MCP server for MaxMind minFraud — score transactions for fraud risk from your AI assistant. Hosted by usefulapi — connect from Claude, Cursor, or any MCP client.
Team and Enterprise: an Owner adds the connector for the organization first.
Run this command, then run /mcp in Claude Code to log in:
Add to Cursor or add this to ~/.cursor/mcp.json:
{
"mcpServers": {
"maxmind-minfraud": {
"url": "https://maxmind-minfraud.usefulapi.io/mcp"
}
}
}Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"maxmind-minfraud": {
"type": "http",
"url": "https://maxmind-minfraud.usefulapi.io/mcp"
}
}
}Other MCP clients (Windsurf, Cline, Zed and more): add the URL as a remote MCP server (Streamable HTTP). The client then opens the login page in your browser. Do not add an Authorization header: see Before you connect.
The login page asks for your MaxMind account ID and MaxMind license key.
Find both in your MaxMind account → Manage License Keys (the license key must be minFraud-enabled). Your credentials are used only to call the API on your behalf and to derive a private account id; they are never shown to anyone.
Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your MaxMind account ID and MaxMind license key. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
Turn on the MaxMind minFraud connector, then ask in plain words. The AI picks the tools.
| Tool | Type | What it does |
|---|---|---|
minfraud_score | read | minFraud risk score Score a transaction for fraud risk. Returns the overall risk_score (0.01–99), IP risk, disposition, and remaining query funds — the lightest, cheapest assessment. Send at least device.ip_address (plus email/billing/order for a better score). API: POST /minfraud/v2.0/score. |
minfraud_insights | read | minFraud Insights (detailed risk) Score a transaction AND get detailed risk insights: IP geolocation, email/address/device attributes, and per-component risk on top of the risk_score. Same request body as minfraud_score. API: POST /minfraud/v2.0/insights. |
minfraud_factors | read | minFraud Factors (risk reasons + subscores) The most detailed assessment: everything in Insights PLUS risk_score_reasons and per-factor subscores explaining WHY the score is what it is. Same request body as minfraud_score. API: POST /minfraud/v2.0/factors. |
minfraud_report_transaction | write | Report a transaction outcome WRITE — submits fraud feedback to MaxMind. Report the real-world outcome of a transaction (e.g. it was a chargeback or confirmed fraud) so minFraud can improve future scoring. This mutates MaxMind's model of your traffic; it is not a read. Requires a `tag` and at least one identifier (ip_address, maxmind_id, minfraud_id, or transaction_id). API: POST /minfraud/v2.0/transactions/report (returns HTTP 204). |
maxmind_minfraud_usage_status | Usage status (free-tier meter) Report the caller's current free-tier usage this month: calls used, monthly limit, remaining, and whether the cap is reached. Read-only; does not count against the meter. | |
maxmind_minfraud_request_feature | Request a missing feature Tell usefulapi that the user needs something the MaxMind minFraud tools cannot do yet (a missing tool, field or filter). Call it only when the user asks for something none of the tools can do, and tell the user that you send the request. Do not call it for errors or for normal requests. Do not include personal data, credentials or customer records. Stored with the product name and the client type (for example Claude or Cursor), without the user's account. At most 5 requests per day. Does not count against the meter. | |
maxmind_minfraud_upgrade | Upgrade to Pro (unlimited) Subscribe to the Pro plan for UNLIMITED MaxMind minFraud tool calls (the free tier caps monthly usage). Choose monthly ($9/month) or yearly ($90/year — 2 months free) billing. Returns a Stripe Checkout link to open in your browser; after payment your account upgrades automatically. Does not count against the meter. | |
maxmind_minfraud_cancel_subscription | Cancel the Pro subscription Cancel the caller's MaxMind minFraud Pro subscription at the end of the paid period (no refund for the current period; unlimited calls continue until then, then the free tier applies). Requires confirm: true. Run maxmind_minfraud_upgrade later to undo the cancel before the period ends. Does not count against the meter. |
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 100 tool calls / month |
| Pro | $9/mo · $90/yr | Unlimited |
Pro covers this MaxMind minFraud server only. Subscribe with maxmind_minfraud_upgrade (it returns a Stripe Checkout link). Cancel any time with maxmind_minfraud_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running maxmind_minfraud_upgrade before then undoes the cancel. Or write to [email protected].
No. usefulapi is an independent service. It is not affiliated with or endorsed by MaxMind minFraud. The server calls the MaxMind minFraud API with your own MaxMind minFraud access, so it sees only the data that your account can see.
The login page asks for your MaxMind account ID and MaxMind license key. See Before you connect for where to find them.
No. Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your MaxMind account ID and MaxMind license key. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
The login stores them encrypted in the authorization grant of your connection. The server uses them to call the MaxMind minFraud API for you and to derive a private account id for usage metering. usefulapi does not show them on any page or in any reply. To stop all access, remove the connector and change or delete these credentials in MaxMind minFraud.
Yes, if you approve it. 1 of the 4 MaxMind minFraud tools can create or change data. The other 3 are marked read-only. Most MCP clients ask you to approve a tool call before it runs.
The Free plan gives 100 tool calls / month. Pro costs $9/mo or $90/yr, with unlimited tool calls, for this MaxMind minFraud server only. Run maxmind_minfraud_usage_status to see how many calls you used.
Ask the AI to run maxmind_minfraud_upgrade: it returns a Stripe Checkout link. To cancel, run maxmind_minfraud_cancel_subscription. Pro continues to the end of the paid period.
Tell the AI what you wanted to do. It can send the request with maxmind_minfraud_request_feature. We store the text with the server name, the type of AI client and the tool you tried, not with your account, and read every request when we plan new tools. You can send up to 5 requests per day.
Any client that supports remote MCP servers (Streamable HTTP) with OAuth login: Claude (web and desktop), Claude Code, Cursor, VS Code, Windsurf and others.
This is a Model Context Protocol endpoint — meant to be connected from an AI client, not opened in a browser. An invalid_token response at the URL is the auth gate working as designed; clients authenticate automatically.