Quick start
From signup to your first CaptureKit API response in a few minutes.
This walkthrough takes you from an empty account to a successful API call. You will create a key, send a request, and confirm it in your logs.
Create an account
Sign up at https://app.capturekit.dev/register and verify your email.
Create an API key
Open API Keys in the sidebar and click New API Key. Give it a Name such as local-dev and pick the development category. The secret is shown once — copy it immediately.
Store the key
Save the secret in an environment variable rather than in your source code:
export API_KEY="your-secret-key"Call the API
Send your first request with the key in the x-api-key header. The usage endpoint is free, so it is a safe way to verify that authentication works:
curl "https://api.capturekit.dev/v1/usage" \
-H "x-api-key: $API_KEY"Confirm in the dashboard
Open API Logs in the sidebar. Your call appears within a few seconds with its status code, duration, and credit cost.
Prefer clicking first?
Open any endpoint in the Library, fill in the parameters in the Playground, and run it. That call uses the same credits and appears in the same logs — language tabs inside the playground (curl, Python, Node…) give you the equivalent snippet.
Never call the API directly from a browser or mobile app. Anyone can read the key from the network tab. Always proxy requests through your own backend.