is-real-biz MCP

An MCP server that allows AI agents to verify the legitimacy of a domain or business name. It returns a verdict (real, fake, scam, etc.), a trust score, and supporting signals like WHOIS data, SSL validity, and contact information presence. It supports two payment methods: x402 on-chain USDC for zero-signup autonomous calls, or prepaid credits via a Bearer API key.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Community listingStreamable HTTPNo sign-inEndpoint checked 2026-11-06Published by Smart-link-t

You need:50 free checks per new API key — no credit card required

MCP endpoint (Streamable HTTP)

https://is-real-biz.is-real-biz.workers.dev/mcp

Vendor documentation

What its tools do

1 tool, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

Not annotated (1)

check_business

1 of 1 have a description · 0 of 1 declare behavior hints · 1 of 1 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

Passed Endpoint answered the live check · Nov 6, 2026, 3:27 PM UTC
Availability 1 of 1 checks passed in 30 days

What you can do with it

Verify if a domain is a real business
Check whether a website is a scam
Run KYB on a list of vendors
Due diligence on a supplier

Source and maintenance

Community listingRegistry 1.0.0

mcp-registry: io.github.Smart-link-t/is-real-biz@1.0.0 Source repository Project website

Maintenance checked: Nov 6, 2026, 3:14 PM UTC

Protocol and capabilities

Server: is-real-biz 0.1.0
MCP protocol negotiated in check: 2024-11-05
Tools: 1 advertised
Resources: Not advertised
Resource templates: Not advertised
Prompts: Not advertised

Server-advertised capabilities

{
  "tools": {}
}

Tools

1 advertised

check_business

Advertised by the server during the last successful anonymous check.

Verify whether a domain belongs to a real business. Returns a verdict (real/likely_real/uncertain/likely_fake/fake), a 0-100 score, confidence, and underlying signals (WHOIS age, SSL, homepage LLM judgment, contact info, social presence). Costs 5 cents per fresh call; cached results are free for 24h.

check_business input schema

{
  "type": "object",
  "required": [
    "domain"
  ],
  "properties": {
    "domain": {
      "type": "string",
      "description": "The domain to check, e.g. \"stripe.com\" (without https:// or path)."
    }
  }
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (2 of 2 answered).

2026-11-06: 1 of 1 checks answered
2026-11-07: 1 of 1 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks: 1 of 1 (100%)
Average latency: 388 ms
95th percentile latency: 388 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

Nov 6, 2026, 3:27 PM UTC · probe · passed · 388 ms · metadata changed · 1 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http is-real-biz-mcp https://is-real-biz.is-real-biz.workers.dev/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add is-real-biz-mcp --url https://is-real-biz.is-real-biz.workers.dev/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable is-real-biz-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "is-real-biz-mcp": {
      "url": "https://is-real-biz.is-real-biz.workers.dev/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).

Cline configuration

{
  "mcpServers": {
    "is-real-biz-mcp": {
      "type": "streamableHttp",
      "url": "https://is-real-biz.is-real-biz.workers.dev/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start is-real-biz-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "is-real-biz-mcp": {
      "type": "http",
      "url": "https://is-real-biz.is-real-biz.workers.dev/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http is-real-biz-mcp https://is-real-biz.is-real-biz.workers.dev/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.

Claude Desktop configuration

https://is-real-biz.is-real-biz.workers.dev/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "is-real-biz-mcp": {
      "serverUrl": "https://is-real-biz.is-real-biz.workers.dev/mcp"
    }
  }
}

Let your agent find its tools

Find servers like is-real-biz MCP from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.

Connect Koskamo Explore workflows

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