Express middleware to validate request (headers, params, query, body) using Joi

Reconstruct the original URL used in an HTTP request based on the HTTP request headers

Express middleware to validate request (headers, params, query, body) using Zod

Agent identification from request headers: Accept negotiation, Web Bot Auth signals, protocol routes, UA heuristics. Pure compute, zero runtime dependencies.

Per-provider request headers in the DeepSeek Harness Models settings page, with per-conversation ${sessionId} expansion.

Rewrite outbound HTTP request headers (User-Agent, custom) for any dsh provider/gateway request, with optional prefix/regex rules.

Hand-declared pi-ai LLM routes for DeepSeek Harness whose configured request headers reach the wire, including the ones the harness reserves

A lightweight isomorphic module to generate request headers that fulfill the AWS SigV4 signing process

Directus extension that automatically sets the language field during user registration based on HTTP request headers

`@chenshunyu/proxy` is a lightweight HTTP proxy server designed to help developers easily modify HTTP request headers for testing and debugging network requests.

Per-model custom request headers: inject headers into LLM requests matched by model-name wildcard; values support fixed strings and the ${sessionId} variable. Managed from a settings-page UI.

Set/Append headers to request.

A light-weight module that brings Fetch API to node.js

Extended TIE Client that accepts additional custom request headers

HTTP server mocking and expectations library for Node.js

Express middleware that will do a 301 redirect if the Elastic Load Balancer adds a x-forwarded-proto=http to the request headers

n8n MCP Server Trigger variant that injects X-MCP-* request headers into tool-call arguments.

Microsoft Azure SDK for JavaScript - Logger

OpenCode plugin that reports Claude Code-style context (environment, scratchpad, git status) as x-hermes-* request headers for gateway-side injection

Set `fetish` default request headers