Clef vs ARIA Protocol
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Clef compared with ARIA Protocol
| Detail | 
Clef | 
ARIA Protocol |
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| What it does | AI image sorter that categorizes photos automatically
| Open protocol for AI agent identity, DNS-anchored and post-quantum native, governed by a nonprofit
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| Stage | Not given
| Startup
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| Founded | Not given
| 2026
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| Based in | Not given
| MX
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| Pricing model | Freemium
| Open source
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| Pricing | 3 free runs (no sign-up required), then $9 for 20 runs that work in the image sorter, playground, and image checker
| Free to use. L0 credentials issued today. L1 enabled in agent.bar demonstration. L2 and L3 specified but not yet issued.
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| Key features | - Custom category definition with 2-8 categories per sort
- Processes up to 100 images per batch
- Confidence threshold adjustment for auto-sort
- Probability score for each categorization
- Manual review workflow for uncertain images
- ZIP export with organized folders and CSV report
- Clef-Flash, Clef-omni, and Clef model support
- No sign-up required for free trial
- Input data never stored
- Real-time example gallery with actual AI results
| - W3C Verifiable Credentials (AID format)
- Four trust levels (L0-L3) with progressive verification
- DNS anchoring starting at L1
- ML-DSA-65 + Ed25519 composite signatures
- ARIA AP for signed requests and receipts
- Append-only Trust Ledger with credential lifecycle events
- Revocation capability with signed status lists
- Public REST API verification endpoint
- TypeScript SDK for credential verification
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| What makes it different | - Reviews only uncertain images, not every result
- Works on any categories you define yourself
- Provides probability scores with every categorization
- Real example results showing actual AI output
| - Post-quantum native from launch, not a migration plan
- Governed by nonprofit to prevent capture
- Complements existing protocols without replacing them
- L0 credentials issued and verifiable today
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | 23 ● no change since last check |
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| Trust Flow (Majestic) | 1 | 7 |
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| Citation Flow (Majestic) | 19 | 20 |
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| Referring domains (Majestic) | 2 | 10 |
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5 details filled in for both companies.
More alternatives to Clef More alternatives to ARIA Protocol