Merlin 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.
Merlin compared with ARIA Protocol
| Detail | 
Merlin | 
ARIA Protocol |
|---|
| What it does | Your agents, now part of your team
| Open protocol for AI agent identity, DNS-anchored and post-quantum native, governed by a nonprofit
|
|---|
| Stage | Growing
| Startup
|
|---|
| Founded | Not given
| 2026
|
|---|
| Based in | Not given
| MX
|
|---|
| Pricing model | Freemium
| Open source
|
|---|
| Pricing | Not given
| Free to use. L0 credentials issued today. L1 enabled in agent.bar demonstration. L2 and L3 specified but not yet issued.
|
|---|
| Key features | - Integrates with Slack, Linear, and GitHub
- Runs on your own devices using your existing Claude and Codex subscriptions
- Shared skills that teams can publish and install
- Recurring schedules for progress updates and routine checks
- Shared memory across company and channels
- Access control for devices, skills, memory, and schedules
- Proactive responses to surface missing context
| - 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
|
|---|
| What makes it different | - Runs on your own machines with no separate model billing
- Multiplayer by default with work visible to entire team
- Lives in existing collaboration tools, not a separate app
- Shared skills and memory compound across the team
| - 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
|
|---|
| Community votes | 0 | 0 |
|---|
| DR (Domain Rating by Ahrefs) | 26 ▲ +5 (up) since last check | 27 ▲ +4 (up) since last check |
|---|
| Trust Flow (Majestic) | 0 | 7 |
|---|
| Citation Flow (Majestic) | 19 | 20 |
|---|
| Referring domains (Majestic) | 24 | 10 |
|---|
5 details filled in for both companies.
More alternatives to Merlin More alternatives to ARIA Protocol