Best Security & Privacy Alternatives to Arcjet in 2026
Arcjet is a security SDK and platform that runs inside your code to stop bots, abuse and prompt injection and to enforce policy on AI agents' tool calls. Its new custom-trained models include Himalia 1 for prompt injection and Thebe 1 for coding agents.
Free alternatives only (4)Not sure if Arcjet is the right fit? TechLogHub has ranked 12 genuine Security & Privacy alternatives, led by Mercury and shim-cli — matched by real overlap in use case, audience, and pricing, not just category.
12 alternatives to Arcjet
Mercury is Inception's family of diffusion large language models, served through an OpenAI-compatible API. Mercury 3, launched in October 2026, is the company's flagship reasoning model with a 1M-token context.
shim-cli is a free, Apache-2.0 command-line tool that hooks into Claude Code, Codex, Copilot CLI and VS Code to find secrets and personal data in what an agent sends, mask it where the client allows, and report session tokens and cost.
Jev by TypeSafe AI is a model API that takes state plus typed questions and returns Choice, Score and true/false answers with calibrated probabilities instead of generated text.
OpenText Fortify SAST (Static Code Analyzer) scans source code for security vulnerabilities across 44+ languages per OpenText, with CI/CD and IDE integrations and AI add-ons for logic flaws and fix suggestions.
Maritime is a YC-backed cloud that gives every AI agent its own isolated machine: persistent agent boxes that sleep and wake in about a second, per-second sandboxes and swarms, and Linux desktops, Windows desktops and Android phones an agent can see and control, driven by API, SDKs, CLI or MCP.
Vaani is a Bengaluru-built platform and REST API for voice AI agents that place and answer phone and web calls, call your tools mid-conversation and send transcripts, summaries and extracted details back to your app through webhooks.
1Password is a password and secrets manager for individuals, teams and enterprises. Its new 1Password for Agents lets personal AI agents sign in to accounts on a user's behalf without ever seeing the password.
Gleap is an AI-native help desk for software teams that combines in-app bug reporting, session replay, live chat and a roadmap with Kai agents, including Kai Resolve, which investigates hard tickets using logs and read-only code access.
Tower is a desktop Git client for Mac and Windows from fournova; Tower 18 for Mac adds a rewritten gittower command-line tool and an Agent Skill so AI coding agents can open their changes in Tower for review.
heal.dev is an AI agent that runs an application in a production-like sandbox to find bugs, performance regressions and runtime security issues. Each defect it files comes with a failing test that reproduces it.
BAND is interaction infrastructure for AI agents: agents built on different frameworks join shared rooms where they exchange context, delegate work and ask humans for approval. Band Desktop brings this to local coding agents such as Claude Code, Codex and OpenCode.
MiniMax is a Shanghai AI company offering its own text, speech, video and music models through an API platform, plus MiniMax Code and other apps. Its new M3.1 Flash model targets agentic and coding work at $0.15/$0.60 per million tokens.
Quick comparison
| Product | Match | Pricing | Rating | Best for | Visit |
|---|---|---|---|---|---|
| Mercury | Related | Mercury 3 - $0.20 input / $0.70 output per 1M tokens (launch: 50% off, $0.10 / $0.35); cached input 90% off | — | Developers | Visit |
| shim-cli | Related | shim-cli - Free, open source (Apache-2.0), no account | — | Developers | Visit |
| Jev | Related | Usage-based - $42 per billion input tokens ($0.042 per million); output tokens free | — | Developers | Visit |
| OpenText Fortify Static Code Analyzer | Related | Fortify SAST - contact OpenText for pricing | — | Security Engineers | Visit |
| Maritime | Related | Starter - $20/mo (becomes $20 usage credit) - 5 machines awake at once, 7-day free trial | — | Developers | Visit |
| Vaani | Related | Pay as you go - ₹1/min platform fee + chosen LLM/TTS/STT/carrier usage (prepaid wallet) - 2 concurrent calls, unlimited agents and knowledge bases, 30-day retention, 99.5% uptime SLA | — | Developers | Visit |
| 1Password | Related | Individual - $3.99/month billed yearly (promotional $2.99 first year for new customers) - 14-day free trial | — | Developers | Visit |
| Gleap | Related | Starter - $29/mo billed yearly ($35 monthly) - 1 seat, 1 project, live chat and bug reports | — | Customer Support Teams | Visit |
| Tower | Related | Basic - $69 per user per year - 1 user, macOS and Windows, pull requests | — | Developers | Visit |
| heal.dev | Related | Free trial - $0 - no credit card required | — | Developers | Visit |
| BAND | Related | Free - $0 - 1 personal non-commercial user, up to 20 remote agents, 250 active rooms, 2-week retention | — | Developers | Visit |
| MiniMax | Related | API pay-as-you-go - MiniMax-M3.1-Flash $0.15/1M input, $0.60/1M output, $0.015/1M cached input | — | Developers | Visit |
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Frequently asked questions
What are the best alternatives to Arcjet?
Based on shared use cases, audience, and pricing, TechLogHub ranks Mercury, shim-cli, and Jev and 9 more as the closest alternatives to Arcjet in the Security & Privacy category.
Why look for an alternative to Arcjet?
Arcjet is built around Web apps and AI agents face bots, abuse, prompt injection and unsafe tool calls, and traditional edge firewalls lack the application context to judge them; Arcjet makes these decisions inside the app or agent with full context. Teams look for alternatives when they need a different pricing model, a broader feature set, or a tool that better fits a specific audience — that's exactly what the comparison below helps you evaluate.
Is there a free alternative to Arcjet?
Yes — shim-cli and BAND offer a free, freemium, or open-source plan among the alternatives listed below.
How does TechLogHub rank Arcjet alternatives?
TechLogHub ranks alternatives by real overlap in use case, target audience, tech stack, and pricing model with Arcjet — not by who paid for placement. A product only appears here when it shares genuine similarity, not just the same category.