Generate framework-specific API error handling code, including middleware, custom error classes, HTTP status codes, and wrappers for catching rejected promises. Examples cover Express, Fastify, Next.js API routes, and Koa; Node.js 18+ and an OpenAI API key are listed requirements.
Generate error handling middleware for any framework. Use when setting up API error handling.
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See how to installReview the instructions the agent will receive before you install.
Good error handling means custom error classes, proper status codes, and consistent response shapes. This tool generates all of it for your framework.
One command. Zero config. Just works.
npx ai-error-handler express
# Express middleware
npx ai-error-handler express
# Fastify in JavaScript
npx ai-error-handler fastify -l javascript
# Next.js API routes
npx ai-error-handler nextjs -o lib/errors.ts
# Koa
npx ai-error-handler koa
This is one of 110+ free developer tools built by LXGIC Studios. No paywalls, no sign-ups, no API keys on free tiers. Just tools that work.
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No install needed. Just run with npx. Node.js 18+ recommended. Needs OPENAI_API_KEY environment variable.
npx ai-error-handler --help
Generates framework-specific error handling code including custom error classes, middleware, and async wrappers. The output follows best practices for each framework.
MIT. Free forever. Use it however you want.
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