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Welcome to Limitry API

Limitry API provides usage metering, quota management, and analytics for LLM and AI applications. Track usage events, enforce quotas and rate limits, and get detailed insights into your customers’ consumption patterns. The API is designed to help you build usage-based pricing, implement fair usage policies, and monitor your AI infrastructure costs.

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Key Features

  • Event Tracking: Record usage events with detailed metadata (tokens, costs, latency)
  • Quota Management: Set and enforce usage quotas with flexible dimension filters
  • Rate Limiting: Configure rate limits to prevent abuse and manage traffic
  • Analytics: Get aggregated usage metrics, breakdowns, and timeseries data
  • Alerts: Set up webhook alerts when quotas reach threshold levels

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Authentication

All API requests require authentication using a Project API Key passed in the Authorization header. 
Authorization: Bearer limitry_sk_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

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Getting Your API Key

  1. Sign in to the Limitry Dashboard
  2. Navigate to your project settings
  3. Copy your Project API Key from the API Keys section

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Base URL

All API requests should be made to: 
https://api.limitry.com/v1

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SDKs

Python

Official Python SDK

TypeScript

Official TypeScript SDK