50 pages for webfetch.

server-tools Claude Developer Platform · in the page agents-and-tools/tool-use/server-tools …```typescript TypeScript const client = new Anthropic(); const webFetchTool = { type: "web_fetch_20250910", name: "web_fetch", max_uses: 5 } as const; const runCommandTool: Anth… web-fetch-tool Claude Developer Platform · in the page agents-and-tools/tool-use/web-fetch-tool …r and extract the key findings." }], Tools = [new ToolUnion(new WebFetchTool20260318())] }; var message = await client.Messages.Create(parameters); Console.WriteLine(message); ``` ``… Beta Claude Developer Platform · in the page api/beta …ool. - `BetaServerToolCaller20260120 object` - `BetaWebFetchToolResultBlockParam object` - `content: BetaWebFetchToolResultErrorBlockParam or BetaWebFetchBlockParam`… Agents Claude Developer Platform · in the page api/beta/agents …cution. - `type: optional "grep"` - `BetaManagedAgentsWebFetchToolConfigParams object` Configuration override for the web_fetch tool. - `name: "web_fetch"`… Archive Agent Claude Developer Platform · in the page api/beta/agents/archive …e execution. - `type: "grep"` - `BetaManagedAgentsWebFetchToolConfig object` Configuration for the web_fetch tool. - `enabled: boolean` - `name: "w… Create Agent Claude Developer Platform · in the page api/beta/agents/create …cution. - `type: optional "grep"` - `BetaManagedAgentsWebFetchToolConfigParams object` Configuration override for the web_fetch tool. - `name: "web_fetch"`… List Agents Claude Developer Platform · in the page api/beta/agents/list …e execution. - `type: "grep"` - `BetaManagedAgentsWebFetchToolConfig object` Configuration for the web_fetch tool. - `enabled: boolean` - `name: "w… Get Agent Claude Developer Platform · in the page api/beta/agents/retrieve …e execution. - `type: "grep"` - `BetaManagedAgentsWebFetchToolConfig object` Configuration for the web_fetch tool. - `enabled: boolean` - `name: "w… Update Agent Claude Developer Platform · in the page api/beta/agents/update …cution. - `type: optional "grep"` - `BetaManagedAgentsWebFetchToolConfigParams object` Configuration override for the web_fetch tool. - `name: "web_fetch"`… Versions Claude Developer Platform · in the page api/beta/agents/versions …e execution. - `type: "grep"` - `BetaManagedAgentsWebFetchToolConfig object` Configuration for the web_fetch tool. - `enabled: boolean` - `name: "w… List Agent Versions Claude Developer Platform · in the page api/beta/agents/versions/list …e execution. - `type: "grep"` - `BetaManagedAgentsWebFetchToolConfig object` Configuration for the web_fetch tool. - `enabled: boolean` - `name: "w… Messages Claude Developer Platform · in the page api/beta/messages …ool. - `BetaServerToolCaller20260120 object` - `BetaWebFetchToolResultBlockParam object` - `content: BetaWebFetchToolResultErrorBlockParam or BetaWebFetchBlockParam`… Batches Claude Developer Platform · in the page api/beta/messages/batches …- `BetaServerToolCaller20260120 object` - `BetaWebFetchToolResultBlockParam object` - `content: BetaWebFetchToolResultErrorBlockParam or BetaWebFetchBlockParam`… Create a Message Batch Claude Developer Platform · in the page api/beta/messages/batches/create …- `BetaServerToolCaller20260120 object` - `BetaWebFetchToolResultBlockParam object` - `content: BetaWebFetchToolResultErrorBlockParam or BetaWebFetchBlockParam`… Retrieve Message Batch results Claude Developer Platform · in the page api/beta/messages/batches/results …- `BetaServerToolCaller20260120 object` - `BetaWebFetchToolResultBlock object` - `content: BetaWebFetchToolResultErrorBlock or BetaWebFetchBlock` - `… Count tokens in a Message Claude Developer Platform · in the page api/beta/messages/count_tokens …ool. - `BetaServerToolCaller20260120 object` - `BetaWebFetchToolResultBlockParam object` - `content: BetaWebFetchToolResultErrorBlockParam or BetaWebFetchBlockParam`… Create a Message Claude Developer Platform · in the page api/beta/messages/create …ool. - `BetaServerToolCaller20260120 object` - `BetaWebFetchToolResultBlockParam object` - `content: BetaWebFetchToolResultErrorBlockParam or BetaWebFetchBlockParam`… Sessions Claude Developer Platform · in the page api/beta/sessions …- `type: optional "grep"` - `BetaManagedAgentsWebFetchToolConfigParams object` Configuration override for the web_fetch tool. - `name: "web_fetch"`… Archive Session Claude Developer Platform · in the page api/beta/sessions/archive …- `type: "grep"` - `BetaManagedAgentsWebFetchToolConfig object` Configuration for the web_fetch tool. - `enabled: boolean`… Create Session Claude Developer Platform · in the page api/beta/sessions/create …- `type: optional "grep"` - `BetaManagedAgentsWebFetchToolConfigParams object` Configuration override for the web_fetch tool. - `name: "web_fetch"`… Events Claude Developer Platform · in the page api/beta/sessions/events …- `type: "grep"` - `BetaManagedAgentsWebFetchToolConfig object` Configuration for the web_fetch tool. - `enabled: boolean`… List Events Claude Developer Platform · in the page api/beta/sessions/events/list …- `type: "grep"` - `BetaManagedAgentsWebFetchToolConfig object` Configuration for the web_fetch tool. - `enabled: boolean`… Stream Events Claude Developer Platform · in the page api/beta/sessions/events/stream …- `type: "grep"` - `BetaManagedAgentsWebFetchToolConfig object` Configuration for the web_fetch tool. - `enabled: boolean`… List Sessions Claude Developer Platform · in the page api/beta/sessions/list …- `type: "grep"` - `BetaManagedAgentsWebFetchToolConfig object` Configuration for the web_fetch tool. - `enabled: boolean`… Get Session Claude Developer Platform · in the page api/beta/sessions/retrieve …- `type: "grep"` - `BetaManagedAgentsWebFetchToolConfig object` Configuration for the web_fetch tool. - `enabled: boolean`… Threads Claude Developer Platform · in the page api/beta/sessions/threads …ion. - `type: "grep"` - `BetaManagedAgentsWebFetchToolConfig object` Configuration for the web_fetch tool. - `enabled: boolean`… Archive Session Thread Claude Developer Platform · in the page api/beta/sessions/threads/archive …ion. - `type: "grep"` - `BetaManagedAgentsWebFetchToolConfig object` Configuration for the web_fetch tool. - `enabled: boolean`… Events Claude Developer Platform · in the page api/beta/sessions/threads/events …- `type: "grep"` - `BetaManagedAgentsWebFetchToolConfig object` Configuration for the web_fetch tool. - `enabled: boolean`… List Session Thread Events Claude Developer Platform · in the page api/beta/sessions/threads/events/list …- `type: "grep"` - `BetaManagedAgentsWebFetchToolConfig object` Configuration for the web_fetch tool. - `enabled: boolean`… Stream Session Thread Events Claude Developer Platform · in the page api/beta/sessions/threads/events/stream …- `type: "grep"` - `BetaManagedAgentsWebFetchToolConfig object` Configuration for the web_fetch tool. - `enabled: boolean`… List Session Threads Claude Developer Platform · in the page api/beta/sessions/threads/list …ion. - `type: "grep"` - `BetaManagedAgentsWebFetchToolConfig object` Configuration for the web_fetch tool. - `enabled: boolean`… Get Session Thread Claude Developer Platform · in the page api/beta/sessions/threads/retrieve …ion. - `type: "grep"` - `BetaManagedAgentsWebFetchToolConfig object` Configuration for the web_fetch tool. - `enabled: boolean`… Update Session Claude Developer Platform · in the page api/beta/sessions/update …on. - `type: optional "grep"` - `BetaManagedAgentsWebFetchToolConfigParams object` Configuration override for the web_fetch tool. - `name: "web_fetch"`… Messages Claude Developer Platform · in the page api/messages …r-side tool. - `ServerToolCaller20260120 object` - `WebFetchToolResultBlockParam object` - `content: WebFetchToolResultErrorBlockParam or WebFetchBlockParam` - `W… Batches Claude Developer Platform · in the page api/messages/batches …ool. - `ServerToolCaller20260120 object` - `WebFetchToolResultBlockParam object` - `content: WebFetchToolResultErrorBlockParam or WebFetchBlockParam`… Create a Message Batch Claude Developer Platform · in the page api/messages/batches/create …ool. - `ServerToolCaller20260120 object` - `WebFetchToolResultBlockParam object` - `content: WebFetchToolResultErrorBlockParam or WebFetchBlockParam`… Retrieve Message Batch results Claude Developer Platform · in the page api/messages/batches/results …result"` default: web_search_tool_result - `WebFetchToolResultBlock object` - `caller: DirectCaller or ServerToolCaller or ServerToolCaller20260120`… Count tokens in a Message Claude Developer Platform · in the page api/messages/count_tokens …r-side tool. - `ServerToolCaller20260120 object` - `WebFetchToolResultBlockParam object` - `content: WebFetchToolResultErrorBlockParam or WebFetchBlockParam` - `W… Create a Message Claude Developer Platform · in the page api/messages/create …r-side tool. - `ServerToolCaller20260120 object` - `WebFetchToolResultBlockParam object` - `content: WebFetchToolResultErrorBlockParam or WebFetchBlockParam` - `W… apple-foundation-models Claude Developer Platform · in the page cli-sdks-libraries/libraries/apple-foundation-models …Search(maxUses: 5), .codeExecution, ] ) ``` `.webSearch` and `.webFetch` accept optional `allowedDomains`, `blockedDomains`, and `maxUses`. Server tool activity surfaces in the transcript as `C… tools Claude Developer Platform · in the page managed-agents/tools …Configs = [ new BetaManagedAgentsWebFetchToolConfigParams { Enabled = false }, ], }, ], }); ``` ```go Go agent, err := clien… Set up Claude Code for your organization Claude Code CLI · in the page admin-setup …de). Permission rules and sandboxing cover different layers. Denying WebFetch blocks Claude's fetch tool, but if Bash is allowed, `curl` and `wget` can still reach any URL. Sandboxing closes that gap… How the agent loop works Claude Code CLI · in the page agent-sdk/agent-loop …| | **Web** | `WebSearch`, `WebFetch` | Search the web, fetch and parse pages |… Intercept and control agent behavior with hooks Claude Code CLI · in the page agent-sdk/hooks …lt-in tools include `Bash`, `Read`, `Write`, `Edit`, `Glob`, `Grep`, `WebFetch`, `Agent`, and others (see [Tool Input Types](/docs/en/agent-sdk/typescript#tool-input-types) for the full list). MCP too… Agent SDK reference - Python Claude Code CLI · in the page agent-sdk/python …"total_cells": int, # Total cells in notebook after edit } ``` ### WebFetch **Tool name:** `WebFetch` **Input:** ```python theme={null} { "url": str, # The URL to fetch content from "pr… Agent SDK reference - TypeScript Claude Code CLI · in the page agent-sdk/typescript …putInput | TaskStopInput | TaskUpdateInput | TodoWriteInput | WebFetchInput | WebSearchInput | WorkflowInput; ``` ### Agent **Tool name:** `Agent`. The previous name `Task` is still acce… Claude Code changelog Claude Code CLI · in the page changelog …RICTED=1`): removes the built-in tools that run commands or code and `WebFetch` (unless named in `--tools`), keeps file tools inside the working directory, refuses `bypassPermissions`, and ignores use… Claude apps gateway for Amazon Bedrock, Claude Platform on AWS, Google Cloud, and Microsoft Foundry Claude Code CLI · in the page claude-apps-gateway …gress allowlist reaches them only as parent settings, in the form of `WebFetch` domain rules and sandbox network rules. Without the opt-in, those sessions run without the egress restriction, and nothi… Claude apps gateway configuration Claude Code CLI · in the page claude-apps-gateway-config …availableModels: [claude-sonnet-4-6] permissions: { deny: ["WebFetch", "WebSearch"] } # Default catch-all last: matches everyone who authenticated. - match: {} cli: ava… Claude apps gateway deployment and operations Claude Code CLI · in the page claude-apps-gateway-deploy …c.com` except from the gateway. Blocking that egress also breaks the [WebFetch domain safety check](/docs/en/data-usage#webfetch-domain-safety-check), which calls `api.anthropic.com` from each develop…