APIs & Databases

SQL queries can be written and run in Franchise, an open-source browser notebook.

Neon provides Postgres databases, authentication, functions, storage, and an AI gateway for applications and agents.

Tavily provides web search and content APIs designed for AI agents and applications.

Mockend creates mock REST and GraphQL APIs from a file in a repository.

Use Elasticsearch, a distributed RESTful search engine, for searching and analyzing indexed data.

withoutBG offers background removal through a managed cloud API or a self-hosted open-weight model.

An open-source PostgreSQL administration and development interface for database objects and SQL work.

The renamed SQLiteStudio project, offering a desktop interface for SQLite database editing and queries.

A JavaScript API mocking library that shares request handlers between browser development and automated tests.

HTTP Cats provides an API for displaying cat images that correspond to HTTP status codes.

Create and manage content with Strapi, an open-source TypeScript headless CMS for exposing content across devices.

Search sites and applications with Meilisearch, an API-based search engine offering hybrid search.

Icon Horse retrieves a website’s favicon and other site icons on demand.

Hoppscotch is an open-source API client with web, desktop and command-line options. Its personal workspace supports request collections, environments and tests. Hosted team collaboration has separate paid plans.

Build a self-hosted database application with NocoDB, an alternative to Airtable.

Firecamp provides API collaboration, documentation, and collections for developers.

REST API specifications in OpenAPI 3.0 format are indexed by APIs.guru.

Singlebase combines document and vector databases with authentication and storage in an AI-focused backend platform.

CoorenLabs provides APIs for information and links across anime, manga, movies, and other entertainment.

A hosted API prototyping service for creating resources and fake records, with free and paid project allowances.

Use Google Sheets as a data store and API with Stein, which also supports creating forms and analyzing sheet data.