Burn less tokens.
Build more value.
3–5% of LLM streams drop before they finish — wasting output tokens, triggering full-context retries, and costing your team real money. NoBurn buffers every stream server-side so your clients reconnect instantly and never miss a token.
Drop-in proxy for any streaming LLM
Delivery Patterns
Three patterns. Pick what fits.
Stream
Server-Sent Events
Real-time token-by-token delivery, just like connecting directly. If the client disconnects, reconnect and resume from the last chunk the upstream already sent.
Best for: chat UIs, real-time displays
Poll
HTTP GET
No persistent connection needed. Submit a job, check back when you're ready. The full response is waiting. Simple as a GET request.
Best for: serverless, mobile, batch jobs
Webhook
Callback URL
Fire and forget. Pass a callback URL and NoBurn will POST the completed response to you. HMAC-signed with automatic retries.
Best for: async pipelines, event-driven apps
Durable
Every chunk persisted to disk. Jobs survive restarts and deploys.
Any provider
Format-agnostic. Works with any HTTP SSE streaming endpoint.
Metered
Per-customer usage tracking. Plug into Stripe or Metronome.
Observable
Real-time dashboard. Monitor jobs, browse history, replay streams.
Without NoBurn
Dropped connections burn tokens
Your users are on phones, flaky WiFi, and spotty connections. The LLM doesn't care — it keeps generating whether anyone's listening or not.
Phone switches networks mid-stream
WiFi to cellular, VPN reconnect, laptop lid close. The connection dies but the LLM keeps generating. You paid for tokens nobody sees.
Your app retries the whole request
Same prompt, same context, full price again. Input tokens aren't refunded — you pay twice for the same generation. At scale, teams waste $500–$10,000+/mo on drops alone. See the math.
Users blame your app, not their network
Broken streams feel broken. Building reconnect logic, buffering infrastructure, and stream recovery is a whole engineering project you shouldn't have to own.
With NoBurn
Your client drops. The stream doesn't.
NoBurn sits between your client and the LLM. The upstream connection stays open regardless of what happens on the client side.
Swap the hostname, keep everything else
Replace api.openai.com with <id>.noburn.io — same path, same auth headers, same body, same SDK. NoBurn proxies it and buffers everything the upstream returns.
Client reconnects, picks up where it left off
NoBurn persists every chunk the upstream delivers. If the client drops, reconnect and resume from where you left off. No re-prompting what was already generated.
Stream, poll, or get a callback
Consume the response however you want — real-time SSE stream, simple GET poll, or a webhook when it's done. One proxy, three patterns.
Built for Teams
One change, infinite impact.
Multi-tenant from day one. Per-customer keys, usage metering, and an admin dashboard your ops team will actually use.
Tenant isolation
Each customer gets their own API key with scoped access. Usage is tracked and billed per tenant. One deployment, many customers.
Hashed auth
API keys are SHA-256 hashed at rest. Rate limiting at the edge. Admin endpoints are network-isolated and never publicly exposed.
Zero-downtime deploys
Rolling deployments with graceful drain. Active streams finish uninterrupted. Your users don't notice when you ship.
Job persistence
Completed jobs survive process restarts, machine reboots, and deployments. Configurable TTL from hours to 30 days.
Admin dashboard
Watch jobs stream in real-time. Browse the archive. Replay any session end-to-end. Internal-only access.
Billing-ready metering
Usage events batched and reported with customer ID mapping. Plug directly into Stripe or Metronome for automated billing.
Pricing
Simple, transparent pricing that scales with you.
Pick a plan when you're ready. Upgrade as you grow.
Start with a 7-day free trial — no credit card required
5K sessions · 1 endpoint · Full access
Start Free TrialScale
150K sessions/mo
- 5 endpoints
- Webhook delivery
- Team members (10)
- Custom rate limits
Production
1M sessions/mo
- Unlimited endpoints
- Webhook delivery
- Unlimited team members
- Custom rate limits
- SLA guarantee
Enterprise
Unlimited sessions/mo
- Everything in Production
- Dedicated infrastructure
- SSO / SAML
Stop paying twice for the same answer.
Every dropped stream is wasted tokens, a full-context retry, and lost developer time. Teams using NoBurn see 5–20x return on what they pay us. One URL change is all it takes.