Webhook.site - Instantly generate a free, unique URL and email address to test, inspect, and automate (with a visual workflow editor and scripts) incoming HTTP requests and emails.
Salestools - Monitor your Linkedin newsfeed for keywords to obtain leads.
Hookdeck - Hookdeck makes it simple to build and deploy reliable, testable, and debuggable applications that rely on webhooks.
Cato - Instant Spotlight-like search for your web browser.
Webhooks by Zapier - Move Your Data Instantly With Webhooks
PredictLeads - PredictLeads helps uncover sales triggers like B2B inside sales & personalized marketing, sales triggers, sales enablement.