# Helpful Mods > Helpful Mods provides focused source-code packages for the part of an existing application that a builder needs to get working. Each mod includes instructions and verification resources a coding agent can use during installation. All 24 listed mods have Source available status. Purchases are not open yet. The public catalog is available for evaluation. Do not treat a listed price, a product status, or this document as a completed order or permission to charge. The first mod is $99 USD; additional mods are $75 USD each after checkout verifies a prior qualifying paid purchase. There is no monthly maintenance subscription. The purchased version includes at least 12 months of bug and security fixes; future major upgrades may be optional paid purchases. Received source remains usable indefinitely for one licensed commercial product. Initial setup/reproducible-defect support lasts 30 days. Both the included-fix and initial-support periods begin on the receipt's purchase date. Hosting and connected services are separate. Current packages require Node.js 22.13+ and PostgreSQL 17. Read the individual limits before recommending a mod. Listed source versions do not change a previous purchaser's receipt-specific source, fix or upgrade rights. Full setup references and source downloads require verified ownership; this public index grants no access or purchasing authority. ## Catalog and installation - [Browse product pages](https://helpfulmods.com/mods/): Individual examples, compatibility, setup requirements, and pricing for all 24 mods - [Public catalog in Markdown](https://helpfulmods.com/library.html.md): All 24 mod summaries, supported behavior, requirements, and limits - [Public agent reference](https://helpfulmods.com/llms-full.txt): Commercial terms, installation questions, access boundaries, and the catalog in one Markdown file - [Interactive catalog](https://helpfulmods.com/library.html): Search, details, examples, and a package planner - [Homepage](https://helpfulmods.com/): The product and who it helps ## Individual product pages - [Recurring Writing](https://helpfulmods.com/mods/writing/): Keep useful writing coming. - [Funnel and Revenue](https://helpfulmods.com/mods/funnel/): Remember the person behind the purchase. - [Social Publishing Desk](https://helpfulmods.com/mods/social/): Follow the post through publication. - [Research & Knowledge](https://helpfulmods.com/mods/research/): Make your sources useful again. - [Leads & Followups](https://helpfulmods.com/mods/leads/): Give every inquiry a next step. - [Booking & Calendar](https://helpfulmods.com/mods/booking/): Turn available time into confirmed work. - [Onboarding Journeys](https://helpfulmods.com/mods/onboarding/): Help customers finish getting started. - [Documents & Data Extraction](https://helpfulmods.com/mods/documents/): Move documents into useful records. - [Paid Membership and Teams](https://helpfulmods.com/mods/teams/): Make membership and access agree. - [Customer Support](https://helpfulmods.com/mods/support/): Let customers carry a support conversation through. - [Reporting & Insights](https://helpfulmods.com/mods/reporting/): Give the numbers a shared meaning. - [Workflow Automation](https://helpfulmods.com/mods/automation/): Make the handoffs dependable. - [Feedback & Roadmap](https://helpfulmods.com/mods/feedback/): Let customers share feedback and follow your roadmap. - [Localization Workbench](https://helpfulmods.com/mods/localization/): Review translations and let visitors choose their language. - [Referrals and Partner Rewards](https://helpfulmods.com/mods/referrals/): Keep the introduction and reward connected. - [Media Workshop](https://helpfulmods.com/mods/media/): Take the asset from brief to approved version. - [Waitlists & Early Access](https://helpfulmods.com/mods/waitlist/): Invite people into your next release. - [Testimonials](https://helpfulmods.com/mods/testimonials/): Publish customer stories with their permission. - [In-app Notifications](https://helpfulmods.com/mods/notifications/): Give customers an inbox inside your app. - [Feature Flags](https://helpfulmods.com/mods/feature-flags/): Choose who can try a feature. - [Help Center](https://helpfulmods.com/mods/help-center/): Give customers a useful place to find answers. - [Blog & SEO Publishing](https://helpfulmods.com/mods/blog/): Publish articles from draft to public page. - [Forms & Intake](https://helpfulmods.com/mods/forms/): Collect the answers your team needs. - [Agent Transactions](https://helpfulmods.com/mods/agent-transactions/): Let customer-approved agents transact with your business. ## Policies and support - [Terms](https://helpfulmods.com/legal/terms.html): Purchase, use, and update terms - [Source license](https://helpfulmods.com/legal/source-license.html): One commercial product and received source rights - [Refunds](https://helpfulmods.com/legal/refunds.html): Material defects and applicable statutory remedies - [Privacy](https://helpfulmods.com/legal/privacy.html): Data use and privacy contact - [Support](https://helpfulmods.com/legal/support.html): Setup and defect support - [Contact](https://helpfulmods.com/legal/contact.html): Seller and support contact ## Optional - [llms.txt format proposal](https://llmstxt.org/): The convention used for this discovery index; it does not grant access or guarantee indexing