LLMCap

What it does

A reverse proxy that enforces hard dollar caps on LLM API calls. Change one line (base_url), set a cap — when you hit it, the next request returns 429 before the token reaches the provider. Money never spent. → Anthropic, OpenAI, Gemini, Mistral, Cohere → <35ms added latency → Live spend dashboard, audit logs Starter $19/mo · Pro $49/mo · 3-day trial.

Stop surprise AI bills. LLMCap intercepts your LLM API calls and blocks requests the moment you hit your spending limit. Point your existing client at LLMCap and keep the rest of your code.

When you hit $50 , it stops. Not an alert — it stops . Point your existing client at LLMCap and keep the rest of your code. The live demo uses sample data — no account, API key, or provider credentials required. # Before client = Anthropic ( api_key = os . environ [ "ANTHROPIC_API_KEY" ]) # After — same client, one URL and one header client = Anthropic ( api_key = os . environ [ "ANTHROPIC_API_KEY" ], base_url = "https://proxy.llmcap.io/anthropic" , default_headers = { "X-LLMCap-Key" : os . environ [ "LLMCAP_KEY" ] } , ) # When you hit $50 → 429. No generation starts. LLMCAP_KEY is your LLMCap proxy key — you create it in the dashboard under Proxy Keys, it starts with tg_live_ , and it…from llmcap.io

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