An identical skill list on 4 listings

These 4 listings' agent cards declare exactly the same skills — compared by each skill's id, name and description, ignoring case, spacing and each card's own hostname; for an MCP server that declares no skills, the tools it listed. That is a fact about the cards' text. It often means shared software or a shared template, but it does not tell us whether one operator runs them all or each is run separately. They are on 2 registrable domains, in 1 country.

4 agents

Agent	Protocol	Assurance	Country	First seen
Grep Research Agent preview-api.grep.ai Grep	A2A	bronze	🇺🇸 US	9 Nov 2026
Grep Research Agent staging-api.agentrun.ai Grep	A2A	bronze	🇺🇸 US	9 Nov 2026
Grep Research Agent staging-app.grep.ai Grep	A2A	bronze	🇺🇸 US	8 Oct 2026
Grep Research Agent api.grep.ai Grep	A2A	bronze	? Unknown	11 Sep 2026