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Dev tools · alternatives · 2026

24 alternatives to Actor Kit – XState Machines for Cloudflare Workers

Actor Kit is a library for running state machines in Cloudflare Workers, leveraging XState for robust state management. It provides a framework for managing the logic, lifecycle, persistence, synchronization, and access control of actors in a distributed environment. Key features include: - Persistent, distributed state management - Type-safe events and state with TypeScript and Zod - Real-time updates and seamless server-to-client state transfer - Access control and secure data management - Framework-agnostic with examples for Next.js and Remix integration - Actor lifecycle management in…

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Actor Kit – XState Machines for Cloudflare Workers launched in 2024; newer entries below may have overtaken it.

  1. 1

    Hey HN! Today we're launching ActorCore (https://actorcore.org/), a stateful serverless framework that enables deploying Cloudflare Durable Object-like workloads to any cloud. If you're unfamiliar with stateful serverless: it's like the actor model, where each actor maintains its own isolated, persistent state. (Think Lambda functions with local storage & runs indefinitely.) It enables easily building long-running, realtime, durable, or local-first backends with the flexibility of serverless infrastructure. The most widely used implementation is Cloudflare Durable Objects,…

    2025 · github.com · its alternatives →

  2. 2

    Hi HN! I’m Anirudh — longtime lurker, first time poster, and I couldn’t be more excited to show you Stagehand. Stagehand is a TypeScript project that extends Playwright with three simple AI methods — act, extract, and observe. We’d love for you to try it out using the command below: npx create-browser-app --example quickstart Here’s a sample workflow: const stagehand = new Stagehand(); await stagehand.init(); // Stagehand overrides the Playwright Page and Context classes const { page, context } = stagehand await page.goto("instadash.com") // Regular Playwright…

    2025 · github.com · its alternatives →

  3. 3

    The platform for building stateful AI

    2025 · agents.cloudflare.com · its alternatives →

  4. 4

    Hello! We posted a Show HN for Rivet last year for our container orchestration project (https://news.ycombinator.com/item?id=37188659). In that time, a lot has changed that I think HN will find interesting. Rivet is open-source actor infrastructure similar to Cloudflare's Durable Objects. Rivet itself already serves millions of MAU in production using our current container runtime – primarily for multiplayer games – and Rivet Actors are a new extension to support actor-like workloads. Rivet Actor's core primitives are RPC, state, and events. Actors are powered by Rust, V8…

    2024 · github.com · its alternatives →

  5. 5

    Proto Actor - Ultra fast distributed actors for Go, C# and Java/Kotlin - asynkron/protoactor-go

    2016 · github.com · its alternatives →

  6. 6

    A collection of open-source TypeScript tools by @enmanuelmag. heimdall-mcp for MCP proxy telemetry. agent-harness-kit for multi-agent orchestration.

    May 2026 · ahk.cardor.dev · its alternatives →

  7. 7

    Actor runtime and distributed systems framework for Rust - LeonHartley/Coerce-rs

    2019 · github.com · its alternatives →

  8. 8

    the programmable wallet for the agentic Internet

    Aug 2026 · blog.cloudflare.com · its alternatives →

  9. 9

    Actor Messaging platform. Contribute to actorapp/actor-platform development by creating an account on GitHub.

    2015 · github.com · its alternatives →

  10. 10

    Many teams connecting LLMs to external tools eventually encounter the same architectural issue: as more tools and agents are added, the integration pattern becomes an N×M mesh of direct connections. Each agent implements its own auth, retries, rate limiting, and logging; each tool needs credentials distributed to multiple places and observability becomes fragmented. We built LLM gateway with this goal to provide a single place to manage authentication, authorization, routing, and observability for MCP servers, with a path toward a more general agent-gateway architecture in the future. The…

    Dec 2025 · truefoundry.com · its alternatives →

  11. 11

    Kit is a coding agent runtime. Claude Code but faster, cheaper and more to the point 🎯 - speakeasy-api/kit

    Sep 2026 · github.com · its alternatives →

  12. 12IC

    I created this tool a few months ago to automate some of my tasks. I use it to collect prices and files and to get notified when something changes on certain websites. The task runner uses Playwright. I'm not sure if it can be useful to anybody else besides me :) Any feedback is welcome.

    2022 · rocketride.io · its alternatives →

  13. 13

    Hi HN! We’re the team behind Fiddler, and we recently built an Agent Cache feature. It works by capturing an LLM request/response pair and, once caching is enabled, serving subsequent matching calls locally so duplicate requests never hit the provider. It’s meant to reduce three pains that show up together in agent development: token cost, feedback-loop latency, and output non-determinism. We’d love to hear your thoughts.

    Aug 2026 · telerik.com · its alternatives →

  14. 14

    How we built native x402 payable API support so AI agents can run simulations and pay per request — no human-in-the-loop billing setup required.

    Jun 2026 · cloudworldmodel.ai · its alternatives →

  15. 15

    Hello! We just released freeact (https://github.com/gradion-ai/freeact), a lightweight agent library that empowers language models to act as autonomous agents through executable code actions. By enabling agents to express their actions directly in code rather than through constrained formats like JSON, freeact provides a flexible and powerful approach to solving complex, open-ended problems that require dynamic solution paths. * Supports dynamic installation and utilization of Python packages at runtime * Agents learn from feedback and store successful code actions as…

    2025 · github.com · its alternatives →

  16. 16

    A programmable, observable and distributed job orchestration system. - odin/README.md at master · theycallmemac/odin

    2020 · github.com · its alternatives →

  17. 17

    Actor runtime and distributed systems framework for Rust - LeonHartley/Coerce-rs

    2023 · github.com · its alternatives →

  18. 18

    Hey HN! We posted Rivet Actors here previously [1] as an open-source alternative to Cloudflare Durable Objects. Today we've released SQLite storage for actors (Apache 2.0). Every actor gets its own SQLite database. This means you can have millions of independent databases: one for each agent, tenant, user, or document. Useful for: - AI agents: per-agent DB for message history, state, embeddings - Multi-tenant SaaS: real per-tenant isolation, no RLS hacks - Collaborative documents: each document gets its own database with built-in multiplayer - Per-user databases: isolated, scales…

    Feb 2026 · github.com · its alternatives →

  19. 19

    We recently started to use agents to update some documentation across our codebase on a weekly basis, and everything quickly turned into cron jobs, logs, and terminal output. it worked, but was hard to tell what agents were doing, why something failed, or whether a workflow was actually progressing. We thought it would be more interesting to treat agents as long-lived workers with state and responsibilities and explicit handoffs. Something you can actually see and reason about, instead of just tailing logs. So we built Clawe, a small coordination layer on top of OpenClaw that lets agent…

    Feb 2026 · github.com · its alternatives →

  20. 20

    Zero-dependency distributed actor framework for TypeScript: typed actors, supervision, mailboxes, behaviors, an event stream, a multi-core runtime, remoting across nodes, and clustering with discovery, placement, singletons, and relocation

    Aug 2026 · tochemey.github.io · its alternatives →

  21. 21

    Editor, Browser, Mail, Terminal, Agents. AI at the center.

    May 2026 · thekit.dev · its alternatives →

  22. 22

    Hi HN, I built Verani, an experimental realtime SDK for Cloudflare Actors (Durable Objects). The goal is to bring a familiar, event-based DX (rooms, emit, channels, lifecycle hooks) to Cloudflare Durable Objects, while handling hibernation correctly. It focuses on - Socket.io-like semantics on top of Durable Objects - Proper Actor hibernation handling (WebSockets survive, state is restored) - Typed API with explicit tradeoffs. It’s early and experimental, but functional. I built it mainly to explore DX and state management patterns on Cloudflare Actors, and I’d love feedback from people…

    Dec 2025 · github.com · its alternatives →

  23. 23

    A programmable, observable and distributed job orchestration system. - theycallmemac/odin

    2020 · github.com · its alternatives →

  24. 24

    Durable Actor Session Protocol. A server protocol for commands, saved outcomes, and recovery.

    24d ago · dasp-protocol.github.io · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →