Hookdeck Inspect

About Hookdeck Inspect

Hookdeck Inspect is a free webhook testing and debugging tool built by the team behind Hookdeck's Event Gateway and Outpost products. It generates a live URL that can receive incoming webhook requests and display their payloads in a real-time feed. The tool also includes a library of mock webhooks from over 500 providers, including Stripe, Shopify, and GitHub.

Review

Hookdeck Inspect enters the request bin category with a specific focus on agent-based workflows. Unlike older request inspection tools that assume a human is watching the screen, Inspect lets you hand its URL directly to an AI agent like Claude or Codex - the agent can detect when a request arrives and use the payload to build a handler. The tool requires no account or setup to start using.

Key Features

• A live URL that receives webhook requests and shows payloads as they arrive, accessible to both humans and AI agents without additional server configuration.
• Mock webhooks from over 500 providers, allowing you to test against realistic payload shapes without waiting for a real event to fire from the source service.
• Provider verification handling - the tool responds to challenges like Meta's hub.challenge so you can point a real test application at the Inspect URL.
• A path to production via Hookdeck's CLI, which forwards requests to localhost, and the option to graduate the same flow to Event Gateway for queues, retries, and transforms.
• Agent-native design that doesn't require skills, MCP setups, or server provisioning - paste the URL into your agent and it reports when requests land.

Pricing and Value

Hookdeck Inspect is free to use with no account required. The production path through the CLI and Event Gateway ties into Hookdeck's broader platform, which has separate pricing, but Inspect itself has no cost attached.

Pros

• No account or setup needed to get a working webhook URL immediately.
• Mock payloads for 500+ providers reduce the friction of triggering specific test events from third-party services.
• An agent can monitor the request feed, which removes the need to manually refresh a page while waiting for webhook deliveries.
• Verification challenge responses are handled automatically for platforms like Meta.
• The transition from testing to a production pipeline is built into the same ecosystem rather than requiring a separate tool.

Cons

• Mock webhooks currently provide payload shapes only, not valid signatures - if you need to test signature verification in your handler, you'll need real events from the provider.
• The agent-oriented workflow depends on your agent being able to interpret the request feed; teams not using AI agents in their development loop may find fewer advantages over traditional request bins.
• WhatsApp mocks are available now, but Messenger and Instagram events are not yet covered, though the team has indicated they plan to add them.

Hookdeck Inspect fits teams that already use AI agents in their development process and want a webhook testing endpoint their agent can query directly. It's also useful for developers who frequently need to check payload structures across many providers and want to avoid the back-and-forth of triggering real events. Teams that don't work with AI coding agents and need provider signature verification in testing will likely find the tool less suited to their workflow.