Isipsafe Python MCP Server

isipsafe

Official Python client and command-line tool for isIPsafe, the free IP reputation and abuse reporting service.

• Check whether an IP address is malicious before you trust it
• Report attackers from your logs, one at a time or 10,000 at once
• Download the blocklist in a firewall-ready format (nftables, ipset, nginx, apache, MikroTik, STIX and more)

No dependencies outside the Python standard library. Python 3.9+.

pip install isipsafe

Get an API key

Lookups work without a key (400 per day per address). Reporting, bulk uploads and the blocklist need a free key from isipsafe.com/login. A key also raises the lookup limit to 10,000 per day.

export ISIPSAFE_API_KEY=sl_your_key_here

The client sends the key in an Authorization header, never in the URL, so it stays out of proxy and server logs.

Python

from isipsafe import Client

client = Client()  # reads ISIPSAFE_API_KEY, or pass Client("sl_...")

result = client.check("185.220.101.1")
print(result.abuse_confidence_score, result.total_reports, result.categories)

if result.is_malicious():  # score >= 75, has reports, not allowlisted
    block(result.ip_address)

client.report(
    "203.0.113.50",
    ["ssh", "brute-force"],
    comment="sshd: 212 failed logins in 10 minutes",
)

Report many addresses at once

result = client.bulk_report(
    [
        {"ip": "203.0.113.50", "categories": ["ssh", "brute-force"], "comment": "sshd"},
        {"ip": "198.51.100.4", "categories": "port-scan"},
    ]
)
print(result.saved_reports, result.invalid_reports)

Blocklist

ips = client.blocklist(confidence_minimum=90, except_countries=["GB"])
nft = client.blocklist_raw(format="nftables")

Everything else

Errors

Every error inherits from isipsafe.IsIPsafeError.

Lookups are retried automatically on network errors and 5xx responses. Reporting the same address twice within 15 minutes is not an error: report() returns a result with duplicate=True.

Command line

$ isipsafe check 185.220.101.1
185.220.101.1  not flagged
  score       56/100 (Medium)
  reports     24 from 5 reporters
  categories  port-scan, hacking, vuln-scan, web-app-attack, c2
  network     DE AS60729 Stiftung Erneuerbare Freiheit
  flags       Tor exit
  details     https://isipsafe.com/ip/185.220.101.1

$ isipsafe report 203.0.113.50 -c ssh,brute-force -m "sshd: 212 failed logins"
$ isipsafe bulk-report reports.csv
$ isipsafe blocklist --format nftables --confidence-minimum 90 -o blocklist.nft
$ isipsafe check-block 185.220.101.0/24
$ isipsafe categories

Add --json to check, report, reports, check-block and categories for machine-readable output.

Use --fail-if-malicious in shell scripts. The command exits with status 1 when the address is malicious:

if ! isipsafe check "$IP" --fail-if-malicious --threshold 80 > /dev/null; then
    echo "blocking $IP"
fi

Exit codes: 0 success, 1 malicious (only with --fail-if-malicious), 2 error.

Categories

Use the slug or the numeric ID. Common ones: ssh, brute-force, port-scan, web-app-attack, sql-injection, vuln-scan, bad-bot, ddos, email-spam, phishing. Run isipsafe categories for the full list, or see isipsafe.com/categories.

Links

• Official Usage Page: isipsafe.com/integrations/python
• Website: isipsafe.com
• API reference: isipsafe.com/api
• Integrations: isipsafe.com/integrations

Licence

The code in this repository is MIT licensed. Data returned by the isIPsafe API is covered by the isIPsafe EULA.