{
  "api": "The Waterline Data API",
  "version": "v1",
  "docs": "https://the-waterline.com/api",
  "data_as_of": "2026-11-09",
  "data_as_of_label": "Nov 9, 2026",
  "data_pulled_at": "2026-11-11T01:08:34.977Z",
  "generated_at": "2026-11-11T08:16:52.220Z",
  "attribution": "Credit The Waterline (the-waterline.com) with a visible link to the page the figure came from; every record carries its page_url.",
  "name": "The Waterline Data API",
  "description": "Free JSON for every number published on The Waterline (the-waterline.com): reservoirs, drought, allocations, streamflow, snowpack, history, heatmap. Wet water, not paper water.",
  "publisher": {
    "name": "The Waterline",
    "url": "https://the-waterline.com"
  },
  "auth": "none",
  "cors": "*",
  "format": "application/json; charset=utf-8",
  "license": "Free to use and republish with attribution; no key or sign-up. The underlying figures are public records from the agencies named in each series' provenance; The Waterline collects, checks and publishes them.",
  "update_policy": "Static files rebuilt every time the site rebuilds with new data. data_as_of in each response is the newest observation it holds; data_pulled_at is when the site last pulled its sources.",
  "counts": {
    "series": 58,
    "stats": 11
  },
  "sections": [
    {
      "key": "reservoir",
      "label": "Reservoirs",
      "series": 24,
      "example": "https://the-waterline.com/api/v1/series/reservoir/blue-mesa-reservoir.json"
    },
    {
      "key": "drought",
      "label": "Drought",
      "series": 11,
      "example": "https://the-waterline.com/api/v1/series/drought/arizona.json"
    },
    {
      "key": "allocation",
      "label": "Allocations",
      "series": 1,
      "example": "https://the-waterline.com/api/v1/series/allocation/cvp-south-of-delta-agricultural.json"
    },
    {
      "key": "streamflow",
      "label": "Streamflow",
      "series": 13,
      "example": "https://the-waterline.com/api/v1/series/streamflow/american-river-at-fair-oaks.json"
    },
    {
      "key": "snowpack",
      "label": "Snowpack",
      "series": 5,
      "example": "https://the-waterline.com/api/v1/series/snowpack/california.json"
    },
    {
      "key": "history",
      "label": "History",
      "series": 3,
      "example": "https://the-waterline.com/api/v1/series/history/blue-mesa-reservoir.json"
    },
    {
      "key": "heatmap",
      "label": "heatmap",
      "series": 1,
      "example": "https://the-waterline.com/api/v1/series/heatmap/index.json"
    }
  ],
  "endpoints": [
    {
      "method": "GET",
      "path": "/api/v1/index.json",
      "url": "https://the-waterline.com/api/v1/index.json",
      "description": "What this API is, its license and attribution, the sections it covers, and every endpoint."
    },
    {
      "method": "GET",
      "path": "/api/v1/latest.json",
      "url": "https://the-waterline.com/api/v1/latest.json",
      "description": "The newest reading of every data page on The Waterline (58 series): the headline value as the site shows it, the newest point of each charted line with its date, whether it is current, and links to its page and full history."
    },
    {
      "method": "GET",
      "path": "/api/v1/stats.json",
      "url": "https://the-waterline.com/api/v1/stats.json",
      "description": "The 11 headline numbers on the the-waterline.com/stats page, each as a quotable sentence with its data date and a ready-made citation."
    },
    {
      "method": "GET",
      "path": "/api/v1/series/{section}/{slug}.json",
      "url": "https://the-waterline.com/api/v1/series/reservoir/lake-powell.json",
      "description": "Everything behind one data page: every charted point (date + value), the historical band where the page draws one, the page's tables exactly as shown, its source and citation. Find each series_url in latest.json."
    },
    {
      "method": "GET",
      "path": "/api/v1/openapi.json",
      "url": "https://the-waterline.com/api/v1/openapi.json",
      "description": "A machine-readable OpenAPI 3.1 description of these endpoints."
    }
  ]
}