Runs on your machine from its package; the steps are below.
What it does
- Reads
- Writes
- High impact
At most: moves money, runs code or commands, deletes data, or sends messages for you.
What it costs
FreeOdel charges nothing per call. The publisher may charge for its own service.
Runs locally over stdio
This server isn't hosted — your MCP client launches it from a package registry. Use one of the commands below, or drop the config into your client (e.g. Claude Desktop).
Run
npx -y @rog0x/mcp-webhook-tools
MCP client config
{
"mcpServers": {
"webhook": {
"command": "npx",
"args": [
"-y",
"@rog0x/mcp-webhook-tools"
]
}
}
}mcp-webhook-tools
Webhook management and testing tools for AI agents, built on the Model Context Protocol.
Tools
webhook_send
Send a webhook payload to any URL with custom headers, body, and content-type. Supports automatic retry with exponential backoff and jitter. Returns detailed attempt records including status codes, timing, and errors.
webhook_validate
Validate webhook signatures using HMAC-SHA256 or HMAC-SHA1. Includes built-in patterns for:
- Stripe —
t=TIMESTAMP,v1=SIGNATUREformat with timestamp tolerance - GitHub —
sha256=SIGNATUREorsha1=SIGNATUREformat - Slack —
v0=SIGNATUREwithv0:timestamp:bodysigning scheme
Uses timing-safe comparison to prevent timing attacks.
webhook_generate_payload
Generate realistic webhook payloads for testing. Supported events:
| Service | Events |
|---|---|
| Stripe | payment_intent.succeeded |
| GitHub | push, pull_request |
| Slack | message |
Each payload includes randomized IDs, current timestamps, and suggested headers. Use the overrides parameter to customize specific fields.
webhook_debug
Analyze a webhook request end-to-end:
- Parse and categorize headers (content-type, signature, timestamp, delivery ID, custom)
- Validate the request body (size, JSON validity, encoding)
- Auto-detect the provider (Stripe, GitHub, Slack)
- Verify the signature if a secret is provided
- Check timestamp freshness (default 300s threshold)
- Report all issues found
webhook_retry_schedule
Calculate a retry schedule with exponential backoff. Shows each attempt's delay, cumulative elapsed time, and scheduled ISO timestamp. Configurable base delay, max delay cap, multiplier, and jitter.
Setup
npm install
npm run build
MCP Configuration
Add to your MCP client config:
{
"mcpServers": {
"webhook-tools": {
"command": "node",
"args": ["path/to/mcp-webhook-tools/dist/index.js"]
}
}
}
License
MIT
