RCSB Protein Data Bank (PDB) API

Access the RCSB PDB to search, retrieve, and download macromolecular 3D structures. Covers X-ray crystallography, cryo-EM, NMR, and other experimental methods. No authentication required.

API Endpoints

Data API Base: https://data.rcsb.org Search API Base: https://search.rcsb.org File Downloads: https://files.rcsb.org

GET /rest/v1/core/entry/{pdb_id} -- Structure metadata

# Get full metadata for a PDB entry (human hemoglobin)
curl -s "https://data.rcsb.org/rest/v1/core/entry/1HBB"

# Get entry metadata for SARS-CoV-2 spike protein structure
curl -s "https://data.rcsb.org/rest/v1/core/entry/6VYB"