Prompt Inspector vs WitnessAI
Prompt Inspector
promptinspector.ioWitnessAI
witness.aiSide by side
| Figure | Prompt Inspector | WitnessAI |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | — |
| Linux | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 5 | 1 |
| Spec score · LLM Security Tools | 8.5 (#5) | 7.3 (#18) |
| Integrations | The maker lists a REST API, Python SDK, Node.js SDK, MCP server, and agent skills for OpenClaw and Claude Code. | A WitnessAI platform brief lists network connectors for Zscaler, Palo Alto Networks, Netskope, Fortinet, and F5, plus API integration with existing analytics and security systems. |
| Purpose | Prompt Inspector provides real-time prompt injection detection, sensitive word filtering, and AI safety guardrails through an API call. | WitnessAI is a unified security and governance platform for enterprise employees, models, applications, and agents. |
| Support | The homepage lists community support for self-hosted users and dedicated SLA support for enterprise customers. | The company invites customers to request demos, partnership discussions, or information through its contact form and says a team member will respond shortly. |
Plans
Prompt Inspector
- FreeFree
- FreeFree
- EnterprisePriced on request
- ProPriced on request
- StarterPriced on request
In their own words
Prompt Inspector
Prompt Inspector has no write-up on Specifiction yet; its figures are above.
WitnessAI
WitnessAI is an enterprise AI security and governance platform for employee, model, application, and agent AI use. It finds AI applications, agents, and MCP servers, then presents prompts, responses, and agent activity in real time. Its catalog detects more than 4,000 AI applications without an endpoint client. Organizations can route prompts by risk, cost, or purpose and set policies by department, role, intent, or workforce type. The platform can redact sensitive data, create audit trails, block prompt injection and jailbreaks, and filter harmful model outputs. It also governs agent access to MCP servers and tools, recording blocked calls with user, agent, tool, and rule details. WitnessAI describes network-level operation without new SDKs, extra clients, or invasive instrumentation. Its architecture includes single-tenant isolation, customer-controlled encryption, executive privacy modes, and multi-region deployment. Monitoring includes Windows 11 Copilot, Office 365, and other desktop AI applications without endpoint clients or browser extensions. Pricing is custom and not published in self-service tiers; organizations can request a personalized demo.