A network index of all APIs.json files maintained by the API Evangelist organization, providing a comprehensive directory of API definitions across the network.

Capital One is a financial services company offering credit cards, checking and savings accounts, loans, and auto financing in the United States.

DeepSeek is an artificial intelligence company that provides advanced large language models accessible through an API that is compatible with the OpenAI and Anthropic SDKs.

CarAPI is a developer-friendly vehicle API and database that provides programmatic access to automotive data including makes, models, trims, bodies, engines, mileage, VIN decoding, license plate decoding, OBD-II diagnostic codes, and power sports vehicle information.

Apivault is an open-source directory and gateway for discovering public APIs. The platform catalogs thousands of free and public APIs across 51 categories including animals, anime, blockchain, cryptocurrency, finance, health, music, news, and weather, enabling developers to find and explore APIs for application development.

Walmart is a multinational retail corporation that operates a chain of hypermarkets, discount department stores, and grocery stores. The company is known for offering a wide range of products at competitive prices, attracting customers from all walks of life.

Whether your team is new to GraphQL, or seasoned experts, learn why Apollo is the fastest and safest way to build and scale your APIs.

Collection of Oracle PeopleSoft Enterprise application APIs for Human Capital Management, Financial Management, Supply Chain Management, CRM, Campus Solutions, and engineering intelligence across PeopleTools platform services.

SPX Graphics is an open-source, browser-based graphics control system for live video productions and live streams. It provides a REST API for external control of graphics templates, rundowns, and playback via integrations with CasparCG, OBS, vMix, and similar broadcast software.

Public APIs is a community-curated collective list of over 1,400 free APIs organized across 50+ categories, maintained by contributors and the team at APILayer. It is one of the most popular open-source projects on GitHub with over 400k stars.

APIs for managing Facebook Business accounts, advertising, pages, and assets across the Meta platform family.

Samsara is a leading connected operations platform for physical operations industries including transportation, logistics, construction, field services, and energy.

Best-in-class API components meet expert support to create the ideal wealth management operations environment. Optimize productivity, client experiences, and more.

httpstat.us is a super simple service for generating different HTTP status codes. It is useful for testing how your own scripts and applications deal with varying HTTP responses, allowing developers to simulate different server response scenarios.

Smithery is a platform for discovering, deploying, and managing Model Context Protocol (MCP) servers and skills. It provides a registry of 6000+ community-built MCP extensions that AI agents can use to access external tools, data sources, and services.

A collection of IBM's public APIs and developer resources.

Charles Schwab is a financial services company providing brokerage, banking, asset management, and financial advisory services to individual investors and independent investment advisors.

Riot Games provides a comprehensive developer platform for accessing game data across League of Legends, VALORANT, Teamfight Tactics, Legends of Runeterra, and other titles. The Riot Developer Portal offers REST APIs for match history, ranked standings, champion mastery, live spectator data, tournament management, and player account data.

NASCAR, the National Association for Stock Car Auto Racing, is a professional auto racing organization that sanctions and governs multiple racing series, including the popular NASCAR Cup Series.

Palo Alto Networks is a global cybersecurity leader providing advanced security platforms and services across network security, cloud security, and security operations.