Here is a list of all documented files with brief descriptions:

cbor.h	> The <cbor.h> is the main header in TinyCBOR and defines the constants used by most functions as well as the structures for encoding (CborEncoder) and decoding (CborValue)
cborjson.h	> The <cborjson.h> file contains the routines that are used to convert a CBOR data stream into JSON
memory.h
tinycbor-version.h