Have I Been Pwned API v3 Breached Accounts Data Classes API
The Have I Been Pwned (HIBP) API allows the list of pwned accounts (email addresses, domains, passwords, and stealer log entries) to be quickly searched via REST. Authenticated endpoints require an `hibp-api-key` header. All requests must send a `user-agent` header that accurately identifies the consuming application. Subscriptions range from Pwned 1 to Pwned 5. Contact Support: Name: Have I Been Pwned
Overview
Have I Been Pwned API v3 Breached Accounts Data Classes API is a Postman Collection published by Have I Been Pwned on the APIs.io network.
The Have I Been Pwned (HIBP) API allows the list of pwned accounts (email addresses, domains, passwords, and stealer log entries) to be quickly searched via REST. Authenticated endpoints require an hibp-api-key header. All requests must send a user-agent header that accurately identifies the consuming application. Subscriptions range from Pwned 1 to Pwned 5. Contact Support: Name: Have I Been Pwned
The collection contains 1 request organised into 1 folder.
Tagged areas include Security, Data Breaches, Pwned Passwords, Identity, and Threat Intelligence.
Requests & Folders
Related API Specs
Work with this as data
Every collection here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for collections
4 MCP tools reach this
find_collectionsBrowse and filter every collection in the catalog.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
curl for this page
curl "https://apis.io/api/v1/collections/postman-have-i-been-pwned-data-classes-api"curl "https://apis.io/api/v1/collections?limit=25"Discovery needs no key. Ratings and market analysis are Pro.