Network

Webhook Debugger & Relay

Generate a unique webhook capture URL, inspect incoming requests, validate signatures, and replay payloads to a target endpoint

html· HTML resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'https://api.elysiatools.com/en/api/tools/webhook-debugger-relay' \
  -H 'Content-Type: application/json' \
  -d '{"relayTargetUrl":"https://api.example.com/webhooks/stripe","signatureSecret":"whsec_test_123","signatureHeader":"stripe-signature","autoReplay":false,"methodFilter":"POST","bodyMustContain":"\"type\":\"invoice.paid\"","storedRequestLimit":50}'

API reference

Send a POST request with your inputs as JSON. File parameters require a separate upload first.

Endpoint

HTTP

POST https://api.elysiatools.com/en/api/tools/webhook-debugger-relay

Parameters

Name	Type	Required	Description
relayTargetUrl	text	No	—
signatureSecret	text	No	—
signatureHeader	text	No	—
autoReplay	checkbox	No	—
methodFilter	select	No	—
bodyMustContain

MCP integration

Add this tool to your Model Context Protocol server so AI agents can list and call it.

Server configuration

Add this block to your MCP client configuration:

mcp.json

{
  "mcpServers": {
    "elysiatools-webhook-debugger-relay": {
      "name": "webhook-debugger-relay",
      "description": "Generate a unique webhook capture URL, inspect incoming requests, validate signatures, and replay payloads to a target endpoint",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=webhook-debugger-relay",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

List available tools

After connecting to the SSE endpoint, list the exposed tools:

tools/list

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/list"
}

Call this tool

Invoke the tool by its id, passing arguments built from its parameters:

tools/call

{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "tools/call",
  "params": {
    "name": "webhook-debugger-relay",
    "arguments": {
  "relayTargetUrl": "https://api.example.com/webhooks/stripe",
  "signatureSecret": "whsec_test_123",
  "signatureHeader": "stripe-signature",
  "autoReplay": false,
  "methodFilter": "POST",
  "bodyMustContain": "\"type\":\"invoice.paid\"",
  "storedRequestLimit": 50
}
  }
}

Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).

Questions or issues? Contact [email protected]

Browse tools Open tool