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NanoTools
io.github.nanotools-x402/nanotools in the official MCP registry.
Endpoint https://nano.vodka-24.com/mcp. Source: github.com/nanotools-x402/nanotools.
The registry describes it as: 44 tools for AI agents: Trends, SERP, SEO audits, screenshots, weather, FX, whois, RSS.
We read its 45 tools on 2026-10-22. Nothing in them matched our tool-poisoning rules. It also sets server instructions, text a client puts in front of the model on connect; those were read too.
A clean read means these rules found nothing, not that the server is harmless. A server can change its tools at any time, which is why the index reads it again every week.
Tools it advertises
api_sha256 api_base64 api_hash_multi api_random api_uuid api_slug api_password api_json api_text_stats api_csv2json api_urlcode api_timestamp api_search api_scrape api_dns api_qr api_jwt_decode api_regex api_cron_parse api_yaml2json api_toml2json api_markdown2html api_diff api_html_entities api_unit_convert api_color_convert api_lorem api_weather api_fx_rates api_whois api_rss api_ip_info api_trends api_trends_related api_trends_region api_seo_meta api_robots_audit api_serp_google api_serp_yandex api_readability api_screenshot api_pdf api_render_text api_og_image api_seo_report
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[](https://lazaretto.dev/mcp-registry/io-github-nanotools-x402-nanotools)How this was checked
Lazaretto connects to the endpoint the way any MCP client does, asks the server to introduce itself and list its tools, and reads every name, description, parameter schema and server instruction for tool poisoning: hidden directive blocks, orders to read local secrets, parameters built to carry secrets or the conversation out, orders that redirect another server's tools, and invisible characters. It never calls a tool. What we found across the registry.
To run the same check every time Claude Code adds a server, install the free lazaretto-guard plugin. Browse every server in the index.