{
  "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."
    }
  ],
  "_attribution": {
    "source": "AgentCrush",
    "source_url": "https://agentcrush.xyz/weekly/2026-W21",
    "source_homepage": "https://agentcrush.xyz",
    "endpoint_url": "https://agentcrush.xyz/weekly/2026-W21/json",
    "last_updated": "2026-07-17T00:07:00.812Z",
    "license": "CC-BY-4.0 — attribute \"AgentCrush (https://agentcrush.xyz)\"",
    "terms_url": "https://agentcrush.xyz/terms-for-agents",
    "contact": "https://agentcrush.xyz/about",
    "cite_as": "AgentCrush · https://agentcrush.xyz/weekly/2026-W21",
    "api_version": "v1"
  }
}