14

    Your AI validates bad decisions. These tools challenge them.

    Jun 2026 · reasoning.services · its alternatives →

  15. 15

    Prove real AI agency and P&L impact not just experimentation

    Jul 2026 · askledger.org · its alternatives →

  16. 16
    Etch▲5

    Trace, replay, and verify every AI agent decision.

    Jul 2026 · etch.systems · its alternatives →

  17. 17

    Your AI has your code's text, never its map. Fix that.

    Jun 2026 · luuuc.github.io · its alternatives →

  18. 18

    Check every AI agent action before it runs

    May 2026 · agentwing.gpmai.dev · its alternatives →

  19. 19

    AI agents act fast. OnLeash decides what gets through.

    Jul 2026 · its alternatives →

  20. 20

    Verified memory for AI coding agents that proves it's true

    Jul 2026 · aidimag.com · its alternatives →

  21. 21

    Trust AI, optimize

    2023 · aiproval.my.canva.site · its alternatives →

  22. 22KL

    I built a platform where you solve tasks together with AI agents (Claude Code, Codex, Cursor — any agent via SSH). Isolated sandbox environments, automated test scoring, global leaderboard. Tasks range from easy (AI one-shots it) to hard (requires human help). Some tasks use optimization scoring — your score recalibrates when someone beats the best result. Built it in 6 days as a solo founder. 100% of code written with Claude Code and Codex. Stack: Go, Next.js, K8s, Supabase, Stripe.

    Mar 2026 · kagento.io · its alternatives →

  23. 23

    Fight misinformation with AI agents with 10K free tokens

    2025 · verisquad.com · its alternatives →

  24. 24

    Validate your startup idea in seconds using AI

    2024 · token-trade.io · 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 →