Integration
Claude Code as a service
How to run Claude Code headless behind your product: the API contract, multi-tenant authorization, per-task sandbox isolation, document skills, and configuration comparison.
Decision guides
Choose the right agent backend layer
Evergreen architecture guides for comparing model APIs, model routers, agent runtimes, and hosted harness backends. Product integration steps remain in Docs.
All guides
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Integration
Hermes API
How to run Nous Research's Hermes agent through an API: what Hermes is, the task and session contract, model pairing, and what its benchmark results show about cost and speed.
Concepts
What is an agent harness
An agent harness is the runtime layer around a model that turns it into a working agent: the loop, context, tools, permissions, sandboxing, and recovery. Definition, origins, examples, and how it fits the stack.
Architecture
AI agent API
What a product needs when users expect completed work: sessions, streaming, files, artifacts, routing, and production controls.
Codex
Codex API
The current Codex API reality: OpenAI's seven Codex surfaces, what the Codex SDK actually is, why there is no hosted REST API for Codex tasks in current docs, and how to run Codex over HTTP today.
Architecture
Agent backend or model router?
Use this page to separate model access from product-facing agent work with sessions, files, artifacts, and traces.
OpenRouter
HarnessRouter and OpenRouter
How model routing and agent-backed product work fit together in one stack.