curl --request POST \
  --url https://api.quantpilot.ai/technical/channel \
  --header 'x-api-key: <api-key>'

{
  "current_lower_price": 88.74,
  "current_upper_price": 129.81,
  "data": {
    "channel": {
      "channel_end_idx": 89,
      "channel_end_timestamp": 1742688000,
      "channel_start_idx": 28,
      "channel_start_timestamp": 1737504000,
      "is_valid": true,
      "lower_intercept": 36838.11,
      "lower_r2": 0.986,
      "lower_slope": -0.000021,
      "lower_touches_ts": [
        {
          "idx": 29,
          "price": 241.94,
          "rank": 4,
          "ts": 1737590400
        }
      ],
      "score": 1.97,
      "upper_intercept": 48010.36,
      "upper_r2": 0.99,
      "upper_slope": -0.000027,
      "upper_touches_ts": [
        {
          "idx": 28,
          "price": 272.35,
          "rank": 12,
          "ts": 1737504000
        }
      ]
    },
    "image": "base64_encoded_image_string",
    "webhook_registered": false
  },
  "message": "Channel detected"
}