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Retrieve a historical rate from Slack

When a conversation points to a past transaction date, get the historical rate without searching manually.

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 Historical Exchange Rates

Tool to retrieve historical exchange rate data for past dates going back to 1996. Use when you need to access exchange rates for a specific historical date with a base currency.

Why this helps

Reconstructing an old quote or expense often means hunting for the date and rate across separate tools.

  • Check a rate for a specified past date.
  • Support retrospective price and expense discussions.
  • Keep the requested date and currency pair together.

Setup

Build it in a few focused steps.

  • 1Connect Slack and CurrencyScoop to Notis once through the portal.
  • 2Create an automation in the portal, or ask Notis in plain language to retrieve a historical rate when a channel message specifies a date and currency pair.
  • 3Select Channel Message Received as the trigger.
  • 4Choose a channel for run reports and test with a real message that includes a past date and two currencies.

Questions about this workflow

Does the message need a date?

Yes. The prompt should require a specific date and base currency so the historical lookup has a clear reference.

How far back can rates be retrieved?

The CurrencyScoop historical rates action supports past dates going back to 1996.

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

Notis builds workflows that link Slack to CurrencyScoop. A trigger fires from one place; an action lands in another.

Slack triggers

CurrencyScoop actions

Recurring trigger

Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.

TriggerScheduled

Convert Currency

Tool to perform a single currency conversion from one currency to another for a specified amount. Use when you need to convert a specific amount between two currencies using mid-market rates.

ActionInstant

Webhook trigger

Notis starts this workflow when an external tool or custom backend sends an HTTP request.

TriggerInstant

Get Currencies

Tool to retrieve all supported currencies including their names and countries. Use when you need information about available currencies, either fiat or crypto.

ActionInstant

New Channel Created Trigger

Triggered when a new channel is created in Slack.

TriggerInstant

Get Historical Exchange Rates

Tool to retrieve historical exchange rate data for past dates going back to 1996. Use when you need to access exchange rates for a specific historical date with a base currency.

ActionInstant

Channel Message Received

Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.

TriggerInstant

Get Latest Exchange Rates

Tool to get real-time exchange rates for all supported currencies with a specified base currency. Use when you need current exchange rates for currency conversions or financial calculations.

ActionInstant

Direct Message Received

Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.

TriggerInstant

Get Timeseries Exchange Rates

Tool to retrieve historical exchange rates for a given time period between start and end dates. Use when you need exchange rates for multiple dates in a date range for trend analysis or historical comparisons.

ActionInstant

Message Reaction Added

Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.

TriggerInstant

Message Reaction Removed

Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.

TriggerInstant

Reaction Added Trigger

DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.

TriggerInstant

Connect any two apps with Notis in the middle.

Slack and CurrencyScoop, or any other combination from 1,000+ integrations.

When this happens · Trigger

Do this · Action

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No card. Works with personal or business CurrencyScoop.