langchain-fodda

Official LangChain custom tool integration for the Fodda Context Layer — verified knowledge graphs, live supplemental market intelligence, and working Human Agents for autonomous AI reasoning models.

Installation

pip install langchain-fodda

Quickstart

from langchain_fodda import FoddaContextRetriever

# Initialize tool (API key optional for unauthenticated discovery / x402 on-chain settlement)
fodda_tool = FoddaContextRetriever(api_key="sk_live_...")

# Query a knowledge graph
result = fodda_tool.run("psfk-retail")
print(result)

Features

• Autonomous 402 Paywall Handling: Gracefully catches HTTP 402 challenges. If no credentials or wallet are configured, it automatically falls back to Fodda's verified markdown schema summaries (free_readme) so the LLM reasoning loop never crashes.
• Base USDC Micro-Settlement: Supports on-chain 5¢ Base USDC payments via X-402-Payment.
• Stripe Shared Payment Tokens (SPT): Supports zero-friction bearer token settlement.

License

MIT