Where does an agent's state live?

In a per-agent Durable Object with SQLite-backed storage — no separate database is needed.

Which LLM providers can it use?

Workers AI by default, plus OpenAI, Anthropic, Google Gemini, or any other provider.

FrameworkOpen sourceNot yet hands-on tested

Cloudflare Agents

Create stateful AI agents with persistent memory, real-time connections, and scheduled tasks on Cloudflare.

What it is

Cloudflare Agents is an open-source SDK for building and deploying stateful AI agents on Cloudflare Workers, where each agent instance is backed by a Durable Object for persistent state and lifecycle, with built-in WebSockets, scheduling, model calls, and MCP.

At a glance

7/7 facts sourced

Pricing: No separate charge for the SDK — you pay for underlying Workers and Durable Objects. Workers has a free tier (100k req/day) and a paid plan from $5/mo; Durable Objects bills requests, duration, and (from Jan 2026) SQLite storage.source ↗
Hosting model: Cloudflare serverless — Workers for compute with each agent as a Durable Object; deploy once and Cloudflare runs the agents across its global network.source ↗
Memory & state: A core strength — each agent is a Durable Object with SQLite-backed local storage, persistent memory, durable identity, and recoverable execution, with no external database required.source ↗
MCP support: Nativesource ↗
Integrations: Decorator methods, state sync, scheduling, WebSockets, AI chat persistence, workflow orchestration, email/voice, browser agents, sandboxed code execution, and React hooks (useAgent, useAgentChat).source ↗
Model providers: Workers AI by default, plus OpenAI, Anthropic, Google Gemini, or any other provider.source ↗
Open source: Yessource ↗

4.5of 5

Editorial scorecard

Overall 4.5 / 5

Our opinion — the same 0–5 rubric is applied to every platform, including Alfe. See the rubric.

Developer experience4/5

Pricing transparency & value4/5

Scalability5/5

Memory & state5/5

Integrations4/5

MCP nativeness5/5

Strengths

Durable per-agent state via SQLite-backed Durable Objects, with no external database.
Native bidirectional MCP, including hosting remote MCP servers.
Open source (MIT) and model-agnostic.

Trade-offs

Paid usage requires the Workers Paid plan (from $5/mo) and bills across several metered resources.
Tied to the Workers and Durable Objects runtime and its constraints, such as CPU-time limits.
Durable Object SQLite storage billing is newly enabled (target Jan 2026) — worth monitoring for state-heavy agents.

Our take

Editorial opinion — not a hands-on test result

In our opinion, Cloudflare Agents is one of the more compelling options when you want stateful agents with durable, per-instance memory and are happy to build on Cloudflare's runtime. Its memory model and native MCP support are standout strengths. The trade-off is platform lock-in to Workers and Durable Objects, and multi-resource billing you should model before scaling.

FAQ

Where does an agent's state live?: In a per-agent Durable Object with SQLite-backed storage — no separate database is needed.
Which LLM providers can it use?: Workers AI by default, plus OpenAI, Anthropic, Google Gemini, or any other provider.

Compare Cloudflare Agents

Sources

Cloudflare Agents docs · accessed 2026-07-01
Cloudflare Agents on GitHub (MIT) · accessed 2026-07-01
Workers pricing · accessed 2026-07-01
Cloudflare Agents MCP docs · accessed 2026-07-01

The Agent Examiner editorial · last updated 2026-07-01. Facts are drawn from each vendor’s own public materials; scores are our editorial opinion (methodology).

Product and company names are trademarks of their respective owners and are used here only to identify the products under discussion.