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A2A / Agent2Agent Protocol vs CLI-Anything

An independent, evidence-weighted trust comparison of two protocols & tool integration — ranked on verifiable signals, not popularity.

A2A / Agent2Agent Protocol ranks higher with an HVTrust score of 89.4 vs 70.7/100 (Grade A vs B). HVTrust reflects supply-chain safety, transparency, maintenance, and adoption — weighted by how much verifiable evidence exists.

HVTrust comparison

This section is the production trust ranking: supply-chain integrity, provenance, maintenance, and adoption.

SignalA2A / Agent2Agent ProtocolCLI-Anything
HVTrust score89.470.7
Evidence gradeAB
Registry stateListedListed
Safety / Integrity (25)21.28.9
Identity / Provenance (18)18.018.0
Transparency (17)14.48.5
Maintenance (20)16.719.5
Adoption (20)19.115.8
GitHub stars24.1k42.1k
Weekly downloads2,676,3783,589
Last push2026-06-052026-06-04
LanguageShellPython
OSSF Scorecard7.0
Review flags
Recent change2026-05-29: HVTrust up 10.2pts (75.2 → 85.4)2026-06-06: Rank rose 95 spots (#166 → #71)
Profile context only

AI agent surface comparison

This section is separate from HVTrust. It compares MCP, service dependencies, tool surface, and package-source alignment as descriptive agent-profile context.

These signals help you understand how an agent is wired and what operational surface it exposes, but they do not change the production HVTrust rank.

Surface signalA2A / Agent2Agent ProtocolCLI-Anything
MCP server support None detected No public MCP signal confidence label None detected No public MCP signal confidence label
External service dependencies None detected No clear third-party provider dependency detected 1 detected OpenAI
Tool / plugin surface Declared code Marketplace browser, code, search, shell
Package provenance drift Unknown Package source metadata is missing or inconclusive Match Published package metadata matches the tracked repo
Full A2A / Agent2Agent Protocol report → Full CLI-Anything report → All Protocols & Tool Integration →