clampd 0.6.1

Runtime security SDK for AI agents — guard tool calls in 1 line

Clampd Python SDK

Runtime security for AI agents. Guard every tool call — OpenAI, Anthropic, LangChain, Google ADK — in 1 line. Prompt and response scanning enabled by default.

Installation

pip install clampd

With framework extras:

pip install clampd[langchain]    # LangChain callback handler
pip install clampd[mcp]          # MCP server support
pip install clampd[all]          # Everything

Quick Start

import clampd
from openai import OpenAI

# Configure once at startup
clampd.init(
    agent_id="my-agent",
    secret="ags_...",              # from dashboard → Agent → Secret
    gateway_url="http://localhost:8080",
    api_key="ag_live_...",
)

# Wrap your OpenAI client — done
client = clampd.openai(OpenAI())

# Use it exactly like before. Clampd intercepts every tool call.
response = client.chat.completions.create(
    model="gpt-4o",
    messages=[{"role": "user", "content": "Look up active users"}],
    tools=[...],
)
# Dangerous tool calls → blocked before execution
# Safe tool calls → proceed normally
# Prompts scanned before LLM, responses scanned after

What's New in 0.5.0

• Per-agent JWT identity — each agent authenticates independently in multi-agent systems
• Streaming guard — opt-in tool call interception for streaming responses (guard_stream=True)
• Circuit breaker & retry — automatic retry with exponential backoff
• CrewAI integration — guard CrewAI agent tool calls
• 216 detection rules with Aho-Corasick prefilter (22μs at 10K rules)

Configuration

# Option 1: Single agent (simple)
clampd.init(
    agent_id="my-agent",
    secret="ags_...",
    gateway_url="http://localhost:8080",
    api_key="ag_live_...",
)

# Option 2: Multi-agent (per-agent identity)
clampd.init(
    agent_id="orchestrator",
    api_key="ag_live_...",
    agents={
        "orchestrator": os.environ["CLAMPD_SECRET_orchestrator"],
        "research-agent": os.environ["CLAMPD_SECRET_research_agent"],
        "writer-agent": os.environ["CLAMPD_SECRET_writer_agent"],
    },
)

# Option 3: Environment variables
# CLAMPD_GATEWAY_URL=http://localhost:8080
# CLAMPD_API_KEY=ag_live_...
# CLAMPD_SECRET_orchestrator=ags_...
# CLAMPD_SECRET_research_agent=ags_...

Anthropic / Claude

import clampd
from anthropic import Anthropic

clampd.init(agent_id="my-agent", secret="ags_...")
client = clampd.anthropic(Anthropic())

response = client.messages.create(
    model="claude-sonnet-4-20250514",
    max_tokens=1024,
    messages=[{"role": "user", "content": "..."}],
    tools=[...],
)

LangChain

import clampd

handler = clampd.langchain(agent_id="my-agent", secret="ags_...")

result = executor.invoke(
    {"input": "Look up active users"},
    config={"callbacks": [handler]},
)

Google ADK

import clampd
from google.adk import Agent

agent = Agent(
    tools=[...],
    before_tool_callback=clampd.adk(agent_id="my-agent", secret="ags_..."),
)

Multi-Agent (A2A Delegation)

import os
import clampd

# Each agent authenticates with its own secret.
# Delegation chains are tracked automatically.
clampd.init(
    agent_id="orchestrator",
    api_key="ag_live_...",
    agents={
        "orchestrator": os.environ["CLAMPD_SECRET_orchestrator"],
        "research-agent": os.environ["CLAMPD_SECRET_research_agent"],
    },
)

# research-agent gets its own JWT (sub=research-agent).
# Kill "research-agent" from dashboard → only this agent is blocked.
@clampd.guard("web.search", agent_id="research-agent")
def search(query: str):
    return web_search(query)

Streaming Guard (opt-in)

# Stream tool calls are guarded only when guard_stream is enabled.
client = clampd.openai(OpenAI(),
    agent_id="my-agent",
    guard_stream=True,  # buffer + guard tool call chunks before release
)

stream = client.chat.completions.create(
    model="gpt-4o",
    stream=True,
    tools=[...],
    messages=[{"role": "user", "content": "..."}],
)
# Tool calls in the stream are buffered, guarded, then released.
# Text chunks pass through immediately with zero added latency.

CrewAI

import clampd
from clampd.crewai_callback import ClampdCrewAIGuard

clampd.init(agent_id="crew-agent", secret="ags_...")
guard = ClampdCrewAIGuard()

# Wrap CrewAI tools
safe_tool = guard.wrap_tool(my_tool)

Direct Guard (any function)

import clampd

clampd.init(agent_id="my-agent", secret="ags_...")

@clampd.guard("database.query")
def run_query(sql: str):
    return db.execute(sql)

# With response checking (opt-in)
@clampd.guard("file_read", check_response=True)
def read_file(path: str):
    return open(path).read()

run_query("SELECT * FROM users")     # allowed
run_query("DROP TABLE users")        # raises ClampdBlockedError

Scanning Options

# Defaults (v0.4.0+): scan_input=True, scan_output=True
client = clampd.openai(OpenAI(), agent_id="my-agent")

# Opt out of scanning
client = clampd.openai(OpenAI(),
    agent_id="my-agent",
    scan_input=False,   # skip prompt scanning
    scan_output=False,  # skip response scanning
)

Error Handling

from clampd import ClampdBlockedError

try:
    run_query("DROP TABLE users")
except ClampdBlockedError as e:
    print(f"Blocked: {e}")
    # e.risk_score, e.denial_reason, e.request_id

API Reference

Function	Description
clampd.init(...)	Configure global client. agents for per-agent secrets.
clampd.openai(client, **opts)	Wrap OpenAI client. guard_stream=True for streaming.
clampd.anthropic(client, **opts)	Wrap Anthropic client. guard_stream=True for streaming.
clampd.guard(tool_name, **opts)	Decorator for any function. agent_id for per-agent identity.
clampd.langchain(...)	LangChain callback handler
clampd.adk(...)	Google ADK before_tool_callback
ClampdCrewAIGuard	CrewAI tool wrapping

Requirements

• Python 3.10+
• A running Clampd gateway

License

BUSL-1.1