Alphafold vs RCSB PDB — MCP Server Comparison | AllMCPs
Side-by-Side Model Context Protocol Comparison
Alphafold vs RCSB PDB
In-depth architectural comparison of the Alphafold and RCSB PDB MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.
At a Glance & Executive Verdict
Alphafold
Biology & Bioinformatics · Local stdio
Quality: 52/100 (Good) | Auth: No auth required
RCSB PDB
Biology & Bioinformatics · Local stdio
Quality: 53/100 (Good) | Auth: No auth required
Verdict Summary: Choose Alphafold if you need specialized Biology & Bioinformatics tools running via a local process. Choose RCSB PDB if your workspace requires Biology & Bioinformatics integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.
Which MCP Server Should You Choose?
Choose Alphafold when:
You need dedicated capabilities in the Biology & Bioinformatics domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Structured query on one or more indexed attributes (resolution, organism, release date, ...) joined by a single `logical_operator`. Each condition supports `exists`, `negation`, `case_sensitive`; `chemical_attributes=True` selects the chemical-component catalog.
rcsb_query_sequence
MMseqs2 sequence-similarity query (BLAST-like), with identity / e-value cutoffs.
rcsb_query_chemical
Chemical query by SMILES/InChI descriptor (whole-molecule or substructure) or molecular formula.
Ready-to-Paste Client Configurations
Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).
Alphafold is categorized under Biology & Bioinformatics and uses a local stdio subprocess. In contrast, RCSB PDB belongs to Biology & Bioinformatics using local stdio subprocess. Select Alphafold when you need capabilities focused on biology & bioinformatics and RCSB PDB when you require tools for biology & bioinformatics.
3D shape-similarity query against a reference PDB assembly or chain.
rcsb_query_seqmotif
Short **sequence**-motif query (PROSITE pattern, regex, or simple wildcards).
rcsb_query_strucmotif
3D **structural**-motif query: a geometric arrangement of specific residues (e.g. a catalytic triad).
rcsb_query_composer
Join 2+ query documents with AND/OR — nested boolean logic, and the only way to combine different services in one search.
rcsb_search_request
Execute a query document and return matching **identifiers only**. Carries every output option: `return_type`, `limit`/`offset`, `all_hits`, `facets`, `sort_by`/`sort_direction`, `group_by`/`group_by_ranking`, `include_computed_models`.
rcsb_list_pdb_search_attributes
Discover searchable attribute paths, types, and operators. `schema="structure"` (default, ~636) or `schema="chemical"` (~58: `chem_comp.*`, `drugbank_info.*`, ...). Records also carry `enum` (closed value sets) and `nested_group` (attributes stored in nested objects — see below).
rcsb_find_go_terms
Resolve a free-text molecular function / biological process / cellular component to Gene Ontology ids (via EBI QuickGO), annotated with PDB entry counts — then search by `rcsb_polymer_entity_annotation.annotation_lineage.id`.
rcsb_find_interpro_domains
Resolve a free-text protein domain / family / fold to InterPro and Pfam ids (via EBI Search), annotated with PDB entry counts — then search by `rcsb_polymer_entity_annotation.annotation_id`.