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WhoisFreaks MCP server

21 operations0 webhooks

Domain and network intelligence API for WHOIS, DNS, SSL, subdomains, domain availability, typosquatting, IP and ASN data, geolocation, and reputation lookups.

Use WhoisFreaks in Claude, ChatGPT, Cursor or another MCP client

Connect WhoisFreaks once in Corsair, then add one MCP address to your agent.

Connect WhoisFreaks
Setup steps for Claude, ChatGPT, Cursor and Claude Code

Building your own app on the Corsair SDK? Get API keys

Try WhoisFreaks with your agent

Connect WhoisFreaks, then paste this into Claude, ChatGPT or Cursor. For ideas from other apps, see the use cases.

Using Corsair, show me what you can do in WhoisFreaks on my account, then run one read-only example and show me the result.

Runs once, when you ask

WhoisFreaks tools and triggers

Tools are what your agent can do in WhoisFreaks through Corsair's MCP server. Triggers are the WhoisFreaks events a routine can start from.

Dns

  • BulkRead-only

    Fetch DNS records for up to 100 domains and IPs at once

    dns.bulk

  • HistoricalRead-only

    Fetch historical DNS records for a domain

    dns.historical

  • LiveRead-only

    Fetch live DNS records for a domain or IP

    dns.live

  • ReverseRead-only

    Find domains pointing at an IP or record value

    dns.reverse

Availability

  • Bulk CheckRead-only

    Check availability for up to 100 domains or TLDs at once

    availability.bulkCheck

  • CheckRead-only

    Check whether a domain is available for registration

    availability.check

Geolocation

  • Bulk LookupRead-only

    Look up geolocation data for up to 100 IPs at once

    geolocation.bulkLookup

  • LookupRead-only

    Look up geolocation data for an IP address

    geolocation.lookup

Ip Reputation

  • Bulk LookupRead-only

    Fetch threat reputation for up to 100 IPs at once

    ipReputation.bulkLookup

  • LookupRead-only

    Fetch threat reputation for an IP address

    ipReputation.lookup

Asn Whois

  • LookupRead-only

    Fetch WHOIS data for an autonomous system number

    asnWhois.lookup

Bulk Whois

  • LookupRead-only

    Fetch WHOIS records for up to 100 domains at once

    bulkWhois.lookup

Connect WhoisFreaks to Claude, ChatGPT or Cursor

  1. 1

    Connect WhoisFreaks in Corsair

    Add your WhoisFreaks API key once in Corsair. Corsair stores the credential encrypted and makes the WhoisFreaks API calls for your agent, so it never goes into a prompt or a config file. Connect WhoisFreaks

    If your link lets the agent add apps, you can skip this: it gives you a sign-in link the first time it needs WhoisFreaks. On a ChatGPT personal plan, connect WhoisFreaks here first.

  2. 2

    Add Corsair's MCP server to your agent

    Every client uses the same address:

    https://mcp.corsair.dev/mcp
    Open Customize → Connectors → Add custom connector, paste the address, then select Connect.

    Codex, Gemini CLI, VS Code, Zed and other clients with OAuth sign-in work the same way. Clients without it, such as GitHub Copilot's coding agent, use a link's own address and an API key. Setup for every client

  3. 3

    Sign in and choose what needs your approval

    Your client opens Corsair to sign in. Pick a link: the apps your agent can use and a mode that decides what it may do without asking. Every WhoisFreaks operation only reads data, so it runs right away in every mode.

FAQ

Install corsair and @corsair-dev/whoisfreaks, add the WhoisFreaks plugin, and connect with an API key. Then call methods like corsair.whoisfreaks.api.asnWhois.lookup() from your app. Corsair keeps each tenant isolated.

Yes. WhoisFreaks requires an API key from your WhoisFreaks account or developer dashboard. Create credentials with access that matches what you automate, then paste them into Corsair or connect through managed auth in Hub.

Yes. One Corsair client can hit WhoisFreaks, GitHub, Notion, Stripe, and the rest. Trigger WhoisFreaks from a webhook, push updates to Slack, or chain actions across plugins. Same tenant context across integrations, plain TypeScript.

Teams use Corsair for domain and network intelligence api for whois, dns, ssl, subdomains, domain availability, typosquatting, ip and asn data, geolocation, and reputation lookups. Common builds include sync jobs, admin tooling, and agents that call WhoisFreaks APIs from your backend.

The SDK is open source. Self-host and you pay Corsair nothing for the integration layer. Hub bills for hosted auth and execution, not per WhoisFreaks API call. Hub has a generous free tier. For hobby projects you can probably run the whole thing on free. Paid plans start to matter with more tenants or heavier traffic.

We maintain @corsair-dev/whoisfreaks in the open repo. When WhoisFreaks ships API changes, upgrade the package. Your call sites stay typed. You should not need to rewrite the integration layer each time.

No. Corsair does not read your WhoisFreaks data or hold individual access credentials. Credentials stay in your database. API calls run on your instance. We do not store WhoisFreaks data on your behalf.

Yes. Add https://mcp.corsair.dev/mcp as a custom connector or MCP server in Claude, ChatGPT, Cursor, VS Code, Claude Code, Codex or any client that supports remote MCP servers with OAuth sign-in, then sign in to Corsair. On ChatGPT personal plans, custom servers currently get read tools only.

Yes. Put WhoisFreaks on a link in Strict mode and every write waits for your approval, while destructive actions are refused. Every WhoisFreaks operation only reads data, so there are no changes to approve today. You can change a link's mode at hub.corsair.dev/me.