US NWIS instantaneous values

Inspect current US sensor readings with parameter codes, time stamps and quality flags. Compare listed sources, access requirements and evidence for us nwis instantaneous values.

3 sources · For GIS analysts, hydrologists, drainage engineers, ecologists (groundwater and surface water baselines), environmental scientists, flood consultants, flood risk consultants, water quality specialists. Enrichment describes potential applications; review source evidence and limitations.

Legacy NWIS access may differ from modern water-data APIs; verify the current service before integration.

Discover sources with MCP

Add this server to an HTTP-compatible MCP client, then call get_source to inspect the first source. The tool call is shown separately from the client configuration. Review upstream access details before requesting data.

{
  "mcpServers": {
    "terramcp": {
      "url": "https://terramcp.earth/mcp"
    }
  }
}

// After connecting, call this discovery tool:
{
  "name": "get_source",
  "arguments": {
    "slug": "usgs-nwis-instantaneous-values"
  }
}

Listed sources