All stacks

Autonomous Agent Stack

Build self-running AI workflows that handle complex tasks end-to-end with memory and tool use.

$0-30/month6 layers

Best For

Automated code review, documentation updates, testing pipelines, research agents

Stack Components

1
Orchestration

n8n / Gumloop

Visual workflow builder, self-host for free

View tool details
2
Reasoning

DeepSeek R1 / DeepSeek V4

Complex decision making, cheap API

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3
Execution

Qwen3.6-Plus

Strong coding model at 71.2% SWE-bench

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4
Memory

ChromaDB / Supabase Vector

Long-term agent memory and context storage

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5
Embeddings

Jina AI

1M tokens/day free, powers semantic memory

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6
Monitoring

LangSmith

Trace agent steps and evaluate quality

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Tools in this Stack

Qwen Code

Open-source AI agent for the terminal, optimized for Qwen series models.

Open sourceAPIPopular
No credit card required
Only with self-hosted models or free endpoints. Alibaba discontinued their free tier on April 15th, 2026
API2 models
View Qwen Code details

DeepSeek Coder V4

Lite version ~18GB

Open sourceLocal
No credit card required
Free, runs locally
Local2 models
View DeepSeek Coder V4 details

ChromaDB

Simple Python-native vector DB

Open sourcePopular
No credit card required
Free, unlimited local
Hybrid
View ChromaDB details

n8n

Self-hosted workflow automation

Open sourcePopular
No credit card required
Unlimited self-hosted
Hybrid
View n8n details

LangSmith

Tracing and evaluation (5K traces/mo free)

Free tierAPIPopular
No credit card required
5K traces/month
API
View LangSmith details

Jina Embeddings v3

1M tokens/day free, multilingual

Free tierAPIPopular
No credit card required
1M tokens/day
API
View Jina Embeddings v3 details