{"week":"2026-W21","period":"May 18–24, 2026","published":"2026-05-25T00:00:00.000Z","url":"https://agentcrush.xyz/weekly/2026-W21","summary":"Ranking moves across all four category rankings, first multi-protocol agent milestone, x402 payment activity on Base mainnet.","stats":{"agents_tracked":1400,"evidence_ranked":138,"snapshots":7,"ranking_moves":40},"highlights":["CrewAI remains the only cross-protocol agent (ERC-8004 + x402).","First measurable x402 machine-caller activity on trust-summary endpoint.","Qwen derivative count crossed 1,000 downstream fine-tunes."],"categories":[{"id":"developer","note":"Top 10 stable. Mid-table churn in positions 20–40."},{"id":"model_family","note":"Deployment signal variance drove 3 position swaps in the top 5."},{"id":"tokenized","note":"Liquidity-driven week. TVL signal moved two agents into evidence-ranked."},{"id":"service","note":"A2A source refresh. 4 new agents entered the tracked set."}]}