Name: Webhooky
Author: matthiasmaigner

Webhooky MCP

Send yourself a push notification from an AI assistant. No account, one environment variable.

Grade A Local · stdio API key 2 tools v1.0.3 MIT

No reviews yet by matthiasmaignernpm Runs on your machine, nothing hosted

96/100

trust score

tools declared

local

runs on your machine

—

downloads a day

What it does

Send yourself a push notification from an AI assistant. No account, one environment variable.

Quickstart

# 1 — add it to Claude Code
claude mcp add --scope user --env 'WEBHOOKY_URL=${WEBHOOKY_URL}' --transport stdio webhooky-mcp '--' npx -y webhooky-mcp

# 2 — ask your agent for something these tools do
#   send_notification, list_sounds

It needs WEBHOOKY_URL: this reads it from your environment, so export it first.

Webhooky costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.

Publishernot claimed

matthiasmaigner1 server

1 category

All 1 server

Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.

Installation

Where are you running it?

Every route below installs the same thing and ends at the same approval screen. This one runs on your machine: your client starts Webhooky as a process under your own user, with your files and your network, so the tool surface below is what it can do to your computer rather than to a server somewhere else. Its scan result is on the Security tab — read the surface before you approve it.

Claude Codedeclared by this listing

This is a public server: you run it yourself and this marketplace is not in the path. You need Node.js — the current LTS (24) is the safe choice; npx comes with it. Claude Code registers it in one command; --scope user makes it available in every project. Claude Code reads WEBHOOKY_URL (Your Webhooky endpoint URL, copied from the app) from your environment each time it starts the server, so the value stays out of its config: export it in your shell profile (macOS, Linux), or run setx WEBHOOKY_URL … and open a new terminal (Windows). The '--' is in quotes so that PowerShell passes it on.

claude mcp add --scope user --env 'WEBHOOKY_URL=${WEBHOOKY_URL}' --transport stdio webhooky-mcp '--' npx -y webhooky-mcp

Reconnect, or start a new session, and the tools appear in the model’s tool list.

Free on mcprush, and it runs from its publisher’s own package: this marketplace is not in the path, so there is no key of ours to hold and no card to add.

What it asks of you

It reaches a system of yours, so it needs settings only you can give it: WEBHOOKY_URL — Your Webhooky endpoint URL, copied from the app.. You set it in your own client’s config, on your machine — this marketplace never holds it.

What it writes

One config entry your client uses to start the process locally. A local server runs with your file system and your network, which is why it is priced without metering.

What you approve

2 tools, with what each one reads, writes and reaches shown before you agree — the same list on every route above. Read the tool surface.

Tool surface

What the model actually sees. Descriptions are diffed on every release — see version history.

Only tools that write or reach the network

Read from its source code. A server that builds its tool list when it starts can list more tools than this.

Send a push notification to the user's phone via their Webhooky endpoint.

Parameter	Type	Required	Notes
title	string	yes	Notification title, max 100 characters. Keep it scannable.
message	string	no	Notification body, max 500 characters. Omit to use the endpoint's configured text.
sound	string	no	Sound id. Omit to use the sound configured on the endpoint.
vibrate	boolean	no	Override the endpoint's vibration setting for this notification.

List the notification sounds a Webhooky endpoint can play, grouped by what they

No parameter schema on file.

Free

$0 forever

Every tool, no call limit
No card, and mcprush charges nothing for it
Source published under MIT
Runs on your machine — nothing of it reaches our gateway
Nothing to cap, because mcprush bills nothing

Nothing here is billable: mcprush charges nothing to install Webhooky or to call it, at any volume.

ATrust score 96 / 100

Release 1.0.3 · scanned 11 Nov 2026

Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.

Threat score100

Client score96

Findings0 threat · 0 capability

Capabilitymoderate

Coveragesource

Verificationrepo

Surface digestee264ce7ff352f989139c5e175ff804fc979864b2cecc2aff39b1c2d76e415fb

Score vectorthreat 100 → client 96

Term	Level	What it prices	Points
capability-exposure	moderate	capability blast radius (moderate) — client exposure if the model is manipulated	−3
verification-discount	repo	publisher verification (public source) — no provenance, but the source is public and inspectable	−1
coverage-honesty	source	inspection depth (source) — how much of the target the scan could see	−0

score = clamp(round(threatScore − E_cap − E_ver − E_cov), 0, 100). No model, no opinion, no network call at scoring time: the same methodology version against the same bytes always produces this number, and every line above is a field of the report rather than a summary of it.

What the scan could actually read

A grade is only as meaningful as its coverage, so the scanner publishes its own depth before it publishes its result.

Tool surfaceread

Implementation sourceread

Package metadataread

Live transportnot available

Tools were statically extracted from the published source (2 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command "npx -y <package>".

Capability — what it could do if the model were manipulated

Tags derived from each tool’s schema and the implementation, not from what the tool calls itself. moderate is the level these add up to.

Tool	Capability tags	Why the tag was assigned
send_notification	external-sink	external-sink: keyword "send_notification", handler sends an HTTP POST (fetch(ENDPOINT) at index.js:104
list_sounds	no tags

Toxic-flow graph

The lethal trifecta, checked as a graph rather than as a checklist: untrusted input, a sensitive source and an external sink have to meet before there is a path worth worrying about.

The public result for this release does not print the flow graph, so there is nothing to show here. That is not the same as "no paths were found": what the scan did read is above, under coverage.

Supply chain and provenance

Integrityfirst-seen

Surface digestee264ce7ff352f98

Scanned2026-11-11

This is the first scan of this surface here, so there is nothing yet to compare it against.

Every result on this tab comes from one deterministic pass over the published package — offline, rule by rule, and auditable line by line above. Same methodology version, same bytes, same score.