Self-hosted AI agent and chatbot builders for small businesses
Short answer
We track 8 active self-hostable AI agent and chatbot builders: AutoGPT Platform, Dify, Langflow, Mem0, CowAgent, AstrBot, Sim, Coze Studio.
Most popular on GitHub: AutoGPT Platform (188k stars).
Lowest official hardware: Langflow (minimum 1 vCPU · 1.5 GB RAM (recommended 2 vCPU · 4 GB RAM), from €11.99/month on our reference server).
Permissive license (MIT/Apache-2.0, fewest conditions): Langflow, Mem0, CowAgent, Sim, Coze Studio.
Single sign-on documented in the free self-hosted edition: Langflow, Sim.
No official hardware figure published: Mem0, CowAgent, AstrBot.
None of them include the AI model: they call a model API (billed by the provider) or a model runtime you host yourself.
Last updated · generated from the same verified data as each app page
Comparison table
| App | What it is | License | Official hardware | Est. server cost | SSO (self-hosted) | GitHub stars | Status |
|---|---|---|---|---|---|---|---|
| AutoGPT Platform | Visual builder for long-running AI agents and workflows, self-hostable as a single container. | Polyform Shield 1.0.0 (autogpt_platform/); MIT for the rest (Source-available) | minimum 6 GB RAM | from €35.99/mo | Not documented | 188k | Active |
| Dify | Visual platform for building LLM apps, RAG chatbots, agents and workflows. | Dify Open Source License (modified Apache-2.0) (Custom / conditional) | minimum 2 vCPU · 4 GB RAM | from €19.99/mo | Paid / enterprise only | 160k | Active |
| Langflow | Visual builder for AI agents and RAG flows that you can deploy as APIs or MCP servers. | MIT (Permissive) | minimum 1 vCPU · 1.5 GB RAM (recommended 2 vCPU · 4 GB RAM) | from €11.99/mo | Free | 156k | Active |
| Mem0 | Long-term memory layer for AI assistants and agents, with a self-hosted REST server and dashboard. | Apache-2.0 (Permissive) | Not published | Not estimated (no official RAM figure) | Not documented | 68.1k | Active |
| CowAgent | Self-hosted AI agent (formerly chatgpt-on-wechat) that answers in WeChat, WeCom, Feishu, DingTalk, Slack and a web console. | MIT (Permissive) | Not published | Not estimated (no official RAM figure) | Not documented | 47.7k | Active |
| AstrBot | Multi-platform AI chatbot and agent framework for QQ, WeCom, Feishu, DingTalk, Official Accounts, Telegram and Slack. | AGPL-3.0 (Network copyleft (AGPL)) | Not published | Not estimated (no official RAM figure) | Not documented | 44.9k | Active |
| Sim | Visual builder for AI agent workflows, with knowledge bases, integrations and an API. | Apache-2.0 (Permissive) | minimum 2 vCPU · 12 GB RAM · 20 GB disk (recommended 4 vCPU · 16 GB RAM · 50 GB disk) | from €69.99/mo | Free | 29.9k | Active |
| Coze Studio | Open-source edition of ByteDance's Coze agent-building platform. | Apache-2.0 (Permissive) | minimum 2 vCPU · 4 GB RAM | from €19.99/mo | Not documented | 21.8k | Active |
Apps from our "AI app & agent builders" category, sorted by GitHub stars; archived projects are excluded. We do not rank by quality; pick by the criterion that matters to you. SSO comes from each app's "Data & compliance" block, filled only from the project's own docs. Cost = cheapest Hetzner Cloud Regular Performance (shared AMD vCPU) plan that meets the project's official RAM and vCPU figure, list price read on 2026-10-25, excl. VAT, server only (no LLM API usage, backups or your time).
Frequently asked questions
What is the best self-hosted AI agent builder for a small business?
Most popular on GitHub: AutoGPT Platform (188k stars). Lowest official hardware: Langflow (minimum 1 vCPU · 1.5 GB RAM (recommended 2 vCPU · 4 GB RAM), from €11.99/month on our reference server). Permissive license (MIT/Apache-2.0, fewest conditions): Langflow, Mem0, CowAgent, Sim, Coze Studio. Single sign-on documented in the free self-hosted edition: Langflow, Sim. No official hardware figure published: Mem0, CowAgent, AstrBot. The right choice depends on which of these matters most to you.
Which self-hosted agent builder needs the least hardware?
Langflow: minimum 1 vCPU · 1.5 GB RAM (recommended 2 vCPU · 4 GB RAM) (from €11.99/month); Dify: minimum 2 vCPU · 4 GB RAM (from €19.99/month); Coze Studio: minimum 2 vCPU · 4 GB RAM (from €19.99/month); AutoGPT Platform: minimum 6 GB RAM (from €35.99/month); Sim: minimum 2 vCPU · 12 GB RAM · 20 GB disk (recommended 4 vCPU · 16 GB RAM · 50 GB disk) (from €69.99/month).
Which self-hosted agent builders have an MIT or Apache license?
Langflow, Mem0, CowAgent, Sim, Coze Studio. AutoGPT Platform uses Polyform Shield 1.0.0 (autogpt_platform/); MIT for the rest. Dify uses Dify Open Source License (modified Apache-2.0). AstrBot uses AGPL-3.0.
Do these agent builders include the AI model?
None of them include the AI model: they call a model API (billed by the provider) or a model runtime you host yourself.
Related
- AI agent builders category
- Self-hosted AI apps with free SSO
- Compare any 2–3 apps side by side
- Cheapest self-hosted ChatGPT alternatives
- Self-hosted AI apps that run without a GPU
- Self-hosted RAG and knowledge base apps for small businesses
- Self-hosted AI apps by license: what a business may do
- Which self-hosted AI apps include SSO for free?
- Which self-hosted AI apps send telemetry by default, and how to turn it off
Every figure on this page comes from the linked app pages, which cite the project's own repository and docs. Spotted something wrong? Tell us.