Browse a community-maintained list of free public APIs for software projects.
Open source
24 alternativesawesome-transit
github.com/MobilityData/awesome-transit
Web Directories & Curated Lists
Open-source projectOpen source
Explore transit APIs, apps, datasets, research, and software in this community list.
About awesome-transit
awesome-transit is a community-maintained list of resources about open technology for public transit. It collects data standards, APIs, apps, tools, datasets, and research. The list is organized by topic, including producing data, sharing data, using data, visualizations, and community resources. Its sections cover GTFS, GTFS Realtime, and SIRI, along with related libraries, validators, converters, and courses.
The list links to external resources rather than providing software itself. It includes both open source and closed source items, such as closed-source web apps and proprietary vendor APIs. The source states that included technologies may be open source themselves, or may rely on open standards or open data. Anyone can suggest additions or changes by opening a pull request or issue on the GitHub repository.
Key features
- Sections on GTFS, GTFS Realtime, and SIRI transit data standards
- GTFS libraries listed by programming language, including Python, Java, Rust, and R
- Lists of GTFS and GTFS Realtime validators
- Directories of third-party GTFS URL sources and transit agency data archives
- Courses and tutorials on GTFS and GTFS Realtime
- Listings of transit visualization and transit map creation tools
Best for: Developers, transit agency staff, and researchers who want to find existing open transit data standards, tools, and datasets.
Good for
- Organized by topic, from producing and sharing data to using data and visualizations
- Covers open standards, open data, and open source software in one place
- Accepts suggested additions and changes through pull requests or issues
Watch out for
- Includes closed-source apps and proprietary vendor APIs, so not every item is open source
- Is a list of links to external resources rather than a software tool
awesome-transit at a glance
- Category
- Development › Web Directories & Curated Lists
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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awesome-transit FAQ
How can a resource be added to the list?
Open a pull request or issue at MobilityData/awesome-transit on GitHub.
Does the list include only open source projects?
No. The list includes closed-source categories as well. The source states that included technologies may be open source themselves and/or rely on open standards and/or open data.
Is something wrong or out of date?
Tell us and an editor will check it.
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