Metadata-Version: 2.4
Name: moss-anthropic
Version: 1.0.0
Summary: MOSS cryptographic signing integration for Anthropic Claude
Project-URL: Homepage, https://mosscomputing.com
Project-URL: Documentation, https://mosscomputing.com/docs
Project-URL: Repository, https://github.com/mosscomputing/moss-anthropic
Author-email: IAMPASS Technologies <moss@iampass.com>
License: BSL-1.1
License-File: LICENSE
Keywords: ai-agents,anthropic,claude,cryptography,moss,security,signing
Classifier: Development Status :: 4 - Beta
Classifier: Intended Audience :: Developers
Classifier: License :: Other/Proprietary License
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.9
Classifier: Programming Language :: Python :: 3.10
Classifier: Programming Language :: Python :: 3.11
Classifier: Programming Language :: Python :: 3.12
Requires-Python: >=3.9
Requires-Dist: moss-sdk>=1.0.0
Provides-Extra: dev
Requires-Dist: anthropic>=0.20.0; extra == 'dev'
Requires-Dist: pytest-asyncio>=0.21.0; extra == 'dev'
Requires-Dist: pytest>=7.0.0; extra == 'dev'
Description-Content-Type: text/markdown

# moss-anthropic

MOSS signing integration for Anthropic SDK (Claude). **Unsigned output is broken output.**

[![PyPI](https://img.shields.io/pypi/v/moss-anthropic)](https://pypi.org/project/moss-anthropic/)

## Installation

```bash
pip install moss-anthropic
```

## Quick Start

Sign tool use, responses, and text blocks from Claude:

```python
from anthropic import Anthropic
from moss_anthropic import sign_tool_use, sign_response, sign_text

client = Anthropic()

# Get a response with tool use
response = client.messages.create(
    model="claude-sonnet-4-20250514",
    max_tokens=1024,
    messages=[{"role": "user", "content": "What's the weather?"}],
    tools=[{"name": "get_weather", "description": "Get weather", ...}]
)

# Sign the full response
result = sign_response(response, agent_id="weather-bot")
print(f"Signed: {result.signature[:20]}...")

# Sign individual tool use blocks
for block in response.content:
    if block.type == "tool_use":
        result = sign_tool_use(block, agent_id="weather-bot")
```

## Enterprise Mode

Set `MOSS_API_KEY` for automatic policy evaluation:

```python
import os
os.environ["MOSS_API_KEY"] = "your-api-key"

from moss_anthropic import sign_tool_use, enterprise_enabled

print(f"Enterprise: {enterprise_enabled()}")  # True

result = sign_tool_use(
    tool_use_block,
    agent_id="finance-bot",
    context={"user_id": "u123"}
)

if result.blocked:
    print(f"Blocked by policy: {result.policy.reason}")
```

## Verification

```python
from moss_anthropic import verify_envelope

verify_result = verify_envelope(result.envelope)
if verify_result.valid:
    print(f"Signed by: {verify_result.subject}")
```

## All Functions

| Function | Description |
|----------|-------------|
| `sign_tool_use()` | Sign a tool use block |
| `sign_tool_use_async()` | Async version |
| `sign_response()` | Sign a full Message response |
| `sign_response_async()` | Async version |
| `sign_text()` | Sign a text block |
| `sign_text_async()` | Async version |
| `sign_message()` | Alias for sign_response |
| `sign_message_async()` | Async version |
| `verify_envelope()` | Verify a signed envelope |

## Enterprise Features

| Feature | Free | Enterprise |
|---------|------|------------|
| Local signing | ✓ | ✓ |
| Offline verification | ✓ | ✓ |
| Policy evaluation | - | ✓ |
| Evidence retention | - | ✓ |
| Audit exports | - | ✓ |

## Links

- [moss-sdk](https://pypi.org/project/moss-sdk/) - Core MOSS SDK
- [mosscomputing.com](https://mosscomputing.com) - Project site

## License

This package is licensed under the [Business Source License 1.1](LICENSE).

- Free for evaluation, testing, and development
- Free for non-production use
- Production use requires a [MOSS subscription](https://mosscomputing.com/pricing)
- Converts to Apache 2.0 on January 25, 2030
