wehub-resource-sync
74 lines
2.4 KiB
Markdown
74 lines
2.4 KiB
Markdown
# composio-anthropic
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Adapts Composio tools to the Claude Messages API tool format and executes the tool calls Claude returns.
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## Installation
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```bash
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pip install composio composio-anthropic anthropic
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```
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Set `COMPOSIO_API_KEY` (create one at https://dashboard.composio.dev/settings) and `ANTHROPIC_API_KEY` in your environment.
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## Quickstart
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`AnthropicProvider` is non-agentic: Claude returns `tool_use` blocks, `handle_tool_calls` executes them, and you send the results back as `tool_result` blocks.
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```python
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import json
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import anthropic
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from composio import Composio
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from composio_anthropic import AnthropicProvider
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composio = Composio(provider=AnthropicProvider())
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client = anthropic.Anthropic()
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# Create a session for your user
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session = composio.create(user_id="user_123")
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tools = session.tools()
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messages = [
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{"role": "user", "content": "Send an email to john@example.com with the subject 'Hello' and body 'Hello from Composio!'"}
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]
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response = client.messages.create(
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model="claude-opus-4-6",
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max_tokens=4096,
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tools=tools,
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messages=messages,
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)
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# Agentic loop: keep executing tool calls until the model responds with text
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while response.stop_reason == "tool_use":
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tool_use_blocks = [block for block in response.content if block.type == "tool_use"]
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results = composio.provider.handle_tool_calls(user_id="user_123", response=response)
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messages.append({"role": "assistant", "content": response.content})
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messages.append({
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"role": "user",
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"content": [
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{"type": "tool_result", "tool_use_id": tool_use_blocks[i].id, "content": json.dumps(result)}
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for i, result in enumerate(results)
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]
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})
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response = client.messages.create(
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model="claude-opus-4-6",
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max_tokens=4096,
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tools=tools,
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messages=messages,
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)
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# Print final response
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for block in response.content:
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if block.type == "text":
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print(block.text)
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```
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`handle_tool_calls` extracts every `tool_use` block from the response, executes the matching Composio tools, and returns the raw results in order. Claude occasionally emits tool input as a JSON string instead of an object; the provider normalizes this before execution.
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Building on the Claude Agent SDK instead of the Messages API? Use [`composio-claude-agent-sdk`](../claude_agent_sdk).
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## Links
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- Anthropic provider docs: https://docs.composio.dev/docs/providers/anthropic
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- Composio docs: https://docs.composio.dev
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