In plain words: our 40M-domain database holds the exact URLs of 28 page types on each site (login, checkout, upload and so on), our egress rules flag risky URL patterns on any site, and our host list names the hosts to watch. Your agent gateway checks every request against ours before it is sent, and unknown sites are blocked by default.
A per-lookup API for live integrations, one-time database licenses for on-prem policy engines, and OEM licensing for products that ship guardrails to their own customers. 40 million+ classified domains — covering 99.99% of active internet usage.
Over 300 organisations globally have trusted the AI services of our company — among them
AI Agent Allowlist is built by the team behind websitecategorizationapi.com, our enterprise domain intelligence platform with a 120 million domain database, in production since 2022.
Sign up online, pay by PayPal or card, and your API key is active the moment payment completes. Every plan queries the same live database and returns the same record: the page-type map for the domain, verified URLs, IAB content categories, web-filtering categories, and Open PageRank score. Plans differ only in monthly lookup volume, and the per-lookup rate falls as you scale. One incident an allow list would have denied costs more than a decade of any plan here.
Entry tier — one agent, one integration, the full record
Developer tier — for first integrations & small agent fleets
For multi-agent deployments in production
For platforms with many tenants
For gateways & security products
Organization-wide licensing, redistribution rights and procurement support. Scoped and priced around your deployment, not off a list.
Security review, legal and procurement all get what they need. We work to your paper, your timeline and your purchase order.
Pricing follows your agent fleet, lookup volume, number of sites, and whether the data sits in your control plane or ships inside the product you sell. Tell us the shape of it and we will come back with a figure and the paperwork.
Talk to us about enterpriseLoad the whole database into your own policy engine — no per-lookup metering, no data leaving your infrastructure. Coverage is measured in traffic, not domain count: the top 15M domains alone cover 99.99% of real-world page visits. Four tiers from 10M domains to the complete 40M+ database, each a popularity-ranked slice of the full repository, delivered as CSV with the complete record: page-type map with verified URLs, IAB categories, filtering categories, ranks and metadata. Every tier can be bought one-time or with monthly refreshes (optional, 30% of the license price per year), and every tier includes our egress rules and host list.
Top 10M domains by traffic rank
Extended coverage tier
Maximum coverage
The entire repository — for AI labs & platforms
Agent platforms, gateways, enterprise browsers
A one-time purchase includes no updates — it is a snapshot, frozen at purchase-date accuracy. The web underneath it keeps moving: sites restructure and their page-type URLs change, domains expire and change hands (sometimes into entirely different content), and new domains appear every day. With monthly refreshes, your copy is re-delivered every month with re-verified classifications and newly screened domains, so your agents keep making decisions on data that reflects the web as it is — not as it was on the day you bought.
Refresh pricing: 10M +$4,499/yr · 15M +$7,499/yr · 30M +$14,999/yr · 40M+ +$23,999/yr. Tick the refresh box in the purchase form below to include it with your order.
Shipping the data inside your own product — a secure web gateway, enterprise browser, agent framework or safety layer — requires an OEM license: redistribution rights, custom delivery formats (CSV, JSON, SQL, Parquet), and a refresh cadence matched to your release cycle. Custom engagements also cover filtered slices (verticals, countries, your tenants’ domain sets), field extensions, and page-type mapping of domain lists you bring us.
Select your tier and we’ll send the invoice and delivery details — usually within one business day. Prefer to verify quality first? Download the free 100-domain sample.
| Pro | Pro Plus | Advanced | Advanced Plus | Business | Enterprise | |
|---|---|---|---|---|---|---|
| Price | $99/mo | $249/mo | $499/mo | $999/mo | $1,997/mo | Talk to us |
| Lookups / month | 90,000 | 225,000 | 450,000 | 900,000 | 2,000,000 | custom, 10M+ |
| Cost per 1,000 lookups | $1.10 | $1.11 | $1.11 | $1.11 | $1.00 | custom |
| Page-type map (28 types/domain) | ||||||
| Verified page-type URLs | ||||||
| IAB content categories (700+) | ||||||
| Web-filtering categories (59) | ||||||
| JSON over HTTPS, key auth | ||||||
| Priority support | ||||||
| Usage reporting on request | ||||||
| Payment | PayPal, or credit / debit card via PayPal — monthly, cancel anytime | |||||
Simple, predictable accounting. One domain queried = one lookup, no matter how rich the record that comes back.
A lookup is one API request for one domain. The response bundles everything we know about it — the 28-page-type map with verified URLs, IAB Tier 1–4 content categories, and the web-filtering category — and it still counts as a single lookup. You are never billed per field, per category, or per URL returned.
Your quota resets on each monthly billing date. Unused lookups do not roll over, and there is no metered overage billing: if you reach your quota, further requests are declined with a clear status code until the next cycle — or until you upgrade. Your card is never charged more than your plan price.
Outgrowing a tier is a one-step change: subscribe to the larger plan and cancel the old one; the new quota applies immediately. Moving up also moves your per-lookup rate down — from $1.10 per 1,000 lookups on Pro to $0.40 per 1,000 on Enterprise, a 64% volume discount.
Most categorization APIs return one label per domain. Every AI Agent Allowlist record carries three layers of classification, so a single lookup answers content questions, policy questions, and agent-guardrail questions at once.
Full IAB taxonomy across Tiers 1–4, from broad verticals like Finance or Education down to fine-grained subcategories. Use it for content policy, contextual analysis, and brand-suitability decisions in the same call that powers your guardrails.
A dedicated filtering taxonomy built for block/allow decisions — the categories firewalls, DNS filters and secure web gateways actually act on. Map any domain to its filtering class and enforce organization-wide policy without maintaining your own lists.
The layer built for AI agents: for each domain, a map of up to 28 page types — login, signup, checkout, pricing, careers, contact, documentation and more — each with a verified URL. Your agent can be allowed onto a site’s documentation while being kept away from its checkout.
API subscriptions bill monthly and can be cancelled anytime from your PayPal account — access continues to the end of the paid period. Database licenses are one-time purchases invoiced with EU VAT handling by Alpha Quantum (Munich, Germany).
Tell us what your agents do and we’ll recommend the right plan or tier — or build a custom slice from the 40M+ domain repository.
