prism-langchain

Prism Network GPU tools for LangChain and LangGraph agents. The agent sees live GPU capacity and prices, rents a machine with an on-chain USDG payment on Robinhood Chain, runs commands on it over SSH, and releases it. Every lease settles with a verifiable receipt.

pip install prism-langchain langgraph langchain-openai

The package itself depends only on langchain-core; the example below also needs LangGraph and a model provider.

from langchain_openai import ChatOpenAI
from langgraph.prebuilt import create_react_agent
from prism_langchain import get_prism_tools

agent = create_react_agent(ChatOpenAI(model="gpt-4o-mini"), get_prism_tools())
agent.invoke({"messages": [("user", "Rent a GPU with 24GB of VRAM and run nvidia-smi.")]})

Tools

Configuration

PRISM_AGENT_KEY: private key of a wallet holding USDG and gas on Robinhood Chain (chain id 4663, RPC rpc.mainnet.chain.robinhood.com). PRISM_ESCROW: optional; defaults to the live lease escrow. Without a key the read-only tools still answer from the public API. Or construct PrismToolset(agent=PrismAgent(...)) yourself and pass it to get_prism_tools.

prism_lease_and_run takes max_usdg (default 1.0), a hard cap on what a single lease may cost. Set it deliberately when raising duration.

Trust classes run open < isolated < attested < confidential. On an open supplier the host operator can read anything the workload touches; raise min_trust_class for anything sensitive.

Prism is pre-production and unaudited. Do not lease with a wallet or workload you cannot lose.