Feed 17,410+ classified AI-tool domains into your CASB platform. Transform your cloud access security broker from a passive observer into an active AI governance engine.
Firewalls, DNS filters, and endpoint agents each play a role in AI governance. None match the depth of visibility and control a CASB provides.
A CASB doesn't just see that a user connected to an AI domain. It sees session context, uploaded data, user identity, device posture, and specific actions performed. The difference: knowing an employee visited chat.openai.com vs. knowing a finance employee uploaded a 2MB spreadsheet to ChatGPT from an unmanaged device at 11pm on a Saturday.
Deploy inline mode for enforcement and API mode for discovery. The AI Tools Blocklist provides the domain intelligence layer your CASB needs for both.
CASB sits as a forward/reverse proxy in the traffic path. Every HTTP request passes through for real-time inspection, DLP enforcement, and blocking before data reaches the AI tool.
Best for: enforcement & data loss preventionConnects to cloud service APIs after the fact to scan for policy violations and discover shadow IT. Cannot prevent data from reaching an AI tool — only detects that it already has.
Best for: discovery & auditInspect the full HTTP transaction — uploaded files, submitted prompts, pasted data — not just domains and IPs. Session-level visibility is impossible at the firewall or DNS layer.
Bind policies to users and groups from your IdP — not just IPs. Apply different AI access rules to engineering, legal, HR, and finance with appropriate DLP profiles.
Scan file uploads and form submissions in real time. Detect PII, source code, credentials, and financial data before they leave the organization.
The two deployment modes see different things, stop different things, and fail in different ways. Compare before you choose where to enforce.
| Aspect | Inline Mode | API Mode |
|---|---|---|
| How it works | Forward/reverse proxy in the traffic path | Connects to SaaS APIs (Graph, Google Workspace, etc.) |
| What it sees | Full request/response content, files, prompts, payloads | API-level activity logs within sanctioned apps |
| Best for | Blocking access, DLP scanning, real-time enforcement | Shadow IT discovery, embedded AI features in SaaS |
| Limitation | Requires agent-based traffic steering on endpoints | Cannot prevent data submission — only detects after the fact |
| AI tool coverage | All 17,410+ AI domains via blocklist integration | Only sanctioned apps with API connectors (e.g., productivity suite AI features) |
Most enterprises deploy both modes simultaneously. Inline mode enforces real-time policies; API mode supplements with retrospective discovery of AI features within sanctioned SaaS platforms.
Your inline CASB platform classifies thousands of cloud apps, but the AI landscape evolves faster than any single vendor catalog. The AI Tools Blocklist bridges this gap with 17,410+ classified AI domains importable as custom app definitions.
Load domains grouped by category via your CASB's REST API as custom URL lists.
Map each URL list to a real-time protection policy with category-appropriate actions.
Daily feed updates push new AI tool domains to your CASB automatically — no manual intervention.
Each of the 18 blocklist categories maps to an enforcement action matched to its data-exfiltration risk.
| Category | Action | Reason |
|---|---|---|
| Text Generation | User Alert | Coach users, allow with data sensitivity warning |
| Code Generation | Block | Source code exfiltration & IP exposure risk |
| Image Generation | Allow + Log | Low data sensitivity from text-to-image prompts |
| Data Analytics | Block | Users upload entire datasets with sensitive records |
| Voice & Speech | Block | Biometric voice data exposure risk |
| AI Agents | Block | Autonomous data access beyond user intent |
| Healthcare AI | Block | PHI/HIPAA compliance exposure |
AI-Upload-Sensitive-Data to match your organization's sensitive data patterns — credit card numbers, SSNs, API keys, and internal project names.Cloud security platforms integrate natively with identity providers, endpoint protection, and enterprise productivity suites. For organizations already invested in a cloud ecosystem, they provide the most friction-free path to CASB-based AI governance.
Analyzes firewall and proxy traffic logs to identify cloud apps in use, user counts, and data upload volumes.
Network telemetry from managed endpoints captures AI tool access even when traffic bypasses the proxy.
Tag every AI-related app with custom risk scores and governance tags. Newly launched AI tools are immediately identified and tagged as "unsanctioned."
Imports the blocklist and tags each app in the cloud app catalog with a category-specific label. Marks all as unsanctioned to trigger governance workflows.
Fires when a new or unclassified AI tool appears in network traffic. Alerts the SOC and auto-marks the app as unsanctioned.
Inspects all file uploads to sanctioned AI tools (ChatGPT, Copilot, Claude) against DLP profiles for PII, source code, and financial data.
Combine Conditional Access with CASB session controls to enforce layered access policies for AI tools.
Whichever CASB architecture you run, the blocklist supplies the same continuously updated AI domain intelligence — imported once, enforced everywhere.
Proxy-based CASB platforms provide inline enforcement through their cloud proxy architecture. The AI Tools Blocklist integrates through custom URL categories and cloud application control policies.
Control what users can do on an AI tool — not just whether they can reach it.
Allow browsing ChatGPT but block file uploads and paste operations.
Allow API access to Claude from the engineering subnet but block web interface from all others.
Allow AI tool interaction but block download of generated content that may contain hallucinated data.
Map each of the 18 AI tool categories to a separate custom URL category. Block, allow with caution, or monitor based on your risk appetite.
Enable mandatory SSL decryption for all AI tool URL categories. Ensure AI domains never fall into bypass or exempt categories.
Blanket bans drive adoption underground. Effective governance uses a tiered model that recognizes productivity benefits while managing data risks.
DLP scanning is the most critical control for sanctioned and tolerated tiers. The risk shifts from unauthorized access to unauthorized data submission.
| Content Detected | Action | Alert Level |
|---|---|---|
| Internal project name | User coaching notification | Informational |
| Credit card / SSN | Block submission + SOC alert | High |
| Source code + embedded API keys | Block + alert + escalate as credential exposure | Critical |
This graduated response avoids alert fatigue while ensuring high-risk data submissions are stopped immediately. See our AI data handling policy guide for detailed DLP profile configuration.
Tenant restrictions ensure employees use your enterprise AI tenant (where DPAs apply) — not personal accounts where data may be used for model training.
Session policies check the tenant identifier in authentication tokens. Integrates with identity provider conditional access app control.
Tenant restrictions configured through steering configuration with HTTP header injection rules for AI tool domains.
Custom header insertion rules in URL filtering policies restrict access to approved organizational tenants only.
Employees don't submit procurement requests to use a free AI chatbot. They open a browser tab and start working. CASB telemetry enriched with the AI Tools Blocklist is the most effective mechanism for discovering shadow AI at scale.
CASB analyzes inline proxy traffic or ingests logs from firewalls, proxies, and DNS servers.
Match observed domains against 17,410+ AI-specific domains. Without the blocklist, obscure AI tools appear as "uncategorized web traffic."
Generate automated alerts including category classification, users who accessed it, data volume uploaded, and recommended governance action.
New AI tools enter the Blocked tier by default. CASB enforces the block while the security team assesses for promotion to Tolerated or Sanctioned.
Correlate all web traffic against the daily-updated blocklist. New AI domains trigger SOC alerts with category, risk score, and recommended governance tier. Integrate with your shadow AI detection program.
CASB telemetry reveals data volume uploaded, session frequency, peak usage times, and which departments adopt AI tools fastest. A tool used by one employee is a different risk than one embedded in a team's daily workflow.
Tell us which CASB platform you use. Our team will help you design and deploy a complete AI governance architecture.
Tell us which CASB platform you use and how you want to govern AI tool access across your organization.