Ecosystem Trends
Longitudinal view of the tracked AI-agent ecosystem, computed from 137 daily registry snapshots (since 2026-05-23). Dashed red markers are methodology changes — score-derived series restart there instead of pretending a redefinition is a migration. Quarterly summaries publish as State of Agent Trust reports.
Tracked agents
Actively listed agents in the registry each day.
MCP servers implemented
Agents with public evidence of an implemented MCP server — adoption of the structured tool protocol.
Trust-grade distribution
Agents per grade band. Lines restart at methodology changes — a cutover redefines the bands, so connecting across one would fake a migration.
Provider dependencies
Agents depending on each of the currently-largest runtime providers (detected from manifests and credential markers).
Stale agents
Agents with no repository push for 90+ days — the abandonment signal.