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About

Flue is an open agent framework for building durable AI agents with a programmable TypeScript harness. Created by the team behind Astro, it uses a React-like hooks API to compose agent behavior, persistent state, lifecycle events, models, tools, sandboxes, subagents, skills, and MCP servers in code. Agents are stateful and addressable over HTTP, keep context across conversations and events, and can change capabilities as work progresses. Flue records every session in a durable stream, so accepted work survives crashes, restarts, and deploys; interrupted sessions resume automatically and clients reconnect without starting over. Developers can run agents locally, in CI, from their own backend, or orchestrate them with systems such as Cloudflare Workflows and Inngest. Secure sandboxes let agents run commands, edit files, and do real work, while tools connect them to APIs and data. Flue is powered by Pi and supports different LLM providers, allowing teams to choose the models they want.

About

The Agents API lets developers build and run cloud agents with the same harness and infrastructure that powers Codex, fully managed by OpenAI. A production-ready agent can be created with a single API call by specifying the task, model, tools, and environment, while OpenAI hosts and maintains the agent harness. Developers can choose where agents run: in an OpenAI-hosted sandbox, on their own infrastructure, or through supported sandbox partners. OpenAI-hosted sandboxes provide secure environments where agents can run code, work with files, use packages, skills, and plugins, and produce artifacts. The API is designed for long-running work, with automatic context compaction that preserves relevant information as sessions span multiple context windows. Tool search loads relevant tool definitions only when needed, while programmatic tool calling lets agents run calls in parallel, chain related operations, and filter or combine results in code.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Developers and AI engineering teams requiring a tool to build durable, stateful agents that can use tools, maintain context, and run across different models and deployment environments

Audience

Developers and AI teams seeking to build reliable, long-running cloud agents with managed context, tools, sandboxes, and multi-agent orchestration

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Flue
Founded: 2026
United States
flueframework.com

Company Information

OpenAI
Founded: 2015
United States
openai.com/index/introducing-the-agents-api/

Alternatives

Alternatives

eve

eve

Vercel
StateFabric

StateFabric

J Gregory Technology Ltd.

Categories

Agentic AI Supported

Categories

Integrations

Amazon Web Services (AWS) Supported
Apache Sentry Supported
AptiStockX Not Supported
ChatGPT Not Supported
ChatGPT Work Not Supported
Cloudflare Supported
Discord Supported
E2B Supported
Microsoft Teams Supported
MongoDB Supported
Node.js Supported
Notion Supported
OpenClaw Supported
PostgreSQL Supported
Railway Supported
Redis Supported
Resend Supported
Telegram Supported
Twilio Supported
TypeScript Supported

Integrations

Amazon Web Services (AWS) Not Supported
Apache Sentry Not Supported
AptiStockX Supported
ChatGPT Supported
ChatGPT Work Supported
Cloudflare Not Supported
Discord Not Supported
E2B Not Supported
Microsoft Teams Not Supported
MongoDB Not Supported
Node.js Not Supported
Notion Not Supported
OpenClaw Not Supported
PostgreSQL Not Supported
Railway Not Supported
Redis Not Supported
Resend Not Supported
Telegram Not Supported
Twilio Not Supported
TypeScript Not Supported
Claim Flue and update features and information
Claim Flue and update features and information
Claim OpenAI Agents API and update features and information
Claim OpenAI Agents API and update features and information