The Human Microbiome Project Data Analysis and Coordinating Center (DACC) Data Portal provides access to all publicly available HMP data sets. This curated portal is a comprehensive collection of databases and libraries, serving as a useful gateway for access to microbiome data.
The NIH also houses HMP databases through NCBI including:
This website is the major NIH portal for accessing HMP data
This site gives access to the genomes of HMP reference strains in GenBank