Showing 2057 open source projects for "owlapi-api"

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  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

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  • Automate contact and company data extraction Icon
    Automate contact and company data extraction

    Build lead generation pipelines that pull emails, phone numbers, and company details from directories, maps, social platforms. Full API access.

    Generate leads at scale without building or maintaining scrapers. Use 10,000+ ready-made tools that handle authentication, pagination, and anti-bot protection. Pull data from business directories, social profiles, and public sources, then export to your CRM or database via API. Schedule recurring extractions, enrich existing datasets, and integrate with your workflows.
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  • 1
    RAG API

    RAG API

    ID-based RAG FastAPI: Integration with Langchain and PostgreSQL

    rag_api is an open-source REST API for building Retrieval-Augmented Generation (RAG) systems using LLMs like GPT. It lets users index documents, search semantically, and retrieve relevant content for use in generative AI workflows. Designed for rapid prototyping, it is ideal for chatbot development, document assistants, and knowledge-based LLM apps.
    Downloads: 8 This Week
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  • 2
    PHP-CRUD-API

    PHP-CRUD-API

    Single file PHP script that adds a REST API to a SQL database

    Single file PHP script that adds a REST API to a MySQL/MariaDB, PostgreSQL, SQL Server or SQLite database. Howto: Upload "api.php" to your webserver, configure it to connect to your database, have an instant full-featured REST API. This is the TreeQL reference implementation in PHP. This is a single file application! Upload "api.php" somewhere and enjoy! For local development you may run PHP's built-in web server.
    Downloads: 6 This Week
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  • 3
    Nestjs boilerplate Microservice API

    Nestjs boilerplate Microservice API

    Nestjs boilerplate microservice api

    A boilerplate for building microservices with NestJS, this provides a template with essential components for microservice architecture.
    Downloads: 0 This Week
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  • 4
    SQLite JDBC Driver

    SQLite JDBC Driver

    SQLite JDBC Driver

    ...The usage is quite simple; download our sqlite-jdbc library, then append the library (JAR file) to your classpath. SQLite JDBC is a library for accessing SQLite databases through the JDBC API. SQLite supports on-memory database management, which does not create any database files. To use a memory database in your Java code, get the database connection. sqlite-jdbc extracts a native library for your OS to the directory specified by java.io.tmpdir JVM property. To use another directory, set org.sqlite.tmpdir JVM property to your favorite path.
    Downloads: 332 This Week
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  • Inventors: Validate Your Idea, Protect It and Gain Market Advantages Icon
    Inventors: Validate Your Idea, Protect It and Gain Market Advantages

    SenseIP is ideal for individual inventors, startups, and businesses

    senseIP is an AI innovation platform for inventors, automating any aspect of IP from the moment you have an idea. You can have it researched for uniqueness and protected; quickly and effortlessly, without expensive attorneys. Built for business success while securing your competitive edge.
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  • 5
    Grafana

    Grafana

    Leading open-source visualization and observability platform

    Grafana OSS is a leading open-source visualization and observability platform that lets you query, visualize, alert on, and explore your data—regardless of where it’s stored. With support for 100+ data source plugins (such as Prometheus, Loki, Elasticsearch, InfluxDB, SQL/NoSQL databases, OTel, and more), you can unify metrics, logs, traces, and other observability signals in one place. Grafana OSS empowers you to build dynamic, reusable dashboards with rich visualizations, template...
    Downloads: 19 This Week
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  • 6
    PocketBase

    PocketBase

    Open Source realtime backend in 1 file

    PocketBase is an open-source backend written in Go, packaged as a single binary. It features an embedded SQLite database, real-time subscriptions, built-in authentication and file management, a web-based admin dashboard, and a simple REST-style API—ideal for building self‑contained apps on a single server.
    Downloads: 17 This Week
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  • 7
    Hasura GraphQL Engine

    Hasura GraphQL Engine

    Blazing fast, instant realtime GraphQL APIs on your DB

    Hasura is an open-source product that accelerates API development by 10x by giving you GraphQL or REST APIs with built-in authorization on your data, instantly. Run Hasura, locally or in the cloud, and connect it to your new or existing databases to instantly get a production-grade GraphQL API. Developers and architects love Hasura because it takes no time to get started, doesn’t need them to be a GraphQL expert upfront, and saves their teams months of recurring effort in building, shipping, and maintaining their APIs. ...
    Downloads: 3 This Week
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  • 8
    Countries States Cities Database

    Countries States Cities Database

    Discover our global repository of countries, states, and cities

    Full Database of city state country available in JSON, SQL, XML, YAML & CSV format. All Countries, States and cities are Covered and populated with Different Combinations and versions. The API database is regularly updated to ensure the latest data is available to users. Discover our global repository of countries, states, and cities! Get comprehensive data in JSON, SQL, XML, YAML, and CSV formats. Access ISO2, ISO3 codes, country code, capital, native language, time zones (for countries), and more.
    Downloads: 27 This Week
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  • 9
    directus

    directus

    Directus wraps any SQL database with a real-time GraphQL+REST API

    ...Directus is the world's leading Open Data Platform, with millions of downloads, thousands of active developers, and we're just getting warmed up. Start with a new or existing database, using any SQL vendor, Directus takes care of the rest. The Directus API layers on top of your database, providing both REST and GraphQL APIs for your data.
    Downloads: 9 This Week
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  • Desktop and Mobile Device Management Software Icon
    Desktop and Mobile Device Management Software

    It's a modern take on desktop management that can be scaled as per organizational needs.

    Desktop Central is a unified endpoint management (UEM) solution that helps in managing servers, laptops, desktops, smartphones, and tablets from a central location.
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  • 10
    better-sqlite3

    better-sqlite3

    The fastest and simplest library for SQLite3 in Node.js

    The fastest and simplest library for SQLite3 in Node.js. Full transaction support. High performance, efficiency, and safety. Easy-to-use synchronous API (better concurrency than an asynchronous API... yes, you read that correctly). Support for user-defined functions, aggregates, virtual tables, and extensions. 64-bit integers (invisible until you need them). Worker thread support (for large/slow queries). Help this project stay strong! better-sqlite3 is used by thousands of developers and engineers on a daily basis. ...
    Downloads: 10 This Week
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  • 11
    Nhost

    Nhost

    The Open Source Firebase Alternative with GraphQL.

    ...Deploy database and backend changes with the workflow you love (`git push`). Let users upload and download images, documents and other files. The GraphQL API has built in subscriptions to sync data in realtime.
    Downloads: 3 This Week
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  • 12
    Doctrine DBAL

    Doctrine DBAL

    Doctrine database abstraction layer

    Powerful PHP database abstraction layer (DBAL) with many features for database schema introspection and management. The Doctrine database abstraction & access layer (DBAL) offers a lightweight and thin runtime layer around a PDO-like API and a lot of additional, horizontal features like database schema introspection and manipulation through an OO API. The fact that the Doctrine DBAL abstracts the concrete PDO API away through the use of interfaces that closely resemble the existing PDO API makes it possible to implement custom drivers that may use existing native or self-made APIs. ...
    Downloads: 4 This Week
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  • 13
    Eclipse JNoSQL

    Eclipse JNoSQL

    Eclipse JNoSQL is a framework

    Eclipse JNoSQL is a framework designed for Java developers to interact with NoSQL databases in a standardized way. It provides a unified API and supports various NoSQL database types, including document, key-value, column-family, and graph databases. JNoSQL integrates with Jakarta EE and MicroProfile, making it suitable for enterprise applications.
    Downloads: 3 This Week
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  • 14
    Npgsql

    Npgsql

    Npgsql is the .NET data provider for PostgreSQL

    Npgsql is an open source ADO.NET Data Provider for PostgreSQL, it allows programs written in C#, Visual Basic, F# to access the PostgreSQL database server. It is implemented in 100% C# code, is free and is open source. An Entity Framework Core provider is also available and exposes some features unique to the PostgreSQL database to EF Core users. Finally, a legacy Entity Framework 6.x (non-Core) provider is also available but is no longer being actively maintained. Npgsql is the open source...
    Downloads: 69 This Week
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  • 15
    H2 Database

    H2 Database

    H2 is an embeddable RDBMS written in Java

    Welcome to H2, the Java SQL database. Very fast, open source, JDBC API. Embedded and server modes; in-memory databases. Browser-based Console application. Small footprint: around 2.5 MB jar file size. Browser-based Console application. Encrypted databases. Fulltext search. Pure Java with small footprint: around 2.5 MB jar file size. ODBC driver. This database can be used in embedded mode, or in server mode. ou may get a security warning from the firewall.
    Downloads: 12 This Week
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  • 16
    Postgres Meta

    Postgres Meta

    A RESTful API for managing your Postgres. Fetch tables, add roles

    Postgres Meta is a RESTful API for managing PostgreSQL databases, developed by Supabase. It allows users to perform administrative tasks such as creating tables, views, functions, roles, and extensions programmatically through HTTP endpoints. Postgres Meta enables developers to integrate database management directly into dashboards, automation tools, or backend services without requiring SQL access or pgAdmin.
    Downloads: 2 This Week
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  • 17
    FTLDNS

    FTLDNS

    The Pi-hole FTL engine

    ...Interactive, our API can be used to interface with your projects. Insightful: stats normally reserved inside of dnsmasq are made available so you can see what's really happening on your network. Network-level blocking allows you to block ads in non-traditional places such as mobile apps and smart TVs, regardless of hardware or OS.
    Downloads: 8 This Week
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  • 18
    Full Stack FastAPI and PostgreSQL

    Full Stack FastAPI and PostgreSQL

    Full stack, modern web application generator

    ...Celery worker that can import and use models and code from the rest of the backend selectively. REST backend tests based on Pytest, integrated with Docker, so you can test the full API interaction, independent on the database. As it runs in Docker, it can build a new data store from scratch each time.
    Downloads: 2 This Week
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  • 19
    SeaQuery

    SeaQuery

    A dynamic SQL query builder for MySQL, Postgres and SQLite

    SeaQuery is a query builder to help you construct dynamic SQL queries in Rust. You can construct expressions, queries and schema as abstract syntax trees using an ergonomic API. We support MySQL, Postgres and SQLite behind a common interface that aligns their behavior where appropriate.
    Downloads: 4 This Week
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  • 20
    db

    db

    Data access layer for PostgreSQL, CockroachDB, MySQL, SQLite, etc.

    ...We've designed the API with productivity and readability in mind.
    Downloads: 1 This Week
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  • 21
    ArangoDB JavaScript Driver

    ArangoDB JavaScript Driver

    The official ArangoDB JavaScript driver

    ArangoJS is the official JavaScript client for ArangoDB, a multi-model NoSQL database that supports document, key-value, and graph data models. This client provides a powerful yet simple API to interact with ArangoDB from Node.js or browser-based applications.
    Downloads: 5 This Week
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  • 22
    CDC Connectors for Apache Flink

    CDC Connectors for Apache Flink

    CDC Connectors for Apache Flink

    ...So it can fully leverage the ability of Debezium. Supports reading database snapshot and continues to read transaction logs with exactly-once processing even failures happen. CDC connectors for DataStream API, users can consume changes on multiple databases and tables in a single job without Debezium and Kafka deployed. CDC connectors for Table/SQL API, users can use SQL DDL to create a CDC source to monitor changes on a single table. CDC Connectors for Apache Flink® supports ingesting snapshot data and real time changes from databases to Flink®.
    Downloads: 2 This Week
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  • 23
    DynamoDB OneTable

    DynamoDB OneTable

    DynamoDB access and management for one table designs with NodeJS

    DynamoDB OneTable is an abstraction layer for AWS DynamoDB, simplifying schema design, data modeling, and query operations for serverless applications.
    Downloads: 2 This Week
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  • 24
    ClosedXML

    ClosedXML

    A .NET library for reading, manipulating and writing Excel

    ClosedXML is a .NET library for creating and manipulating Excel files without requiring Microsoft Excel, designed for easy integration and performance.
    Downloads: 11 This Week
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  • 25
    RESTHeart

    RESTHeart

    Rapid API Development with MongoDB

    RESTHeart is an open-source middleware that exposes MongoDB databases as a RESTful API, allowing developers to interact with MongoDB using HTTP-based queries instead of traditional drivers.
    Downloads: 0 This Week
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