| What it does | Check text for possible Claude AI involvement and understand how Claude's text watermark works
| Prompt injection protection for AI agents
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
| GB
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| Pricing model | Free
| Freemium
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| Pricing | Not given
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| Key features | - Detect possible Claude-style watermark signals
- Explain how Claude's SynthID-style watermarking works
- Analyze text up to 30,000 characters
- Display AI-likelihood heuristic score
- Connect to humanizer API for rewriting
- Clear detector labeling
| - Scans tool output, documents, web pages and email
- Multi-layered detection cascade with heuristics and deeper analysis
- Policy Studio for rule management and versioning
- Evidence and investigation tools showing detector signals and matched spans
- SIEM export to Splunk, QRadar, Sentinel and Elastic
- Python and TypeScript SDKs
- HTTP API and webhook support
- Mandatory two-factor authentication
- Knowledge bucket scanning for RAG pipelines
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| What makes it different | - Science-first approach explaining SynthID-style statistical watermarking, not fake hidden-character claims
- Privacy-first interface with no tracking or data retention claims
- Honest about detection limits: requires Anthropic's watermark key for official verification
| - Same detection quality across all plans—no features held back at lower tiers
- Transparent benchmarking with published methodology and confidence intervals
- Model-agnostic, provider-agnostic architecture works with any AI model or framework
- In-process detection with 23 ms median latency on default engine
- Free tier with 5 million characters per month, no card required
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| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | 1 ● no change since last check | Not checked yet ● no change since last check |
| Trust Flow (Majestic) | 3 | 0 |
| Citation Flow (Majestic) | 20 | 0 |
| Referring domains (Majestic) | 21 | 0 |