Micro-SaaS Easy 2,900/mo

Webhook Testing Tool

Receive, inspect, and debug webhooks from any service. Unique endpoint URL catches all incoming requests so you can test integrations without deploying code.

DeveloperAPI
MRR Potential
$3K–$12K
Time to MVP
2–3 weeks
Search Volume
2,900/mo
Market Size
$640M

The Problem

Webhooks require a publicly accessible URL to receive data. During development, localhost isn't accessible. Developers use ngrok tunnels, but they're unstable and expire. Inspecting webhook payloads requires logging and manual parsing.

The Solution

Generate a unique URL endpoint. Any HTTP request sent to it is captured, displayed in a real-time dashboard with headers, body, and timing. Replay requests to your localhost for testing.

Target Audience

Backend developers integrating with third-party APIs (Stripe, GitHub, Twilio) who need to inspect webhook payloads during development

Key Features

1
Unique webhook endpoint URLs
2
Real-time request display with full payload
3
Request replay to localhost
4
Header and body inspection
5
Request filtering and search
6
Team shared workspaces

Market Opportunity

Market Size
$640M — API development and testing tools market
Monthly Searches
2,900/mo
MRR Potential
$3K–$12K
Why Now?

API-first architecture means every SaaS sends webhooks. Microservices multiply the number of webhook integrations. Developer experience tools are a fast-growing market with high willingness to pay.

Revenue Model

Freemium: Free (100 requests/day, 24h retention), $9/mo Pro (unlimited, 30-day retention, replay), $29/mo Team (shared endpoints, API).

Competitive Landscape

Webhook.site

Popular free tool. Good for quick testing but no replay feature, no team support, limited retention

RequestBin (Pipedream)

Free webhook inspector by Pipedream. Basic but pushes users toward their workflow platform

ngrok

Tunnel tool at $8/mo. Solves a different problem (exposing localhost) but developers use it for webhook testing

Recommended Tech Stack

Next.jsWebSocket (real-time)PostgreSQLRedisStripeVercel Edge Functions

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