> ## Documentation Index
> Fetch the complete documentation index at: https://help.partgenie.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Resolve vs Lookup

# Resolve vs Lookup

| | `POST /parts/resolve` | `POST /parts/lookup` |
| - | - | - |
| Input | Dirty MPN, NL, ambiguous | Known MPN |
| Output | candidates + confidence (+ rationale / match\_hints for NL) | Single part + `part_id` |
| Best for | Messy or natural-language input | Exact catalog match |

Use these endpoints for identity — do not scrape or reverse-engineer catalog storage.


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