Webhook Tester for OpenClaw and Automation Workflows

Send, inspect, and debug webhook requests. Useful for verifying signatures, payload structure, retries, and downstream handling.

Quick orientation

When to use this tool

Use the webhook tester when an automation feels flaky and you need to see exactly what is being sent, received, or rejected.

1
Before connecting a third-party service to your endpoint
2
When signatures fail or the receiving app rejects a request
3
When you need reproducible test payloads for debugging

Payload (JSON)

Webhook Secret (for HMAC-SHA256)

Signature Header Name

Webhook response will appear here

What to look for when a webhook breaks

Webhook bugs are often boring in the worst way: wrong header, wrong content type, wrong signature base string, or a payload shape that drifted. A focused tester makes those issues visible faster.

Replay realistic event payloads
Verify signature logic before blaming the endpoint
See request details without digging through multiple logs first

Common mistakes

Why webhook debugging feels worse than it should

Webhook failures often look random because the visible error shows up long after the real mistake. These are the places worth checking first.

A missing or mismatched signature header can make a healthy endpoint look broken.

Retries usually mean the receiver did not return a success code fast enough, not necessarily that the payload was wrong.

Payload examples should match real events as closely as possible, especially nested objects and timestamps.

If delivery works locally but not in production, compare proxies, load balancers, and body-parsing middleware next.

Related tools

Keep the decision moving

Most tool decisions connect to a second task right away. These are the next pages worth opening if you want fewer surprises later.

🔌

API Tester

Probe OpenClaw and related APIs quickly so you can debug payloads, auth, and response shape in one place.

✅

JSON Validator

Catch malformed JSON and schema mismatches before they break an automation, integration, or deploy.

🔄

Base64 Tool

Encode, decode, and convert payload fragments between formats commonly used in APIs and webhook workflows.

Learn next

Turn the estimate into a better setup

If the tool solved the immediate question, this is the next place to go for the broader workflow, tradeoffs, and implementation detail.

Read the OpenClaw webhooks guide

FAQ

Can this help when only some webhook events fail?

Yes. Comparing a working payload with a failing one is often the quickest way to spot the difference that matters.

Why test signatures separately from delivery?

Because signature errors can look like generic delivery failures. Separating them saves time and avoids chasing the wrong layer.