DataStream
FreeLiveLast verified 24 Sept 2026
Canadian water-quality monitoring data: sample locations, observations, and dataset metadata via OData.
Example request
curl -s -H 'x-api-key: $API_KEY' 'https://api.datastream.org/v1/odata/v4/Locations'
Free tier, in plain English
Free API key on request (typically approved within a business day), rate-limited to 2 requests a second.
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