Public APIs with no API key — page 3
1,522 APIs you can call without signing up for a key — handy for prototypes, demos and learning.
NHTSA
VehicleNHTSA Product Information Catalog and Vehicle Listing
Fed Treasury
FinanceU.S. Department of the Treasury Data
Colorado Information Marketplace
GovernmentColorado State Government Open Data
ipapi.co
GeocodingFind IP address location information
RuneScape
Games & ComicsRuneScape and OSRS RPGs information
USPTO
PatentUSA patent api services
FBI Wanted
GovernmentAccess information on the FBI Wanted program
Slack AI Plugin
DevelopmentA plugin that allows users to interact with Slack using ChatGPT
Razorpay IFSC
FinanceIndian Financial Systems Code (Bank Branch Codes)
Digimon Information
Games & ComicsProvides information about digimon creatures
CoinGecko
CryptocurrencyCryptocurrency Price, Market, and Developer/Social Data
Open Government, Indonesia
GovernmentIndonesian Government Open Data
Bank of Russia
Currency ExchangeExchange rates and currency conversion
Telegram Bot API
MessagingAuto-generated OpenAPI schema
Bureau of Labor Statistics
GovernmentUS labor statistics: inflation, unemployment, wages and productivity
Item API
ShoppingPlease make sure you use the correct version of the APIs for your use case. To find out the appropriate version, go to the API Docs drop down on the menu.
Open-Meteo
EnvironmentFree weather API for non-commercial use
USGS Water Services
Science & MathWater quality and level info for rivers and lakes
NuGet
Development.NET package versions, metadata and search
Semantic Scholar
Science & MathAcademic search engine for papers, authors, and citations
Docker Engine API
DevelopmentThe Engine API is an HTTP API served by Docker Engine. It is the API the Docker client uses to communicate with the Engine, so everything the Docker client can do can be done with the API. Most of the client's commands map directly to API endpoints (e.g. `docker ps` is `GET /containers/json`). The notable exception is running containers, which consists of several API calls. # Errors The API uses standard HTTP status codes to indicate the success or failure of the API call. The body of the response will be JSON in the following format: ``` { "message": "page not found" } ``` # Versioning The API is usually changed in each release of Docker, so API calls are versioned to ensure that clients don't break. For Docker Engine 17.09, the API version is 1.32. To lock to this version, you prefix the URL with `/v1.32`. For example, calling `/info` is the same as calling `/v1.32/info`. Engine releases in the near future should support this version of the API, so your client will continue to work even if it is talking to a newer Engine. In previous versions of Docker, it was possible to access the API without providing a version. This behaviour is now deprecated will be removed in a future version of Docker. The API uses an open schema model, which means server may add extra properties to responses. Likewise, the server will ignore any extra query parameters and request body properties. When you write clients, you need to ignore additional properties in responses to ensure they do not break when talking to newer Docker daemons. This documentation is for version 1.33 of the API. Use this table to find documentation for previous versions of the API: Docker version | API version | Changes ----------------|-------------|--------- 17.09.x | [1.31](https://docs.docker.com/engine/api/v1.32/) | [API changes](https://docs.docker.com/engine/api/version-history/#v1-32-api-changes) 17.07.x | [1.31](https://docs.docker.com/engine/api/v1.31/) | [API changes](https://docs.docker.com/engine/api/version-history/#v1-31-api-changes) 17.06.x | [1.30](https://docs.docker.com/engine/api/v1.30/) | [API changes](https://docs.docker.com/engine/api/version-history/#v1-30-api-changes) 17.05.x | [1.29](https://docs.docker.com/engine/api/v1.29/) | [API changes](https://docs.docker.com/engine/api/version-history/#v1-29-api-changes) 17.04.x | [1.28](https://docs.docker.com/engine/api/v1.28/) | [API changes](https://docs.docker.com/engine/api/version-history/#v1-28-api-changes) 17.03.1 | [1.27](https://docs.docker.com/engine/api/v1.27/) | [API changes](https://docs.docker.com/engine/api/version-history/#v1-27-api-changes) 1.13.1 & 17.03.0 | [1.26](https://docs.docker.com/engine/api/v1.26/) | [API changes](https://docs.docker.com/engine/api/version-history/#v1-26-api-changes) 1.13.0 | [1.25](https://docs.docker.com/engine/api/v1.25/) | [API changes](https://docs.docker.com/engine/api/version-history/#v1-25-api-changes) 1.12.x | [1.24](https://docs.docker.com/engine/api/v1.24/) | [API changes](https://docs.docker.com/engine/api/version-history/#v1-24-api-changes) 1.11.x | [1.23](https://docs.docker.com/engine/api/v1.23/) | [API changes](https://docs.docker.com/engine/api/version-history/#v1-23-api-changes) 1.10.x | [1.22](https://docs.docker.com/engine/api/v1.22/) | [API changes](https://docs.docker.com/engine/api/version-history/#v1-22-api-changes) 1.9.x | [1.21](https://docs.docker.com/engine/api/v1.21/) | [API changes](https://docs.docker.com/engine/api/version-history/#v1-21-api-changes) 1.8.x | [1.20](https://docs.docker.com/engine/api/v1.20/) | [API changes](https://docs.docker.com/engine/api/version-history/#v1-20-api-changes) 1.7.x | [1.19](https://docs.docker.com/engine/api/v1.19/) | [API changes](https://docs.docker.com/engine/api/version-history/#v1-19-api-changes) 1.6.x | [1.18](https://docs.docker.com/engine/api/v1.18/) | [API changes](https://docs.docker.com/engine/api/version-history/#v1-18-api-changes) # Authentication Authentication for registries is handl
Imgflip
EntertainmentGets an array of popular memes
Open Library
BooksBooks, book covers and related data
University of Oslo
Open DataCourses, lecture videos, detailed information for courses etc. for the University of Oslo (Norway)