Introduction

SpidyLabs is a webhook inspector — a tool that captures HTTP requests sent to a unique URL and displays them in real time in your browser.

Who Is This For?

• Backend developers building webhook integrations with services like Stripe, GitHub, Shopify, or Twilio.
• Frontend developers testing API calls and verifying request payloads.
• QA engineers validating that systems send the correct data.
• Anyone who needs to quickly inspect HTTP traffic without setting up infrastructure.

Core Concepts

Bins

A bin is a unique endpoint that captures HTTP requests. Each bin has a URL like:

https://spidylabs.com/hook/a8x3kf2m

Any HTTP request sent to this URL is captured and displayed in the inspector.

There are two types of bins:

• Temporary bins — Created without signing in. Available as long as you keep the browser tab open.
• Persistent bins — Created when signed in. Saved to your account and accessible from any device.

Requests

Each HTTP request captured by a bin becomes a request record. SpidyLabs stores:

• HTTP method (GET, POST, PUT, DELETE, PATCH, HEAD, OPTIONS)
• Headers
• Body (with syntax highlighting for JSON, XML, and form data)
• Query parameters
• Source IP address
• Timestamp
• Content type and size

Real-Time Streaming

SpidyLabs uses Server-Sent Events (SSE) to push new requests to your browser the instant they arrive. No polling, no refreshing — just a live feed.

Free vs Pro

Ready to get started? Head to the Quickstart.