Kids Online Safety Act (KOSA)
Establishes a duty of care for platforms, requiring them to disable addictive features and algorithmic feeds for minors by default.
What KOSA Requires
Key provisions of Kids Online Safety Act
Duty of Care
Platforms must exercise reasonable care in designing and operating their services to prevent and mitigate harm to minors, including mental health harms, bullying, exploitation, and substance abuse promotion.
Default Privacy for Minors
All privacy settings for minor users must default to the most restrictive options available. Platforms cannot require minors to opt out of data collection or content personalization.
Opt-Out of Algorithmic Recommendations
Minors must be provided with a clear, accessible mechanism to opt out of personalized algorithmic recommendations. Chronological or non-personalized feeds must be available as the default experience.
Disable Addictive Design Features
Platforms must disable or limit features known to drive compulsive usage among minors, including infinite scroll, autoplay, push notification streaks, and variable-reward engagement patterns.
FTC Enforcement Authority
The Federal Trade Commission is granted authority to enforce KOSA provisions, investigate violations, and impose civil penalties. State attorneys general may also bring enforcement actions.
Annual Independent Audits
Covered platforms must conduct annual independent audits to assess compliance with duty-of-care obligations, report findings to the FTC, and make audit summaries publicly available.
How Phosra Helps
KOSA provisions mapped to Phosra features
Each KOSA requirement is addressed by a specific Phosra capability. Integrate once, and your platform is covered.
Duty of care for minors
PCSS Policy Engine
addictive_design_controlPhosra's 40-category rule system covers the full scope of KOSA's duty-of-care requirements, enforcing protective defaults across all connected platforms in a single API call.
curl -X POST https://api.phosra.com/v1/enforcement \
-H "Authorization: Bearer sk_live_..." \
-H "Content-Type: application/json" \
-d '{
"child_id": "ch_emma_01",
"rules": ["algo_feed_control",
"addictive_design_control",
"targeted_ad_block"],
"platforms": ["youtube", "tiktok", "instagram"]
}'
Default privacy settings
Age-Based Defaults
targeted_ad_blockPhosra automatically maps child age groups to the most restrictive privacy defaults across each connected platform, ensuring compliance without manual configuration.
curl -X POST https://api.phosra.com/v1/children/ch_emma_01/defaults \
-H "Authorization: Bearer sk_live_..." \
-H "Content-Type: application/json" \
-d '{
"age_group": "teen_13_15",
"apply_to": ["youtube", "tiktok", "instagram"]
}'
Algorithmic feed opt-out
Algorithm Feed Control
algo_feed_controlThe algo_feed_control rule category disables personalized recommendations and switches feeds to chronological mode on YouTube, TikTok, Instagram, and other supported platforms.
curl -X POST https://api.phosra.com/v1/enforcement \
-H "Authorization: Bearer sk_live_..." \
-H "Content-Type: application/json" \
-d '{
"child_id": "ch_emma_01",
"rules": ["algo_feed_control"],
"platforms": ["youtube", "tiktok"]
}'
Disable addictive features
Addictive Design Control
addictive_design_controlThe addictive_design_control rule disables autoplay, infinite scroll, notification streaks, and other compulsive-use patterns across all connected platforms.
# MCP tool invocation
tool: trigger_child_enforcement
input: {
"child_id": "ch_emma_01",
"rules": ["addictive_design_control"],
"scope": "all_connected_platforms"
}
FTC enforcement readiness
Enforcement Audit Trail
Every enforcement action is logged with timestamps, platform responses, and rule snapshots, producing a complete audit trail for regulatory review and FTC compliance documentation.
curl -G https://api.phosra.com/v1/enforcement/audit \
-H "Authorization: Bearer sk_live_..." \
-d "child_id=ch_emma_01" \
-d "law=kosa" \
-d "from=2026-01-01" \
-d "to=2026-02-10"
Annual compliance audits
Compliance Dashboard
The Phosra dashboard provides real-time visibility into enforcement status across platforms, enabling platforms to demonstrate continuous compliance during audit cycles.
curl -G https://api.phosra.com/v1/compliance/status \
-H "Authorization: Bearer sk_live_..." \
-d "law=kosa"
Coverage Assessment
KOSA compliance checklist
Compliance Coverage
Start building KOSA-compliant features today
Phosra handles the complexity of multi-platform compliance so you can focus on building great products for families.