A agentindex
Comparison

Cloudflare Agents SDK vs Letta

A like-for-like, spec-level comparison. Both entries are verified against their docs and repo.

Cloudflare Agents SDK

Stateful agents on Cloudflare Workers.

  • + Stateful agents on serverless edge
  • + Durable Objects give durable execution and alarms
  • − Cloudflare-locked runtime
  • − Newer mental model to learn

Letta

Stateful agents with long-term memory (formerly MemGPT).

  • + First-class long-term memory and stateful agents
  • + Lets agents persist and self-edit context
  • − Narrower focus than general orchestration frameworks
  • − Memory model adds complexity
Spec Cloudflare Agents SDK Letta
Role Agent framework Agent framework
Tags agent-framework, hosted, orchestration, persona-solo-builder, persona-platform-engineer agent-framework, library, multi-agent, memory, persona-solo-builder, persona-platform-engineer
License Apache-2.0 Apache-2.0
Open source Yes Yes
Self-hostable No Yes
MCP support Yes Yes
Pricing usage freemium
Price Free tier Free tier
Usage cost Metered BYOK
Models claude, gpt, gemini, byok claude, gpt, gemini, byok
Languages typescript python
GitHub stars 5.2k 23.6k
Last activity 2026-07-03 2026-07-03