How do most AI SaaS tools charge (credits vs monthly subscriptions)?

Most modern AI SaaS tools use hybrid pricing: an entry-level monthly subscription that includes a fixed monthly credit quota, paired with pay-as-you-go top-ups for high-volume LLM inference and generation.

Can I find free and open-source AI tools on SaaSearch?

Yes. You can filter listings by pricing model (Free, Freemium, or Paid) and tech stack. Many makers provide 100% free open-source tiers with self-hosting instructions and MIT licenses.

How are MRR and user counts verified for AI startups?

SaaSearch integrates directly with Stripe and Paddle telemetry to verify recurring monthly revenue, growth velocity, and active users, ensuring figures are authentic rather than estimated.

How can AI developers launch their product on SaaSearch?

Founders can submit their AI application for free. Once you add the verified SaaSearch launch badge to your homepage, your listing is published immediately to today's launch leaderboard with zero queue delay.

SaaSearch - The Search Engine for SaaS and AI products

35 products for Open source AI Assistants (0.04 seconds)

Pen

https://pen.dev›design & creative›Pen

Pen: An agentic canvas for building bold software. - result 1

Sep 17, 2026 - Pen is an innovative agentic canvas designed for rapidly building and prototyping software. It allows users to import components from any app,... Read more

1upvote

AI Design UI/UX Design Prototyping

0pen

Stan

https://stan.store›other›Stan

Stan enables people to make living and work for themselves. - result 2

May 15, 2026 - Stan enables people to make living and work for themselves. Built with Next.js, TypeScript and Tailwind CSS.

5.0(101)809upvotes$2.8M MRR−7.6% MoM

Micro-SaaS

101stan

Sail Research

https://sailresearch.com›ai & automation›Sail Research

Sail Research: Cost-efficient AI inference API for long-horizon agents. - result 3

Sep 21, 2026 - Sail Research provides a highly efficient and cost-effective API for running inference on leading open-source AI models. It specializes in... Read more

1upvote

AI Inference Large Language Models API Platform

0sailresearch

Giraffe

https://withgiraffe.com›ai & automation›Giraffe

Giraffe: Keep what you figure out with AI, organized by project. - result 4

Sep 15, 2026 - Giraffe is an AI memory and project management tool designed to capture and organize the valuable insights, decisions, and current truths... Read more

1upvote

AI Knowledge Management AI Workflow Project Management

0withgiraffe

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5.0(2)·1 upvote·2 comments
Radar
The missing open-source Kubernetes UI for humans and AI agents
5.0(2)·1 upvote·2 comments
thirds.ai
Beautiful, on-brand images and PDFs from templates you set up once
5.0(1)·1 upvote·1 comment

Tinfoil

https://tinfoil.sh›security & privacy›Tinfoil

Tinfoil: Verifiably private AI infrastructure and secure enclaves - result 5

Oct 3, 2026 - Tinfoil provides verifiably private AI solutions, enabling developers and users to run confidential LLMs, private chat assistants, and custom... Read more

5.0(1)1upvote

Confidential Computing Private AI TEE

1tinfoil

Open Caffeine

https://github.com›developer tools›Open Caffeine

Open Caffeine: Keep your Mac awake - result 6

Jun 1, 2026 - Open Caffeine is a native macOS menu bar app for keeping your Mac awake for a chosen duration. Pick presets, set a custom timer, toggle screen... Read more

5.0(17)164upvotes

Open Source

17github

OpenTweet

https://opentweet.com›ai & automation›OpenTweet

OpenTweet: AI-powered super simple X posts scheduler with MCP & OpenClaw integration. - result 7

May 15, 2026 - AI-powered super simple X posts scheduler with MCP & OpenClaw integration. Built with Next.js, TypeScript and Tailwind CSS.

5.0(14)112upvotes$3.3k MRR+0.3% MoM

AI & Automation Micro-SaaS

14opentweet

Pen: An agentic canvas for building bold software.

Pen is an innovative agentic canvas designed for rapidly building and prototyping software. It allows users to import components from any app, integrate with leading AI models like Claude and OpenAI, and leverage AI agents for direct design and illustration. With buttery-smooth WebGL performance, advanced features like shaders, UI libraries, and HTML/CSS/Tailwind export, Pen empowers developers and designers to create complex applications, mockups, and UI elements. It offers collaborative sharin...

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