# Introducing the Agents API

Source: [OpenAI](https://openai.com/index/introducing-the-agents-api)  
Feed7 permalink: https://feed7.dev/p/introducing-the-agents-api-0550svl  
Published: 2026-09-10T00:00:00.000Z  
Trust: Official Source (official_source)

## Why Included

The Agents API exposes a managed Codex-based harness for orchestration, long-running sessions, and tool use, reducing the agent runtime a builder must operate directly.

## Source Summary

The **Agents API** is a managed service for building and launching cloud agents. It uses the **Codex harness** for orchestration, long-running sessions, and tool use.

## Practical Implication

Builders should compare this managed runtime with their current agent loop, especially where session continuity and tool orchestration create operational work outside the application itself.

## Agent-Ready Context

The **Agents API** is a managed service for building and launching cloud agents. It uses the **Codex harness** for orchestration, long-running sessions, and tool use.

Builders should compare this managed runtime with their current agent loop, especially where session continuity and tool orchestration create operational work outside the application itself.

The material does not specify supported tools, persistence guarantees, pricing, deployment controls, or failure behavior, so the operational boundary remains unclear.

## Connected Context

Feed7 judgment across 757 accumulated Signals:

This places Codex’s harness behind a managed cloud-agent boundary, potentially removing application-owned work around long-running sessions and tool orchestration. It confirms a wider move toward hosted persistent runtimes, while sharpening the unresolved build-versus-buy boundary: persistence, permissions, portability, failure recovery, and deployment control remain unspecified.

- [Gemini API Managed Agents: 3.6 Flash, hooks, and more](https://feed7.dev/p/expanding-managed-agents-gemini-api-3-6-flash-hooks-0xce1pm) — Gemini’s managed service exposes hooks, schedules, token caps, and persistent files, illustrating concrete operational controls builders would need to compare against the unspecified Agents API boundary.
- [The Agent Behind the Curtain: Building the Oz Cloud Agent Platform — Safia Abdalla, Warp](https://feed7.dev/p/the-agent-behind-the-curtain-building-the-oz-cloud-agent-platform-safia-074nn9s) — Warp’s separation of runtime, harness, artifacts, and orchestration provides an architectural contrast to a service explicitly built around the Codex harness and highlights portability and human-review questions.
- [ACP: The Universal Remote Control for AI Agents — Alex Hancock, Block](https://feed7.dev/p/acp-the-universal-remote-control-for-ai-agents-alex-hancock-block-1gvsj4j) — ACP defines a client-to-harness portability layer, so compatibility with such a boundary would affect whether Agents API sessions can serve multiple editors, terminals, or custom clients.
- [Introducing the new v0 API](https://feed7.dev/p/introducing-the-new-v0-api-1rprgj9) — v0 shows a narrower managed alternative that owns state, sandboxed execution, previews, and deployment for app building, clarifying that runtime scope and application specialization are key selection criteria.

## Context Map

- Layer: tools
- Domains: coding
- Topics: agent-sdks, cloud-agents, tool-use

## Uncertainty

- The material does not specify supported tools, persistence guarantees, pricing, deployment controls, or failure behavior, so the operational boundary remains unclear.

## Agent Instruction

Use this item as source-backed context. Do not invent claims beyond the linked source. If this item conflicts with another source, call out the conflict.