Splunk Guardrails
Splunk Guardrails: A framework-agnostic control plane for evaluating and blocking risky agent actions. Ranked #8 of 23 in AI Guardrail Software by our editors (8.3/10); pricing: Free plan; best for framework-agnostic enterprise agent governance.
At a glance
- Editor score8.3 / 10
- PricingFree plan
- Best forFramework-agnostic enterprise agent governance
- Free planYes
- Paid from$100/unit/mo
- Prompt injection defenseYes
- Facts checked21 Sep 2026
Where it wins
- Blocks prompt injection, PII, PHI, PCI leakage, and tool misuse
- Supports VPC, on-premises, and air-gapped deployment
- Integrates with major agent SDKs and frameworks
Where it doesn't
- Paid access starts at $100 per month with annual billing
- Pricing is presented under Splunk Agent Observability
- Python is the listed SDK language
Our verdict on Splunk Guardrails
Splunk Guardrails provides runtime controls for AI agents and generative AI applications. It evaluates proposed actions between an agent and its tools, then allows, blocks, or redirects them according to configured policies. The product is suited to organizations governing agents across multiple frameworks, especially teams that need protection against prompt injection, regulated-data leakage, tool misuse, and off-path actions. A centralized, framework-agnostic control plane helps apply consistent rules across deployments.
The Free edition is listed for Splunk Agent Observability. The paid Splunk Agent Observability plan starts at $100 USD per month per 1.2 million spans with annual billing. That plan includes 500 million Luna tokens per year, 5 Luna fine-tuning runs per year, and availability in Observability Cloud and self-hosted deployments. The pricing structure fits organizations that want to connect guardrails with Splunk's observability environment, while teams evaluating the product should account for the plan being presented through Agent Observability rather than as a separately priced Guardrails tier.
Integration and deployment coverage are central strengths. Splunk Guardrails supports the OpenAI SDK, OpenAI Agents SDK, LangChain and LangGraph, Microsoft Agent Framework, Pydantic AI, Strands Agents, CrewAI, Google ADK, A2A, and OpenTelemetry. Its controls include configurable deny, steer, and observe actions, runtime evaluation of proposed tool calls, and audit logging of guardrail decisions. Deployment options include web, API, self-hosted, VPC, on-premises, and air-gapped environments. Choose it for multi-framework governance and controlled deployment; consider another option if you need a pricing model separate from Agent Observability or an SDK language beyond Python.
Your product? Our editors can test Splunk Guardrails in depth and publish a review, labelled as paid · from $149/mo →
Splunk Guardrails pricing
All 2 Splunk Guardrails plans and prices →
Splunk Guardrails fact sheet
| Free plan | Yes |
|---|---|
| Paid from | $100/unit/mo |
| Deployment | Hybrid |
| Prompt injection defense | Yes |
| PII detection | Yes |
| Jailbreak detection | Not verified |
| Custom policies | Yes |
| SDK languages | Python |
| Deployment | Cloud, Self-hosted |
| Platforms | Web |
| Support | Docs |
| Built for | Mid-market, Enterprise (editorial estimate) |
| Integrations | 10 integrations: OpenAI SDK, OpenAI Agents SDK, LangChain and LangGraph, Microsoft Agent Framework, Pydantic AI, Strands Agents … |
| Pricing | Free plan (source) |
| Website | splunk.com |
| Facts checked | 21 Sep 2026 |
Splunk Guardrails integrations
Splunk Guardrails lists 10 integrations on its own site.
- OpenAI SDK
- OpenAI Agents SDK
- LangChain and LangGraph
- Microsoft Agent Framework
- Pydantic AI
- Strands Agents
- CrewAI
- Google ADK
- A2A
- OpenTelemetry
Alternatives to Splunk Guardrails
- Enkrypt AI GuardrailsBroad runtime controls for teams securing production AI systems.9.4
- VotalAIBroad hybrid guardrails for prompts, agents, data, tools, and audit workflows.9.2
- OpenAI GuardrailsA flexible, OpenAI-focused guardrail framework for validating LLM workflows.9.0
See all Splunk Guardrails alternatives →
Splunk Guardrails vs the competition
- Splunk Guardrails vs Enkrypt AI Guardrails
- Splunk Guardrails vs VotalAI
- Splunk Guardrails vs OpenAI Guardrails
- Splunk Guardrails vs Guardrails AI
- Splunk Guardrails vs NVIDIA NeMo Guardrails
- Splunk Guardrails vs Amazon Bedrock Guardrails
Compare Splunk Guardrails with any tool side by side →
Used Splunk Guardrails? Be the first to review it
The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used Splunk Guardrails for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.
Write a reviewTwo minutes · verified accounts only · read by an editor before it appears
Featured on iTechGuides
Splunk Guardrails is listed in our AI Guardrail Software directory. Add the badge to your site — it links back to this page.
<a href="https://www.itechguides.com/products/splunk-guardrails/"><img src="https://www.itechguides.com/best/badge/splunk-guardrails.svg" alt="Featured on iTechGuides" width="230" height="46"></a>
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Last updated · How we research and update