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docs: add NodeProxy x402 markdown parser tool integration#4642

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pgalyen1987 wants to merge 2 commits into
langchain-ai:mainfrom
pgalyen1987:docs/nodeproxy-integration
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docs: add NodeProxy x402 markdown parser tool integration#4642
pgalyen1987 wants to merge 2 commits into
langchain-ai:mainfrom
pgalyen1987:docs/nodeproxy-integration

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@pgalyen1987

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Summary

Adds documentation for NodeProxy — a standalone LangChain tool integration published as nodeproxy-tools on PyPI.

NodeProxy fetches public URLs and returns token-efficient Markdown for LLM ingestion. Agents pay per parse via x402 USDC micropayments on Base mainnet (~$0.002/parse).

Changes

  • New integration guide: src/oss/python/integrations/tools/nodeproxy.mdx
  • Listed in tools index under Web browsing and alphabetical cards

Package details

Item Link
PyPI https://pypi.org/project/nodeproxy-tools/
GitHub https://github.com/pgalyen1987/NodeProxy
Live service https://nodeproxy-production.up.railway.app
MCP Registry io.github.pgalyen1987/nodeproxy

Test plan

  • MDX renders on docs preview
  • Links resolve (/oss/integrations/tools/nodeproxy)
  • Install snippet works: pip install "nodeproxy-tools[x402,langchain]"

Co-authored-by: Cursor <cursoragent@cursor.com>
@langchain-automated-triage

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Thanks for contributing a new integration docs page, pgalyen1987!

We receive a large number of PRs and review them as quickly as we can. Please bear with us as we work through the queue.

If you have already tagged a maintainer on this PR, do not tag them again.

@github-actions github-actions Bot added the external User is not a member of langchain-ai label Jun 28, 2026
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Contributor

Thanks for opening a docs PR, pgalyen1987! When it's ready for review, please add the relevant reviewers:

  • @mdrxy (Python integrations)

@github-actions github-actions Bot added langchain For docs changes to LangChain oss python For content related to the Python version of LangChain projects labels Jun 28, 2026
@pgalyen1987

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Author

Ready for review — Python integrations.

Mason Daugherty (@mdrxy) could you take a look when you have a moment? This adds the standalone nodeproxy-tools integration guide and lists it on the tools index.

Thanks!

- Remove non-functional NODEPROXY_API_URL env var override (the package
  never reads it); point to the api_url client argument instead.
- Make the agent example runnable: use the llm from ChatModelTabs, and
  add the provider install + OPENAI_API_KEY setup so create_agent works.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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