GET /genome/accession/{accessions}/download_summary

nih.gov:ncbi-datasets-api

Summary: Get a download summary (preview) of a genome data package by genome assembly accession
Operation ID: genome_download_summary
Auth: unknown
Description

Get a download summary (preview) of a genome data package, including counts and file sizes, in JSON format.

Parameters (3)

accessions (array, path, required)

One or more genome assembly accessions, limited to 100

chromosomes (array, query, optional)

Only return genomic fasta sequence for the specified chromosomes.

include_annotation_type (array, query, optional)

Specify which sequence, annotation, and report files to include in the data package. The assembly data report is always included, and its inclusion is not affected by this parameter.

Examples (2)

TitleTypeURLAction
Get a download summary (preview) of a genome data package by genome assembly accession openapi-spec https://api.ncbi.nlm.nih.gov/datasets/v2/genome/accession/GCF_000001405.40/download_summary?chromosomes=['1', 'MT']&include_annotation_type=GENOME_FASTA
Get a download summary (preview) of a genome data package by genome assembly accession probe-gate https://api.ncbi.nlm.nih.gov/datasets/v2/genome/accession/GCF_000001405.40/download_summary?chromosomes=%5B%271%27%2C+%27MT%27%5D&include_annotation_type=GENOME_FASTA

Probe History

Latency

Status Codes

TimeStatusLatencySize
2026-03-23 10:43:10.249309 200 754ms
2026-03-22T07:39:13.768844 200 1009ms