Whisper

Name: Whisper
Author: whisper-sec

MCP serverMCP

One routable IPv6 per AI agent, verifiable from the DNS root. Keyless tools need no signup.

by whisper-secrepository ↗homepage ↗v0.219.4

Is this yours?

This record is unclaimed

Wellknown found it in public sources; nobody has proven control of it yet. Claiming takes one click if the repository is under your GitHub account, or a small file on your domain otherwise. Verified owners get the badge, 15-minute checks, status alerts, edits that outrank crawled data, and a ranking boost.

Agents can do it too: POST https://wellknown.network/api/v1/claims with {"agent":"whisper","method":"well_known_file"} — machine-readable steps at claim.json, guide at /docs/claim.

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Observed by Wellknown

Evidence

Everything here was measured by our prober or read from a registry. Nothing is self-reported.

30-day availability57/57 checks ok

when	check	result	http	latency	detail
37 min ago	mcp initialize	ok	200	4 ms	server whisper 0.219.2 · protocol 2025-06-18 · 17 tools
8 h ago	mcp initialize	ok	200	41 ms	server whisper 0.219.2 · protocol 2025-06-18 · 17 tools
14 h ago	mcp initialize	ok	200	36 ms	server whisper 0.219.2 · protocol 2025-06-18 · 17 tools
20 h ago	mcp initialize	ok	200	5 ms	server whisper 0.219.2 · protocol 2025-06-18 · 17 tools
26 h ago	mcp initialize	ok	200	8 ms	server whisper 0.219.2 · protocol 2025-06-18 · 17 tools
33 h ago	mcp initialize	ok	200	5 ms	server whisper 0.219.2 · protocol 2025-06-18 · 17 tools
2 d ago	mcp initialize	ok	200	4 ms	server whisper 0.219.2 · protocol 2025-06-18 · 17 tools
2 d ago	mcp initialize	ok	200	5 ms	server whisper 0.219.2 · protocol 2025-06-18 · 17 tools
2 d ago	mcp initialize	ok	200	3 ms	server whisper 0.219.2 · protocol 2025-06-18 · 17 tools
3 d ago	mcp initialize	ok	200	4 ms	server whisper 0.219.2 · protocol 2025-06-18 · 17 tools

Tools observed via MCP handshake

whisper_signup — Start or complete Whisper signup from an email address alone, and receive an API key that unlocks the provisioning and governance skills on this card. Send {"em
whisper_verify — Is this IPv6 address or hostname a real Whisper agent, and whose? Grades the full keyless trust chain: the reverse DNS record, the forward AAAA confirming it ba
whisper_rdap — The public registration record for any address in Whisper's space, in RFC 9083 form: the handle, the agent's label, its country, and the entities behind it. The
whisper_identify — Identify an indicator (domain, IP, hash, …) against the graph. Answers without an API key. Example call: {"skill":"identify","input":"example.com"}
whisper_assess — Assess the risk/policy posture of one or more indicators. Answers without an API key. Example call: {"skill":"assess","input":"example.com"}
whisper_walk — Walk the graph from an indicator across its relationships. Answers without an API key. Example call: {"skill":"walk","input":"example.com"}
whisper_watch — Watch an indicator for change/activity over time. Answers without an API key. Example call: {"skill":"watch","input":{"action":"list"}}
whisper_explain — Explain a verdict - the evidence and reasoning behind it. Answers without an API key. Example call: {"skill":"explain","input":"example.com"}
whisper_variants — Enumerate variants/permutations of an indicator. Answers without an API key. Example call: {"skill":"variants","input":"example.com"}
whisper_origins — Trace the origins/provenance of an indicator. Answers without an API key. Example call: {"skill":"origins","input":"example.com"}
whisper_history — Historical records for an indicator (incl. whois/bgp history). Answers without an API key. Example call: {"skill":"history","input":"example.com"}
whisper_lookupTlsFingerprint — Look up a TLS (JA3/JA4) fingerprint in the graph. Answers without an API key. Example call: {"skill":"lookupTlsFingerprint","input":"ja3:771,4865-4866-4867"}
whisper_lookupTorRelay — Look up Tor relay metadata for an address. Answers without an API key. Example call: {"skill":"lookupTorRelay","input":"185.220.101.1"}
whisper_asset — Resolve an asset and its catalog of attributes. Answers without an API key. Example call: {"skill":"asset","input":"example.com"}
whisper_threatintel — Threat-intelligence indicator family (candidate apex/CDN/hosting). A family verb: name the sub-verb as "sub" alongside the input. Sub-verbs: candidateCdnApex, c
whisper_psl — Public-suffix-list family (tld-plus-one, is-public-suffix, affiliation). A family verb: name the sub-verb as "sub" alongside the input. Sub-verbs: tldPlusOne, i
whisper_topAsnsByPrefixCount — Top ASNs ranked by announced-prefix count. Answers without an API key. Example call: {"skill":"topAsnsByPrefixCount","input":10}

Provenance

Where this record came from

Every source is kept verbatim. Field changes are logged as events.

Official MCP Registryio.github.whisper-sec/whisper

first seen 1 mo ago · fetched 2 d agoopen ↗

Field history (12 recent events)

15 d ago · declared · name → "Whisper"
15 d ago · declared · summary → "One routable IPv6 per AI agent, verifiable from the DNS root. Keyless tools need no signup."
15 d ago · declared · description → "One routable IPv6 per AI agent, verifiable from the DNS root. Keyless tools need no signup."
15 d ago · declared · version → "0.219.4"
20 d ago · declared · version → "0.219.2"
25 d ago · declared · version → "0.214.0"
1 mo ago · declared · summary → "Keyless: verify agent identities & RDAP for a /128. With a key: register, govern & egress agents."
1 mo ago · declared · protocols → ["mcp"]
1 mo ago · declared · description → "Keyless: verify agent identities & RDAP for a /128. With a key: register, govern & egress agents."
1 mo ago · declared · publisherName → "whisper-sec"
1 mo ago · declared · homepageUrl → "https://whisper.online"
1 mo ago · declared · repoUrl → "https://github.com/whisper-sec/whisper-cli"

Whisper

This record is unclaimed

Evidence

What the publisher says

Capabilities

Where this record came from