IP Blacklist Lookup API + Slack Integration

Why connect them

The IP Blacklist Lookup API in Slack.

Slack is where work happens for millions of teams. Integrating APIs with Slack enables intelligent notifications, automated alerts, and data-rich messages. Transform your channels into real-time dashboards and keep your team informed with contextual, actionable information.

What you can build

Workflows worth wiring.

Send instant alerts when a monitored website's SSL certificate is expiring

Post daily weather forecasts to team channels for field workers

Notify sales teams when a lead's email is validated as deliverable

Alert DevOps when DNS changes are detected on critical domains

Templates

Ready-made ideas.

New login or signup event Fetch IP blacklist lookup → if isIPBlacklisted is true, post ipAddress, threatLevel, and inbound.description to Slack

Blacklisted IP Alert in Slack

Alert a Slack channel when a user connects from a blacklisted IP with the threat level and blocklist details.

Scheduled periodic trigger Fetch IP blacklist lookup for mail server IPs → if inbound.found is true, alert Slack with ipAddress and threatLevel

Mail Server IP Monitoring in Slack

Monitor your mail server IPs and get Slack alerts if any appear on inbound blocklists.

Setup

Connect it in a few steps.

Set up with Zapier

1
Set the trigger. Create a Zap with Slack as the trigger app and "New message" as the event. Connect your account.
2
Add the API action. Add APIVerve as the action, select the IP Blacklist Lookup API, and map your trigger data to the request.
3
Send it back. Add a second Slack action for "Send message" and map the returned fields (like ipAddress) into it.
4
Test & turn on. Test the Zap with real data to confirm the mapping, then turn it on.

Set up with Make

1
Add the trigger. Create a scenario and add a Slack module set to "New message". Authenticate your account.
2
Call the API. Add an HTTP module pointing at api.apiverve.com/v1/ipblacklistlookup with your x-api-key header. Pass the trigger's data as the input.
3
Parse & map. Add a JSON module to read the response, then a Slack module for "Send message". Map fields like data.ipAddress into place.
4
Activate. Run once to confirm the mapping, then switch the scenario on and set its schedule.

Set up with n8n

1
Add the trigger node. Start a workflow with a Slack trigger node for "New message" and connect your credentials.
2
Add an HTTP Request node. Point it at api.apiverve.com/v1/ipblacklistlookup using Header Auth (x-api-key). Feed in the trigger data.
3
Map with expressions. Add a Slack node for "Send message" and reference the response with expressions such as {{ $json.data.ipAddress }}.
4
Execute & activate. Execute manually to verify, then activate the workflow for production.

The payload

What Slack receives.

ipAddress"185.220.101.1"

isIPBlacklistedtrue

inboundfound, description

outbound—

threatLevel"high"

ipDetailsip, country, region, timezone, city, coordinates, countryName, regionName, postalCode, continent, continentName, accuracyRadius

IP Blacklist Lookup API + Slack