Event callback API for developers
Schedule webhooks with precision, ease, and at scale
500 free requests per month · No credit card required
Custom methods and payloads
Customize the API call back to your server with an HTTP method of your choice. Add a JSON payload to seal the deal.
High precision
Not only is our scheduler incredibly accurate, we preemptively resolve DNS and establish a TCP connection to your endpoint to ensure the payload arrives on time.
On-demand throughput
Send a handful messages each month or millions per day, we're built to handle some of the most intense data streams imaginable.
DST-resistantComing soon
Using IXDTF timestamps you'll never worry about if or when daylight savings time will affect delivery.
Invite your teamComing soon
Bring your colleagues and delegate permissions to manage billing or API keys
Track API key usageComing soon
Create as many API keys as you want to track usage. Each job stores the API key used to create it.
Typescript SDK
With our fully typed SDK getting started is a matter of minutes.
Usage-based pricing
With Lingering I/O you pay only for what you use. There are no monthly fees and you can cancel at any time. If you'd like a custom plan please reach out to us.
Premium
For larger projects and organisations that need to scale
- Unlimited jobs
- 500 free requests per month
- Invite team members