LLM Observability & Router Platform

Sell developers a unified LLM router, logging and monitoring layer so they can ship AI apps without rebuilding infra.

In plain English

People building AI apps can send requests through one shared door that reaches many AI services, and keep a record of cost, speed, and failures. A free plan starts them with a limit on how much is recorded. Team and company plans remove that limit and add a simpler sign-in for a whole company. They pay because building that record-keeping again for every app is a project by itself. The AI handles a large share of passing requests along, keeping the records, and the billing, while the people running the product still do a lot: connecting new AI services, talking with builders, and selling to larger companies.

Automation70%

Startup costNot disclosed

Time to first $Weeks (operator: MVP in ~1 week, first customer in ~3 weeks)

Monthly range*$92,000 /mo

$92K/mo (Starter Story, Feb 2025, self-reported)

DifficultyHard

SourceStarter Story — Keywords AI ↗

Operator: Andy Li and Raymond Huang

Operator-Reported

A named, real operator ran this and shared results publicly. The figures are their own.

Not disclosed.

The tool stack

OpenAI API ↗

Pay per token

Routed model traffic

Stripe ↗

2.9% + 30¢

Billing

Vercel ↗

Hobby free; Pro paid

App hosting (operator used Next.js)

Prices are the vendors' published list prices as researched in Oct 2026 and change often — always check the vendor's pricing page.

Step-by-step setup

Ship a two-line SDK that proxies many LLM providers with logging.
Add dashboards for cost, latency and failures; free tier with log limits.
Grow via Discord for AI builders, YC network and developer Twitter.
Upsell Team/Enterprise for unlimited logs and SSO.

What's automated vs. the human 30%

The machine does

Routing and logging
Billing

You still do

Provider integrations
Developer community
Enterprise sales

Overview

Sell developers a unified LLM router, logging and monitoring layer so they can ship AI apps without rebuilding infra. Operators: Andy Li and Raymond Huang (Keywords AI; YC-affiliated).

Realistic income

Starter Story (Feb 14, 2025): about $92K/month (~$1.1M ARR), profitable, ~4 employees. Self-reported interview figures, not TrustMRR Stripe-verified. This is one team’s result and doesn’t predict yours.

Risks

Helicone, LangSmith and provider-native dashboards compete hard on the same job.
You sit in the request path; outages become your customers’ outages.
Price pressure as open-source gateways improve.

*Income figures are illustrative ranges based on public pricing and typical outcomes reported by practitioners, not guarantees. Most new online businesses earn little or nothing at first. Not financial, legal or tax advice.