Borrowing it
Nothing to install: this file belongs to rradhakr-git/nppes-mcp-server. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/rradhakr-git/nppes-mcp-server/main/CLAUDE.mdgit clone --depth 1 https://github.com/rradhakr-git/nppes-mcp-serverWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/rradhakr-git/nppes-mcp-server/claude-md)<a href="https://agentmods.dev/instructions/rradhakr-git/nppes-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/rradhakr-git/nppes-mcp-server/claude-md.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.03763 | $0.03763 |
| Opus 5 | $0.01881 | $0.01881 |
| Sonnet 5 | $0.00753 | $0.00753 |
| Haiku 4.5 | $0.00376 | $0.00376 |
Grade A, and why
nppes-mcp-server CLAUDE.md scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -X POST http://localhost:8000/mcp \ How it starts
The opening of the file, as written. The whole thing — 429 lines — stays where its author put it; the contents beside it link to each section on GitHub.
NPPES MCP Server — CLAUDE.md
This file provides guidance for AI coding agents (Claude Code, Copilot, Cursor, etc.) working on this repository.
Project Overview
NPPES MCP Server is a FastAPI-based Model Context Protocol (MCP) server that exposes tools for querying the US National Provider Identifier (NPI) Registry (NPPES). It supports natural-language provider search via a RAG pipeline over NUCC taxonomy codes.
- MCP endpoint:
POST /mcp(JSON-RPC 2.0) - Protocol version:
2024-11-05 - Server version:
1.0.0 - License: Apache 2.0
Repository Structure
nppes-mcp-server/
├── app/
│ ├── main.py # FastAPI app, MCP endpoint, tool registry
│ ├── tools/ # One file per MCP tool
│ │ ├── search_providers.py
│ │ ├── get_provider_by_npi.py
│ │ ├── validate_npi.py
│ │ ├── get_npi_for_provider.py
│ │ ├── resolve_taxonomy.py
│ │ └── semantic_search.py
│ ├── rag/
│ │ ├── index.py # TaxonomyIndex (FAISS vector store)
│ │ └── embedder.py # Embedder (paraphrase-MiniLM-L3-v2)
│ └── nppes_client.py # Async NPPES API HTTP client (httpx)
├── models/
│ └── paraphrase-MiniLM-L3-v2/ # Bundled sentence-transformer model
├── tests/
│ ├── unit/ # Fast unit tests (~63 tests)
│ ├── integration/ # Integration tests (~14 tests)
│ ├── contract/ # Schema/contract validation (schemathesis)
│ └── e2e/ # Live server E2E tests (requires MCP_SERVER_URL)
├── scripts/ # Utility scripts
├── .env.example # Environment variable template
├── Dockerfile # Production Docker image
├── render.yaml # Render.com deployment config
├── requirements.txt # Production dependencies
├── requirements-dev.txt # Dev/test dependencies
├── TOOLS.md # Detailed tool documentation
└── README.md # User-facing documentation
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 6d ago First seen · 429 lines · 3,763 tokens per session scan A 11d54096f162
nppes-mcp-server CLAUDE.md is an instructions file published in the GitHub repository rradhakr-git/nppes-mcp-server (0 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 3,763 tokens to every session, about $0.0188 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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