AI · alternatives · 2026
24 alternatives to Sentinely
Runtime security for AI agents. 3 lines integration.
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 3 we have checked on their own sites, 3 of them free or with a free tier.
- 1
Angy▲88Multi‑agent pipelines w/ AI‑driven scheduling + safety check
Mar 2026 · alice-viola.github.io · its alternatives →
- 2
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 →
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Arcjetfree tier, from $25/mo▲430Secure the AI agents you're building at runtime
Sep 2026 · arcjet.com · its alternatives →
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Many teams connecting LLMs to external tools eventually encounter the same architectural issue: as more tools and agents are added, the integration pattern becomes an N×M mesh of direct connections. Each agent implements its own auth, retries, rate limiting, and logging; each tool needs credentials distributed to multiple places and observability becomes fragmented. We built LLM gateway with this goal to provide a single place to manage authentication, authorization, routing, and observability for MCP servers, with a path toward a more general agent-gateway architecture in the future. The…
Dec 2025 · truefoundry.com · its alternatives →
- 5
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 →
- 6
AI agents that find, validate, and fix every vulnerability
Jun 2026 · getastra.com · its alternatives →
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Agentlyfree tier, from $33/mo▲336Agently is an AI Work OS where documents, tasks, team chat, and integrations are fully interconnected, and AI employees operate inside that shared workspace. Instead of prompting AI in isolation, agents can read project context, turn strategy docs into tasks, coordinate with teammates, run research/outreach/content workflows, update boards, and push results back into the system or external tools. The workspace acts as persistent memory, so work continues instead of resetting every prompt. Happy to answer any questions
Jul 2026 · agently.dev · its alternatives →
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Latchkey▲122Hi HN, At Imbue, we’ve been following the rapid developments in the agent landscape and noticed that the way agents interact with third-party services on users’ behalf often leaves a lot to be desired. Integrations are ad hoc, complicated, context-heavy, and either unfriendly to non-technical users or tied to a lock-in of some sort. We‘re experimenting with a command-line tool, Latchkey, that could be used by local agents targeted at non-technical users while avoiding remote intermediaries. As far as we know, this is the only existing approach at the intersection of these two goals. Core…
Mar 2026 · github.com · its alternatives →
- 9
Solution to AI Agent prompt injection and hijacking attacks
Apr 2026 · sentinel-gateway.com · its alternatives →
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NervePay▲74Give AI agents identity, secrets vault & analytics
Feb 2026 · nervepay.xyz · its alternatives →
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Sentinel is an open-source AI QA agent that reads your repo, derives the real business flows, and tests them end to end across the frontend and the backend.
Jul 2026 · blog.simbastack.com · its alternatives →
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Hi HN, I am shubham a 3d artist who learned coding in college as an I.T. graduate know logics but not an expert as i just wanna try my hands on to ai So i built Resilient Workflow Sentinel this is offline ai agent which classify urgency (Low,Medium and HIgh) and dispatches to the candidates based on availability Well i want an offline system like a person can trust with its sensitive data to stay completely locally Did use ai to code for speeding and cutting labor. Its works on RTX 3080 system (this is an basic affordable setup not heavy ai machinery) which i want it to make it reliable…
Feb 2026 · github.com · its alternatives →
- 14
AI-powered website security scanner for real vulnerabilities
Feb 2026 · its alternatives →
- 15
Guard+Memory+Eval—reliable, auditable, self-improving Agents
Jun 2026 · github.com · its alternatives →
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AI Hive ▲53Build, deploy, and run all your AI agents in one platform.
May 2026 · app.aihive.global · its alternatives →
- 18
Open-source AI video intelligence for secure environments
Feb 2026 · abgroupglobal.com · its alternatives →
- 19
Panguard.AI▲20Open-source malware scanner and runtime guard for AI agents
Jul 2026 · panguard.ai · its alternatives →
- 20
Fix flaky tests, regressions and unclear failures with AI
Dec 2025 · sentinelqa.com · its alternatives →
- 21
AxioRank▲9The security gateway for AI agents | identity, policy, audit
Jun 2026 · axiorank.com · its alternatives →
- 22
A local-first Mac security auditor that roasts your code.
Jun 2026 · accounts.google.com · its alternatives →
- 23
Adrian▲9The open-source runtime security toolkit for your agents
May 2026 · github.com · its alternatives →
- 24
Local security & compliance scanner for AI agents
Jul 2026 · safeclaude.net · 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 →