Hookflo tern · House #22,523

What it is

Calls itself “SDK”.

• Calls itself: SDK

“Zero-dependency webhook signature verification and reliability SDK”

Where it puts itself

Rules out “Normalization”.

• Says it will not: Normalization

“Normalization is no longer supported in Tern and has been removed from the public verification APIs.”

What it costs

No free plan.

• Free plan: no

“MIT License Copyright (c) 2025 tern”

“Don't see your platform? Use custom config or open an issue .”

Who it sells to

Sells to developers. In TypeScript.

• Sells to: developers
• Languages: TypeScript

“Zero-dependency webhook signature verification and reliability SDK - Hookflo/tern”

“TypeScript”

How it runs

A API. Runs locally and works offline. Distributed through the npm. Offers an API. Open source. You can bring your own API key.

• Kind: api
• Runs where: on the device, offline
• Distributed via: npm
• API: yes
• Open source: yes
• Bring your own key: yes

“Zero-dependency webhook signature verification and reliability SDK - Hookflo/tern”

“Use Tern without framework adapters in any runtime that supports the Web Request API.”

What it works with

Integrates with Clerk, GitHub, Next.js and 3 more. Names Hookflo/tern on its pages.

• Integrates with: Clerk · GitHub · Next.js · +3
• Names: Hookflo/tern

“Tern handles signature verification for Stripe, GitHub, Clerk, Shopify, and 15+ more platforms”

“Zero-dependency webhook signature verification and reliability SDK - Hookflo/tern”

What it offers as proof

Live, no waitlist. Publishes docs.

“You must be signed in to change notification settings”

“README.md -> https://github.com/Hookflo/tern/blob/main/README.md”