Look up phone numbers shared in Slack
Get Callerapi details for a number your team posts in a Slack channel, ready to review in the automation run report.
Trigger
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Action
Get Phone Number Information
Tool to retrieve detailed information about a specific phone number, including reputation, business and carrier details, and ftc complaints. use when the number is in e.164 format and set hlr=true to include hlr data (adds 1-3 seconds to response).
Why this helps
A number buried in channel discussion can be easy to lose, and looking it up later adds another task to your queue.
- Retrieve Callerapi details when a channel message contains a phone number in E.164 format.
- Keep the lookup tied to the message that prompted it.
- Reduce the need to switch tools just to start a phone-number check.
Setup
Build it in a few focused steps.
- 1Connect Slack and Callerapi to Notis once through the portal.
- 2In Automations, create a new automation and describe the lookup in one plain-language prompt.
- 3Pick Slack Channel Message Received as the trigger.
- 4Choose where Notis should report runs, then test with a channel message containing a real E.164 number.
Questions about this workflow
Which phone number format should I use?
Use E.164 format, such as +14155550123, so Callerapi can look up the number.
Does this check automatically block or label a caller?
No. It retrieves Callerapi information for review; the listed action does not change Slack or make a blocking decision.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Callerapi. A trigger fires from one place; an action lands in another.
Slack triggers
Callerapi actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Get Phone Number Information
Tool to retrieve detailed information about a specific phone number, including reputation, business and carrier details, and ftc complaints. use when the number is in e.164 format and set hlr=true to include hlr data (adds 1-3 seconds to response).
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Get User Information
Tool to retrieve information about the authenticated user, including email and credit usage details. use after authentication to fetch credits spent, monthly allocation, and credits left.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Connect any two apps with Notis in the middle.
Slack and Callerapi, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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