aid: vert-x name: Vert.x description: >- Eclipse Vert.x is a toolkit for building reactive applications on the JVM, providing support for multiple languages including Java, JavaScript, Groovy, Ruby, and Kotlin with an event-driven, non-blocking architecture. Part of the Eclipse Foundation under the Eclipse Public License 2.0. Vert.x follows a polyglot, unopinionated model allowing developers to build microservices, web applications, IoT backends, and event-driven systems with high concurrency using a small memory footprint. type: Index image: https://vertx.io/images/logo-wide.png tags: - Event-Driven - Frameworks - Java - JVM - Microservices - Polyglot - Reactive - Eclipse Foundation - Open Source url: >- https://raw.githubusercontent.com/api-evangelist/vert-x/refs/heads/main/apis.yml created: '2026-03-26' modified: '2026-05-03' specificationVersion: '0.19' apis: - aid: vert-x:vert-x-core name: Vert.x Core description: >- The core toolkit for building reactive, event-driven applications on the JVM. Provides the event loop, verticle deployment, event bus, HTTP server and client, TCP/UDP networking, and the fundamental async programming model used by all Vert.x components. humanURL: https://vertx.io/docs/vertx-core/java/ tags: - Event-Driven - Event Loop - Verticles - Event Bus - Reactive - JVM properties: - type: Documentation url: https://vertx.io/docs/vertx-core/java/ - type: GettingStarted url: https://vertx.io/get-started/ - type: GitHubRepository url: https://github.com/eclipse-vertx/vert.x - type: MavenPackage url: https://central.sonatype.com/artifact/io.vertx/vertx-core - type: JSONSchema url: >- https://raw.githubusercontent.com/api-evangelist/vert-x/refs/heads/main/json-schema/vertx-config.json - type: JSONStructure url: >- https://raw.githubusercontent.com/api-evangelist/vert-x/refs/heads/main/json-structure/vertx-config-structure.json - type: JSONSchema url: >- https://raw.githubusercontent.com/api-evangelist/vert-x/refs/heads/main/json-schema/vertx-deployment-descriptor.json - type: JSONStructure url: >- https://raw.githubusercontent.com/api-evangelist/vert-x/refs/heads/main/json-structure/vertx-deployment-descriptor-structure.json - aid: vert-x:vertx-web name: Vert.x Web description: >- A set of building blocks for building web applications and RESTful HTTP microservices with Vert.x. Provides routing, request handling, session management, template engine support, and WebSocket handling on top of Vert.x Core HTTP server. humanURL: https://vertx.io/docs/vertx-web/java/ tags: - REST - HTTP - Web Framework - Routing - WebSocket properties: - type: Documentation url: https://vertx.io/docs/vertx-web/java/ - type: GitHubRepository url: https://github.com/eclipse-vertx/vert.x - type: MavenPackage url: https://central.sonatype.com/artifact/io.vertx/vertx-web - aid: vert-x:vertx-openapi name: Vert.x OpenAPI description: >- Vert.x OpenAPI provides OpenAPI 3.1 specification support for Vert.x, enabling contract-driven API development with automatic request/response validation, routing, and API specification serving for Vert.x Web applications. humanURL: https://vertx.io/docs/vertx-openapi/java/ tags: - OpenAPI - API Specification - Validation - Contract-Driven properties: - type: Documentation url: https://vertx.io/docs/vertx-openapi/java/ - type: GitHubRepository url: https://github.com/eclipse-vertx/vertx-openapi - type: MavenPackage url: https://central.sonatype.com/artifact/io.vertx/vertx-openapi - aid: vert-x:vertx-grpc name: Vert.x gRPC description: >- A Vert.x-native gRPC implementation providing a reactive, non-blocking gRPC client and server built on top of Vert.x HTTP/2. Supports protobuf service definitions with Vert.x Future and stream-based APIs. humanURL: https://vertx.io/docs/vertx-grpc/java/ tags: - gRPC - Protocol Buffers - HTTP/2 - Streaming properties: - type: Documentation url: https://vertx.io/docs/vertx-grpc/java/ - type: GitHubRepository url: https://github.com/eclipse-vertx/vertx-grpc - type: MavenPackage url: https://central.sonatype.com/artifact/io.vertx/vertx-grpc - aid: vert-x:vertx-sql-client name: Vert.x SQL Client description: >- A high-performance reactive SQL client for Vert.x supporting PostgreSQL, MySQL, Microsoft SQL Server, IBM DB2, and Oracle databases. Provides a non-blocking, fully reactive API for executing queries, transactions, and batch operations. humanURL: https://vertx.io/docs/vertx-pg-client/java/ tags: - SQL - Database - PostgreSQL - MySQL - Reactive properties: - type: Documentation url: https://vertx.io/docs/vertx-pg-client/java/ - type: GitHubRepository url: https://github.com/eclipse-vertx/vertx-sql-client - type: MavenPackage url: https://central.sonatype.com/artifact/io.vertx/vertx-pg-client - aid: vert-x:vertx-auth name: Vert.x Auth description: >- Authentication and authorization support for Vert.x applications. Provides JWT, OAuth2, JDBC, MongoDB, and WebAuthn/FIDO2 authentication providers with a unified async security API that integrates with Vert.x Web routing. humanURL: https://vertx.io/docs/vertx-auth-common/java/ tags: - Authentication - Authorization - JWT - OAuth2 - Security properties: - type: Documentation url: https://vertx.io/docs/vertx-auth-common/java/ - type: GitHubRepository url: https://github.com/eclipse-vertx/vertx-auth - type: MavenPackage url: https://central.sonatype.com/artifact/io.vertx/vertx-auth-common - aid: vert-x:vertx-health-check name: Vert.x Health Check description: >- A Vert.x component for implementing health check endpoints for Kubernetes liveness and readiness probes. Provides a composable health procedure mechanism that aggregates multiple health checks into a single HTTP endpoint response. humanURL: https://vertx.io/docs/vertx-health-check/java/ tags: - Health Check - Kubernetes - Observability - Liveness - Readiness properties: - type: Documentation url: https://vertx.io/docs/vertx-health-check/java/ - type: GitHubRepository url: https://github.com/eclipse-vertx/vertx-health-check - type: MavenPackage url: https://central.sonatype.com/artifact/io.vertx/vertx-health-check - type: JSONSchema url: >- https://raw.githubusercontent.com/api-evangelist/vert-x/refs/heads/main/json-schema/vertx-health-check-schema.json - type: JSONStructure url: >- https://raw.githubusercontent.com/api-evangelist/vert-x/refs/heads/main/json-structure/vertx-health-check-structure.json common: - type: Website url: https://vertx.io/ - type: Documentation url: https://vertx.io/docs/ - type: GettingStarted url: https://vertx.io/get-started/ - type: GitHubOrganization url: https://github.com/eclipse-vertx - type: Blog url: https://vertx.io/blog/ - type: PrivacyPolicy url: https://www.eclipse.org/legal/privacy.php - type: TermsOfService url: https://www.eclipse.org/legal/termsofuse.php - type: License url: https://www.eclipse.org/legal/epl-2.0/ - type: Changelog url: https://github.com/eclipse-vertx/vert.x/blob/master/CHANGELOG.adoc - type: MavenCentral url: https://central.sonatype.com/search?q=io.vertx - type: Forums url: https://groups.google.com/forum/#!forum/vertx - type: StackOverflow url: https://stackoverflow.com/questions/tagged/vert.x - type: Vocabulary url: >- https://raw.githubusercontent.com/api-evangelist/vert-x/refs/heads/main/vocabulary/vert-x-vocabulary.yaml - type: SpectralRules url: >- https://raw.githubusercontent.com/api-evangelist/vert-x/refs/heads/main/rules/vert-x-spectral-rules.yml - type: JSONLDContext url: >- https://raw.githubusercontent.com/api-evangelist/vert-x/refs/heads/main/json-ld/vert-x-context.jsonld - type: Features data: - name: Event-Driven Architecture description: Non-blocking event loop model with verticles for concurrent request handling without traditional threading overhead. - name: Polyglot Support description: Write Vert.x applications in Java, JavaScript, Groovy, Kotlin, Scala, and Ruby on the same JVM platform. - name: Event Bus description: Distributed message-passing backbone enabling communication between verticles across nodes in a cluster. - name: Reactive HTTP Client and Server description: High-performance HTTP/1.1 and HTTP/2 server and client with WebSocket, SSE, and gRPC support. - name: OpenAPI Contract Validation description: Automatic request and response validation against OpenAPI 3.1 specifications using vertx-openapi. - name: Reactive SQL Clients description: Non-blocking, fully reactive SQL clients for PostgreSQL, MySQL, MSSQL, DB2, and Oracle. - name: Authentication and Authorization description: Pluggable security providers for JWT, OAuth2, JDBC, MongoDB, LDAP, and WebAuthn/FIDO2. - name: Health Checks description: Composable health check procedures for Kubernetes liveness and readiness probe endpoints. - name: Clustering description: Built-in cluster support via Hazelcast, Infinispan, Zookeeper, or Apache Ignite for distributed deployments. - name: Virtual Threads description: Java 21 virtual thread support enabling synchronous-style code in Vert.x worker verticles. - type: UseCases data: - name: Microservices Backend description: Build lightweight, high-concurrency microservices with Vert.x Web routing, service proxy patterns, and event bus communication. - name: API Gateway description: Implement reactive API gateways using vertx-http-proxy with routing, authentication, and rate limiting. - name: Real-Time Applications description: Build WebSocket and SSE-based real-time applications for live dashboards, chat, and notification systems. - name: IoT Data Ingestion description: Handle high-volume MQTT and TCP data streams from IoT devices using Vert.x non-blocking networking. - name: Contract-First REST APIs description: Develop OpenAPI 3.1 contract-first REST APIs with automatic validation using vertx-openapi and vertx-web. - type: Integrations data: - name: Quarkus description: Vert.x is the reactive engine underlying Quarkus, providing the event loop and HTTP server for Quarkus applications. - name: Kubernetes description: Deploy Vert.x verticles on Kubernetes with health check endpoints, clustering, and horizontal pod autoscaling. - name: Apache Kafka description: Vert.x Kafka Client provides reactive, non-blocking Kafka producer and consumer integration. - name: Redis description: Vert.x Redis Client enables async Redis operations for caching, pub/sub, and session storage. - name: Hazelcast description: Hazelcast cluster manager for distributed Vert.x deployments with shared data and event bus clustering. - name: Micrometer description: Vert.x Micrometer Metrics provides application metrics integration with Prometheus and Grafana. maintainers: - FN: Kin Lane email: kin@apievangelist.com