Complying with California's AB 1043 via signal fusion, not ID uploads

Show HN: Complying with California's AB 1043 via signal fusion, not ID uploads

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California's AB 1043 takes effect January 2027. If your app serves California users, you'll need to request OS-level age signals from Apple/Google and treat them as "actual knowledge" of a user's age. Penalties are $7,500 per affected child for intentional violations.We started building A3 (https://www.a3api.io) after realizing the law has a gap nobody was talking about: browsers have no OS age signal. If you have a web app, the law creates compliance obligations but the platform provides no mechanism. And on native, you're left stitching together Apple's Declared Age Range API and Google's Play Age Signals yourself — two different APIs, two different response formats, two different integrat

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Website: www.a3api.io