Build SaaS with AI
10 Easy Micro-SaaS Ideas from Free Public APIs
A practical ranking of public API micro-SaaS ideas by monetization, programmatic SEO potential, and real utility.
16 min read
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AI-native builder operating system
Build lean SaaS workflows you can actually ship.
Follow the course, install the skill, run the workflow. Build Lean SaaS turns practical AI-native experiments into reusable systems for founders and builders.
Need this wired into your own stack? Pair with DevelopJoy.
Structured courses
Installable skills
Founder-friendly systems
workflow.log
$ read /courses/always-on-agents/x-api-bookmarks-linear-inbox
$ install skills/x/bookmark-capture-sync
Daily cron captures X bookmarks, dedupes locally, and creates Linear Triage issues for review.
1
Follow the course
Use a sequenced implementation path instead of scattered articles.
2
Install the artifact
Copy the skill, script, or template into your own builder stack.
3
Run the system
Use cron, agents, and Linear-style inboxes to make it repeatable.
Featured course
Start with the Always-On Agents course
Build the first practical agent workflow from VPS setup to X bookmark capture, Linear triage, and a daily review loop.
Course path
Always-On Agents
A public walkalong course for building always-on agent workflows: VPS, Codex, Hermes/OpenClaw, X bookmark capture, Linear triage, Shape Up task review, and content/release watchers.
01Set up the VPS and Codex foundationCreate the small Ubuntu server that will hold state, logs, skills, and scheduled workflows.02Prepare the server for Hermes/OpenClawUse Codex planning mode to shape directories, secrets, logs, and the service boundary.03Install Hermes/OpenClaw on the VPSTurn the prepared server into a concrete Hermes/OpenClaw runtime with service boundaries.04Connect Hermes to DiscordCreate a private Discord bot/channel boundary before the agent starts reviewing real work.05Capture X bookmarks into LinearInstall the bookmark capture skill and create raw Linear Triage issues from saved X posts.
Installable Skills
Small, open-source workflows that pair public instructions with source files you can copy into your own agent setup.
content
Release Source Capture
Free Codex/Hermes skill for monitoring GitHub releases and RSS feeds, deduping changes locally, and emitting JSON events for sourced research briefs.
Release NotesCodex SkillsHermes
implementationInstall skill
discord
Hermes Discord Control Channel
An installable Hermes/OpenClaw skill for wiring a private Discord channel to a narrow agent command surface before X bookmarks and Linear triage run.
DiscordHermesOpenClaw
implementationInstall skill
linear
Linear X Bookmark Agent Triage
An installable Hermes/Codex-style skill for reviewing Linear issues created by X Bookmark Capture Sync and turning each capture into a Shape Up Linear task.
LinearHermesCodex Skills
implementationInstall skill
Implementation Templates
Planning assets and checklists for turning the playbooks into tighter execution.
Template
AI SaaS MVP Scope Template
A scope template for AI-native SaaS MVPs: job to be done, inputs, guardrails, UX boundary, and launch criteria.
AI SaaSMVPTemplate
considerationUse template
Template
SaaS Implementation Checklist
A practical SaaS implementation checklist for pre-launch, rollout, onboarding, and post-launch review.
ChecklistSaaSImplementation
decisionUse template
Template
SaaS Implementation Plan Template
A fill-in-the-blank SaaS implementation plan template covering goals, scope, owners, milestones, launch gates, and post-launch metrics.
Implementation PlanSaaSTemplate
decisionUse template
DevelopJoy partnership
Learn the workflow here. Wire it into your real stack with DevelopJoy.
Build Lean SaaS publishes the courses, skills, and templates. DevelopJoy is the implementation layer when you want help connecting Codex, Claude, OpenClaw, Linear, cron, and your repo into a working operating loop.
Latest writing
Supporting notes, opinions, and SaaS implementation thinking
The blog stays useful, but courses, skills, and templates are the main implementation path.
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How to Build an AI SaaS MVP That People Will Actually Use
A founder-friendly guide to scoping an AI SaaS MVP, choosing the right workflow, adding guardrails, and charging for something more durable than a demo.
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Build SaaS with AI
How to Build Your First SaaS Without Wasting Months
A practical guide to validating a SaaS idea, scoping a small first release, and getting to the first paying customers without hiding behind code.
10 min read
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