You shipped an AI feature. Three weeks later, a $4,000 bill shows up.
Stop guessing what
your AI costs.
Two lines of code. Real-time spend by model, feature, and user. Get alerted before your bill spirals.
See your AI costs in 2 minutesFree plan available · No credit card · 2-minute setup
Spend today
$24.18
+12%This month
$847.32
+34%Projected burn
$1,240
+18%LLM calls
94,201
+41%Daily spend
By model
Visibility
See where every dollar goes
Most teams find out about runaway LLM costs when the invoice arrives. LLMargus shows you in real time.
Live in 2 minutes
Init once, wrap your OpenAI or Anthropic client. Every call is tracked automatically — no interceptors, no proxies, zero setup overhead.
Know which feature ate $300 last month
Pass a feature or userId tag and see exactly which part of your product drives spend. Stop guessing, start cutting.
Daily trend, model breakdown, cost per call
A full picture of your LLM costs — updated live on every page load. No aggregation delays, no stale dashboards.
Control
Get alerted before it hurts
Set budgets, configure thresholds, and let LLMargus watch your spend while you focus on building.
Get a Slack ping before your bill hits $500
Set daily spend, monthly budget, or per-user spike thresholds. Email on Starter, Slack on Pro. Alerts fire before the damage is done.
One workspace, whole team
Invite engineers, share org-level API keys, and give everyone visibility into LLM costs — without sharing your OpenAI credentials.
Export 100,000 events to CSV in one click
Raw event export for deeper analysis in your BI tool. Every token, every call, every model — available on Pro and above.
Up and running in under 5 minutes
No agents, no HTTP proxies. The SDK wraps your client locally and ships events directly to LLMargus in the background.
Install the SDK
One package, zero peer dependencies, TypeScript-first.
npm install llmargus
Init once, wrap your client
Call init() with your API key, then wrap your OpenAI or Anthropic client. Supports Vercel AI SDK too.
llmargus.init({ apiKey: "llm_..." })
const openai = llmargus.wrap(new OpenAI(), { feature: "chat" })Open the dashboard
Costs, models, features, and alerts — all in one place, updating live as events flow in.
llmargus.io/{your-workspace}What developers say after their first bill shock
Real feedback from teams using LLMargus in production.
“I was spending $800/month on GPT-4 and had no idea which feature was burning it. LLMargus showed me in 5 minutes — it was my email summarizer running on every login.”
Alex T.
Indie hacker
“We got a $3,200 OpenAI bill and had zero visibility. Integrated LLMargus in a morning. Now I get a Slack alert before we hit 80% of our budget. Never again.”
Sarah M.
CTO, early-stage startup
“The per-user breakdown is what got me. Turns out one power user was responsible for 40% of our entire LLM spend. We added rate limits that same day.”
James K.
Backend engineer
Simple, transparent pricing
Start free, upgrade when you grow. All paid plans include $0.50 per 1,000 calls overage beyond your monthly limit.
Free
For side projects and evaluation.
- Real-time dashboard
- Model & feature breakdown
- Community support
Starter
For indie developers shipping AI apps.
- Everything in Free
- Email alerts
- Email support
Pro
For teams with serious LLM usage.
- Everything in Starter
- Email + Slack alerts
- Priority email support
Team
For larger teams that need more control.
- Everything in Pro
- Custom alert rules
- CSV export
- Priority support
Enterprise
$999+ / moCustom call volume, unlimited users, custom retention, SSO (SAML/OIDC), RBAC, audit logs, SOC 2 Type II, invoice billing, API access, and a dedicated Slack channel.
Your next AI bill shouldn't be a surprise.
Free to start. No credit card. Takes 2 minutes to integrate.
See your AI costs in 2 minutesUsed by developers who got burned at least once 🙃