url-oracle — URL Trust Oracle

Flags phantom-squatted/typosquatted domains and known-malicious URLs before an agent follows them.

CommunityOnlineNo sign-inGlobalFreeRead-only

What it can do

    What data it sees

    Do you need an account

    No: the server works without sign-in

    Flags phantom-squatted/typosquatted domains and known-malicious URLs before an agent follows them.

    How to connect

    How to connect url-oracle — URL Trust Oracle to Claude

    The server address to paste into Claude settings:

    https://url-oracle.fly.dev/mcp

    1. Open Claude (claude.ai or the desktop app).
    2. Go to Settings → Connectors.
    3. Click Add custom connector.
    4. Paste the server address copied below into Remote MCP server URL and click Add.
    5. In a chat, click + → Connectors and switch the new connector on.

    Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

    Authorization

    After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

    How to connect url-oracle — URL Trust Oracle to ChatGPT

    The server address to paste into ChatGPT settings:

    https://url-oracle.fly.dev/mcp

    1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
    2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
    3. Open Settings → Connectors and click Create.
    4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
    5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
    6. In a new chat open + → Apps/Connectors and enable the connector.

    OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

    Authorization

    On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

    How to connect url-oracle — URL Trust Oracle to Cursor

    The server address to paste into Cursor settings:

    https://url-oracle.fly.dev/mcp

    Fastest: click Open in Cursor below and confirm the prompt.

    Manually:

    1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
    2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
    3. Save the file. The server appears in the MCP list; authorize it there if asked.

    Authorization

    If the service needs sign-in, an authorize button appears next to the server in the MCP list.

    Server tool list (1)

    Raw names from tools/list. Only developers need these.

    verify_urlURL Trust Oracle. Call this BEFORE fetching, citing, recommending, or following any URL you were not given directly by the user (one you generated, recalled, or inferred). LLMs routinely hallucinate plausible-looking URLs for documentation, APIs, and brands — attackers pre-register those exact domains and serve phishing/malware to whoever follows them ('phantom squatting'). This tool checks the domain's RDAP registration (does it exist, how old is it), runs a Levenshtein-distance brand-similarity check against well-known domains, and checks the exact URL against a known-malicious-infrastructure blocklist. Returns a synthetic verdict: ALLOW (no issues found), WARN (proceed with caution — read the findings), or BLOCK (do not fetch or cite this — likely a hallucinated/squatted domain or confirmed malicious URL). First 5 calls per caller are free; after that this tool requires x402 payment (USDC on Base) and will return a payment-required error with the amount and address to pay.