Live webhook inspection

Test webhooks.
Debug AI agents.
Ship with confidence.

A live sandbox for inspecting webhook payloads and validating your AI agent's responses — catch failures before they hit production.

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hookagent.dev/inspect
POST /webhooks/stripe 200 OK
{
"type": "payment_intent.succeeded",
"amount": 4999,
"currency": "usd"
}
webhook_tester agent processing...
Agent Response
"Payment of $49.99 confirmed. Provisioning Pro plan for user #8821 and sending receipt email..."
142ms agent latency

Get from zero to tested in minutes

No config files. No mocking frameworks. Just point, fire, and inspect.

01

Connect your endpoint

Point your service's webhook URL at your HookAgent inspection URL. Works with Stripe, GitHub, Shopify, or any HTTP webhook.

02

Trigger real events

Fire live events from your service or replay saved payloads. Every request is captured, timestamped, and diff-able.

03

Watch your agent respond

Your AI agent processes the event in real time. Inspect its reasoning, outputs, and side-effects — all in one view.

Real-time inspection

See every payload. Every header. Every millisecond.

Incoming webhooks are decoded instantly — JSON syntax-highlighted, headers expanded, query params parsed. Compare event-by-event with a full diff view to catch schema changes before they break your agent.

  • JSON body + header inspection
  • Schema diff across event runs
  • Searchable event history
  • Raw vs. parsed toggle
Events — last 24h Live
POST /webhooks/stripe 200
POST /webhooks/github 200
POST /webhooks/stripe 422
webhook_tester agent Active
Incoming: Stripe invoice.payment_failed
Identifying customer from customer_id
Checking retry attempt count
Queuing dunning email #2 of 3
Test passed. Agent triggered correct dunning sequence for attempt 2. No unexpected side effects.
Agent validation

Know your agent does the right thing — every time.

Connect your AI agent to HookAgent and watch its decision-making trace in real time. Replay past events against updated agents to verify behaviour hasn't regressed. Define expected outcomes and get instant pass/fail feedback.

  • Step-by-step agent trace
  • Replay events against new agent versions
  • Expected output assertions
  • Latency and token-cost tracking

Ready to stop guessing and start testing?

Create a free account and get your first webhook inspection URL in under 60 seconds.

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