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Have I Been Pwned

REMOTE · HAVEIBEENPWNED.COM · SCANNED AUG 3

Breach intelligence API: email search, domain monitoring, passwords and stealer logs.

+6 this week 79 Trust /100
Trust breakdown (6 categories)

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score →

Endpoint Security83
Transport & Reachability100
Schema Quality & AI Usability85
  • 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
  • AI-judged instruction clarity (excellent).Pass
  • Tool/resource definitions use about 21697 tokens (~20/item across 1045 items; 17 tools + 1028 resources), lean.Pass
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management27
  • Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 100% of tool parameters carry a description.Pass
  • Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Capabilities100
  • Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Install

Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.

remote · haveibeenpwned.com

# add to Claude Code
claude mcp add --transport http troyhunt-hibp https://haveibeenpwned.com/mcp
# ~/.codex/config.toml
[mcp_servers.troyhunt-hibp]
url = "https://haveibeenpwned.com/mcp"
// opencode.json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "troyhunt-hibp": {
      "type": "remote",
      "url": "https://haveibeenpwned.com/mcp",
      "enabled": true
    }
  }
}
# add to OpenClaw
openclaw mcp add troyhunt-hibp --url https://haveibeenpwned.com/mcp --transport streamable-http
# ~/.hermes/config.yaml
mcp_servers:
  troyhunt-hibp:
    url: "https://haveibeenpwned.com/mcp"
// mcp.json
{
  "mcpServers": {
    "troyhunt-hibp": {
      "type": "http",
      "url": "https://haveibeenpwned.com/mcp"
    }
  }
}

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 2 Aug 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

  • 1 Aug 26 +1
    • Schema quality: good → excellent functional
    • New resource “SplitVPN” functional
  • 31 Jul 26 +3
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 30 Jul 26 +1
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 28 Jul 26 0
    • Schema quality: excellent → good functional
  • 27 Jul 26 +1
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 26 Jul 26 72

    First indexed and scored.

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 3 Aug 2026 · Probed https://haveibeenpwned.com/mcp

TLS valid

Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .

Subject Issuer Valid from Valid until Key Signature Serial
CN=haveibeenpwned.com CN=WE1,O=Google Trust Services,C=US 6 Jul 2026 4 Oct 2026 ECDSA 256 ECDSA-SHA256 fedc68972ec454080ead53894b438e85
SANs: haveibeenpwned.com, cache.haveibeenpwned.com
CN=WE1,O=Google Trust Services,C=US (CA) CN=GTS Root R4,O=Google Trust Services LLC,C=US 13 Dec 2023 20 Feb 2029 ECDSA 256 ECDSA-SHA384 7ff31977972c224a76155d13b6d685e3
CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE 15 Nov 2023 28 Jan 2028 ECDSA 384 SHA256-RSA 7fe530bf331343bedd821610493d8a1b
DNSSEC secure

Validation of haveibeenpwned.com. Secure

Zone DS Keys Algorithms Outcome
. trust_anchor 20326, 38696 8, 8 Verified
com. present 19718 13 Verified
haveibeenpwned.com. present 2371 13 Verified
haveibeenpwned.com. Verified address RRset verified with the apex keys
Authentication No authorisation required

The endpoint answered without asking for a token. Anyone who knows the URL can reach it.

Result No authorisation required
HTTP status 200
Header Value
strict-transport-security max-age=31536000; includeSubDomains; preload
x-content-type-options nosniff
permissions-policy accelerometer=(), camera=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), payment=(), usb=(), interest-cohort=()
Transports 2 probes
Transport URL Outcome Status Location
streamable-http https://haveibeenpwned.com/mcp Verified 200
http (plaintext) http://haveibeenpwned.com/mcp HTTPS enforced 301 https://haveibeenpwned.com/mcp
MCP tools — 17 exposed · ~1,789 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.

Tool Tokens
hibp_generate_domain_verification_dns_token ~77

Generate the TXT record value required to verify domain control via DNS. Requires an authenticated subscription with domain-verification access.

NameTypeReqDescription
domainstringyesThe domain to generate a verification token for.
response_formatstringFormat the text response as markdown (default) or JSON. structuredContent is always returned.
NameTypeReqDescription
domainstring
guidancestringAdditional guidance for resolving the tool error.
messagestringPresent when the tool returns an error.
rateLimitResetAtstringUTC timestamp indicating when the current rate limit window should have reset.
retryAfterHeadersobjectRetry headers that mirror the standard HTTP rate-limit response when applicable.
retryAfterSecondsintegerHow long to wait before retrying, when the tool is rate limited.
statusCodeintegerPresent when the tool returns an error.
txtRecordValuestring

No examples provided.

hibp_get_breach ~71

Look up a single public HIBP breach by its canonical breach name, such as Adobe.

NameTypeReqDescription
namestringyesThe breach name to retrieve, for example Adobe.
response_formatstringFormat the text response as markdown (default) or JSON. structuredContent is always returned.
NameTypeReqDescription
breachobject
guidancestringAdditional guidance for resolving the tool error.
messagestringPresent when the tool returns an error.
rateLimitResetAtstringUTC timestamp indicating when the current rate limit window should have reset.
retryAfterHeadersobjectRetry headers that mirror the standard HTTP rate-limit response when applicable.
retryAfterSecondsintegerHow long to wait before retrying, when the tool is rate limited.
statusCodeintegerPresent when the tool returns an error.

No examples provided.

hibp_get_breached_account ~162

Search HIBP for breaches affecting a single email address. This tool requires an OAuth bearer token.

NameTypeReqDescription
accountstringyesThe email address to search for.
domainstringFilter results to a specific breach domain.
includeUnverifiedbooleanInclude unverified breaches. Defaults to true.
limitintegerMaximum number of items to include in the response. Defaults to 25.
offsetintegerNumber of items to skip before returning results. Defaults to 0.
responseModestringChoose full breach objects, truncated objects, or breach names.
response_formatstringFormat the text response as markdown (default) or JSON. structuredContent is always returned.
NameTypeReqDescription
accountstring
breachesarray
guidancestringAdditional guidance for resolving the tool error.
hasMoreboolean
limitinteger
messagestringPresent when the tool returns an error.
nextOffsetinteger
offsetinteger
rateLimitResetAtstringUTC timestamp indicating when the current rate limit window should have reset.
responseModestring
retryAfterHeadersobjectRetry headers that mirror the standard HTTP rate-limit response when applicable.
retryAfterSecondsintegerHow long to wait before retrying, when the tool is rate limited.
returnedCountinteger
statusCodeintegerPresent when the tool returns an error.
totalCountinteger

No examples provided.

hibp_get_breached_account_range ~131

Query the authenticated HIBP k-anonymity breached-account range endpoint with the first 6 characters of a SHA-1 email hash.

NameTypeReqDescription
limitintegerMaximum number of items to include in the response. Defaults to 25.
offsetintegerNumber of items to skip before returning results. Defaults to 0.
prefixstringyesThe first 6 hexadecimal characters of a SHA-1 hash of an email address.
response_formatstringFormat the text response as markdown (default) or JSON. structuredContent is always returned.
NameTypeReqDescription
guidancestringAdditional guidance for resolving the tool error.
hasMoreboolean
limitinteger
matchCountinteger
matchesarray
messagestringPresent when the tool returns an error.
nextOffsetinteger
offsetinteger
prefixstring
rateLimitResetAtstringUTC timestamp indicating when the current rate limit window should have reset.
retryAfterHeadersobjectRetry headers that mirror the standard HTTP rate-limit response when applicable.
retryAfterSecondsintegerHow long to wait before retrying, when the tool is rate limited.
returnedCountinteger
statusCodeintegerPresent when the tool returns an error.
totalCountinteger

No examples provided.

hibp_get_breached_domain ~110

Return breached aliases for a verified domain. This tool requires an authorized subscription via OAuth bearer token.

NameTypeReqDescription
domainstringyesThe verified domain to search.
limitintegerMaximum number of items to include in the response. Defaults to 25.
offsetintegerNumber of items to skip before returning results. Defaults to 0.
response_formatstringFormat the text response as markdown (default) or JSON. structuredContent is always returned.
NameTypeReqDescription
aliasCountinteger
breachesByAliasobject
domainstring
guidancestringAdditional guidance for resolving the tool error.
hasMoreboolean
limitinteger
messagestringPresent when the tool returns an error.
nextOffsetinteger
offsetinteger
rateLimitResetAtstringUTC timestamp indicating when the current rate limit window should have reset.
retryAfterHeadersobjectRetry headers that mirror the standard HTTP rate-limit response when applicable.
retryAfterSecondsintegerHow long to wait before retrying, when the tool is rate limited.
returnedCountinteger
statusCodeintegerPresent when the tool returns an error.
totalCountinteger

No examples provided.

hibp_get_latest_breach ~51

Return the most recently added public breach currently loaded into HIBP.

NameTypeReqDescription
response_formatstringFormat the text response as markdown (default) or JSON. structuredContent is always returned.
NameTypeReqDescription
breachobject
guidancestringAdditional guidance for resolving the tool error.
messagestringPresent when the tool returns an error.
rateLimitResetAtstringUTC timestamp indicating when the current rate limit window should have reset.
retryAfterHeadersobjectRetry headers that mirror the standard HTTP rate-limit response when applicable.
retryAfterSecondsintegerHow long to wait before retrying, when the tool is rate limited.
statusCodeintegerPresent when the tool returns an error.

No examples provided.

hibp_get_paste_account ~111

Search for public pastes containing an email address. This tool requires an OAuth bearer token.

NameTypeReqDescription
accountstringyesThe email address to search for pastes.
limitintegerMaximum number of items to include in the response. Defaults to 25.
offsetintegerNumber of items to skip before returning results. Defaults to 0.
response_formatstringFormat the text response as markdown (default) or JSON. structuredContent is always returned.
NameTypeReqDescription
accountstring
guidancestringAdditional guidance for resolving the tool error.
hasMoreboolean
limitinteger
messagestringPresent when the tool returns an error.
nextOffsetinteger
offsetinteger
pastesarray
rateLimitResetAtstringUTC timestamp indicating when the current rate limit window should have reset.
retryAfterHeadersobjectRetry headers that mirror the standard HTTP rate-limit response when applicable.
retryAfterSecondsintegerHow long to wait before retrying, when the tool is rate limited.
returnedCountinteger
statusCodeintegerPresent when the tool returns an error.
totalCountinteger

No examples provided.

hibp_get_pwned_passwords_range ~180

Query the public Pwned Passwords k-anonymity API with a 5-character SHA-1 or NTLM prefix and return matching suffixes with prevalence counts.

NameTypeReqDescription
addPaddingbooleanSend the Add-Padding header and discard padded zero-count entries.
limitintegerMaximum number of items to include in the response. Defaults to 25.
modestringUse SHA-1 by default or NTLM when mode is set to ntlm.
offsetintegerNumber of items to skip before returning results. Defaults to 0.
prefixstringyesThe first 5 hexadecimal characters of a SHA-1 or NTLM hash.
response_formatstringFormat the text response as markdown (default) or JSON. structuredContent is always returned.
NameTypeReqDescription
addPaddingboolean
guidancestringAdditional guidance for resolving the tool error.
hasMoreboolean
limitinteger
matchCountinteger
matchesarray
messagestringPresent when the tool returns an error.
modestring
nextOffsetinteger
offsetinteger
prefixstring
rateLimitResetAtstringUTC timestamp indicating when the current rate limit window should have reset.
retryAfterHeadersobjectRetry headers that mirror the standard HTTP rate-limit response when applicable.
retryAfterSecondsintegerHow long to wait before retrying, when the tool is rate limited.
returnedCountinteger
statusCodeintegerPresent when the tool returns an error.
totalCountinteger

No examples provided.

hibp_get_stealer_logs_by_email ~121

Return website domains observed in stealer logs for an email address. Requires an authenticated subscription with stealer-log access.

NameTypeReqDescription
emailstringyesThe email address to search for in stealer logs.
limitintegerMaximum number of items to include in the response. Defaults to 25.
offsetintegerNumber of items to skip before returning results. Defaults to 0.
response_formatstringFormat the text response as markdown (default) or JSON. structuredContent is always returned.
NameTypeReqDescription
domainsarray
emailstring
guidancestringAdditional guidance for resolving the tool error.
hasMoreboolean
limitinteger
messagestringPresent when the tool returns an error.
nextOffsetinteger
offsetinteger
rateLimitResetAtstringUTC timestamp indicating when the current rate limit window should have reset.
retryAfterHeadersobjectRetry headers that mirror the standard HTTP rate-limit response when applicable.
retryAfterSecondsintegerHow long to wait before retrying, when the tool is rate limited.
returnedCountinteger
statusCodeintegerPresent when the tool returns an error.
totalCountinteger

No examples provided.

hibp_get_stealer_logs_by_email_domain ~126

Return email aliases and associated website domains observed in stealer logs for an email domain. Requires an authenticated subscription with stealer-log access.

NameTypeReqDescription
domainstringyesThe email domain to search for in stealer logs.
limitintegerMaximum number of items to include in the response. Defaults to 25.
offsetintegerNumber of items to skip before returning results. Defaults to 0.
response_formatstringFormat the text response as markdown (default) or JSON. structuredContent is always returned.
NameTypeReqDescription
aliasCountinteger
aliasesobject
domainstring
guidancestringAdditional guidance for resolving the tool error.
hasMoreboolean
limitinteger
messagestringPresent when the tool returns an error.
nextOffsetinteger
offsetinteger
rateLimitResetAtstringUTC timestamp indicating when the current rate limit window should have reset.
retryAfterHeadersobjectRetry headers that mirror the standard HTTP rate-limit response when applicable.
retryAfterSecondsintegerHow long to wait before retrying, when the tool is rate limited.
returnedCountinteger
statusCodeintegerPresent when the tool returns an error.
totalCountinteger

No examples provided.

hibp_get_stealer_logs_by_website_domain ~123

Return email addresses observed in stealer logs for a website domain. Requires an authenticated subscription with stealer-log access.

NameTypeReqDescription
domainstringyesThe website domain to search for in stealer logs.
limitintegerMaximum number of items to include in the response. Defaults to 25.
offsetintegerNumber of items to skip before returning results. Defaults to 0.
response_formatstringFormat the text response as markdown (default) or JSON. structuredContent is always returned.
NameTypeReqDescription
domainstring
emailsarray
guidancestringAdditional guidance for resolving the tool error.
hasMoreboolean
limitinteger
messagestringPresent when the tool returns an error.
nextOffsetinteger
offsetinteger
rateLimitResetAtstringUTC timestamp indicating when the current rate limit window should have reset.
retryAfterHeadersobjectRetry headers that mirror the standard HTTP rate-limit response when applicable.
retryAfterSecondsintegerHow long to wait before retrying, when the tool is rate limited.
returnedCountinteger
statusCodeintegerPresent when the tool returns an error.
totalCountinteger

No examples provided.

hibp_get_subscription_status ~54

Return the current subscription details and feature flags for the authenticated OAuth-linked HIBP subscription.

NameTypeReqDescription
response_formatstringFormat the text response as markdown (default) or JSON. structuredContent is always returned.
NameTypeReqDescription
guidancestringAdditional guidance for resolving the tool error.
messagestringPresent when the tool returns an error.
rateLimitResetAtstringUTC timestamp indicating when the current rate limit window should have reset.
retryAfterHeadersobjectRetry headers that mirror the standard HTTP rate-limit response when applicable.
retryAfterSecondsintegerHow long to wait before retrying, when the tool is rate limited.
statusCodeintegerPresent when the tool returns an error.
subscriptionobject

No examples provided.

hibp_list_breaches ~150

List public HIBP breaches, optionally filtered by domain, spam-list flag, and verification status.

NameTypeReqDescription
domainstringFilter to breaches for a specific domain.
includeUnverifiedbooleanInclude unverified breaches. Defaults to true.
isSpamListbooleanFilter to breaches that are or are not flagged as spam lists.
limitintegerMaximum number of items to include in the response. Defaults to 25.
offsetintegerNumber of items to skip before returning results. Defaults to 0.
response_formatstringFormat the text response as markdown (default) or JSON. structuredContent is always returned.
NameTypeReqDescription
breachesarray
guidancestringAdditional guidance for resolving the tool error.
hasMoreboolean
limitinteger
messagestringPresent when the tool returns an error.
nextOffsetinteger
offsetinteger
rateLimitResetAtstringUTC timestamp indicating when the current rate limit window should have reset.
retryAfterHeadersobjectRetry headers that mirror the standard HTTP rate-limit response when applicable.
retryAfterSecondsintegerHow long to wait before retrying, when the tool is rate limited.
returnedCountinteger
statusCodeintegerPresent when the tool returns an error.
totalCountinteger

No examples provided.

hibp_list_data_classes ~56

List the data classes used across public HIBP breach models, such as email addresses or passwords.

NameTypeReqDescription
response_formatstringFormat the text response as markdown (default) or JSON. structuredContent is always returned.
NameTypeReqDescription
dataClassesarray
guidancestringAdditional guidance for resolving the tool error.
messagestringPresent when the tool returns an error.
rateLimitResetAtstringUTC timestamp indicating when the current rate limit window should have reset.
retryAfterHeadersobjectRetry headers that mirror the standard HTTP rate-limit response when applicable.
retryAfterSecondsintegerHow long to wait before retrying, when the tool is rate limited.
statusCodeintegerPresent when the tool returns an error.

No examples provided.

hibp_list_subscribed_domains ~90

List the domains associated with the authenticated HIBP subscription.

NameTypeReqDescription
limitintegerMaximum number of items to include in the response. Defaults to 25.
offsetintegerNumber of items to skip before returning results. Defaults to 0.
response_formatstringFormat the text response as markdown (default) or JSON. structuredContent is always returned.
NameTypeReqDescription
guidancestringAdditional guidance for resolving the tool error.
hasMoreboolean
limitinteger
messagestringPresent when the tool returns an error.
nextOffsetinteger
offsetinteger
rateLimitResetAtstringUTC timestamp indicating when the current rate limit window should have reset.
retryAfterHeadersobjectRetry headers that mirror the standard HTTP rate-limit response when applicable.
retryAfterSecondsintegerHow long to wait before retrying, when the tool is rate limited.
returnedCountinteger
statusCodeintegerPresent when the tool returns an error.
subscribedDomainsarray
totalCountinteger

No examples provided.

hibp_send_domain_verification_email ~97

Send a domain verification email to an approved alias such as admin or security. Requires an authenticated subscription with domain-verification access.

NameTypeReqDescription
domainstringyesThe domain to verify by email.
emailAliasstringyesThe approval alias to send the verification email to, for example admin.
response_formatstringFormat the text response as markdown (default) or JSON. structuredContent is always returned.
NameTypeReqDescription
domainstring
emailAliasstring
emailSentboolean
guidancestringAdditional guidance for resolving the tool error.
messagestringPresent when the tool returns an error.
rateLimitResetAtstringUTC timestamp indicating when the current rate limit window should have reset.
retryAfterHeadersobjectRetry headers that mirror the standard HTTP rate-limit response when applicable.
retryAfterSecondsintegerHow long to wait before retrying, when the tool is rate limited.
statusCodeintegerPresent when the tool returns an error.

No examples provided.

hibp_verify_domain_verification_dns_token ~79

Complete domain verification by checking the expected HIBP TXT record on the target domain. Requires an authenticated subscription with domain-verification access.

NameTypeReqDescription
domainstringyesThe domain to verify by DNS.
response_formatstringFormat the text response as markdown (default) or JSON. structuredContent is always returned.
NameTypeReqDescription
domainstring
guidancestringAdditional guidance for resolving the tool error.
messagestringPresent when the tool returns an error.
rateLimitResetAtstringUTC timestamp indicating when the current rate limit window should have reset.
retryAfterHeadersobjectRetry headers that mirror the standard HTTP rate-limit response when applicable.
retryAfterSecondsintegerHow long to wait before retrying, when the tool is rate limited.
statusCodeintegerPresent when the tool returns an error.
verifiedboolean

No examples provided.