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Welcome to the cwms-data-api wiki!

The Corps Water Management System (CWMS) Data API (CDA) is a tool for anyone to gather data about current operations status and historical events from US Army Corps of Engineers districts across the United States.

We are striving to use well defined standards for any requests. Below are a few guides to help begin gathering data about various USACE Systems.

A useful web interface for manipulating the REST-API queries CDA has to offer can be found here:

• Swagger UI: https://cwms-data.usace.army.mil/cwms-data/swagger-ui.html
• API Documentation: https://cwms-data.usace.army.mil/cwms-data/swagger-docs

Some quick notes:

• Time is always passed into the system using the ISO8601 formats for time, durations, and intervals.
• See the sidebar for help and other important topics

Client-side Libraries

• cwms-python -> Python - Python Wrapper for CDA + Pandas/Numpy
• CWMSjs -> JavaScript - Docs Here