HAProxy website screenshot

HAProxy

HAProxy is a free, very fast and reliable reverse-proxy offering high availability, load balancing, and proxying for TCP and HTTP-based applications. It exposes a Data Plane API for dynamic configuration management and a stats socket for runtime management.

HAProxy publishes 1 API on the APIs.io network: Data Plane API. Tagged areas include High Availability, Load Balancing, Networking, and Reverse Proxy.

HAProxy’s developer surface includes documentation, engineering blog, support, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub
31.5/100 thin ▬ flat Agent 19/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemium
3 APIs
High AvailabilityLoad BalancingNetworkingReverse Proxy

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 31.5/100 · thin
Contract Quality 8.1 / 25
Developer Ergonomics 3.0 / 20
Commercial Clarity 10.0 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 5.6 / 10
Agent readiness — 19/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/haproxy: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 3

Individual APIs this provider publishes, each with its own machine-readable definition.

HAProxy Data Plane API

The HAProxy Data Plane API is a REST API for managing HAProxy configuration dynamically. It allows runtime configuration of frontends, backends, servers, ACLs, and other HAProxy...

HAProxy Runtime API

The HAProxy Runtime API (formerly known as the stats socket) is a socket-based interface for dynamically managing HAProxy at runtime. It allows operators to enable or disable se...

HAProxy Kubernetes Ingress Controller

The HAProxy Kubernetes Ingress Controller implements routing rules defined in Kubernetes Ingress resources, dynamically updating HAProxy configuration as pods are added or remov...

Pricing Plans 1

Published pricing tiers and plan structures.

Haproxy Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Haproxy Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Haproxy Finops

FINOPS

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Haproxy Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 GitHubOrganization
GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Community
Community
 Support
Support

Commercial 1

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: haproxy
name: HAProxy
description: HAProxy is a free, very fast and reliable reverse-proxy offering high availability, load balancing, and proxying
  for TCP and HTTP-based applications. It exposes a Data Plane API for dynamic configuration management and a stats socket
  for runtime management.
type: Index
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/haproxy.png
tags:
- High Availability
- Load Balancing
- Networking
- Reverse Proxy
url: https://raw.githubusercontent.com/api-evangelist/haproxy/refs/heads/main/apis.yml
created: '2026-03-16'
modified: '2026-03-18'
specificationVersion: '0.19'
apis:
- aid: haproxy:haproxy-data-plane-api
  name: HAProxy Data Plane API
  description: The HAProxy Data Plane API is a REST API for managing HAProxy configuration dynamically. It allows runtime
    configuration of frontends, backends, servers, ACLs, and other HAProxy objects without requiring configuration file changes
    or restarts.
  humanURL: https://www.haproxy.com/documentation/dataplaneapi/latest/
  baseURL: https://localhost:5555/v2
  tags:
  - Configuration
  - Load Balancing
  - REST API
  properties:
  - type: Documentation
    url: https://www.haproxy.com/documentation/dataplaneapi/latest/
  - type: OpenAPI
    url: https://raw.githubusercontent.com/haproxytech/dataplaneapi/master/swagger.yaml
  - type: GettingStarted
    url: https://www.haproxy.com/documentation/dataplaneapi/latest/#getting-started
  - type: GitHubRepository
    url: https://github.com/haproxytech/dataplaneapi
  - type: ChangeLog
    url: https://github.com/haproxytech/dataplaneapi/releases
- aid: haproxy:haproxy-runtime-api
  name: HAProxy Runtime API
  description: The HAProxy Runtime API (formerly known as the stats socket) is a socket-based interface for dynamically managing
    HAProxy at runtime. It allows operators to enable or disable servers, adjust weights, inspect stick tables, view statistics,
    and perform other live configuration changes without reloading the process.
  humanURL: https://www.haproxy.com/documentation/haproxy-runtime-api/
  baseURL: https://localhost
  tags:
  - Load Balancing
  - Runtime Management
  - Statistics
  properties:
  - type: Documentation
    url: https://www.haproxy.com/documentation/haproxy-runtime-api/
  - type: Reference
    url: https://www.haproxy.com/documentation/haproxy-runtime-api/reference/
- aid: haproxy:haproxy-kubernetes-ingress-controller
  name: HAProxy Kubernetes Ingress Controller
  description: The HAProxy Kubernetes Ingress Controller implements routing rules defined in Kubernetes Ingress resources,
    dynamically updating HAProxy configuration as pods are added or removed from the cluster. It supports the Gateway API,
    custom resources, and certificate management via the HAProxy Runtime API.
  humanURL: https://www.haproxy.com/documentation/kubernetes-ingress/
  baseURL: https://localhost
  tags:
  - Ingress Controller
  - Kubernetes
  - Load Balancing
  properties:
  - type: Documentation
    url: https://www.haproxy.com/documentation/kubernetes-ingress/
  - type: GettingStarted
    url: https://www.haproxy.com/documentation/kubernetes-ingress/overview/
  - type: ChangeLog
    url: https://www.haproxy.com/documentation/kubernetes-ingress/community/release-notes/
  - type: GitHubRepository
    url: https://github.com/haproxytech/kubernetes-ingress
common:
- type: DomainSecurity
  url: security/haproxy-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/haproxy-technologies
- type: Website
  url: https://www.haproxy.org/
- type: Documentation
  url: https://docs.haproxy.org/
- type: GitHubOrganization
  url: https://github.com/haproxy
- type: GitHubOrganization
  url: https://github.com/haproxytech
- type: Community
  url: https://discourse.haproxy.org/
- type: Blog
  url: https://www.haproxy.com/blog/
- type: Support
  url: https://www.haproxy.com/support/support-options
- type: TermsOfService
  url: https://www.haproxy.com/legal
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com