{
  "summary": "Synchronous batch event upsert",
  "description": "Sends a batch of events across multiple profiles synchronously. Returns updated profiles without experiences or changes. Maximum 200 events, 50 identify events, 50 unique profiles per request.",
  "request": {
    "method": "POST",
    "path": "/events",
    "queryParameters": {
      "locale": "en"
    },
    "headers": {
      "Content-Type": "application/json"
    },
    "body": {
      "events": [
        {
          "type": "identify",
          "userId": "user-001",
          "traits": {
            "plan": "enterprise",
            "industry": "fintech"
          },
          "timestamp": "2026-06-13T09:00:00.000Z"
        },
        {
          "type": "page",
          "userId": "user-001",
          "properties": {
            "url": "https://example.com/pricing",
            "path": "/pricing",
            "title": "Pricing"
          },
          "timestamp": "2026-06-13T09:01:00.000Z"
        },
        {
          "type": "identify",
          "userId": "user-002",
          "traits": {
            "plan": "starter",
            "industry": "ecommerce"
          },
          "timestamp": "2026-06-13T09:00:30.000Z"
        }
      ]
    }
  },
  "response": {
    "status": 200,
    "body": {
      "data": [
        {
          "id": "prof-user-001-abc123",
          "stableId": "stable-user-001",
          "random": 0.7823,
          "audiences": ["audience-enterprise", "audience-pricing-visitors"],
          "traits": {
            "plan": "enterprise",
            "industry": "fintech"
          },
          "location": {},
          "session": {},
          "stickyVariants": {}
        },
        {
          "id": "prof-user-002-def456",
          "stableId": "stable-user-002",
          "random": 0.2341,
          "audiences": ["audience-starter"],
          "traits": {
            "plan": "starter",
            "industry": "ecommerce"
          },
          "location": {},
          "session": {},
          "stickyVariants": {}
        }
      ],
      "error": null,
      "message": "ok"
    }
  }
}