Anthropic-compatible API

AdSkull exposes a façade at https://api.adskull.io/anthropic/v1 that speaks the Anthropic Messages API. Tools written against Anthropic SDKs work by just changing the base URL and key.

ANTHROPIC_BASE_URL = https://api.adskull.io/anthropic/v1
ANTHROPIC_API_KEY  = sk_live_...

Both x-api-key: sk_live_... and Authorization: Bearer sk_live_... are accepted.

Endpoint

POST /anthropic/v1/messages

Claude Code (CLI)

export ANTHROPIC_BASE_URL="https://api.adskull.io/anthropic/v1"
export ANTHROPIC_API_KEY="sk_live_..."
claude --model claude-opus-4.7

openclaw

export ANTHROPIC_API_URL="https://api.adskull.io/anthropic/v1"
export ANTHROPIC_API_KEY="sk_live_..."
openclaw chat --model claude-opus-4.7

Anthropic Python SDK

from anthropic import Anthropic

client = Anthropic(
    base_url="https://api.adskull.io/anthropic/v1",
    api_key="sk_live_...",
)
msg = client.messages.create(
    model="claude-opus-4.7",
    max_tokens=512,
    messages=[{"role": "user", "content": "Hi"}],
)
print(msg.content[0].text)
print(msg.usage.millicredits_charged)  # AdSkull extension

LangChain (Anthropic)

from langchain_anthropic import ChatAnthropic

llm = ChatAnthropic(
    anthropic_api_url="https://api.adskull.io/anthropic/v1",
    anthropic_api_key="sk_live_...",
    model="claude-opus-4.7",
)

Model IDs

You may pass either the canonical AdSkull ID or its hyphenated alias:

Pass any of these	We route to
`claude-opus-4.7`, `claude-opus-4-7`, `claude-4.7`	Claude Opus 4.7
`claude-opus-4.6`, `claude-opus-4-6`, `claude-4.6`	Claude Opus 4.6
`claude-sonnet-4.6`, `claude-sonnet-4-6`, `claude-sonnet-46`	Claude Sonnet 4.6
`gemini-3-pro`, `gemini-3.0-pro`	Gemini 3 Pro

If you pass a real Anthropic model name (e.g. claude-3-opus-20240229) we return 400 invalid_request. AdSkull controls the underlying provider for each AdSkull model ID.

Streaming

"stream": true emits Anthropic-style SSE events: message_start, content_block_start, content_block_delta, content_block_stop, message_delta, message_stop. The final message_delta includes our usage.millicredits_charged and usage.credits_charged extensions.

What’s different from real Anthropic

model accepts AdSkull IDs only.
usage includes millicredits_charged and credits_charged extensions.
anthropic-version is accepted but ignored.
Beta headers like anthropic-beta are ignored.
All errors use the AdSkull error envelope: {"error": {"code", "message"}}.

Start Here

Features

Core Concepts

Anthropic-compatible API

Endpoint

Claude Code (CLI)

openclaw

Anthropic Python SDK

LangChain (Anthropic)

Model IDs

Streaming

What’s different from real Anthropic

​Endpoint

​Claude Code (CLI)

​openclaw

​Anthropic Python SDK

​LangChain (Anthropic)

​Model IDs

​Streaming

​What’s different from real Anthropic

Endpoint

Claude Code (CLI)

openclaw

Anthropic Python SDK

LangChain (Anthropic)

Model IDs

Streaming

What’s different from real Anthropic