The best parlant alternatives

Vibe-Trading

HKUDS/Vibe-Trading

"Vibe-Trading: Your Personal Trading Agent"

Choose Vibe-Trading if…

• MIT License suits your use better than Apache License 2.0
• you want the more widely starred option (38.1k)
• you specifically need algorithmic-trading or backtesting

Shares ai-agent, llm, python with parlant.

E2B

e2b-dev/E2B

Open-source, secure environment with real-world tools for enterprise-grade agents.

Choose E2B if…

• you specifically need agent or ai

Shares ai-agent, llm, python with parlant.

omnigent

omnigent-ai/omnigent

Omnigent is an open-source AI agent framework and meta-harness: orchestrate Claude Code, Codex, Cursor, Pi, and custom agents — swap harnesses without rewriting, enforce policies and sandboxing, and collaborate in real time from any device.

Choose omnigent if…

• you specifically need agent-framework or agent-governance

Shares ai-agent, llm, python with parlant.

sellbird

ethanplusai/sellbird

Sellbird (formerly Harvey): the open-source outreach platform that runs on your Claude or ChatGPT plan. Finds companies and decision makers, verifies emails, writes personal cold email, sends it and handles the replies.

Choose sellbird if…

• GNU Affero General Public License v3.0 suits your use better than Apache License 2.0
• you prefer a smaller, narrower project to a large one
• you specifically need autonomous-agent or claude

Shares ai-agent, lead-generation, python with parlant.

hermes-agent

NousResearch/hermes-agent

The agent that grows with you

Choose hermes-agent if…

• MIT License suits your use better than Apache License 2.0
• you want the more widely starred option (263.0k)
• you specifically need ai or ai-agents

Shares ai-agent, llm with parlant.

langchain

langchain-ai/langchain

The agent engineering platform.

Choose langchain if…

• MIT License suits your use better than Apache License 2.0
• you want the more widely starred option (149.4k)
• you specifically need agents or ai

Shares llm, python with parlant.

browser-use

browser-use/browser-use

Agents that use the browser.

Choose browser-use if…

• MIT License suits your use better than Apache License 2.0
• you want the more widely starred option (120.8k)
• you specifically need ai-agents or ai-tools

Shares llm, python with parlant.

mem0

mem0ai/mem0

The Memory Layer for AI Agents - Drop-in memory infrastructure for AI agents and apps. Context that persists. Built for production.

Choose mem0 if…

• you want the more widely starred option (68.9k)
• you specifically need agentic-memory or agentic-memory-system

Shares llm, python with parlant.

CowAgent

zhayujie/CowAgent

Open-source super AI assistant & Agent Harness. Plans tasks, runs tools and skills, self-evolves with memory and knowledge. Multi-agent, multi-model, multi-channel. Lightweight, extensible, one-line install. (formerly chatgpt-on-wechat)

Choose CowAgent if…

• MIT License suits your use better than Apache License 2.0
• you want something your agent can install directly rather than a library to wire up yourself
• you want the more widely starred option (47.9k)
• you specifically need ai or ai-agents

Shares ai-agent, llm with parlant.

langgraph

langchain-ai/langgraph

Build resilient agents.

Choose langgraph if…

• MIT License suits your use better than Apache License 2.0
• you want the more widely starred option (44.9k)
• you specifically need agents or ai

Shares llm, python with parlant.

Memori

MemoriLabs/Memori

Memori is agent-native memory infrastructure. A LLM-agnostic layer that turns agent execution and conversation into structured, persistent state for production systems. Built for enterprise, Memori works with the data infrastructure you already run, no rip-and-replace, and deploys across managed cloud, single-tenant cloud, VPC, and on-premises.

Choose Memori if…

• you specifically need agent or agent-memory

Shares llm, python with parlant.

opensquilla

TokenRhythm/opensquilla

OpenSquilla — Token-Efficient AI Agent with same budget, higher intelligence density

Choose opensquilla if…

• you want something your agent can install directly rather than a library to wire up yourself
• you prefer a smaller, narrower project to a large one
• you specifically need agent or ai

Shares llm, python with parlant.