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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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10 pages for skipwebfetchpreflight.

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Claude apps gateway deployment and operations Claude Code CLI · in the page claude-apps-gateway-deploy …, which calls `api.anthropic.com` from each developer's machine. Set `skipWebFetchPreflight: true` in the managed policy to disable it. * **Multiple gateways**: each is a separate deployment with its… Data usage Claude Code CLI · in the page data-usage …official plugin marketplace auto-install; each has its own opt-out: `skipWebFetchPreflight` in [settings](/docs/en/settings) for WebFetch, and `CLAUDE_CODE_DISABLE_OFFICIAL_MARKETPLACE_AUTOINSTALL` f… Connect Claude Code to an LLM gateway Claude Code CLI · in the page llm-gateway-connect …ted and still calls `api.anthropic.com`. Turn it off separately with `skipWebFetchPreflight: true` in [settings](/docs/en/settings) if your network blocks that host. * For each telemetry stream and th… Enterprise network configuration Claude Code CLI · in the page network-config …ck](/docs/en/data-usage#webfetch-domain-safety-check) unless you set `skipWebFetchPreflight: true` in [settings](/docs/en/settings). When routing through an [LLM gateway](/docs/en/llm-gateway) with [… Choose a sandbox environment Claude Code CLI · in the page sandbox-environments …ebFetch domain safety check still calls it by default unless you set `skipWebFetchPreflight: true`. * `claude.ai` and `platform.claude.com`, which [OAuth sign-in and token refresh](/docs/en/network-co… Claude Code settings Claude Code CLI · in the page settings …| | `skipWebFetchPreflight` | Skip the [WebFetch domain safety check](/docs/en/data-usage#webfetch-domain-safety-check) that… Claude Code settings reference Claude Code CLI · in the page settings-reference …| Permission settings | User, local, or managed | | [`skipWebFetchPreflight`](#skipwebfetchpreflight) | Skip the [WebFetch hostname check]… Changelog Claude Documentation · in the page cowork/changelog …y are guidance the model follows, not an enforced control. * Added `skipWebFetchPreflight`. When enabled, Code sessions no longer contact api.anthropic.com before fetching a web page, which fixes pa… Configuration reference Claude Documentation · in the page third-party/claude-desktop/configuration …| | <span id="skipwebfetchpreflight" />Skip WebFetch domain check<br />`skipWebFetchPreflight` | `boolean` | MDM + Bo… Configuration changelog Claude Documentation · in the page third-party/claude-desktop/configuration-changelog …| `integer` | MCP tool call timeout | | [`skipWebFetchPreflight`](/docs/third-party/claude-desktop/configuration#skipwebfetchpreflight) | `boolean` | S…