Arthur Shield
A monitoring and governance platform for AI and machine learning applications
- Also known as
- arthur-shield
Available worldwide · Popular in: US
What is Arthur Shield?
An open-source tool designed to enforce safety guardrails in AI/ML workloads, detect quality issues like data leakage and hallucinations in real-time, manage prompts across applications, and monitor model performance and RAG pipelines.
Arthur Shield pricing
Plans, per-tier features and add-ons, dated and linked to live pricing. Pricing changes often; always verify at source before you rely on it.
Free tier available; enterprise pricing by quote
Free
FreeFree version of Arthur Platform for monitoring and governing AI workloads
Enterprise
Contact salesEnterprise version with enhanced performance, additional features, and capabilities
What Arthur Shield does
The capabilities that matter for ai guardrails, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Architecture model
- Managed cloud inline proxy
- Prompt injection and jailbreak blocking
- ✓
- Inbound pii and credit card masking redaction
- ✓
- Outbound toxicity and competitor mention blocking
- ✓
- Hallucination and topical off brand drift detection
- ✓
- Sub 50ms latency guarantees for proxy routing
- ✗
- Custom regex and deterministic denylist rulesets
- ✓
- Streaming token interception and chunked eval
- ✓
- Rag retrieval chunk poisoning defense
- ✓
- Zero data retention and prompt privacy guarantees
- ✗
- SOC2 type ii
- ✓
- ISO 27001
- ✗
- Pricing model
- Flat enterprise tier
Platform & deployment
Independently observed- Web
- Cloud / SaaS
- On-premise
- Self-hosted
Integrations (7)
Independently observed- OpenTelemetry
- Snowflake
- AWS Bedrock
- Google Vertex AI
- AWS
- MCP
- Claude Code
Arthur Shield FAQ
Common questions about Arthur Shield, answered from independent, dated evidence.
What is Arthur Shield?
A platform that locates and provides continuous monitoring of AI agents deployed across cloud and on-premises environments, offering security controls, audit capabilities, behavioral analysis, and policy enforcement. It is indexed under AI Guardrails.
Source: https://www.arthur.ai
How much does Arthur Shield cost?
Arthur Shield does not publish its prices. Pricing is quoted on request, across 2 plans (Free and Enterprise), so the figure depends on your seat count and requirements. We record this as a pricing-transparency signal rather than guessing a number. Pricing changes often, so verify at source before relying on it.
Source: https://www.arthur.ai
What platforms does Arthur Shield support?
We have confirmed browser-based access to Arthur Shield. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.
Can Arthur Shield be self-hosted?
Yes. Arthur Shield can be deployed cloud / SaaS, on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.
Source: https://www.arthur.ai
What does Arthur Shield integrate with?
We have confirmed 6 integrations for Arthur Shield, including OpenTelemetry, Snowflake, AWS Bedrock, Google Vertex AI, MCP and Claude Code. This is what we could verify from public sources, so the vendor may support others we have not indexed.
What security certifications does Arthur Shield have?
We have independently confirmed SOC 2 and GDPR for Arthur Shield. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Arthur Shield not holding them. Always confirm compliance directly before you rely on it.
Source: https://www.arthur.ai/blog/eu-ai-act-compliance-for-ai-agents
Where is Arthur Shield available?
Arthur Shield is available worldwide. Its primary market is the United States.
Arthur Shield alternatives
Other ai guardrails we track, ranked by the same independent score.
- Enkrypt AIEnterprise AI governance and security through real-time policy enforcementmedium · 53%
- HiddenLayerA comprehensive security platform purpose-built for AI systems and applicationslow · 29%
- NVIDIA NeMo GuardrailsOpen-source framework for adding safety controls to AI-powered conversation systemslow · 29%
- Lakera GuardAI security platform that detects and blocks threats to large language model applications in real-timemedium · 56%
- Llama GuardContent moderation models for safeguarding AI system interactionslow · 25%
- RebuffA system that identifies and blocks prompt injection attacks and improves its defenses based on detected attackslow · 24%
Compare Arthur Shield
Side by side against other ai guardrails, attribute by attribute, with a source on every value.
The vioscaleAI score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Arthur Shield, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Security posture | 45 | 0.12 | 5.5 | ✓ |
| Pricing transparency | 100 | 0.05 | 5.4 | ✓ |
| Price level | 100 | 0.04 | 4.1 | ✓ |
| Capabilities | 92 | 0.04 | 3.5 | ✓ |
| Integrations | 26 | 0.04 | 1.2 | ✓ |
| Reliability | 0 | 0.07 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 7 items | mediumsource · 2026-09-10 · 60% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Iso 27001: No · Soc2 type ii: Yes · Pricing model: flat_enterprise_tier · Architecture model: managed_cloud_inline_proxy · Rag retrieval chunk poisoning defense: Yes · Prompt injection and jailbreak blocking: Yes | mediumsource · 2026-10-12 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 7 | mediumsource · 2026-08-25 · 60% |
Market
| Attribute | Value | Evidence |
|---|---|---|
| Availability | PrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: … | mediumsource · 2026-08-25 · 50% |
Pricing
Security
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