http-client

A tool for making HTTPS requests to web services and reading their responses. It supports request methods, headers, query parameters, request bodies, and readable text extraction from HTML pages.

In plain words
What is it for?
Use it to call APIs and webhooks, send JSON or form data, inspect response headers and bodies, or extract text from an HTML page.
Why use it?
It is useful when a single API call or page fetch is enough and you do not need a browser that renders JavaScript or performs clicks.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/fisker086/aiops/http_client
Any agent
npx skills add fisker086/AIOps --skill http_client
Clone the repo
git clone --depth 1 https://github.com/fisker086/AIOps

Made for: Claude Code, Codex.

Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 427 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00021 $0.00427
Opus 5 $0.00010 $0.00214
Sonnet 5 $0.00004 $0.00085
Haiku 4.5 $0.00002 $0.00043

Measured 2d ago against content hash 187432bc4fe0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

http-client scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

activation_keywords: [http, request, api, curl, get, post, put, delete, webhook, fetch, url]
skills/http_client/SKILL.md · 31 lines

What it actually says

HTTP Client Skill

Provides full HTTP client capabilities beyond simple URL fetching:

  • Support all HTTP methods: GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS
  • Custom headers and query parameters
  • JSON and form-encoded request bodies
  • Response status, headers, and body inspection
  • Automatic text extraction: HTML pages are automatically stripped of tags and converted to readable text

Use builtin_http_client tool with fields:

  • method: HTTP method (GET, POST, PUT, PATCH, DELETE, etc.)
  • url: the target URL (https only)
  • headers: (optional) JSON object of headers
  • body: (optional) request body string
  • content_type: (optional) content type for body (default: application/json)

Note: Private/local hosts are blocked for security.

When to use HTTP Client vs Browser

  • Prefer builtin_http_client for calling HTTPS APIs, webhooks, and reading page-like URLs where a single GET/POST and HTML → text (or raw body) is enough. No DOM, no in-page clicks, no JavaScript rendering in a browser engine.
  • Use builtin_browser (skill builtin_skill.browser_client) only on the AI TaskMeta desktop: it opens a visible Chrome and uses CDP (navigate, DOM actions, text for the model). It is not headless and not server-side HTTP. For API-only fetch, use builtin_http_client. The API server does not run desktop browser tools.
  • Summary: HTTP Client = server-side HTTPS fetch; Browser = desktop visible Chrome automation. Prefer HTTP when a single request and HTML/body text is enough.
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 31 lines · 21 tokens per session scan A 187432bc4fe0

Subscribe to this mod's changes

http-client is a skill published in the GitHub repository fisker086/AIOps (21 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 21 tokens to every session and 427 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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