The encrypted home for your AI API keys — 9 direct billing syncs, plus one OpenRouter key for 100+ models.
Sync live usage per provider, get budget alerts before your LLM bill lands — keys first, not another AWS dashboard.
Six layers of protection and visibility — from the moment you paste a key to the moment spend crosses a budget threshold. Built for LLM APIs, not cloud infrastructure dashboards.
9 direct billing syncs — plus OpenRouter for 100+ models
Keys are encrypted server-side with HKDF-derived secrets. We store ciphertext and a 4-character hint — never the full key. Decrypt only happens in memory during spend sync, then discarded.
Pull real spend from OpenAI, Anthropic, Groq, and more — per key, per provider. Not AWS Cost Explorer.
Set monthly limits per provider. Email when you hit 80%, 90%, or 100% — not after the invoice lands.
8 providers with live billing APIs, plus use openrouter when you want many models without vaulting a separate key for each provider.
UI shows last 4 chars only. Full keys never return to the browser after save.
Supabase Row Level Security on every table — your keys and spend data never cross accounts.
AES-256-GCM encryption with HKDF key derivation. Your keys are encrypted before they touch the database. We never see the plaintext — not in logs, not in memory, not in transit.
→ Learn more about our security modelPull real-time usage from OpenAI, Anthropic, Groq, Together, Fireworks, and more — or one OpenRouter key for 100+ models. Per-key, per-provider. Not AWS billing.
→ See supported providersSet monthly limits per provider. Get notified before you blow past your budget — not after the invoice arrives.
→ Configure alertsEvery key encrypted with AES-256-GCM before it touches the database. We store ciphertext only — built for developers who manage real LLM API keys, not read-only cloud billing connections.
Start free. Upgrade when your stack grows. Cancel anytime.
Whether you're opening your first API key or managing a multi-provider stack, LLM Locker meets you there.
You signed up for OpenAI or Claude and aren't sure where the key lives or what you're spending. Store it once, sync usage, and get warned before costs stack up.
You've been building with LLMs for a while — keys in env files, spend split across dashboards. One vault and one spend view instead of spreadsheet chaos.
Weekend prototypes and hackathon apps still need real key security. Start free, vault a few keys, and upgrade only when your stack grows.
OpenAI, Anthropic, Groq, Mistral, Together, Fireworks — plus OpenRouter when you want 100+ models on one key. Track spend per vault entry, set budgets, and stop hunting dashboards.
Sharing keys over Slack doesn't scale. Team plan gives you a shared vault, spend visibility, and access control as more people touch your AI stack.
You signed up for OpenAI or Claude and aren't sure where the key lives or what you're spending. Store it once, sync usage, and get warned before costs stack up.
You've been building with LLMs for a while — keys in env files, spend split across dashboards. One vault and one spend view instead of spreadsheet chaos.
Weekend prototypes and hackathon apps still need real key security. Start free, vault a few keys, and upgrade only when your stack grows.
OpenAI, Anthropic, Groq, Mistral, Together, Fireworks — plus OpenRouter when you want 100+ models on one key. Track spend per vault entry, set budgets, and stop hunting dashboards.
Sharing keys over Slack doesn't scale. Team plan gives you a shared vault, spend visibility, and access control as more people touch your AI stack.
Vault OpenAI and Anthropic keys in one place. Sync spend, set budgets, and ship without spreadsheet chaos — in under a minute.
Get started free