Python Client Library
If you want to access time series from Python programs, refer to: Python Client Library for WTSS.
R Client Library
If you want to access time series from R programs, refer to: R Client Library for WTSS.
WTSS OpenAPI v3 Specification
For a detailed explanation of the WTSS service and its formal specification, please refer to: WTSS Specification.
References
A discussion about the motivation behind the design and implementation of WTSS can be found in:
VINHAS, L.; QUEIROZ, G. R.; FERREIRA, K. R.; CÂMARA, G. Web Services for Big Earth Observation Data. Revista Brasileira de Cartografia, v. 69, n. 5, 18 maio 2017.