jsDelivr
Fetch package metadata and download statistics from the jsDelivr CDN.
Read docs Updated 2026-06-17
What is jsDelivr?
jsDelivr is a free content delivery network focused on open-source JavaScript, CSS, and other web assets. Its public API surfaces package listings along with associated metadata and usage metrics.
It is used by developers building dashboards, analytics tools, or package explorers that need reliable CDN data without requiring user credentials.
What you can build with jsDelivr
Monitor package popularity trends
Track daily and monthly download counts for specific npm or GitHub packages to gauge adoption and usage over time.
Build internal dashboards
Pull live stats into team dashboards or reports to compare CDN performance and package reach across projects.
Automate availability checks
Query package metadata to verify if a library version is served by jsDelivr before adding it to build pipelines.
Get started with jsDelivr
- 1Choose package type and name (npm or GitHub)
- 2Build the endpoint URL using jsDelivr data API format
- 3Send a simple HTTPS GET request with no auth headers
- 4Parse the returned JSON for stats or version info
- 5Cache responses locally to respect usage limits
jsDelivr: pros & cons
Pros
- +No API key or authentication needed
- +Fast, lightweight REST endpoints
- +Real download numbers from the CDN
- +Covers npm and GitHub packages
Cons
- –Only works for packages hosted on jsDelivr
- –Rate limits apply on heavy usage
- –No advanced filtering or search
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Frequently asked questions
It returns package metadata and download statistics for libraries served by the jsDelivr CDN.
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