HostBill website screenshot

HostBill

HostBill is a comprehensive billing and automation software for web hosting providers, domain registrars, and online service companies. HostBill provides an Admin API that enables custom applications to call HostBill functions remotely via HTTP protocol or from HostBill modules.

HostBill publishes 8 APIs on the APIs.io network, including Accounts API, Admin API, Clients API, and 5 more. Tagged areas include Automation, Billing, Domain Registration, and Web Hosting.

HostBill’s developer surface includes authentication, documentation, support, engineering blog, and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub
37.9/100 thin ▬ flat Agent 31/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemiumSelf serve⚡ Free to try
8 APIs
AutomationBillingDomain RegistrationWeb Hosting

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 37.9/100 · thin
Contract Quality 13.5 / 25
Developer Ergonomics 5.2 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 6.5 / 10
Agent readiness — 31/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 0 / 12
Machine-Readable Auth 10 / 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/hostbill: 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 8

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

HostBill Accounts API

The Accounts API from HostBill — 1 operation(s) for accounts.

HostBill Admin API

The Admin API from HostBill — 1 operation(s) for admin.

HostBill Clients API

The Clients API from HostBill — 1 operation(s) for clients.

HostBill Domains API

The Domains API from HostBill — 1 operation(s) for domains.

HostBill Invoices API

The Invoices API from HostBill — 1 operation(s) for invoices.

HostBill Orders API

The Orders API from HostBill — 1 operation(s) for orders.

HostBill Tickets API

The Tickets API from HostBill — 1 operation(s) for tickets.

HostBill Transactions API

The Transactions API from HostBill — 1 operation(s) for transactions.

Scroll for all 8

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

HostBill Admin API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Hostbill Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Hostbill Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Hostbill Finops

FINOPS

Security Posture 3

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

Hostbill Authentication

apiKey · 2 schemes

SECURITY

Hostbill Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Hostbill Vulnerability Disclosure

disclosure policy published

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Hostbill Agentic Access

8 operations · 8 acting

8 operations · 8 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

VulnerabilityDisclosure
VulnerabilityDisclosure
 DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

Support
Support

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: hostbill
name: HostBill
description: HostBill is a comprehensive billing and automation software for web hosting providers, domain registrars, and
  online service companies. HostBill provides an Admin API that enables custom applications to call HostBill functions remotely
  via HTTP protocol or from HostBill modules.
type: Index
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/hostbill.png
tags:
- Automation
- Billing
- Domain Registration
- Web Hosting
url: https://raw.githubusercontent.com/api-evangelist/hostbill/refs/heads/main/apis.yml
created: '2025-02-09'
modified: '2026-05-19'
specificationVersion: '0.19'
apis:
- aid: hostbill:hostbill-accounts-api
  name: HostBill Accounts API
  description: The Accounts API from HostBill — 1 operation(s) for accounts.
  humanURL: https://api2.hostbillapp.com/
  baseURL: https://yourinstance.hostbillapp.com/api2.php
  tags:
  - Accounts
  properties:
  - type: OpenAPI
    url: openapi/hostbill-accounts-api-openapi.yml
  - type: Documentation
    url: https://api2.hostbillapp.com/
  - type: Authentication
    url: https://api2.hostbillapp.com/
- aid: hostbill:hostbill-admin-api
  name: HostBill Admin API
  description: The Admin API from HostBill — 1 operation(s) for admin.
  humanURL: https://api2.hostbillapp.com/
  baseURL: https://yourinstance.hostbillapp.com/api2.php
  tags:
  - Admin
  properties:
  - type: OpenAPI
    url: openapi/hostbill-admin-api-openapi.yml
  - type: Documentation
    url: https://api2.hostbillapp.com/
  - type: Authentication
    url: https://api2.hostbillapp.com/
- aid: hostbill:hostbill-clients-api
  name: HostBill Clients API
  description: The Clients API from HostBill — 1 operation(s) for clients.
  humanURL: https://api2.hostbillapp.com/
  baseURL: https://yourinstance.hostbillapp.com/api2.php
  tags:
  - Clients
  properties:
  - type: OpenAPI
    url: openapi/hostbill-clients-api-openapi.yml
  - type: Documentation
    url: https://api2.hostbillapp.com/
  - type: Authentication
    url: https://api2.hostbillapp.com/
- aid: hostbill:hostbill-domains-api
  name: HostBill Domains API
  description: The Domains API from HostBill — 1 operation(s) for domains.
  humanURL: https://api2.hostbillapp.com/
  baseURL: https://yourinstance.hostbillapp.com/api2.php
  tags:
  - Domains
  properties:
  - type: OpenAPI
    url: openapi/hostbill-domains-api-openapi.yml
  - type: Documentation
    url: https://api2.hostbillapp.com/
  - type: Authentication
    url: https://api2.hostbillapp.com/
- aid: hostbill:hostbill-invoices-api
  name: HostBill Invoices API
  description: The Invoices API from HostBill — 1 operation(s) for invoices.
  humanURL: https://api2.hostbillapp.com/
  baseURL: https://yourinstance.hostbillapp.com/api2.php
  tags:
  - Invoices
  properties:
  - type: OpenAPI
    url: openapi/hostbill-invoices-api-openapi.yml
  - type: Documentation
    url: https://api2.hostbillapp.com/
  - type: Authentication
    url: https://api2.hostbillapp.com/
- aid: hostbill:hostbill-orders-api
  name: HostBill Orders API
  description: The Orders API from HostBill — 1 operation(s) for orders.
  humanURL: https://api2.hostbillapp.com/
  baseURL: https://yourinstance.hostbillapp.com/api2.php
  tags:
  - Orders
  properties:
  - type: OpenAPI
    url: openapi/hostbill-orders-api-openapi.yml
  - type: Documentation
    url: https://api2.hostbillapp.com/
  - type: Authentication
    url: https://api2.hostbillapp.com/
- aid: hostbill:hostbill-tickets-api
  name: HostBill Tickets API
  description: The Tickets API from HostBill — 1 operation(s) for tickets.
  humanURL: https://api2.hostbillapp.com/
  baseURL: https://yourinstance.hostbillapp.com/api2.php
  tags:
  - Tickets
  properties:
  - type: OpenAPI
    url: openapi/hostbill-tickets-api-openapi.yml
  - type: Documentation
    url: https://api2.hostbillapp.com/
  - type: Authentication
    url: https://api2.hostbillapp.com/
- aid: hostbill:hostbill-transactions-api
  name: HostBill Transactions API
  description: The Transactions API from HostBill — 1 operation(s) for transactions.
  humanURL: https://api2.hostbillapp.com/
  baseURL: https://yourinstance.hostbillapp.com/api2.php
  tags:
  - Transactions
  properties:
  - type: OpenAPI
    url: openapi/hostbill-transactions-api-openapi.yml
  - type: Documentation
    url: https://api2.hostbillapp.com/
  - type: Authentication
    url: https://api2.hostbillapp.com/
common:
- type: AgenticAccess
  url: agentic-access/hostbill-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/hostbill-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/hostbill-domain-security.yml
- type: Authentication
  url: authentication/hostbill-authentication.yml
- type: GitHubOrganization
  url: https://github.com/hostbill
- type: LinkedIn
  url: https://www.linkedin.com/company/hostbill
- type: Website
  url: https://hostbillapp.com/
- type: Documentation
  url: https://hostbillapp.com/features/
- type: Support
  url: https://hostbillapp.com/support/
- url: https://blog.hostbillapp.com/feed/
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com