AI agent security gateway

The AI agent security gateway for every model, tool, and decision.

Protexct is the control plane for production AI agents. It inspects LLM and MCP traffic, blocks prompt injection, enforces runtime policy, and leaves behind evidence your team can act on.

One gateway for model requests, tool calls, credentials, policy, and audit evidence.

Protexct/Security events

Security events

Activity from protected agents

Live visibility across protected agents

What Protexct does

A security layer for agents that can take action.

Most AI security products stop at a model prompt. Protexct protects the whole execution path: the context an agent reads, the MCP tools it discovers, the credentials it receives, and the action it tries to take.

01

AI agent security gateway

Route model and tool traffic through one enforcement point. Apply identity, rate, content, and action policy without rewriting the agent you already run.

02

Prompt injection detection

Scan inputs, retrieved context, tool descriptions, and outputs before an injected instruction can change an agent’s course of action.

03

MCP protocol security

Inspect MCP discovery, tools, parameters, and results across remote and local transports. Enforce a registry and stop poisoned tools at the boundary.

04

Self-improving threat models

Turn novel attacks into regression tests. Nightly red teaming and measured model updates help controls improve as the threat distribution moves.

05

Compliance reports

Keep policy, identity, prompt, tool activity, and outcome in an immutable event trail ready for investigation and evidence export.

Production proof

Measured security, not vague assurance.

Fast enough to stay in the request path. Detailed enough to tell your team exactly what happened after a decision.

99%

Detection accuracy (F1 0.9880)

<30 ms

CPU inference on the hot path

20,808

Training examples in the threat model

30/30

Prompt-injection benchmark cases blocked

Detection benchmark measured against Protexct's prompt-injection evaluation suite. Results vary by model, policy, and traffic profile.

How it works

One request path. Five connected controls.

Protexct sits between the agent and the model provider. It makes the security decision in the request path, then records the context needed to understand and improve that decision.

  1. 01

    Agent

    Your agent sends a model request or tool action.

  2. 02

    Protexct Gateway

    Identity, credentials, rate limits, and routing are applied.

  3. 03

    GUARD scan

    Prompts, context, tool metadata, and outputs are classified.

  4. 04

    OPA policy

    Allow, redact, block, or request human approval.

  5. 05

    Upstream LLM

    Only an authorized, policy-compliant request continues.

Inspect

Model prompts, retrieved context, tool definitions, credentials, and responses are visible at the boundary.

Decide

GUARD and OPA can allow, redact, block, or pause for a human before an action runs.

Learn

Traces and red-team findings become regression tests for the next measured threat-model update.

Built for consequential workflows

Security that fits the team shipping the agent.

Start with a single service boundary, then give security, compliance, and platform teams the same operational view.

Fintech

Keep money-moving agents inside policy.

Protect underwriting, support, and operations agents from prompt injection while enforcing tool scopes, approval gates, and durable evidence for every sensitive action.

Healthcare

Give clinical copilots a safer boundary.

Inspect retrieved context and tool calls, redact sensitive data, and preserve a traceable record of what the agent saw, decided, and shared.

Enterprise AI teams

Ship agents without creating a new blind spot.

Standardize security across providers and frameworks with one gateway, a shared MCP registry, tenant-aware policy, and findings your platform team can act on.

Why teams choose Protexct

The agent security layer competitors leave between the lines.

A concise view of the controls that matter when an agent can read data, call tools, and change the world.

CapabilityProtexctLakeraNeuralTrustLasso
Gateway-native request enforcementYesPartialPartialNo
Prompt injection detectionGUARD + policyYesYesLimited
MCP protocol securityDeep controlsLimitedLimitedNo
Self-improving threat modelsRed team + regression loopNoNoNo
Tenant policy and approvalsYesLimitedLimitedNo
Compliance-ready event evidenceBuilt inAdd-onAdd-onLimited

Comparison reflects publicly described product focus and Protexct's current gateway capabilities; evaluate each platform against your own deployment and policy requirements.

Pricing that starts with the gateway

Start protecting agents before the risk compounds.

Every plan includes the AI security gateway. Scale into approvals, isolation, extended evidence retention, and dedicated infrastructure when you need it.

Self-hosted

$0forever

Run the full gateway in your infrastructure with your own storage.

Pro

$99/ month

Production controls for 5 users, 10 API keys, and 100K requests/month.

Business

$399/ month

Fleet governance with approvals, isolation, 50 keys, and 100K requests/day.

Enterprise

Customtailored

Dedicated infrastructure, model forks, and tailored retention.

Need a detailed comparison, deployment guidance, or enterprise terms?

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