Alternatives to Steerling

Open-source red-team toolkit for AI agent prompt injection, jailbreak, and goal hijacking testing

Andon Labs runs real businesses with AI operators and publishes field evals of long-horizon agent behavior.

Agentic law platform that encodes legal rules into verifiable AI agents for banks, asset managers, and insurers.

ElevenAgents Guardrails puts real-time safety checks on ElevenLabs voice agents — prompt-injection blocking, reply screening, and custom policy enforcement

ECC is an open-source agent harness operating layer that gives Claude Code, Codex, Cursor, OpenCode and Kimi shared skills, memory,

PromptArmor delivers AI vendor risk intelligence that flags which third-party tools run AI and where your data leaks.

Mindgard is AI red teaming that reconnoiters, exploits, and retests vulnerabilities in production AI agents and models.

Enterprise AI security platform that discovers agents and MCP servers, red-teams them, and enforces policy inline at the gateway.

Abundant builds long-horizon RL environments, anti-cheat verifiers and datasets that train and test AI agents on multi-hour work.

OpenAI's archived early access for safety testing: pre-release reasoning model access for vetted safety researchers, closed January 10,

Free, citable AI incident database: search, filter and export documented real-world AI harms.

A free, vendor-neutral top 10 of agentic AI security risks, with a mitigation strategy attached to each threat.

Open-source CLI that red-teams AI agent prompts and audits MCP servers with real attack payloads.

agentsh enforces syscall-level policy for AI coding agents — file, network, and process control that holds no matter what the prompt says.

Alice red-teams AI models and agents before launch, then runs custom guardrails in production to keep them safe.

Overseer AI validates LLM outputs in real time, returning an isAllowed boolean plus safe replacement text before anything risky reaches your users.

Automated red teaming and LLM vulnerability scanning that runs inside your CI/CD pipeline

Agent enablement platform that versions, scans and evaluates the skills your coding agents run.

Runtime security layer that inspects what goes into your AI agents and controls what comes out

Traccia is an AI agent control plane that traces, costs, evaluates and enforces policy on agents you already run.

Securiti unifies DSPM, data privacy automation, and AI security on one DataAI Command Graph.

Exogram is a permanent AI memory vault that gives ChatGPT, Claude and Gemini one shared, encrypted context graph.

Arcade AI is the MCP authorization runtime that governs, executes, and audits every action your AI agents take.

Self-hosted AI agent governance with an access map, Cedar policy enforcement and a signed audit ledger for Claude Code, Codex, Gemini CLI

Runtime authorization for AI agents — allow, deny, redact, or hold every action before it executes

Cycles is runtime authority for AI agents: it denies overspending tool calls before they execute, self-hosted under Apache 2.0.

Fail-closed human approval layer that freezes high-risk AI agent actions at the hook seam and records a signed audit trail.

Contextual security guardrails that inspect and block risky tool calls from AI agents and MCP servers.

Mercury Agent is a self-hosted terminal AI agent with permission-gated tools and a local Second Brain memory.

Pipelock is an open-source agent firewall that mediates MCP, HTTP and WebSocket traffic and signs offline-verifiable receipts.