ARIA Protocol vs Biddle
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
ARIA Protocol compared with Biddle
| Detail | 
ARIA Protocol | 
Biddle |
|---|
| What it does | Open protocol for AI agent identity, DNS-anchored and post-quantum native, governed by a nonprofit
| The AI teammate that keeps your product team on the same page
|
|---|
| Stage | Startup
| MVP
|
|---|
| Founded | 2026
| Not given
|
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| Based in | MX
| US
|
|---|
| Pricing model | Open source
| Free
|
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| Pricing | Free to use. L0 credentials issued today. L1 enabled in agent.bar demonstration. L2 and L3 specified but not yet issued.
| Free during early access. Paid plans will be a flat team price with low-cost extra seats.
|
|---|
| Key features | - 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
| - Personalized daily briefings for each team member
- Tracks decisions and links them to code changes
- Reads GitHub pull requests, commits, reviews, CI, and issues
- Sends nudges when code drifts from decisions
- Connects to Linear and Notion for work tracking
- Links Stripe and Google Analytics data with code changes
- Every claim has a source link
- Respects channel privacy in Slack
|
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| What makes it different | - 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
| - Maintains a shared record of decisions without manual status updates
- Each person sees only changes relevant to their work
- Corrected decisions update everyone's briefing in real-time
- Designed for teams with AI agents writing most of the code
- Proactively alerts when important decisions are at risk
|
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 32 ▲ +5 (up) since last check | 18 ● no change since last check |
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| Trust Flow (Majestic) | 7 | 0 |
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| Citation Flow (Majestic) | 20 | 4 |
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| Referring domains (Majestic) | 10 | 1 |
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7 details filled in for both companies.
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