Cortexa research tool·chemistry·gnps

GNPS Compare Spectra

Compare two MS/MS spectra from the GNPS spectral library using Universal Spectrum Identifiers (USIs). Returns metadata for both spectra (precursor m/z, peak counts) and a link to the interactive mirror plot visualization. Useful for assessing spectral similarity between known and unknown compounds in metabolomics workflows.

Livelast probed 2026-04-30 23:07Z· 115msCortexa

Status

The most recent probe succeeded. Safe to call from the agent today.

Last probed: 1d ago
Last success: 1d ago
Last latency: 115ms

Schema

JSON Schema the agent (or your API call) must match.

{
  "properties": {
    "usi1": {
      "description": "First spectrum USI. Example: 'mzspec:GNPS:GNPS-LIBRARY:accession:CCMSLIB00005435737'.",
      "type": "string"
    },
    "usi2": {
      "description": "Second spectrum USI. Example: 'mzspec:GNPS:GNPS-LIBRARY:accession:CCMSLIB00000579622'.",
      "type": "string"
    }
  },
  "required": [
    "usi1",
    "usi2"
  ],
  "type": "object"
}

Examples (1)

Default GNPS Compare Spectra call

public-safeinput

{
  "usi1": "",
  "usi2": ""
}

Expected response keys: success

Anonymous-safe example. Rate-limited; no sign-in required.

Identifiers

Catalog ID: tu_GNPS_compare_spectra
Tool name: GNPS_compare_spectra
Added: 2026-04-30 22:47Z
Tags: tooluniverse

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