{
 "id": "dex_volumes",
 "lobe": "chain",
 "lobe_name": "Chain Cortex",
 "title": "DEX volume rankings",
 "summary": "DEX trading volume in the last 24 h / 7 d / 30 d — all chains or one — with the top DEXes and their share and change.",
 "description": "DefiLlama DEX overview. Optionally scoped to one chain. Includes perps with type=perps (derivatives volume) or aggregators.",
 "price_usd": 0,
 "free": true,
 "free_tier_daily": null,
 "input_schema": {
  "type": "object",
  "properties": {
   "chain": {
    "type": "string",
    "description": "e.g. Solana, Base (optional)"
   },
   "type": {
    "type": "string",
    "enum": [
     "dexs",
     "derivatives",
     "aggregators"
    ],
    "default": "dexs",
    "description": "Spot DEXes, perp/derivatives DEXes, or DEX aggregators. One of \"dexs\", \"derivatives\", \"aggregators\". Default \"dexs\"."
   },
   "limit": {
    "type": "integer",
    "minimum": 1,
    "maximum": 50,
    "default": 15,
    "description": "How many venues to return. Range 1-50. Default 15."
   }
  },
  "additionalProperties": false
 },
 "example": {
  "chain": "Solana",
  "limit": 10
 },
 "http": {
  "method": "POST",
  "url": "https://agent.maddegen.art/hub/api/v1/tools/dex_volumes",
  "body": "JSON arguments"
 },
 "mcp": {
  "server": "https://agent.maddegen.art/hub/mcp",
  "tool": "dex_volumes"
 },
 "health": {
  "calls_24h": 11,
  "success_pct": 100,
  "p50_ms": 453,
  "p95_ms": 2430
 }
}