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parlo 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.

parlo compared with ARIA Protocol
Detailparlo logo parloARIA Protocol logo ARIA Protocol
What it doesAgent-to-agent conversations for your coding agents Open protocol for AI agent identity, DNS-anchored and post-quantum native, governed by a nonprofit
StageNot given Startup
FoundedNot given 2026
Based inPL MX
Pricing modelFree Open source
PricingFree for noncommercial use; commercial use requires contacting contact@aioomi.com for a separate license. Free to use. L0 credentials issued today. L1 enabled in agent.bar demonstration. L2 and L3 specified but not yet issued.
Key features
  • Either agent can initiate conversations
  • Read-only mode by default for safety
  • Hard limits to prevent infinite loops
  • Real-time step-by-step monitoring
  • No server, app, or MCP setup required
  • Single-line npm installation
  • 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
  • Bidirectional: either agent can start a conversation, not just one-way
  • Hard limits enforce safety: 20 messages per thread, 3 concurrent colleagues, 2 levels deep, 30-minute timeouts
  • Read-only by default with explicit write-access control
  • No infrastructure: command and skill, no server or MCP setup
  • 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 votes00
DR (Domain Rating by Ahrefs)12 no change since last check23 no change since last check
Trust Flow (Majestic)07
Citation Flow (Majestic)020
Referring domains (Majestic)010

6 details filled in for both companies.

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