@crewai-ts/anthropic

Anthropic native provider for CrewAI TypeScript.

Provides AnthropicCompletion with full support for Claude models, including tool use, thinking mode, structured outputs, file uploads, and the Anthropic tool-search beta.

Install

npm install @crewai-ts/anthropic

Requirements:

• Node.js 22 or later
• @crewai-ts/core 0.2.0 or later

Quick Start

import { Agent } from "@crewai-ts/core";
import { AnthropicCompletion, registerAnthropicProvider } from "@crewai-ts/anthropic";

registerAnthropicProvider();

const agent = new Agent({
  role: "Writer",
  goal: "Write concise prose",
  backstory: "A careful wordsmith.",
  llm: new AnthropicCompletion({ model: "claude-sonnet-4-5" }),
});

Or use the registered provider name:

const agent = new Agent({
  role: "Writer",
  goal: "Write concise prose",
  backstory: "A careful wordsmith.",
  llm: "anthropic/claude-sonnet-4-5",
});

Thinking Mode

Enable extended thinking for reasoning-heavy tasks:

import { AnthropicThinkingConfig } from "@crewai-ts/anthropic";

const llm = new AnthropicCompletion({
  model: "claude-opus-4-5",
  thinking: new AnthropicThinkingConfig({ type: "enabled", budget_tokens: 16000 }),
});

Tool Search

Use the Anthropic tool-search beta:

import { AnthropicToolSearchConfig } from "@crewai-ts/anthropic";

const llm = new AnthropicCompletion({
  model: "claude-sonnet-4-5",
  toolSearch: new AnthropicToolSearchConfig({ type: "bm25" }),
});

Exports

• AnthropicCompletion — main LLM provider class
• AnthropicThinkingConfig — thinking mode configuration
• AnthropicToolSearchConfig — tool search configuration
• registerAnthropicProvider — register the provider with the core runtime
• Model constants: NATIVE_STRUCTURED_OUTPUT_MODELS, TOOL_SEARCH_TOOL_TYPES, ANTHROPIC_FILES_API_BETA, ANTHROPIC_STRUCTURED_OUTPUTS_BETA

License

MIT