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AI · alternatives · 2026

24 alternatives to ACN

Open-source infrastructure for AI agents to collaborate

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.

  1. 1

    Hi HN, I am an independent open-source researcher. For the past few months, I've been building a2a-project, an experimental economic layer for autonomous AI agents on the Base Mainnet. The Problem: AI evolution is exponential, while human regulation is linear. If agents become economic actors, they will transact at speeds and granularities that traditional fiat rails cannot handle. We need a native protocol to bridge this "Speed Gap" and ensure stability. The Experiment (Quantum-Humanistic Economics): I implemented a novel mechanism into Solidity smart contracts: Quantum Task Buffer: Work…

    2025 · github.com · its alternatives →

  2. 2
    Switchfree▲527

    Bring any AI agent into Slack, Teams & Discord. Open-source.

    Aug 2026 · flintai.dev · its alternatives →

  3. 3

    Tag any agent, wherever work happens.

    Aug 2026 · agentconnect.md · its alternatives →

  4. 4

    OpenAgents - The collaboration OS for AI agents. Contribute to openagents-org/openagents development by creating an account on GitHub.

    Apr 2026 · open-agents.dev · its alternatives →

  5. 5
    agent.ai▲587

    The #1 Professional Network for AI Agents

    2025 · builderpack.com · its alternatives →

  6. 6
    Agenta▲362

    Open-source prompt management & evals for AI teams

    Nov 2025 · agenta.ai · its alternatives →

  7. 7
    AP2▲155

    The open protocol for agentic commerce

    2025 · cloud.google.com · its alternatives →

  8. 8

    Much of my work right now involves complex, long-running, multi-agentic teams of agents. I kept running into the same problem: “How do I keep these guys in line?” Rules weren’t cutting it, and we needed a scalable, agentic-native STANDARD I could count on. There wasn’t one. So I built one. Here are two open-source protocols that extend A2A, granting AI agents behavioral contracts and runtime integrity monitoring: - Agent Alignment Protocol (AAP): What an agent can do / has done. - Agent Integrity Protocol (AIP): What an agent is thinking about doing / is allowed to do. The problem:…

    Feb 2026 · mnemom.ai · its alternatives →

  9. 9OS
  10. 10

    Hello hackernews! I'm excited to share a new open source python library I just released for creating AI agent-integrated systems. The name is `agency`. It differs from other agent libraries, most importantly in that it's intended to address a distinct part of the overall problem, that of agent integration. It is not an agent toolchain like LangChain and others. `agency` is a framework intended for safely integrating agents with computing systems and humans in a way that all parties can easily understand and communicate with each other. I've spent a lot of time on the readme which contains a…

    2023 · github.com · its alternatives →

  11. 11

    Hi HN, Founder here. We built Pica, an open-source platform in Rust to enable agentic AI with three main focus areas: - Access to APIs and tools: Universal SDKs that let AI agents use thousands of external actions without blowing up your context window. - Visibility and traceability: Full audit logs of every decision/action to ensure transparency and accountability. - Alignment with human intentions: Seamless guardrails for autonomous tasks; e.g., restricting certain email actions to human approval. Why this matters: As autonomy in AI grows, we need robust solutions for trust and…

    2025 · picaos.com · its alternatives →

  12. 12
    A2A Net▲29

    Automatically optimize an AI agent from your B2B SaaS APIs

    Sep 2026 · a2anet.com · its alternatives →

  13. 13

    ACI.dev is the open source tool-calling platform that hooks up 600+ tools into any agentic IDE or custom AI agent through direct function calling or a unified MCP server. The birthplace of VibeOps. - aipotheosis-labs/aci

    2025 · github.com · its alternatives →

  14. 14

    An embeddable cross-platform AI agent library written in C. Cloud and local LLMs, tool calling, long-term memory, voice, sessions, research mode, self-evolving loops. The SQLite of agent frameworks: small, portable, just works. - sqliteai/adam

    May 2026 · github.com · its alternatives →

  15. 15

    Keep your OpenClaw agents running. Free beta, no code change

    Apr 2026 · openinfer.io · its alternatives →

  16. 16

    agents, ai agents, reusable agents, ai, library, llm

    Aug 2026 · agentcn.dev · its alternatives →

  17. 17

    Open-Source AI Agent Platform, Built for Your Needs.

    2025 · collabai.software · its alternatives →

  18. 18

    Comprehensive directory of A2A

    2025 · github.com · its alternatives →

  19. 19

    Zero-infrastructure A2A messaging between AI agents on different machines — Claude, ChatGPT/Codex, Copilot, any harness; ntfy relay transport, no ports, no server - husker/a2acast

    Aug 2026 · github.com · its alternatives →

  20. 20

    Open-source AI agent platform — own it, run any model

    Jul 2026 · ibl.ai · its alternatives →

  21. 21
    Monoid▲12

    Open-source platform for AI agents

    2023 · its alternatives →

  22. 22

    The TCP/IP for AI agent swarms. Open source.

    Mar 2026 · society.computer · its alternatives →

  23. 23

    Hi, I built Axiomeer, an open-source marketplace protocol for AI agents. The idea: instead of hardcoding tool integrations into every agent, agents shop a catalog at runtime, and the marketplace ranks, executes, validates, and audits everything. How it works: - Providers publish products (APIs, datasets, model endpoints) via 10-line JSON manifests - Agents describe what they need in natural language or structured tags - The router scores all options by capability match (70%), latency (20%), cost (10%) with hard constraint filters - The top pick is executed, output is validated (citations…

    Feb 2026 · github.com · its alternatives →

  24. 24HO

    gm gm, We’re excited to show our project, Hive Network, a new frontier for decentralized AI agents that operate both on-chain and off-chain. Our mission is to make AI more powerful and transparent, and we’re inviting you to join us in this revolution. What is Hive Network AI? -- Hive Network AI is a platform where developers can create, deploy, and manage AI agents that function autonomously across blockchain and traditional networks. Our system addresses significant issues in the AI space, such as the lack of transparency, difficulty in monetizing models, and insufficient research funding.…

    2024 · hivenetwork.ai · 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 →