MCP server

Whisper

io.github.whisper-sec/whisper

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

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

Website Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

17

Token cost

About 2,383 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http whisper https://whisper.online/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.whisper]
url = "https://whisper.online/mcp"

Gemini CLI

{"mcpServers":{"whisper":{"httpUrl":"https://whisper.online/mcp"}}}

Cursor

{"mcpServers":{"whisper":{"url":"https://whisper.online/mcp"}}}

VS Code

{"servers":{"whisper":{"type":"http","url":"https://whisper.online/mcp"}}}

Antigravity

agy mcp add whisper https://whisper.online/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"whisper","server_url":"https://whisper.online/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"whisper","server_url":"https://whisper.online/mcp"}

Tools

• whisper_assess ~117 tokens
  Assess the risk/policy posture of one or more indicators. Answers without an API key. Example call: {"skill":"assess","input":"example.com"}
• whisper_asset ~113 tokens
  Resolve an asset and its catalog of attributes. Answers without an API key. Example call: {"skill":"asset","input":"example.com"}
• whisper_explain ~117 tokens
  Explain a verdict - the evidence and reasoning behind it. Answers without an API key. Example call: {"skill":"explain","input":"example.com"}
• whisper_history ~119 tokens
  Historical records for an indicator (incl. whois/bgp history). Answers without an API key. Example call: {"skill":"history","input":"example.com"}
• whisper_identify ~119 tokens
  Identify an indicator (domain, IP, hash, …) against the graph. Answers without an API key. Example call: {"skill":"identify","input":"example.com"}
• whisper_lookupTlsFingerprint ~129 tokens
  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 ~118 tokens
  Look up Tor relay metadata for an address. Answers without an API key. Example call: {"skill":"lookupTorRelay","input":"185.220.101.1"}
• whisper_origins ~114 tokens
  Trace the origins/provenance of an indicator. Answers without an API key. Example call: {"skill":"origins","input":"example.com"}
• whisper_psl ~196 tokens
  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, isPublicSuffix, affiliation.. Answers without an API key. Example call: {"skill":"psl","sub":"tldPlusOne","input":"a.b.example.co.uk"}
• whisper_rdap ~188 tokens
  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 same document the RDAP service serves at /ip/{address}, which any RDAP client can already read. Answers without an API key. Example call: {
• whisper_signup ~187 tokens
  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 {"email":"..."} to start; a six-digit code arrives by email; send {"signup_id":"...","code":"123456"} to complete. No human step, no account nee
• whisper_threatintel ~184 tokens
  Threat-intelligence indicator family (candidate apex/CDN/hosting). A family verb: name the sub-verb as "sub" alongside the input. Sub-verbs: candidateCdnApex, candidateMultiTenantApex, candidateSharedHostingIp.. Answers without an API key. Example call: {"skill":"threatintel","sub":"candidateCdnApex
• whisper_topAsnsByPrefixCount ~97 tokens
  Top ASNs ranked by announced-prefix count. Answers without an API key. Example call: {"skill":"topAsnsByPrefixCount","input":10}
• whisper_variants ~115 tokens
  Enumerate variants/permutations of an indicator. Answers without an API key. Example call: {"skill":"variants","input":"example.com"}
• whisper_verify ~244 tokens
  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 back to the same address, and the DANE-EE certificate pin published in DNSSEC-signed DNS. Returns is_whisper_agent with the evidence for the v
• whisper_walk ~116 tokens
  Walk the graph from an indicator across its relationships. Answers without an API key. Example call: {"skill":"walk","input":"example.com"}
• whisper_watch ~110 tokens
  Watch an indicator for change/activity over time. Answers without an API key. Example call: {"skill":"watch","input":{"action":"list"}}

Browse

• GitHub tools
• Domains and DNS
• Email
• Hiring and jobs
• GitHub and code hosting

Related MCP servers

• Mercury X402
  Agent-payable web data over x402: 18 keyless services an agent pays per call.
• Abundance Apis
  Try 26 utility REST APIs keylessly: NAICS classification, IP geo, email validation, currency.
• Ipaddress
  IP address utilities MCP.
• Ipquery
  IPQuery MCP.
• Peeringdb
  PeeringDB MCP — the peering ecosystem database.
• Andreax
  270 pay-per-call AI tools for agents, paid via x402 (USDC on Base). No signup, no API keys.
• Worms
  WoRMS (World Register of Marine Species) MCP — keyless.
• XRPLHub — XRPLScore, MPT issuer risk & payment pre-checks
  XRPL wallet scores, wallet permissions, batch send, MPT risk, screening, pre-checks. Never signs.

Badge for your README

[![AptLynx](https://aptlynx.net/badge/io.github.whisper-sec/whisper.svg)](https://aptlynx.net/servers/io.github.whisper-sec/whisper)

Listing text is written by the maker; AptLynx lists tools and does not vouch for them. Find another tool · Browse by topic · For agents