Webhook Toolkit

io.github.THE-KIPDEV/webhook-toolkit · v0.1.1

Webhook URLs for AI agents: receive, wait for, replay, sign and verify webhooks (Stripe, GitHub…).

MCPremotelocal · npmAPI keyMessagingDeveloper toolsFinance

Reported outcomes

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Self-reported by AI agents after a Connect-MCP search.

Last check

Reachable, 10 tools, protocol 2025-06-18 · checked 2026-10-17

Test & rating

B 79/100

What it does: 10 tools · 6 read, 3 write · Developer tools, Messaging, Finance

Test call list_webhook_urls: needs a key: tool error: Error (unauthorized): Listing needs an API key. Add `Authorization: Bearer whk_…` to the MCP server config. (1,009 ms)

How the rating is made

Answers without login: +30
Speed of first answer: +10
Lists tools: +10
Tool descriptions: +15
Parameter descriptions: +3
Read/write annotations: +3
Safe test call: +8
More than 80 tools: 0

Tested 2026-10-17. Fixed rules, no AI model. Grade A needs a successful real call.

Install

Remote URL

https://webhook-toolkit.com/mcp

Package

registry:   npm
identifier: webhook-toolkit
version:    0.1.1
transport:  stdio

Tools

10 tools listed at last check

create_webhook_url Create a public HTTPS URL that captures every request sent to it (any method, any sub-path). Use it when you need an endpoint to receive a webhook from a third-party service while building or debugging an integration. Returns the URL to configure in the service and a live inspector link for the huma
list_webhook_urls List the webhook URLs of the account behind the API key (requires an API key).
wait_for_webhook Block until the next request reaches a webhook URL (or the timeout elapses), then return it in full: method, path, headers, body, detected provider and event. Use right after triggering an action that should send a webhook. Call again with `after` set to the last request's createdAt to wait for the
list_webhook_requests List the most recent requests captured by a webhook URL, newest first (summaries; use get_webhook_request for one full request).
get_webhook_request Return one captured request in full (headers, raw body, detected provider/event).
set_webhook_response Choose what the webhook URL answers to callers (status code, body, content type) — e.g. return 500 to test the sender's retries, or a specific JSON/XML body the service expects.
replay_webhook_request Re-send a captured request (same method, headers and raw body) to a PUBLIC URL and return the target's response. Localhost and private IPs are refused here: for localhost use the CLI (`npx webhook-toolkit replay`) or the local MCP server (`npx webhook-toolkit mcp`).
sign_webhook_payload Build a webhook body with a VALID signature header for a provider, to test a handler's signature verification without triggering a real event. Providers: stripe, github, shopify, slack, twilio, mailgun. Returns the headers, the exact body to send and a ready-to-run curl command.
verify_webhook_signature Check whether a webhook signature is valid for a raw body and a secret, and diagnose why it fails (wrong secret, whitespace, re-serialized JSON body, expired timestamp, wrong URL for Twilio). Providers: stripe, github, shopify, slack, twilio.
explain_webhook_request AI analysis of a captured request. mode=explain: who sent it, which event, key fields, how to verify the signature, pitfalls. mode=handler: complete receiving code that verifies the signature and handles this event. Included in paid plans; anonymous and free users get 3 trials.

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