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

Visual workflow builder with 400+ integrations, self-host for free

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2
Reasoning

DeepSeek R1

Open reasoning model, shows its thinking process, cheap API

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3
Execution

Qwen3.5-Coder

Strong coding model available via Groq free tier

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4
Memory

ChromaDB

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

Langfuse

Open-source LLM observability, self-hosted option

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Tools in this Stack

Qwen Code

2,000 req/day with Qwen3.6-Plus

Free tierOpen sourceAPI
No credit card required
2,000 requests/day, 60 req/min
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

Jina Embeddings v3

1M tokens/day free, multilingual

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