---
title: "Web fetch"
canonical: "https://canmyagentuse.com/features/web-fetch"
contentKind: "feature"
locale: "en"
description: "Retrieve live web pages or APIs during a run."
llmSummary: "Web fetch retrieves current web pages or API responses during a run. Authentication, network policy, rendering, and source attribution are qualifiers."
publishedAt: "2026-08-28T00:00:00.000Z"
updatedAt: "2026-08-28T00:00:00.000Z"
verifiedAt: "2026-08-28"
tags: ["tools"]
---

# Web fetch

Web fetch retrieves current web pages or API responses during a run. Authentication, network policy, rendering, and source attribution are qualifiers.

- HTML: https://canmyagentuse.com/features/web-fetch
- JSON: https://canmyagentuse.com/api/v1/features/web-fetch.json
- Markdown: https://canmyagentuse.com/features/web-fetch.md

Terminology basis: **Common product term** — https://code.claude.com/docs/en/tools-reference.

## Current support at a glance

Web fetch: 3 supported, 0 partial, 0 unsupported, 28 unreviewed across 31 cataloged products.

- Reviewed current products: 3 of 31
- Supported: 3
- Partial: 0
- Unsupported: 0
- Unreviewed: 28
- Not applicable: 0

Unknown or unreviewed means insufficient published evidence; it does not mean unsupported.

Retrieve live web pages or APIs during a run.

The matrix below lists published **web**, **desktop**, and **CLI** surfaces. Unreviewed cells remain **unknown** until a dated note and public source support a more specific status.

Use the Markdown and JSON twins if you are an agent reading this site.

## Catalog context

- Category: [tools](/categories/tools.md)
- Terminology basis: Common product term
- Aliases: None

## Compatibility assertions

Unknown means insufficient published evidence; it does not mean unsupported.

### ChatGPT (web)

- Harness: [ChatGPT](/harnesses/chatgpt-web.md)
- current: **Unknown**
- preview: **Unknown**

### Claude (web)

- Harness: [Claude](/harnesses/claude-web.md)
- current: **Unknown**
- preview: **Unknown**

### Gemini (web)

- Harness: [Gemini](/harnesses/gemini-web.md)
- current: **Unknown**
- preview: **Unknown**

### Copilot (web)

- Harness: [Copilot](/harnesses/copilot-web.md)
- current: **Unknown**
- preview: **Unknown**

### Grok (web)

- Harness: [Grok](/harnesses/grok-web.md)
- current: **Unknown**
- preview: **Unknown**

### Grok Bot (desktop)

- Harness: [Grok Bot](/harnesses/grok-bot-desktop.md)
- current: **Unknown**

### Perplexity (web)

- Harness: [Perplexity](/harnesses/perplexity-web.md)
- current: **Unknown**
- preview: **Unknown**

### Le Chat (web)

- Harness: [Le Chat](/harnesses/le-chat.md)
- current: **Unknown**
- preview: **Unknown**

### Devin (web)

- Harness: [Devin](/harnesses/devin-web.md)
- current: **Unknown**
- preview: **Unknown**

### Replit Agent (web)

- Harness: [Replit Agent](/harnesses/replit-agent.md)
- current: **Unknown**
- preview: **Unknown**

### ChatGPT (desktop)

- Harness: [ChatGPT](/harnesses/chatgpt-desktop.md)
- current: **Unknown**
- preview: **Unknown**

### Claude (desktop)

- Harness: [Claude](/harnesses/claude-desktop.md)
- current: **Unknown**
- preview: **Unknown**

### Cursor (desktop)

- Harness: [Cursor](/harnesses/cursor.md)
- current: **Unknown**
- preview: **Unknown**

### OpenWork Desktop (desktop)

- Harness: [OpenWork Desktop](/harnesses/openwork-desktop.md)
- current: **Unknown**

### Copilot Chat (desktop)

- Harness: [Copilot Chat](/harnesses/vscode-copilot.md)
- current: **Supported**
  - Target: dated-documentation — current Visual Studio Code agent tools documentation; observed 2026-08-28
  - Environment: local-default
  - Constraint (policy): URL access uses request pre-approval and fetched-response review unless trusted-domain or approval settings apply
  - Evidence: [Microsoft — VS Code AI features cheat sheet](https://code.visualstudio.com/docs/agents/reference/ai-features-cheat-sheet) — documented; observed 2026-08-28
  - Evidence: [Microsoft — Manage approvals and permissions](https://code.visualstudio.com/docs/agents/run/approvals) — documented; observed 2026-08-28
  - Qualification note 4: Evidence checked 2026-08-28: Microsoft documents VS Code's built-in `#web/fetch` agent tool as fetching content from a given web page, subject to URL request and response approvals.
- preview: **Unknown**

### Chrome WebMCP origin trial (desktop)

- Harness: [Chrome WebMCP origin trial](/harnesses/chrome-webmcp-preview.md)
- current: **Unknown**

### Windsurf (desktop)

- Harness: [Windsurf](/harnesses/windsurf.md)
- current: **Unknown**
- preview: **Unknown**

### Zed Agent (desktop)

- Harness: [Zed Agent](/harnesses/zed-agent.md)
- current: **Unknown**
- preview: **Unknown**

### Continue (desktop)

- Harness: [Continue](/harnesses/continue.md)
- current: **Unknown**
- preview: **Unknown**

### Cline (desktop)

- Harness: [Cline](/harnesses/cline.md)
- current: **Unknown**
- preview: **Unknown**

### JetBrains AI (desktop)

- Harness: [JetBrains AI](/harnesses/jetbrains-ai.md)
- current: **Unknown**
- preview: **Unknown**

### Warp (desktop)

- Harness: [Warp](/harnesses/warp.md)
- current: **Unknown**
- preview: **Unknown**

### Claude CLI (cli)

- Harness: [Claude CLI](/harnesses/claude-cli.md)
- current: **Supported**
  - Target: dated-documentation — current Claude Code tools reference; observed 2026-08-28
  - Environment: local-default
  - Constraint (policy): WebFetch requires permission and is subject to configured allow and deny rules plus Anthropic's hostname safety check
  - Evidence: [Anthropic — Claude Code tools reference](https://code.claude.com/docs/en/tools-reference) — documented; observed 2026-08-28
  - Qualification note 2: Evidence checked 2026-08-28: Anthropic documents Claude Code's built-in `WebFetch` tool as fetching content from a specified URL.
- preview: **Unknown**

### ChatGPT CLI (cli)

- Harness: [ChatGPT CLI](/harnesses/chatgpt-cli.md)
- current: **Unknown**
- preview: **Unknown**

### Codex CLI (cli)

- Harness: [Codex CLI](/harnesses/codex-cli.md)
- current: **Unknown**
- preview: **Unknown**

### OpenCode (cli)

- Harness: [OpenCode](/harnesses/opencode.md)
- current: **Unknown**
- preview: **Unknown**

### Gemini CLI (cli)

- Harness: [Gemini CLI](/harnesses/gemini-cli.md)
- current: **Supported**
  - Target: dated-documentation — current Gemini CLI web fetch documentation; observed 2026-08-28
  - Environment: local-default
  - Constraint (policy): shows a confirmation dialog for converted URLs and always requires explicit confirmation in Plan Mode
  - Evidence: [Google — Gemini CLI web fetch tool](https://geminicli.com/docs/tools/web-fetch/) — documented; observed 2026-08-28
  - Qualification note 3: Evidence checked 2026-08-28: Google documents Gemini CLI's `web_fetch` tool as retrieving and processing content from specific URLs, with URL approval and plan-mode confirmation controls.
- preview: **Unknown**

### Aider (cli)

- Harness: [Aider](/harnesses/aider.md)
- current: **Unknown**
- preview: **Unknown**

### Goose (cli)

- Harness: [Goose](/harnesses/goose.md)
- current: **Unknown**
- preview: **Unknown**

### Copilot CLI (cli)

- Harness: [Copilot CLI](/harnesses/copilot-cli.md)
- current: **Unknown**
- preview: **Unknown**

### Amp (cli)

- Harness: [Amp](/harnesses/amp-cli.md)
- current: **Unknown**
- preview: **Unknown**