Have I Been Pwned
Have I Been Pwned (HIBP) is a free service operated by Troy Hunt that lets individuals and organizations check whether their email addresses, phone numbers, passwords, or domains have appeared in known data breaches, pastes, or stealer logs. The service aggregates billions of compromised records and exposes both free and paid endpoints, including the k-anonymity Pwned Passwords API. The v3 REST API at haveibeenpwned.com requires an hibp-api-key header for breach, paste, domain, and stealer log endpoints and is offered across Core, Pro, and High RPM subscription tiers.
Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.
API Evangelist profiles Have I Been Pwned the way a machine reads it — 21 machine-readable artifacts across 16 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Have I Been Pwned scores 30.2/100 (thin), with a separate agent-readiness read of 41/100 (agent aware). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile Have I Been Pwned
Each block below is one kind of artifact we hold for Have I Been Pwned. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 16
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Have I Been Pwned API v3
REST API for searching breached accounts, pastes, breach metadata, domain breach data, and stealer log entries. Authentication requires an hibp-api-key header (32-character key)...
Pwned Passwords API
Free, unauthenticated, k-anonymity-based API to check whether a password hash appears in the 800+ million record Pwned Passwords dataset. Clients submit the first five character...
Have I Been Pwned Breach API
The Breach API from Have I Been Pwned — 1 operation(s) for breach.
Have I Been Pwned Breachedaccount API
The Breachedaccount API from Have I Been Pwned — 2 operation(s) for breachedaccount.
Have I Been Pwned Breacheddomain API
The Breacheddomain API from Have I Been Pwned — 1 operation(s) for breacheddomain.
Have I Been Pwned Breaches API
The Breaches API from Have I Been Pwned — 1 operation(s) for breaches.
Have I Been Pwned Dataclasses API
The Dataclasses API from Have I Been Pwned — 1 operation(s) for dataclasses.
Have I Been Pwned Domainverification API
The Domainverification API from Have I Been Pwned — 3 operation(s) for domainverification.
Have I Been Pwned Latestbreach API
The Latestbreach API from Have I Been Pwned — 1 operation(s) for latestbreach.
Have I Been Pwned Pasteaccount API
The Pasteaccount API from Have I Been Pwned — 1 operation(s) for pasteaccount.
Have I Been Pwned Range API
The Range API from Have I Been Pwned — 1 operation(s) for range.
Have I Been Pwned Stealerlogsbyemail API
The Stealerlogsbyemail API from Have I Been Pwned — 1 operation(s) for stealerlogsbyemail.
Have I Been Pwned Stealerlogsbyemaildomain API
The Stealerlogsbyemaildomain API from Have I Been Pwned — 1 operation(s) for stealerlogsbyemaildomain.
Have I Been Pwned Stealerlogsbywebsitedomain API
The Stealerlogsbywebsitedomain API from Have I Been Pwned — 1 operation(s) for stealerlogsbywebsitedomain.
Have I Been Pwned Subscribeddomains API
The Subscribeddomains API from Have I Been Pwned — 1 operation(s) for subscribeddomains.
Have I Been Pwned Subscription API
The Subscription API from Have I Been Pwned — 1 operation(s) for subscription.
Scroll within the panel for all 16 ·
Open Collections 1
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Have I Been Pwned API v3
OPEN COLLECTIONSecurity Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Have I Been Pwned — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 1
Portal, sign-up, and the first successful call
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 3
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 1
Pricing, plans, and the legal terms of use
Company 4
The organization behind the API
← All providers · Data indexed from github.com/api-evangelist/have-i-been-pwned · machine-readable index on apis.io