Give AI access to the systems that run your business

Every company needs a domain model for AI. Apollo GraphOS helps you build yours over the systems you already run: one architecture for agents, AI experiences, and applications.

Trusted by enterprise leaders

  • AlphaSense
  • Netflix
  • Warner Brothers
  • PayPal
  • Expedia Group
  • The New York Times
  • Wayfair
  • Booking.com
  • RS Components
  • Hyatt
  • Ford Credit
  • MLB

A shared foundation for every AI initiative

As AI takes on more work, your company needs a consistent way to make its services discoverable, explain how to use them, and govern access.

A domain model provides that foundation across the agents and applications you choose. As you add agents and change AI tools, the work you put into connecting and governing your services carries forward.

A domain model optimizes your APIs with the meaning and controls needed to use them.

Semantics What data and operations mean and how they relate

Policy Who can see and do what, enforced on requests

Discovery A place to discover the capabilities needed for a task


See a domain model in action

Intuit built an agentic system to optimize marketing programs in real time. Running it in production required a domain model and access controls. GraphOS is the foundation that lets Intuit's agents work accurately and safely.


Get your domain model with Apollo

Learn how you can get agents running on a domain model in just a few weeks. Start with the APIs and services you have today. Apollo helps you connect them, describe their capabilities, establish access policies, and put your domain model into operation.

Apollo GraphOS is the platform to build and manage the domain model for your business

GraphOS

Build and run your domain model with GraphOS

GraphOS connects REST APIs, GraphQL APIs, and SaaS to a shared domain model for AI agents and applications.

GraphOS is the platform for building and operating domain models for your business. It powers AI agents, applications, and customer experiences at any scale:

  • Federation: a unified graph of your business’s APIs

  • Performance: low-latency access to critical systems

  • Security: precise controls over all services and consumers

  • Observability: visibility into all traffic to your domain model

GraphOS Agent Services

Give agents governed access with GraphOS Agent Services

A support agent uses Search, Identity, Access policy, and Auditing to access permitted Customer fields while email and payment information stay protected.

Agent Services is part of GraphOS. It gives agents a governed way to discover and use the services in your domain model through MCP, with four capabilities:

  • Search: find the APIs and operations needed for a task

  • Identity: track the identity an agent acts under

  • Access policy: enforce what each agent can see and do, field by field

  • Auditing: keep a record of access and activity

One architecture for the ways you use AI

Intelligent business

Equip employees with agents that use company systems to investigate issues, make decisions, and take action

Agentic platform

Let customers and partners bring their agents to your products and services

AI customer experiences

Build AI into the products and experiences your customers use

Intelligent businessIntelligentbusinessAgentic platformAgenticplatformAgentic CXAgenticCXDomain model
Intelligent business, Agentic platform, and Agentic CX connect to a shared Domain model. Fifteen dots represent the underlying systems. Select a use case to highlight the white paths connecting the Domain model to the four systems it relies on.
monthly operations on GraphOS
2 Trillion+
downloads of Apollo open-source software
1 Billion+
willing to recommend Apollo in Gartner Peer Insights*
98%

*Gartner, Gartner Peer Insights Voice of the Customer for API Management, Peer Contributors, 31 March 2026. Based on 55 ratings as of January 2026. Gartner Peer Insights reviews are anonymous.

Enterprise teams trust Apollo

Enterprises rely on Apollo to unify their APIs into a single, discoverable, and reusable platform that adapts to any use case. Product development teams can work independently, reuse APIs, and deliver new features lightning-fast while benefiting from modularity, optionality, and autonomy.

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One domain model for all your agents and applications