PayHook vs ApiNotes

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

PayHook compared with ApiNotes
Detail	PayHook	ApiNotes
What it does	Payment webhook debugger for Stripe, Paddle, Lemon Squeezy, Polar and Dodo	API documentation tool with automatic changelogs and breaking-change detection
Stage	MVP	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Not given	Freemium
Pricing	Free plan: $0 forever with 1 project, signature checks for all five providers, 3 days of history with daily event limit. Pro plan: $12 per month with unlimited projects, plain-English diagnosis, fix prompts, and 30 days of history. Lifetime: $99 once, first 100 only, with everything in Pro for life	Starter: Free (1 API, public only, up to 25 subscribers); Team: $19/month (5 APIs, unlimited subscribers)
Key features	Signature verification for Stripe, Paddle, Lemon Squeezy, Polar and Dodo Plain-English diagnosis of webhook failures Fix prompts for Cursor and Claude Code Replay events with re-signed payloads Works without localhost for cloud development environments View incoming events and HTTP status codes 30 days of event history in Pro plan	Automatic API Changelog Generation Breaking-Change Detection & Diffs Interactive REST API Documentation OpenAPI 3.1, 3.0 & Swagger 2.0 Support Code Examples in 10+ Languages Custom Domain Support GitHub Integration OpenAPI Validator Spec Diff Tool cURL to OpenAPI Converter
What makes it different	Diagnosis explains what went wrong, not just what arrived Built for AI code editors and cloud development No code changes required during beta Covers five payment providers including ones Stripe CLI doesn't support Core is open source at launch	Auto-written changelog with breaking-change alerts on every spec update 80% cheaper than Stoplight and ReadMe 5-minute setup with no complex configuration Interactive API testing built into documentation Automatic subscriber notifications on spec changes
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	Not checked yet no change since last check	25 −1 (down) since last check
Trust Flow (Majestic)	2	10
Citation Flow (Majestic)	16	26
Referring domains (Majestic)	2	65

4 details filled in for both companies.

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