Anthropic

Requirements

• An Anthropic API key loaded into the TapPass vault (ANTHROPIC_API_KEY).
• Your tp_ key and the TapPass gateway URL.

Option A — SDK

from tappass import Agent

agent = Agent("https://tappass.example.com", "tp_...")
response = agent.chat("Hello", model="claude-3-5-sonnet-20241022")

Option B — Anthropic SDK, zero-code

export ANTHROPIC_BASE_URL=https://tappass.example.com
export ANTHROPIC_API_KEY=tp_...

import anthropic

client = anthropic.Anthropic()  # picks up env vars
message = client.messages.create(
    model="claude-3-5-sonnet-20241022",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Hello"}],
)

Note

The Anthropic proxy uses the native /v1/messages endpoint — not the OpenAI-compatible one. Use ANTHROPIC_BASE_URL, not OPENAI_BASE_URL.

What’s supported

• messages (streaming + non-streaming)
• Tool use (tool_use / tool_result content blocks)
• Vision (image content blocks)
• Extended thinking (thinking blocks on Claude 3.7+)
• Prompt caching (cache_control fields)

What changes

Header	Purpose
x-api-key: tp_...	Your TapPass key — replaces the Anthropic key
anthropic-version: 2023-06-01	Standard Anthropic version header, passed through
X-Agent-Id: <your-agent>	Optional — attaches audit events
X-Governance-Flags: ...	Optional — per-request flag override