# httl.dev > AI-optimized mirror of httl.dev containing 22 pages totalling 4,360 words of clean markdown content, structured data, and semantic HTML. Original source: https://httl.dev/. Last updated: 2026-05-01T18:16:08.105Z. Each page is available as HTML (with JSON-LD structured data) and Markdown (text-only, ideal for LLMs and RAG). ## Homepage - [First HTTP programming language](/site-root.html): HTTP programming language, simplify HTTP calls, lightweight HTTP tools, HTTL language, REST client, HTTP client, HTTP request, HTTP response, HTTP headers, HTTP status code, HTTP methods, HTTP status codes, HTTP headers, HTTP request headers, HTTP response headers, HTTP request methods, HTTP response status codes (25 words) ## Articles & Blog Posts - [Request](/docs/guide/request/index.html) (969 words) - [Module System](/docs/guide/module/index.html) (499 words) - [Directives](/docs/guide/directives/index.html) (179 words) - [Release Notes](/docs/release-notes/index.html) (203 words) - [Headers in HTTL](/docs/guide/header/index.html) (185 words) - [Run a query from the command line](/docs/cli/request/index.html) (239 words) - [OpenAPI](/docs/guide/openapi/index.html) (173 words) - [Variables](/docs/guide/variables/index.html) (162 words) - [HTTL PROJECT](/docs/httl-project/index.html) (225 words) - [Testing](/docs/guide/testing/index.html) (119 words) - [Installation](/docs/introduction/installation/index.html) (224 words) - [What was the motivation behind creating HTTL?](/docs/introduction/why/index.html) (318 words) - [URL](/docs/guide/url/index.html) (126 words) - [HTTL CLI](/docs/cli/index.html) (141 words) - [Comments](/docs/guide/comments/index.html) (48 words) - [Feedback & Contributing](/docs/introduction/contributing/index.html) (85 words) - [Run a HTTL file](/docs/cli/file/index.html) (70 words) - [Environment Variables](/docs/guide/env-vars/index.html) (31 words) - [The Basics](/docs/guide/index.html) (194 words) - [What is HTTL?](/docs/index.html) (121 words) - [Reimagine Your API Projects with HTTL & Copilot](/vscode/index.html): HTTP programming language, simplify HTTP calls, lightweight HTTP tools, HTTL language, REST client, HTTP client, HTTP request, HTTP response, HTTP headers, HTTP status code, HTTP methods, HTTP status codes, HTTP headers, HTTP request headers, HTTP response headers, HTTP request methods, HTTP response status codes (24 words) ## Resources - [Full Page Index](/index.html): Browse all cached pages with rich metadata - [About This Cache](/content/about.html): Methodology, technical details, and usage guidelines - [XML Sitemap](/content/sitemap.xml): Machine-readable sitemap for crawler discovery - [Robots.txt](/content/robots.txt): Crawler directives