# noburn.dev

> Stop burning money on AI. Pre-flight LLM cost enforcement and automated Stripe passthrough billing for AI SaaS products.

noburn.dev is a hosted SaaS gateway that enforces per-customer LLM spending limits before API calls are sent (pre-flight blocking), and automatically invoices end-users via Stripe based on their actual LLM consumption tracked per `end_user_id`.

**Key differentiators:**
- Pre-flight blocking: estimates cost before the call fires, rejects if it would exceed the user's budget — no tokens consumed, no charge incurred
- Passthrough billing: native Stripe integration generates invoices per end-user automatically
- No infrastructure to run: hosted SaaS, not self-hosted

**Pricing:** Free (50k req/mo) · $9/mo Early Bird · $49/mo Pro

## Blog

- [LiteLLM Alternatives in 2026: What Production Teams Are Actually Using](https://noburn.dev/blog/litellm-alternatives-2026): Compares five LiteLLM alternatives — Portkey, Helicone, Bifrost by Maxim AI, TensorZero, and noburn.dev — with verified pricing, feature comparison table, and FAQ. Covers the March 2026 LiteLLM supply chain attack (CVE-2026-33634, versions 1.82.7/1.82.8), Helicone's maintenance mode post-Mintlify acquisition, and Portkey's acquisition by Palo Alto Networks (April 30, 2026).
- [Why LLM Cost Control Matters](https://noburn.dev/blog/why-llm-cost-control-matters): Explains the architectural difference between LLM observability (visibility after the fact) and pre-flight enforcement (blocking before tokens are sent), and why cumulative budget enforcement still allows the call that crosses the threshold.

## Documentation

- [Getting Started](https://noburn.dev/docs): Quick start integration guide for the noburn.dev SDK.
- [SDK Reference](https://noburn.dev/docs/sdk-reference): Full SDK API reference with all methods and parameters.
- [API Reference](https://noburn.dev/docs/api-reference): REST API documentation for direct HTTP integration.
- [Webhooks](https://noburn.dev/docs/webhooks): Webhook event reference for spend alerts and budget threshold notifications.