Authentication and account components
Provides sign-up, login, logout, user profile, and security components, with multifactor authentication, SMS and email passcodes, and social SSO options.
tiun
Freemium
tiun is a backend platform for SaaS and AI companies that combines authentication, payments, customer data, and analytics in one system. It also acts as Merchant of Record for software sales, handling tax compliance, invoices, chargebacks, and payouts.
What is tiun?
tiun is a commercial backend for SaaS and AI companies. It combines authentication, payments, customer data, and analytics in one system, so teams can work with users, subscriptions, transactions, sessions, and product activity through a consistent platform rather than maintaining separate synchronization logic.
The platform covers both product infrastructure and the operational side of selling software. It provides authentication flows, billing models, checkout, customer self-service, event tracking, and data access. As Merchant of Record, tiun also handles stated tax, invoicing, chargeback, and payout responsibilities for software transactions.
What can tiun do?
Flexible billing and checkout
Supports one-time payments, subscriptions, and usage-based billing. Prebuilt checkout components render as overlays so users can complete payment without leaving the product.
Merchant of Record operations
tiun acts as the legal seller for software transactions and states that it handles tax calculation and remittance, EU B2B reverse charge, compliant invoices, chargebacks, and payouts.
Customer data and self-service
Stores user, subscription, transaction, and session data together. Customers can manage plans, payment methods, invoices, receipts, and subscription changes through a self-serve portal.
Product activity and analytics
Tracks logins, purchases, sessions, and product interactions at the profile level. The platform includes data exports and a basic analytics dashboard, with AI-native analytics available as an add-on.
Agent and SDK integration
Teams can install tiun skills and connect its MCP server through supported AI coding agents, or use the JavaScript SDK and documented API for a manual integration.
Use Cases
“Launch a paid SaaS product”
A founder or small engineering team can add authentication, plans, checkout, and a customer portal without separately wiring an auth provider, payment processor, and subscription database.
“Bill for AI or metered usage”
An AI product can use usage-based billing alongside one-time or recurring charges, while keeping subscription state and customer activity available through the same backend.
“Sell software internationally”
A software business that sells across jurisdictions can use tiun as Merchant of Record for stated tax calculation, tax remittance, compliant invoices, chargebacks, and payouts.
“Give customers billing control”
A SaaS team can let end users upgrade, downgrade, or cancel plans, review invoice history, and manage payment methods through the hosted self-serve portal.
“Connect product data to analysis”
Business, product, engineering, and marketing teams can use shared customer, transaction, session, and event data to examine sign-ups, payments, usage, and product value.
Frequently Asked Questions
How can a team integrate tiun?
The recommended agent workflow is to run `npx skills add https://mcp.tiun.business` and authorize the MCP connection. The site also documents a manual JavaScript integration using `npm install @tiun/sdk`, along with API and framework examples.
What billing models does tiun support?
The pricing and product pages list one-time payments, subscription payments, and usage-based billing. The platform also includes product and billing plan management, checkout, invoicing, and customer self-service.
What does tiun handle as Merchant of Record?
tiun states that it is the legal seller to the customer and handles tax calculation at checkout, VAT, GST and sales-tax collection and remittance, EU B2B reverse charge, compliant invoices, chargebacks, and payouts.
Can customers manage their own subscriptions?
Yes. The self-serve portal lets customers manage plans, payment methods, invoice history, and receipts. The site also states that users can upgrade, downgrade, or cancel directly.
Is there a way to integrate without an AI coding agent?
Yes. In addition to the MCP and skills workflow, tiun provides a JavaScript SDK installed with `npm install @tiun/sdk` and documents API endpoints, examples, and sandbox testing.
Quick Facts
- Product type
- Commercial backend for SaaS and AI companies
- Core modules
- Authentication, payments, customer database, and analytics
- Integration workflow
- MCP and skills for AI coding agents; JavaScript SDK for manual integration
- Merchant of Record
- Handles stated tax, invoicing, chargeback, and payout operations
- Hosting and compliance
- Hosted in Europe; GDPR compliant
- Operator
- TIUN AG, Zurich
tiun Traffic Analysis
Traffic data is for reference only.
- Domain Rating
- 34
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