Cortexa research tool·biomedical·cellxgene_census

CELLxGENE Get Presence Matrix

Get feature presence matrix showing which genes are measured in which datasets. Returns sparse matrix dimensions and density. Useful for understanding data completeness and selecting datasets with genes of interest. Use for: checking gene coverage, dataset selection, quality assessment.

Livelast probed 2026-05-01 01:00Z· 94msCortexa

Status

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

Last probed: 1d ago
Last success: 1d ago
Last latency: 94ms

Schema

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

{
  "properties": {
    "census_version": {
      "default": "stable",
      "description": "Census version to query. 'stable' (recommended, Long-Term Support release), 'latest' (newest data, may change), or specific date 'YYYY-MM-DD' (for reproducibility). Default 'stable' is best for production analyses.",
      "type": "string"
    },
    "operation": {
      "default": "get_presence_matrix",
      "description": "Operation type",
      "enum": [
        "get_presence_matrix"
      ],
      "type": "string"
    },
    "organism": {
      "default": "Homo sapiens",
      "description": "Organism name",
      "enum": [
        "Homo sapiens",
        "Mus musculus"
      ],
      "type": "string"
    }
  },
  "required": [
    "operation"
  ],
  "type": "object"
}

Examples (1)

Default CELLxGENE Get Presence Matrix call

public-safeinput

{
  "operation": ""
}

Expected response keys: success

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

Identifiers

Catalog ID: tu_CELLxGENE_get_presence_matrix
Tool name: CELLxGENE_get_presence_matrix
Added: 2026-05-01 00:58Z
Tags: tooluniverse

CELLxGENE Get Presence Matrix

Livelast probed 2026-05-01 01:00Z· 94msCortexa

Schema

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

{ "properties": { "census_version": { "default": "stable", "description": "Census version to query. 'stable' (recommended, Long-Term Support release), 'latest' (newest data, may change), or specific date 'YYYY-MM-DD' (for reproducibility). Default 'stable' is best for production analyses.", "type": "string" }, "operation": { "default": "get_presence_matrix", "description": "Operation type", "enum": [ "get_presence_matrix" ], "type": "string" }, "organism": { "default": "Homo sapiens", "description": "Organism name", "enum": [ "Homo sapiens", "Mus musculus" ], "type": "string" } }, "required": [ "operation" ], "type": "object" }