All use cases

Currency Exchange

Live rate converter.

Prototypes
Prompt
Create a currency converter that fetches live rates. Showing a historical chart for the selected pair using a canvas charting library.
Use this

Why this exists

Currency converters are everywhere, and almost all of them have an ulterior motive: an ad wrapped around the rate, an affiliate link to a transfer service, a "rate" quietly padded with a spread. You wanted one honest number and a sense of where it has been trending. This blueprint builds exactly that, a converter that pulls live rates and charts the recent history, with nobody selling you a money-transfer product on the side.

What the agent builds

A currency converter that fetches live exchange rates and renders a historical chart for the selected pair, drawn on a canvas so the line stays crisp and quick without a heavy charting dependency. Pick two currencies, see the current conversion, and watch the trend line show you whether the rate has been climbing or sliding.

You watch it happen in the task workspace: the agent scaffolds the project, wires the rate fetching and the canvas chart, starts the dev server, and confirms the data renders before handing you a live preview. The code lands on a branch in your repository with a pull request ready.

Make it yours

The first version is a base you steer with plain follow-up messages:

  • "Let me pin a few favorite pairs to the top."
  • "Add a toggle for 30-day, 90-day, and one-year history."
  • "Cache the last rates so it still shows something offline."
  • "Add a small table of the strongest and weakest currencies today."

Each follow-up wakes the same repository and the agent continues on its own code.

FAQ

Do I need to know how to code? No. You describe the converter; the agent writes it, verifies the chart renders, and ships the code to your repository.

Where do the rates come from? A live exchange-rate API you connect. The agent wires the fetch; you control the source and any key.

Is the historical chart a heavy library? No. It is drawn on a plain canvas, so the page stays light and fast.

Currency Exchange | OutcomeDev Use Cases