Openlayer Guardrails
Openlayer Guardrails: A free gateway and SDK layer for prompt, data, and output controls. Ranked #16 of 30 in LLM Security Tools by our editors (7.8/10); pricing: Free plan; best for teams wanting free gateway-based guardrails.
At a glance
- Editor score7.8 / 10
- PricingFree plan
- Best forTeams wanting free gateway-based guardrails
- Free planYes
- Prompt injection defenseYes
- Founded2021
- Facts checked21 Sep 2026
Where it wins
- Free Basic plan includes injection and jailbreak defense
- Blocks or redacts PII and PHI in live AI traffic
- Gateway and SDK deployment with audit evidence
Where it doesn't
- Verified integration coverage is limited
- Enterprise features require custom pricing
- Advanced access and deployment controls require Enterprise
Our verdict on Openlayer Guardrails
Openlayer Guardrails is a runtime security feature for AI applications. It inspects live prompts, retrieval context, tool-related interactions, and model responses to address prompt injection, jailbreaks, sensitive-data exposure, and harmful content. Policies can block, redact, escalate, or route violations for review, with enforcement decisions recorded as audit evidence. Its audience includes engineering, security, compliance, and regulated enterprise teams building AI applications through web or API environments.
The free Basic plan combines automatic CI/CD, an AI test library, observability and tracing, alerting integrations, 20,000 inferences per month, and CLI, SDK, and API access. Its guardrail coverage includes prompt-injection and jailbreak defense, inline PII and PHI detection and blocking, sensitive-data redaction, harmful and toxic output filtering, and configurable enforcement policies. This makes the product particularly relevant when teams want to introduce gateway-based controls without starting with a paid tier. Enterprise adds team access controls, on-premise deployment, explainability, SAML SSO, a 99.99% SLA, and advanced support, with custom pricing.
Deployment can use Openlayer’s Gateway or SDK, while the deployment options include cloud/VPC and on-premise environments. That hybrid model fits teams with different application architectures or deployment requirements, and the recorded enforcement evidence supports evaluation and compliance workflows. The product is more focused on runtime guardrails and evidence than on broad ecosystem coverage; its integration coverage is limited, even though Basic includes alerting integrations. Choose Openlayer Guardrails if free gateway or SDK controls, data blocking, output filtering, and configurable enforcement are the priority. Teams that need wider verified integrations should consider an alternative.
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Openlayer Guardrails pricing
All 2 Openlayer Guardrails plans and prices →
Openlayer Guardrails fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Not verified |
| Prompt injection defense | Yes |
| PII redaction | Yes |
| Secrets detection | Not verified |
| Output guardrails | Yes |
| Model-abuse detection | Not verified |
| Deployment model | Hybrid |
| Deployment | Cloud, Self-hosted |
| Platforms | Web |
| Compliance & security | SOC 2, GDPR, HIPAA, SSO/SAML |
| Support | Community, Docs |
| Built for | Mid-market, Enterprise (editorial estimate) |
| Pricing | Free plan (source) |
| Website | openlayer.dev |
| Facts checked | 21 Sep 2026 |
Alternatives to Openlayer Guardrails
- Guardrails AIA broad open-source toolkit for runtime LLM validation, policy enforcement, and risk detection.9.3
- LLM GuardA self-hosted toolkit for scanning prompts, outputs, PII, secrets, and LLM risks.9.2
- NVIDIA NeMo GuardrailsA broad, self-hosted toolkit for controlling inputs, outputs, tools, and AI-agent behavior.9.1
See all Openlayer Guardrails alternatives →
Also Ranked In
Openlayer Guardrails is ranked in 2 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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