Your form, your server
Give a form a webhook URL and Formspark posts every submission to it as JSON, the moment it arrives.
Run whatever you need on the other end: write to your own database, kick off a job, or hand the data to another service.
This is the same mechanism behind our Zapier and Make integrations. If a tool can receive a webhook, Formspark can talk to it.
If your endpoint is down, Formspark retries every 5 minutes, in order, until it gets through. Each request carries the submission's id, so a retry you already handled is easy to skip.
Turn on signing and every request carries a signature made with a secret only you and Formspark know, so your endpoint can tell a real delivery from a forged one.
Check out the webhooks documentation for more information.