Client SDK for connecting to **Agent-User Interaction (AG-UI) Protocol** servers.
http(s) proxy as connect middleware
Conditionally add a middleware to express with some common patterns.
Verdaccio Express Middleware
An error handler middleware for AWS http lambda functions.
A small toolset for streaming JSON-RPC data and matching requests and responses
This package provides the core HTTP request orchestration, response handling, and API call coordination.
Smart placeholder for missing assets
A local development tool for debugging and inspecting AI SDK applications. View LLM requests, responses, tool calls, and multi-step interactions in a web-based UI.
A development middleware for Rspack
OpenTelemetry middleware for Hono
Standard HTTP error class. Proper serialization, no bloat. Extensible.
An Error subclass that will chain nested Errors and dump nested stacktraces
Strict Content-Security-Policy (CSP) for Next.js with composable middleware
middleware to be set right after body parser in order to return 4xx error back to the client
Basic IP rate-limiting middleware for Express. Use to limit repeated requests to public APIs and/or endpoints such as password reset.
Recognizes certain classes of webpack errors and cleans, aggregates and prioritizes them to provide a better Developer Experience
A Browser gRPC library that is nice to you
Enables simple, yet robust handling of async action creators in Redux
A joi validation middleware for Express.
A plugin for ESLint that allows you to use project-specific rules
A drop-in replacement for fs, making various improvements.
Easy as cake e-mail sending from your Node.js applications
Ethereum RPC and Provider errors