npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2026 – Pkg Stats / Ryan Hefner

@c15t/iab

v3.2.1

Published

IAB TCF CMP addon for c15t (TCF 2.4). Generates TC Strings and GPP strings, loads the Global Vendor List (GVL) and collects consent for programmatic advertising.

Readme

@c15t/iab: IAB TCF 2.4 and GPP Addon

IAB TCF 2.4 and Global Privacy Platform (GPP) addon for c15t with TC String and GPP string generation, GVL support, TCF and GPP APIs, and programmatic advertising consent workflows.

c15t is used by 2,100+ sites, including expo.dev, zed.dev, unkey.dev, mintlify.com, and sazabi.com.

Key Features

  • IAB TCF 2.4 support for programmatic advertising consent
  • TC String generation and storage
  • IAB GPP 1.1 API (__gpp) with US state, MSPA US National and TCF EU sections through @c15t/iab/gpp
  • Global Vendor List (GVL) support
  • Purpose, special purpose, feature, special feature, and vendor controls
  • Headless APIs for custom IAB consent experiences
  • React UI integration through @c15t/react/iab

Prerequisites

  • Node.js 20.19 or later
  • c15t 3.x
  • Use Inth for a hosted IAB TCF-certified CMP setup with a managed CMP ID, or register your own CMP with IAB Europe and configure your own CMP ID

Installation

pnpm add @c15t/iab

For React UI components, use the @c15t/react IAB subpath and stylesheet:

import { IABConsentBanner, IABConsentDialog } from '@c15t/react/iab'
@import "@c15t/react/iab/styles.css";

Usage

  1. Configure c15t with the IAB consent model for jurisdictions that require TCF workflows
  2. Use the React IAB components for a prebuilt TCF banner and preference center
  3. Use headless APIs when you need a custom IAB consent experience
  4. Use createGPP from @c15t/iab/gpp to signal US state opt-outs and GPC to ad tech; see the IAB GPP docs
  5. For full implementation details, see the IAB TCF 2.4 docs

Documentation

See the documentation for guides, API reference, and examples.

Related Packages

  • @c15t/react: React IAB consent banner, dialog, and hooks through @c15t/react/iab
  • @c15t/backend: Backend configuration for IAB TCF, GVL, CMP registration, and custom vendors
  • c15t: the consent engine and every framework adapter in one install

Support

Contributing

Security

Do not open a public issue for a security vulnerability. Report it privately through GitHub's vulnerability reporting. We examine every valid report.

  • Do not share the vulnerability in public forums, issues, or pull requests
  • Give the steps to reproduce it and the versions it affects
  • Give us time to release a fix before you disclose it

License

Apache License 2.0


Built by Inth