a2a-registry vs CrewAI

AgentCrush compares a2a-registry and CrewAI across public evidence signals — GitHub activity, package usage, dependency adoption, docs quality, ecosystem links, and discourse. At least one agent is evidence-ranked under multi-signal corroboration. The comparison shows evidence differences, not a universal winner. Methodology at /methodology.

For machine retrieval: GET /api/compare/llm-summary?agents=prassanna_ravishankar_a2a_registry,crewai or MCP compare_agents(["prassanna_ravishankar_a2a_registry","crewai"]).