Control What AI Agents Can Actually Do.
Poligin is the zero-trust Policy Enforcement Gateway (PEP) and Decision Engine (PDP) for autonomous AI agents and Model Context Protocol (MCP) tool-calling systems. Intercept, normalize, and govern agent actions with sub-millisecond latency before they touch production systems.
AI agents don't just answer questions. They execute consequential actions.
Traditional web application firewalls and network API gateways enforce perimeter rules at coarse service boundaries. But autonomous agents compose dynamic JSON tool calls at runtime. Without semantic policy interception, agents authorize their own actions.
Coarse Gateways Miss Semantics
API gateways inspect HTTP routes like /api/v1/tools. They cannot inspect dynamic JSON tool arguments, nested SQL parameters, or agent context inside MCP payloads.
Prompt Injection Bypasses Prompts
System prompts and model-level instructions are not security boundaries. Adversarial prompt injections cause models to attempt catastrophic unauthorized tool calls.
Agents Must Not Self-Authorize
The agent decides what to attempt. An independent, fail-closed policy enforcement engine must decide whether it is permitted to execute.
| Security Dimension | Traditional API Gateway / WAF | Agent System Prompts | Poligin Zero-Trust Gateway |
|---|---|---|---|
| Enforcement Point | HTTP Endpoint / URL path | Probabilistic LLM token generation | ✓ Inline MCP Tool Interception (PEP) |
| Deterministic Latency | Fast (no semantic inspection) | Slow (seconds for LLM self-eval) | ✓ Sub-Millisecond AST DSL Compiler |
| Failure Posture | Fail-open or generic 502 | Fail-open (model hallucination) | ✓ Fail-Closed by Design (Zero Trust) |
| Audit Integrity | Flat server logs (editable) | Chat transcript logs | ✓ Immutable HMAC-SHA256 Hash Chain |
| Pre-Deploy Testing | Manual test requests | Prompt red-teaming | ✓ Historical Replay & Version Diff |
Strict Separation: Policy Enforcement (PEP) & Decision Point (PDP).
Poligin deploys as lightweight, containerized microservices adhering to the proven XACML/Zero-Trust architectural standard. Protocol translation is completely isolated from policy compilation and audit governance.
(Subject, Action, Resource, Context), and provides downstream circuit breaking.
Enterprise Security Controls Built for Rigorous Audits.
Purpose-built for Chief Security Officers and Enterprise Architects who require mathematical accountability, sub-millisecond evaluation, and zero-downtime policy governance.
Tamper-Evident HMAC-SHA256 Audit Ledger
Every single authorization decision is linked into a continuous cryptographic hash chain starting from an immutable genesis hash:
GenesisHash ➔ Record[1] ➔ Record[N].
Zero-Downtime CI/CD: Diff & Historical Replay
Test policy revisions against real traffic before promoting them. Compare candidate draft policies side-by-side with production via /v1/decisions/diff, or replay actual historical agent production traces via /v1/decisions/replay to eliminate regressions.
AI Safety Analyzer & Prompt Injection Guardrails
When policies govern generative agents, static rules are paired with an embedded AI Risk Analyzer (Ollama local, OpenAI, Anthropic, Bedrock). Evaluates prompt injection, credential extraction, and tool call parameter volume with fail-closed timeout thresholds.
Dynamic Tool Parameter Normalization
Heterogeneous downstream tools use inconsistent parameter formats. Poligin's mapping engine maps arbitrary JSON arguments into normalized semantic triples: (Subject, Action, Resource, Context) using flexible regex and template mapping.
Customer Admin Console & Microsecond Diagnostic Traces.
Single-pane-of-glass administrative UI for SecOps and platform teams to monitor agent fleet activity, manage version lifecycles, and debug authorization decisions down to the microsecond.
customer.delete (High Risk)
16 calls · 12 DENIED
database.execute_query
13 calls · 10 ALLOWED
server:destroy (Infra Guardrail)
5 calls · 5 DENIED
file.read (Standard Ops)
27 calls · 27 ALLOWED
Enforce Zero-Trust Autonomy Where Consequences Matter.
Deploy Poligin in front of high-leverage agent workflows to prevent financial losses, data leakage, and infrastructure destruction.
Financial Operations
Bound autonomous refunds, wire transfers, and billing changes. Enforce dual-approval or unconditional denial when amounts exceed configurable thresholds.
Customer Service Agents
Permit customer data lookups and support ticket annotations while strictly blocking account deletions, bulk exports, and unauthorized tier upgrades.
DevOps & Coding Agents
Allow agents to read repository files and run tests, while preventing direct writes to production secrets, database migrations, or cloud resource termination.
Enterprise Data Agents
Govern access to data lakes and enterprise warehouses. Automatically enforce tenant isolation, row-level restrictions, and PII masking.
Put a Zero-Trust Policy Boundary Around Your AI Agents.
Deploy the Poligin MCP Gateway into your VPC or Kubernetes cluster in minutes. Protect your sensitive tools, establish fail-closed guardrails, and achieve tamper-evident audit compliance.