Tanso — Free margin analytics for AI SaaS

Tanso is a monetization platform for B2B SaaS with runtime entitlement enforcement. See profitability by feature and customer, then enforce limits when you're ready.

Products

Observe — AI Cost Observability

Track LLM costs per customer and feature. Per-feature margin analysis, cost alerts, and Stripe/OpenAI/Anthropic integrations.

Tier	Price	Events/month
Free	$0	10,000
Pro	$29/mo	100,000
Team	$99/mo	1,000,000

Start free

Tanso Platform — Billing & Entitlement Enforcement

Runtime entitlement enforcement, pricing management, usage limits, credits, invoicing, and Stripe billing sync. Check access before requests run. Denied requests never hit your compute. MCP server for AI agent integration. Custom pricing.

Contact us | Quickstart Guide

API Quickstart

Three calls to go live: get your API key, create a customer, check an entitlement. Full quickstart guide. Sandbox available at sandbox.api.tansohq.com.

Developer Resources

• OpenAPI Spec (Platform)
• OpenAPI Spec (Observe)
• LLM Context (llms.txt)
• MCP Tool Reference (34 tools)
• Agent Authentication Guide
• TypeScript SDK

Free Tools

• Margin Analyzer — Calculate per-customer gross margin for AI SaaS
• AI Pricing Finder — Research how AI companies price their products
• Data Lab — Query pricing data for 146 SaaS companies via MCP

FAQ

How much does Observe cost?

Free tier is free forever. Pro is $29/mo, Team is $99/mo.

How much does the Platform cost?

Custom pricing. Contact us for details.

How long does integration take?

Most teams are billing in a day. One API call for entitlement checks, one for usage events.

Do I need a credit card?

No. Sign up for Observe Free with no credit card.

We already use Stripe. Why Tanso?

Stripe handles payment collection. Tanso handles everything upstream: entitlements, usage limits, margins, and invoicing.

Company

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