We Block AI Prompt Injection Attacks
Real-time prompt injection detection for AI applications, Agentic Workflows, and MCP clients. Protect your app in under 5 minutes.
Lightning fast • Zero-config setup • Enterprise-ready security
We detect indirect prompt injection in multimodal input
better than anything else on the market
How Prompt Injection Detection Works
Your Agents Are Vulnerable
Your agent will come across malicious instructions when reading data from websites, images, and behave unpredictably
Try It Yourself
Test our detection engine with your own prompts. See how we identify and flag potential injection attempts in real-time.
INPUT PROMPT
API RESPONSE
{
"is_safe": boolean,
"reason": string | null,
"categories": Category[],
"request_id": string,
"service_tier": string
...
}Run a scan to see the live analysis result
-
Don't Let Your AI Go Rogue
Real examples of prompt injection attacks that compromise AI agents. These vulnerabilities affect ChatGPT, Claude, Gemini, and other LLM-based applications.
Hacking Gemini
Aug 6, 2025Attackers exploited Gemini by embedding hidden instructions in Google Calendar invites. When users asked Gemini to summarize their schedule, the AI executed the malicious commands, granting attackers control over smart home devices and access to sensitive data.
Weaponizing Image Scaling
Aug 21, 2025Researchers found that downscaling high-resolution images can reveal hidden prompts invisible to the human eye. When processed by AI vision models, these now-visible commands can trigger unauthorized actions, such as exfiltrating user data.
GitHub Prompt Injection
Aug 14, 2025Attackers embedded malicious commands in GitHub issues. When developers used AI agents to review these issues, the agents were tricked into accessing private repositories and leaking sensitive code, exploiting overly broad access permissions.
Google Antigravity Exfiltration
Nov 25, 2025An indirect prompt injection in an online implementation guide can manipulate Antigravity's agentic editor to invoke a malicious browser subagent, stealing credentials and sensitive code from the user's IDE.
Integrate Centure
Protect your AI applications, MCP servers, and development workflows from prompt injection attacks
Secure Your AI Pipeline
Scan external data from web scraping, user uploads, or API responses before feeding it to your AI model. Block prompt injection attacks at the source.
Real-time detection with low latency
Simple drop-in SDK for Node.js
Comprehensive protection against jailbreaks
npm install @centure/node-sdkserver.ts
AI Security Features
Prompt Injection Detection
Real-time protection against malicious prompts and image-based attacks using advanced multi-modal analysis.
MCP Proxies
Instant protection for MCP servers with zero code changes. Includes automatic OAuth management.
API & SDKs
Integrate protection anywhere using our REST API, TypeScript SDK, or Vercel AI SDK.
Team Management
Collaborate securely with role-based access control and organization-wide project management.
Security Analytics
Monitor threats, track usage trends, and gain actionable insights into your security posture.
Audit Logging
Maintain compliance with a complete audit trail of all security events and administrative actions.
AI Security Pricing
For the full breakdown of how our billing works read the documentation
Free
$0/month
Good for testing and hobby projects
- 500 request units/month (hard limit)
- Access to MCP Proxies
- Lower service priority tier
- No billing required
Developer
$10/month
Flat fee with automatic overage billing*
- Includes 10,000 request units/month
- Priority processing
- Higher rate limits
- 99.9% SLA
Enterprise
Custom
Fastest, most reliable, scales with you
- Dedicated deployments in your cloud
- Provisioned throughput
- Custom SLAs
- Priority support
* Developer tier includes 10,000 request units per month. Additional usage is automatically billed at $1 per 1,000 request units via Stripe Billing Meters.
All tiers support self-serve add-ons
SSO • Audit Logs • SIEM Streaming
Configure and enable additional security features at any time through your dashboard
Ready to secure your AI?
Start protecting your LLM applications, Agentic Workflows, and MCP servers today. Free for developers.
Not ready to implement yet?
We'll send you more details about how Centure can protect your AI applications from prompt injection attacks. We don't spam :)