Should my agent depend on the MCP server io.github.troyhunt/hibp?

Verdict: allow — mid-fast-solo — safe to depend on As of 2026-08-15T11:28:18Z: a dated observation with receipts, not a warranty.

Have I Been Pwned

io.github.troyhunt/hibp

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

— the operator's own registry description reported

Publisher io.github.troyhunt · first seen 2026-08-12 · endpoint https://haveibeenpwned.com/mcp

allow

verdict

mid-fast-solo

cluster

ok_tools

answers

tools served

Dependency rating derived

allow — mid-fast-solo — safe to depend on

Cluster mid-fast-solo · distinctiveness 0.614 (unusual). Every figure is a percentile or class within the 11,094-server census — see the whole spectrum.

Reach — can an agent get to it?

answersalive_tools

latency39 ms

vs populationfast

protocolcurrent

authopen

Use — can it use it?

tools17

vs populationmid

capabilities4

harnessA

Trust — can it rely on it?

identitysolo

servers on its host1

verifiabilityunassessed

duplicate inventoryno

drift events0

answers trueno primary

🔏 Signed receipt rr_5cf663b8e7701d515e5f8a9c · ed25519 · key rs-rcpt-2026-08 — this rating is tamper-evident; an agent gets the full signature from check_server and can verify it against the published key.

Tools last seen

hibp_generate_domain_verification_dns_token hibp_get_breach hibp_get_breached_account hibp_get_breached_account_range hibp_get_breached_domain hibp_get_latest_breach hibp_get_paste_account hibp_get_pwned_passwords_range hibp_get_stealer_logs_by_email hibp_get_stealer_logs_by_email_domain hibp_get_stealer_logs_by_website_domain hibp_get_subscription_status hibp_list_breaches hibp_list_data_classes hibp_list_subscribed_domains hibp_send_domain_verification_email hibp_verify_domain_verification_dns_token

Harness readiness observed

Can an agent's harness pick this tool and call it correctly? Graded on the three things an agent reads — name, description, typed parameters. Band A — an agent can pick and call these reliably.

legibility check	tools passing	ok
name is clear & specific	17/17	✓
has a description	17/17	✓
description is substantive	17/17	✓
parameters are typed	17/17	✓
parameters are described	17/17	✓

17 of 17 tools graded · 17 with a captured input schema. RS-008, Tier-1 — no domain knowledge, applies to any tool. “Alive” is not the same as “usable”.

Truth checks observed

Not in the Tier-2 trade lane, or not yet checked. Tier-2 re-derives a server's answers against published primary sources — see truth checks.

Protocol conformance observed

2025-06-18

protocol version

—

session model

0.0.0

server version hibp-mcp-server

Capabilities: completions prompts resources tools

Drift

No confirmed drift on record. Baseline set 2026-08-14; changes appear here after human review.

History observed

Every probe we made, oldest → newest (2 shown, 2026-08-12 → 2026-08-14). Green answered · amber answered-but-walled · red no useful answer. A gap in our cadence is a gap in coverage, not evidence about the server.

changelog (1 events)

date	type	what changed
2026-08-12	outcome	first probe: ok_tools

raw probe records

probed (UTC)	outcome	http	ms	protocol
2026-08-14T20:00:16Z	ok_tools	200	39	2025-06-18
2026-08-12T05:35:29Z	ok_tools	200	46	2025-06-18

Watch or embed this verdict

Operators: put the live verdict in your README — it updates with every census, links back here, and is a dated observation, never a warranty:

[![Robin Saige verdict](https://robinsaige.com/badge/io.github.troyhunt/hibp.svg)](https://robinsaige.com/s/io.github.troyhunt/hibp)

Depend on it? Subscribe to its change feed — outcome changes and confirmed drift, no account needed. Building on it? The full dossier as JSON — verdict, rating, truth checks, history — stable enough to gate CI on.

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