Domain model for AI agents

Probabilistic systems need deterministic access

Your APIs weren’t built for AI agents. They need a domain model: a governed map of your business that agents can use and you can control.

Built by Apollo. Trusted by industry leaders.

PayPal
Booking.com
Sysco
Block
Wayfair
Cox Automotive
A domain model provides guidance on what to use, when, and how; policy for who can see and do what; and semantics for what data means and how it relates, connecting SaaS apps, internal services, legacy systems, and partner integrations.

Why a domain model?

AI agents are helping developers and non-developers alike build new software, but platform teams lack a centralized way to control, observe, and govern what agents are doing across tools and APIs. A domain model connects every system agents need in a semantic layer, giving security and platform teams a single control point for managing agentic system access.

The Challenge

Poor API Discovery

Employees don't know what's available or how to get access, and agents lack the context for how to use the access they have correctly and efficiently.

Security Risks

Critical business data is exposed to agents with no central way to track what they're accessing, what they're doing with it, or even how many agents are connected.

High Costs

Token budgets expand due to inefficient access patterns, while third party API costs climb as well.

The Solution

Discoverable Semantic Layer

Every API, tool, and data source agents need is available in a single graph, with the context required for agents to use them correctly every time.

Centralized Governance

A domain model manages identity and enforces least-privilege access at the field level for every agent and service, managed from a single control plane.

Cost Control

Agents access exactly the data they need in a single call, cutting token spend, reducing round trips, and improving performance.

A domain model controls how agents can access systems

Enterprise AI agents are only as powerful as the systems they can access, but APIs weren’t built for agents. Apollo GraphOS provides the domain model that connects agents to every enterprise API and service they need, with centralized governance, least-privilege access controls, and full visibility into what your agents are doing and why.

Read more about Apollo GraphOS

Enterprise security & governance

Centrally secure and govern agentic access with robust identity and authorization management across all services, APIs, agents, and users.

Complete visibility into agentic actions

Know exactly which agents are accessing which APIs, tools, and services, and easily refine access grants.

Token usage and cost optimization

Precisely control token consumption and API costs by giving agents access to exactly the data they need, reducing round trips and eliminating over-fetching.

Autonomous agent development

Enable anyone to build and run agents and software with secure, robust integration to first party and third party APIs and systems.

Build your domain model from what you already have

Start fresh

Build a domain model from your existing APIs

With GraphOS Agent Services, you can integrate any number of first-party APIs, third-party SaaS tools, data sources, and other systems agents need to access. We’ll help you build the domain model that will make your agent projects safe and successful.

Start from a graph

Bring your supergraph

Agent Services run on GraphOS, the enterprise GraphQL platform that handles 2 trillion+ operations monthly. If you already have a graph, you have the beginnings of a domain model; we can help incorporate new APIs and implement Agent Services for your use case.

Agents need APIs. You need control.

Building agents that access enterprise systems? Contact us for a demo of why Apollo's domain model makes the difference.