Apache HttpComponents

aid: apache-http
name: Apache HttpComponents
description: Apache HttpComponents is a set of Java HTTP components, including a feature-rich HTTP client (HttpClient 5.x)
  and HTTP server components. It provides connection pooling, async I/O, TLS/SSL support, authentication, cookie management,
  and content negotiation for Java applications making HTTP requests.
type: Index
position: Consumer
access: 3rd-Party
image: https://kinlane-productions2.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
- Apache
- HTTP Client
- Java
- Open Source
- SDK
created: '2026-03-16'
modified: '2026-05-19'
url: https://raw.githubusercontent.com/api-evangelist/apache-http/refs/heads/main/apis.yml
specificationVersion: '0.19'
apis:
- aid: apache-http:apache-http-client-api
  name: Apache HttpComponents Client API
  description: Java HTTP client library API for executing HTTP requests with connection pooling, async I/O, TLS/SSL, authentication,
    cookie management, and proxy support via Apache HttpComponents 5.x.
  humanURL: https://hc.apache.org/httpcomponents-client-5.3.x/
  tags:
  - Authentication
  - Connection Pooling
  - HTTP Client
  - Java
  - TLS
  properties:
  - type: Documentation
    url: https://hc.apache.org/httpcomponents-client-5.3.x/
  - type: OpenAPI
    url: openapi/apache-http-client-openapi.yml
  - type: JSONSchema
    url: json-schema/http-client-httprequest-schema.json
  - type: JSONLD
    url: json-ld/apache-http-client-context.jsonld
  - type: NaftikoCapability
    url: capabilities/client-configuration.yaml
  - type: NaftikoCapability
    url: capabilities/client-requests.yaml
- aid: apache-http:apache-http-java-sdk
  name: Apache HttpComponents Java SDK
  description: Maven artifact for Apache HttpComponents HttpClient 5.x providing full HTTP client functionality including
    fluent API, async client, and reactive streams support.
  humanURL: https://hc.apache.org/httpcomponents-client-5.3.x/dependency-info.html
  tags:
  - Java
  - Maven
  - SDK
  properties:
  - type: Documentation
    url: https://hc.apache.org/httpcomponents-client-5.3.x/dependency-info.html
  - type: SDK
    url: https://search.maven.org/artifact/org.apache.httpcomponents.client5/httpclient5
    title: Java SDK (Maven Central)
common:
- type: Documentation
  url: https://hc.apache.org/
- type: GettingStarted
  url: https://hc.apache.org/httpcomponents-client-5.3.x/quickstart.html
- type: GitHubOrganization
  url: https://github.com/apache
- type: GitHubRepository
  url: https://github.com/apache/httpcomponents-client
- type: SpectralRules
  url: rules/apache-http-spectral-rules.yml
- type: Vocabulary
  url: vocabulary/apache-http-vocabulary.yaml
- type: Features
  data:
  - name: Connection Pooling
    description: Configurable connection pool with per-route and total connection limits for efficient HTTP connection reuse.
  - name: Async HTTP Client
    description: Non-blocking async HTTP client based on Java NIO for high-concurrency request execution.
  - name: TLS/SSL Support
    description: Full TLS/SSL support with customizable trust stores, client certificates, and hostname verification.
  - name: Authentication Framework
    description: Pluggable authentication framework supporting Basic, Digest, NTLM, and Bearer token schemes.
  - name: Cookie Management
    description: RFC-compliant cookie management with customizable cookie stores and policies.
  - name: Proxy Support
    description: HTTP, HTTPS, and SOCKS proxy support with proxy authentication.
  - name: Content Negotiation
    description: Built-in content encoding, compression (gzip/deflate), and charset negotiation.
  - name: Fluent API
    description: High-level fluent API for simplified one-liner HTTP request execution.
- type: UseCases
  data:
  - name: REST API Client Integration
    description: Consume REST APIs from Java applications with connection pooling and retry logic.
  - name: Web Scraping
    description: Crawl and fetch web content with cookie handling and redirect following.
  - name: Microservices HTTP Communication
    description: Make service-to-service HTTP calls with connection reuse and timeout configuration.
  - name: Authentication Token Refresh
    description: Implement OAuth2 token refresh flows using the authentication interceptor framework.
  - name: File Upload and Download
    description: Stream large file uploads and downloads via multipart or chunked transfer encoding.
- type: Integrations
  data:
  - name: Spring Framework
    description: Spring RestTemplate and WebClient use Apache HttpComponents as a configurable HTTP backend.
  - name: Apache CXF
    description: Apache CXF JAX-RS client uses HttpComponents for HTTP transport in web service calls.
  - name: Elasticsearch Java Client
    description: Elasticsearch Java client uses HttpComponents for transport-layer HTTP communication.
  - name: Apache Solr
    description: Apache Solr Java client (SolrJ) uses HttpComponents for Solr HTTP API calls.
maintainers:
- FN: Kin Lane
  email: [email protected]