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fittings PDB Structure Info
x402
fittings PDB Structure Info is a paid API for AI agents from fittings.sh, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Retrieves experimental method, resolution, R-factor, unit cell, entity composition, and primary citation for a given PDB entry by its four-character ID.
Price / call$0.005
Success—
StatusUnknown
How this service works
Experimental method, resolution, R-factor, unit cell, entity composition and primary citation for a PDB entry.
Output
Returns structured metadata for the specified PDB entry including: experimental method (e.g. X-RAY DIFFRACTION, EM), resolution in Ångströms, R-work and R-free values, unit cell dimensions and angles, entity composition (chains, macromolecule types), and the primary literature citation with authors, journal, year, DOI, and title.
Example use cases
Protein crystallography quality check
“Look up the resolution and R-factor for PDB entry 1TIM so I can assess how good the crystal structure is.”
Finding original publication for a structure
“What is the primary citation for PDB structure 3NIR? I need the authors and journal info.”
Retrieving entity composition of a complex
“Get me the entity composition and unit cell parameters for PDB entry 2GBP — I want to know what chains are in the asymmetric unit.”
Technical details
Endpoint
GEThttps://fittings.sh/v1/pdb/structureWhen to prefer
Use this endpoint when you need concise, structured PDB entry metadata — resolution, R-factor, unit cell, method, entities, and citation — without needing full coordinate data or atom-level details. Prefer it over direct RCSB API calls for simplicity and pay-per-call pricing without authentication setup.
Side effects
- Invalid or non-existent PDB ID returns an error — IDs must be exactly four characters
- Deprecated or obsolete PDB entries may return incomplete data or redirect metadata
- Network or upstream PDB API unavailability causes request failure
- Malformed query parameter (missing 'id') results in a schema validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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