Klazify MCP server
12 operations0 webhooks
Website classification from any URL or email - IAB and Klazify categories, company data, tech stack, logos, traffic, domain age and similar domains.
Try Klazify with your agent
Connect Klazify, 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 Klazify on my account, then run one read-only example and show me the result.
Klazify tools and triggers
Tools are what your agent can do in Klazify through Corsair's MCP server. Triggers are the Klazify events a routine can start from.
Categories
- IabRead-only
Classify a URL into IAB v1 and v3 taxonomy categories
categories.iab
- List V1Read-only
List the 620 categories in the Klazify v1 taxonomy
categories.listV1
- List V2Read-only
List the 1,091 categories in the Klazify v2 taxonomy
categories.listV2
Categorize
- AllRead-only
Classify a URL or email and return categories, logo, social profiles, company data and tech stack in one answer
categorize.all
- RealtimeRead-only
Classify a URL or email into Klazify categories, re-crawled
categorize.realtime
Company
- GetRead-only
Read company name, location, headcount, revenue, funding and tags for a URL
company.get
Discovery
- SearchRead-only
Search Klazify's domain database by rank, category, country, technology and company size
discovery.search
Domain
- GetRead-only
Read domain registration and expiration dates
domain.get
Logo
- GetRead-only
Fetch a website's logo URL from Klazify's CDN
logo.get
Similar Domains
- GetRead-only
List up to 10 domains in the same category
similarDomains.get
Tech
- GetRead-only
Detect the technologies a website uses
tech.get
Traffic
- GetRead-only
Read traffic rank, monthly visits, engagement and traffic sources for a domain
traffic.get
Connect Klazify to Claude, ChatGPT or Cursor
- 1
Connect Klazify in Corsair
Add your Klazify API key once in Corsair. Corsair stores the credential encrypted and makes the Klazify API calls for your agent, so it never goes into a prompt or a config file. Connect Klazify
If your link lets the agent add apps, you can skip this: it gives you a sign-in link the first time it needs Klazify. On a ChatGPT personal plan, connect Klazify here first.
- 2
Add Corsair's MCP server to your agent
Every client uses the same address:
https://mcp.corsair.dev/mcpOpen Customize → Connectors → Add custom connector, paste the address, then select Connect.Add a custom MCP server with the address and choose OAuth. Personal plans get read tools only.Add to CursorOr add this to~/.cursor/mcp.json. Cursor opens Corsair to sign in the first time it connects.{ "mcpServers": { "corsair": { "url": "https://mcp.corsair.dev/mcp" } } }Run this, then run/mcpin Claude Code to sign in.claude mcp add --transport http corsair https://mcp.corsair.dev/mcpCodex, 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
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 Klazify operation only reads data, so it runs right away in every mode.
FAQ
Install corsair and @corsair-dev/klazify, add the Klazify plugin, and connect with an API key. Then call methods like corsair.klazify.api.categories.iab() from your app. Corsair keeps each tenant isolated.
Yes. Klazify requires an API key from your Klazify 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 Klazify, GitHub, Notion, Stripe, and the rest. Trigger Klazify from a webhook, push updates to Slack, or chain actions across plugins. Same tenant context across integrations, plain TypeScript.
Teams use Corsair for website classification from any URL or email - IAB and Klazify categories, company data, tech stack, logos, traffic, domain age and similar domains. Common builds include sync jobs, admin tooling, and agents that call Klazify 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 Klazify 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/klazify in the open repo. When Klazify 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 Klazify data or hold individual access credentials. Credentials stay in your database. API calls run on your instance. We do not store Klazify 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 Klazify on a link in Strict mode and every write waits for your approval, while destructive actions are refused. Every Klazify operation only reads data, so there are no changes to approve today. You can change a link's mode at hub.corsair.dev/me.