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Welcome to apilens

apilens is a modern, open-source observability platform designed to help you monitor, debug, and optimize your APIs. Built with scalability and developer experience in mind.

Quick Start

Get up and running in under 5 minutes

Self-Hosting

Deploy on your own infrastructure

API Reference

Explore our REST API

Guides

Learn best practices

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What is apilens?

apilens provides comprehensive API observability through three pillars:
Collect and visualize time-series metrics from your APIs. Track response times, error rates, throughput, and custom business metrics.
Aggregate and search through structured logs from all your services. Find issues quickly with powerful full-text search.
Understand request flows across distributed systems with distributed tracing. Identify bottlenecks and debug issues faster.

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Key Features

  • Multi-tenant Architecture - Secure data isolation for teams and organizations
  • Real-time Dashboards - Live metrics visualization with customizable charts
  • Smart Alerting - Get notified when metrics cross thresholds
  • High Performance - Built on ClickHouse for blazing fast queries
  • Self-Hosted Option - Run on your own infrastructure with full control
  • Open Source - MIT licensed, community-driven development

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Architecture Overview

┌─────────────────────────────────────────────────────────────┐
│                      Your Applications                       │
│              (Send telemetry data via SDK/API)               │
└─────────────────────────┬───────────────────────────────────┘
                          │
                          ▼
┌─────────────────────────────────────────────────────────────┐
│                     apilens Platform                       │
├──────────────┬──────────────┬──────────────┬────────────────┤
│   Metrics    │     Logs     │    Traces    │   Dashboards   │
│   Ingestion  │   Ingestion  │   Ingestion  │   & Alerts     │
└──────────────┴──────────────┴──────────────┴────────────────┘
                          │
                          ▼
┌─────────────────────────────────────────────────────────────┐
│                    ClickHouse Storage                        │
│              (High-performance analytics DB)                 │
└─────────────────────────────────────────────────────────────┘

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Getting Started

1

Sign Up or Self-Host

Create an account at app.apilens.in or deploy on your own infrastructure.
2

Get Your API Key

Generate an API key from your dashboard to authenticate requests.
3

Instrument Your App

Use our SDKs or send data directly via the REST API.
4

Explore Your Data

View metrics, search logs, and trace requests in the dashboard.

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Need Help?

Discord Community

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GitHub Issues

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