
Stack AI
No-code platform for building and deploying enterprise AI agents and workflows on a visual canvas
Gallery
About Stack AI
Stack AI is an enterprise platform that lets organizations build and deploy AI agents without writing code. The core idea is straightforward: connect your existing business systems, design workflows in a visual drag and drop interface, and let AI handle the repetitive work that used to require either expensive custom development or a team of specialists. It's built for companies that want to automate complex processes but don't have the engineering bandwidth to build everything from scratch. The platform has found traction across industries where manual document processing, data extraction, and decision making consume significant staff time.
The platform works by connecting to over a hundred different business tools and data sources. Once connected, users can design agent workflows that read documents, extract information, make decisions based on rules, and write outputs back into those systems. A legal team might build an agent that reviews contracts, identifies risky clauses, and routes flagged agreements to the right attorney. A finance department could automate the drafting of investment memos from raw portfolio data, pulling context from multiple databases and formatting outputs according to internal templates. Customer service teams can deploy agents that resolve support tickets by pulling context from CRM records, knowledge bases, and previous interactions, then taking action or escalating appropriately. The visual interface means these workflows can be built by business analysts or IT teams rather than machine learning engineers, which fundamentally changes who can participate in AI projects within an organization.
What makes Stack AI different from simpler automation tools is the depth of its AI capabilities combined with genuine flexibility in model selection. Users can deploy different language models optimized for specific tasks within the same workflow. One step might use a model that's particularly good at document understanding while another uses a model optimized for structured data extraction or code generation. The platform handles the orchestration, so teams don't need to manage model selection, API calls, or the complex prompt engineering that typically accompanies multi model workflows. There's also built in human oversight for critical decisions, meaning agents can escalate to people when confidence is low, stakes are high, or the situation falls outside the parameters the workflow was designed to handle. This human in the loop capability is essential for regulated industries where fully autonomous AI decisions aren't appropriate.
Security and compliance are central to the offering rather than afterthoughts. Stack AI holds SOC 2 Type II, HIPAA, GDPR, and ISO 27001 certifications, which opens the door to heavily regulated industries like healthcare and financial services where many AI tools get blocked at procurement. Deployment options include cloud, virtual private cloud, and fully on premises installations. For organizations that can't have data leaving their infrastructure due to regulatory requirements or internal policy, the on premises option means they can still use AI agents without compromising their security posture. The platform also provides audit trails for agent actions, making it possible to demonstrate compliance and trace decisions back to their inputs.
The target audience is clearly enterprise IT and architecture teams, though the actual builders often come from business units once the platform is deployed. The platform positions itself as a way to shift from bottlenecked AI projects that require specialized experts to a citizen developer model where business teams can build their own solutions with appropriate guardrails. Use cases span legal contract review, financial analysis, compliance monitoring, customer service automation, internal knowledge management, and HR process automation. The company highlights customers across industries who've deployed agents handling thousands of runs per month, though specific case studies and metrics vary.
Pricing follows a freemium model with a significant jump to enterprise tiers. The free tier includes 500 runs per month, two projects, and one seat, with community support through Discord. It's enough for teams to prototype workflows and validate ideas before committing budget. The enterprise tier is custom priced and unlocks unlimited projects, custom run volumes, dedicated solution engineers, priority support, and the advanced security features that regulated industries require. There's no published mid tier pricing, suggesting the platform is optimized for either individual experimentation or full enterprise deployments rather than small team use cases. This pricing structure reflects the typical enterprise sales motion: free for proof of concept, then a larger contract once value is demonstrated.
Stack AI sits in a growing category of no code AI platforms, but it distinguishes itself through enterprise governance and the breadth of its integration library. Competitors often focus on either ease of use for small teams or enterprise security, rarely both. For organizations that have been watching AI capabilities evolve but struggling to implement them safely at scale, Stack AI offers a path that doesn't require hiring machine learning teams or compromising on compliance requirements. The platform continues to add integrations and capabilities, positioning itself as a foundational layer for enterprise AI rather than a point solution for specific use cases.
Key Features
- Drag-and-drop visual builder for AI agents and multi-step workflows
- Model-agnostic across major LLM providers, swap models per step
- Over 100 integrations including Salesforce, SharePoint, and SAP
- One-click RAG pipelines to index and query internal documents
- Human-in-the-loop checkpoints and workflow-level guardrails
- SOC 2 Type II, HIPAA, GDPR, and ISO 27001 compliance with VPC and on-prem options
Pros & Cons
What we like
- Compliance and deployment options fit regulated industries like healthcare and finance
- No-code canvas puts agent building in reach of non-engineers
- Not locked to one AI vendor, so you can pick the best model per task
- Free plan lets teams prototype before committing to Enterprise
Room for improvement
- Beyond the free plan, real usage means custom Enterprise pricing and a sales call
- Free tier caps you at 500 runs a month, 2 projects, and a single seat
- Heavy enterprise focus can feel like overkill for small teams or solo builders
- Advanced governance, SSO, and on-prem are gated behind the Enterprise tier
Frequently Asked Questions
What is Stack AI?
How much does Stack AI cost?
Who is Stack AI best for?
What integrations does Stack AI support?
Best For
Featured in
Alternatives to Stack AI

Relevance AI
No-code platform for building AI agents and multi-agent teams that run sales, support, and ops tasks
Gumloop
No-code canvas for building AI agents and automated workflows by connecting drag-and-drop nodes
Dify
Open-source platform for building LLM apps and AI agents with visual workflows, RAG, and 100+ model providers
Flowise
Open-source low-code platform to build LLM apps and AI agents visually with drag-and-drop chatflows and agentflows
Reviews (12)
Solid daily driver
Stack AI has quietly become part of my daily flow. It does what it says, which is rarer than it should be. No regrets so far.
The kind of tool you forget you are paying for
Started using Stack AI casually, now it is pinned in my dock. I expected to churn off it in a week and I am still here. It earns its place in my stack.
Recommended without reservation
Onboarded the whole team to Stack AI in an afternoon. Got real value out of not locked to one ai vendor, so you can pick the best model per task.
Worth the price of admission
Hadn't planned on switching, but Stack AI was hard to ignore. What stands out is how it handles model-agnostic across major llm providers, swap models per step. Nothing flashy, it simply pulls its weight every day.
The kind of tool you forget you are paying for
Stack AI has quietly become part of my daily flow. What stands out is how it handles free plan lets teams prototype before committing to enterprise. Setup was painless and I was productive the same day.
It just works
Three months of Stack AI later, here is what holds up. Real selling point for me was not locked to one ai vendor, so you can pick the best model per task. Easy yes for anyone weighing the same trade offs.
Bought it for one feature, stayed for ten
Onboarded the whole team to Stack AI in an afternoon. Support actually answered when I had a question, which surprised me. Easy yes for anyone weighing the same trade offs.
Worth the price of admission
Found Stack AI on a Reddit thread and I am glad I clicked. Their take on no-code canvas puts agent building in reach of non-engineers is genuinely good. It has shaved real time off my week. Hard to imagine going back to my old setup.
It just works
Started using Stack AI casually, now it is pinned in my dock. What stands out is how it handles model-agnostic across major llm providers, swap models per step. Mostly using it for triaging and routing it or support tickets with agents. Easy yes for anyone weighing the same trade offs.
Solid but not perfect
Almost a year on Stack AI now, no plans to leave. The not locked to one ai vendor, so you can pick the best model per task is more useful than I expected. It has been a fit for standing up compliant ai workflows for finance and healthcare teams. My only gripe is advanced governance, sso, and on-prem are gated behind the enterprise tier. Worth the price for what I get out of it.
Best decision this quarter
Picked Stack AI for the price, stayed for the quality. Where it really wins is over 100 integrations including salesforce, sharepoint, and sap. Hard to imagine going back to my old setup.
Recommended without reservation
Found Stack AI on a Reddit thread and I am glad I clicked. The no-code canvas puts agent building in reach of non-engineers is more useful than I expected. It earns its place in my stack.
Badge builder
Add Stack AI to your website
Choose a badge style and size, preview it here, then copy the generated HTML. Badge images are self-contained SVGs and do not require an external script.
<a href="https://toolindex.net/tools/stack-ai?ref=badge" target="_blank" rel="noopener">
<img src="https://toolindex.net/badge/stack-ai/medium.svg" alt="Stack AI - Listed on Tool Index" width="180" height="50" />
</a> How to use the badge
- 1. Pick the style, size, and theme that fit your layout.
- 2. Copy the generated HTML from the code block.
- 3. Paste it into your footer, homepage, or press page.
Score badge available
Stack AI qualifies for the score and circle badges based on its current top-10 positionin AI Agents.
Badge clicks return visitors to this profile with a referral tag so the source remains identifiable.
Related Tools

OpenBenchmarks
Public, externally validated benchmarks that help agents pick SaaS APIs

Almanac
A hosted, source-cited wiki that turns your files into context your AI agents can use

Wizard
Self-extending Rust terminal AI agent that works with any model

Chariot
Elastic cloud infrastructure for deploying and scaling AI agent fleets with persistent storage
Work on Stack AI? Request listing access or correction