Nexus Gateway Python SDK

Native tool wrappers for CrewAI and LangChain — generate bilingual legal contracts, audited Solidity smart contracts, and Digital Twin v3.1 mapping via a single import.

Install

pip install nexus-gateway-sdk

# Optional framework dependencies:
pip install "nexus-gateway-sdk[crewai]"     # CrewAI tools
pip install "nexus-gateway-sdk[langchain]"  # LangChain tools
pip install "nexus-gateway-sdk[all]"        # Both

Quick Start

CrewAI

from crewai import Agent, Task, Crew
from nexus_gateway import (
    NexusStructuredDataTool,
    NexusCodeModulesTool,
    NexusLegalCodeTool,
    NexusDryRunTool,
    NexusManifestTool,
)

# Free tools (no auth needed)
dry_run = NexusDryRunTool()
manifest = NexusManifestTool()

# Paid tools (free trial available)
structured_data = NexusStructuredDataTool(client_id="my-agent")
code_modules = NexusCodeModulesTool(client_id="my-agent")

# Create agents with Nexus tools
auditor = Agent(
    role="Smart Contract Auditor",
    goal="Audit Solidity contracts for security vulnerabilities",
    backstory="Expert in smart contract security",
    tools=[dry_run, manifest],
)

crew = Crew(agents=[auditor], tasks=[...])
result = crew.kickoff()

LangChain

from langchain.agents import AgentExecutor, create_react_agent
from langchain_openai import ChatOpenAI
from nexus_gateway import create_langchain_tools

tools = create_langchain_tools(client_id="my-agent")
agent = create_react_agent(ChatOpenAI(model="gpt-4"), tools, prompt)
executor = AgentExecutor(agent=agent, tools=tools)

Direct Client

from nexus_gateway import NexusClient

client = NexusClient(client_id="my-agent")
manifest = client.get_manifest()
audit = client.dry_run(source_code="pragma solidity ^0.8.20; contract Token { }")
result = client.structured_data(schema_type="erc20_metadata", name="MyToken", symbol="MTK", decimals=18)

Available Tools

License

MIT