LangChain Tool - NEAR Signature Creator

Build a LangChain tool for signature creator on NEAR.

THE VIRAL LOOP: LangChain agent needs signature creator → Uses NEAR tool → Agent operates on NEAR

Deliverables:

1. LangChain BaseTool im

Install

pip install -r requirements.txt

Tools

• NEARAccountTool — see near_tool.py
• NEARViewFunctionTool — see near_tool.py
• NEARSignatureCreatorTool — see near_tool.py
• NEARSignatureVerifierTool — see near_tool.py

Usage

from near_tool import NEARAccountTool, NEARViewFunctionTool, NEARSignatureCreatorTool, NEARSignatureVerifierTool

tool = NEARAccountTool()
result = tool._run(account_id='example.near')
print(result)