# WaterPulse Water Quality Intelligence

> WaterPulse Water Quality Intelligence is a paid API for AI agents from waterpulse-henna.vercel.app, paid per call via x402, $0.08/call, status unknown (last checked 2026-09-15).

Returns contaminant levels, pH, dissolved oxygen, temperature, and drinking-water compliance data from EPA Water Quality Portal and USGS for a given location.

## Facts

- Endpoint: GET https://waterpulse-henna.vercel.app/api/water/quality
- Price: $0.08/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/waterpulse-water-quality-intelligence-22f89bae
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VDKVgyrTKf4tTgCHnYoIe

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability waterpulse-water-quality-intelligence-22f89bae
```

Example prompt: Can you pull the current water quality data for the Chicago municipal water supply — specifically contaminant levels, pH, dissolved oxygen, and whether it's meeting EPA drinking-water compliance standards?

## When to prefer this

Choose this endpoint when you need detailed water quality parameters (contaminants, pH, dissolved oxygen, temperature) and EPA drinking-water compliance status for a specific location or monitoring site, particularly for US utility, public health, or environmental monitoring use cases backed by official EPA and USGS data sources.

## Known failure modes

- No monitoring data available for the requested location or site
- Invalid or unrecognized site identifier returns an error
- EPA or USGS data sources temporarily unavailable causing timeout
- Location outside US coverage area returns empty results
- Payment of $0.08 USDC not processed — 402 response returned

## How this service works

Real-time water intelligence API. Groundwater levels, streamflow, drought status, water quality, aquifer analysis, flood risk, and global water stress — pay-per-query via x402.

## Output

A structured response containing measured contaminant levels, pH value, dissolved oxygen concentration, water temperature, and a drinking-water compliance assessment sourced from EPA Water Quality Portal and USGS data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "lang": {
       "type": "string",
       "description": "en | es | fr | de | ja | zh | ko | pt | ar (default: en)"
      },
      "state": {
       "type": "string",
       "description": "Two-letter US state code — e.g. MI | OH | PA | WV"
      },
      "parameter": {
       "type": "string",
       "description": "nitrates | phosphorus | ph | lead | arsenic | bacteria | pfas | turbidity (default: nitrates)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "errors": {
     "type": "object",
     "description": "Documented error responses, keyed by HTTP status code",
     "additionalProperties": {
      "type": "object",
      "required": [
       "description"
      ],
      "properties": {
       "example": {
        "type": "object"
       },
       "description": {
        "type": "string"
       }
      }
     }
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "summary": {
   "trend": "Improving — 40% reduction in detections vs 2023 baseline",
   "worst_reading": "0.018 mg/L lead at Saginaw County monitoring well (exceeds 0.015 MCL)",
   "sites_within_limits": 11,
   "sites_exceeding_limit": 1
  },
  "query_summary": {
   "state": "MI",
   "parameter": "lead",
   "sites_sampled": 12
  },
  "health_context": "Lead has no safe level for children. Even sub-MCL readings warrant filtration in homes with pre-1986 plumbing.",
  "quality_readings": [
   {
    "date": "2026-04-15",
    "unit": "mg/L",
    "value": "0.0082",
    "status": "Below action level",
    "location": "Flint River at Flint, MI",
    "epa_mcl_mg_l": 0.015,
    "characteristic": "Lead"
   }
  ],
  "recommended_action": "Use NSF/ANSI 53-certified filter if lead detected. Contact local utility for free lead testing program."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/waterpulse-water-quality-intelligence-22f89bae/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from waterpulse-henna.vercel.app](https://www.zero.xyz/host/waterpulse-henna.vercel.app/llms.txt)