API-DNA Blog

Guides and insights on API fraud detection, model verification, and token auditing.

API Monitoring Tools Comparison — Free vs Paid in 2026

Compare the best API monitoring tools for LLM endpoints. Free and paid options for uptime, health checks, and fraud detection.

OpenAI API Checker Alternatives — Best Tools Compared 2026

Compare the top OpenAI API checker tools. Free options that detect fake models and go beyond basic key validation.

Fake API Detection Tool — Identify Relay Chains & Model Spoofing

How fake API providers operate and how to detect model substitution, relay chains, and token inflation with a free tool.

How to Test If Your API Key Works — Free Online Checker 2026

Step-by-step guide to testing API keys for OpenAI, Anthropic, Google Gemini, Zhipu, and more.

OpenAI API Key Validator — Free Tool to Check If Your Key Works

Validate your OpenAI API key in seconds. Free tool that checks key status, model access, and provider authenticity.

Best API Checker Tools in 2026: Verify Your LLM API Endpoints

Compare the top tools for detecting fake LLM models, token inflation, and API fraud.

How to Detect Fake API Providers: A Complete Guide

Practical methods to identify model substitution, token inflation, and relay chains.

OpenAI API Key Checker: How to Verify Your API Provider

Complete guide to checking if your OpenAI API key is connected to a real provider or a fake relay.

Anthropic API Key Checker: Verify Claude Model Authenticity

How to check if your Anthropic API key actually connects to Claude or a cheaper substitute.

API Token Inflation Detector: Stop Paying for Fake Tokens

How to detect token count fraud in LLM API providers and stop overpaying.

Fake LLM Detector: How to Identify Counterfeit AI Models

Learn how to detect when your LLM API provider is serving a fake model.

API Relay Scanner: Detect Middlemen in Your API Pipeline

How to scan your API endpoint for relay servers and data interception.

API Provider Verification: Is Your Provider Legitimate?

A complete checklist for verifying API provider authenticity.

How to Detect If Your LLM API Is Fake

Learn how to identify API fraud — model substitution, token inflation, and relay scams.

Token Inflation Explained

Understanding how API providers inflate token counts and how to detect it.

API Relay Detection

How to detect if your API requests are being intercepted by relay servers.