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.

Slack Message Buttons - Making messages more interactive with buttons

Hookdeck - Hookdeck makes it simple to build and deploy reliable, testable, and debuggable applications that rely on webhooks.

Tab Butler - A tab manager at your service.

Beau - No-code platform to build, automate customers' workflows, step-by-step

Steward - Steward provides on-demand sales research and operations support.