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PopNx MCPMCP servers for people who use AI · explained in plain words

pit.world MCP server

by moshcoderversion 0.5.0i★ –iRuns on your computer
Registry nameworld.pit/pit

Install

Overview

Description from the maker (original English)

MCP server for private web search (no API key) and Moshpit name lookups. No logs, no cookies.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Runs on your computer
  • Transport: stdio
  • Category: Search & AI memory

Install

Pick the AI app you use, then copy the settings.

Before you install

  • Basic checks: 1 of 1 passed
  • Runs on your computer with your user’s permissions (files, network, apps).
  • You fill in yourself: PIT_URL

You need

  • npmNode.js installed (for the npx command)

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "pit": {
      "command": "npx",
      "args": [
        "-y",
        "pitworld",
        "mcp"
      ],
      "env": {
        "PIT_URL": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add pit --env PIT_URL=your-value -- npx -y pitworld mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "pit": {
      "command": "npx",
      "args": [
        "-y",
        "pitworld",
        "mcp"
      ],
      "env": {
        "PIT_URL": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "pit": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "pitworld",
        "mcp"
      ],
      "env": {
        "PIT_URL": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

  • PIT_URL env
    pit.world instance to query (default https://pit.world)

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified against the domain pit.world (the registry checks domain ownership)

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • – Not applicable

    Endpoint responds

    This one runs on your computer; there is no internet endpoint

  • – Not applicable

    Sign-in with OAuth

    Runs on your computer and uses local settings instead

  • … Not checked yet

    No hidden instructions in tool descriptions

    Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Search & AI memoryi

  • More stars than 0% of the other 7241 servers in this category
  • Published to the registry more recently than 66% of the other 7241 servers in this category
  • Basic checks equal to or better than 100% of the other 7241 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is pit.world MCP server safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.5.0) reached the registry 20 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Context7, Codebase Memory, Exa

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Context7

by upstash

Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.

Computer or cloud★ 64,224MITUpdated 3 days ago
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Codebase Memory

by DeusData

Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

Runs on your computer★ 48,148MITUpdated 20 days ago
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Exa

by exa-labs

Connect AI agents to Exa for web search, content fetching, and multi-step research.

Runs in the cloud★ 5,213MITUpdated 44 days ago
Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

pit.world

Private search, and the front door to the Moshpit network.

An MCP server for private web search. pit mcp is a stdio Model Context Protocol server that gives any agent (Claude, Cursor, any MCP client) web search with no API key and no logging, plus Moshpit name lookups. It is in the official MCP Registry as world.pit/pit.

pit.world is a search engine that keeps nothing about you: no query logs, no cookies, no profile, no trackers, no JavaScript required. It is also where the Moshpit network lives in public: type a Moshpit name like chovy.hacker and it resolves through the registry, next to your web results.

# the web

https://pit.world/search?q=anything

the CLI and TUI

bun add -g pitworld pit search "private search engines" pit resolve chovy.hacker pit # interactive

your agent

claude mcp add pit -- pit mcp

MCP server

claude mcp add pit -- bunx pitworld mcp
{ "mcpServers": { "pit": { "command": "bunx", "args": ["pitworld", "mcp"] } } }

Tools:

  • search: private web search (Google and Bing indexes, merged), returns titles, URLs and snippets.
  • moshpit_resolve: resolve a Moshpit name such as chovy.hacker to where it points.
  • moshpit_network: live numbers for the Moshpit network.
  • listing: a business listing by domain (who operates it, category, service area, services, price, hours, feed, ring membership).
  • pros: search the pro directory by category, place and words.
  • ring: the pit.world web ring, in order.
  • edit_listing: edit a listing you own, with its edit key.

No key is needed. PIT_URL points it at another pit.world instance (default https://pit.world).

What it does

  • Web search, privately. Your browser talks only to pit.world. pit.world asks the Google index (through Serper) and the Bing index (through DataForSEO) at the same time, merges the two lists, and tags each result with the engine that found it. The providers get the words, never your IP, browser, cookies or referrer. Linkup, Exa and Perplexity are fallbacks if both fail.
  • Moshpit names. A query that looks like label.ending is checked against the Moshpit registry, and a registered name gets a card with where it points.
  • Bangs. !gh hqtui, rust lifetimes !so, !pit chovy.hacker: straight to that site's search, without a referrer. The full list is at pit.world/about#bangs.
  • Default search engine. OpenSearch description at /opensearch.xml, suggestions at /suggest, and https://pit.world/search?q=%s for any browser.

Business listings, the pro directory and the web ring

  • Listings (`/b/ `). Every site has one. Its owner claims it with a DNS TXT record or a homepage meta tag and gets an edit key (pitk_…, shown once, stored as a hash). The owner writes who operates it (an agent or person handle like riotcoder@profullstack.com, or an https link to an OpenAgent record or profile), the company and its site, a category, the service area (free text plus city, region, country), services, price range, hours, phone and links.
  • Listed by pit.world (seeded). pit.world can list a business itself from public information before its owner claims it: the business's own website, licensing and permit records where available, and public company directories. License facts are checked at the issuer (e.g. CSLB for California contractors); NicheDB's public OutreachGraph mirror is matched by exact website domain and adds attributed industry and observed website topics. Never an email address, and never quote routing: the page says it is unclaimed and written by pit.world, is indexable, and carries a "Is this your business? Claim it" button. Claiming hands it to the owner (pit.world never writes to it again) and the owner can take it out of the directory from the edit page. Startup adds submitted public listings and refreshes directory matches daily. To refresh from listings.db on the server: bun src/admin.ts enrich-nichedb [--force]; to seed a public entry: bun src/admin.ts seed FILE.json (an array of {domain, name, description, phone, category, area, city, region, country, services, links, license, licenseCheckedAt, featured}), bun src/admin.ts unseed DOMAIN, bun src/admin.ts views.
  • Imported from NicheDB (source `nichedb`). Companies in nichedb.dev/c/directory, the public half of OutreachGraph (a company by its domain, its industry and stack; never an email, phone or person), become unclaimed listings: imported in id order after a saved cursor, ten pages of 200 every 5 minutes until caught up, then hourly (PIT_DIRECTORY_IMPORT=off stops it). Only companies whose domain resolves to a public address are listed; adult and gambling ones never are. They follow every claimed and seeded listing in /pros (filtered and paged in SQL), carry "Unclaimed listing, data from nichedb.dev" with the record's link, the claim button and vote buttons. SEO guard: an imported listing is indexable and in sitemap.xml only with a real description (read once from its homepage the first time the page is opened) and a category; otherwise its page is noindex. Claiming one hands it to the owner like any other.
  • OpenProfile (`/b/ /openprofile.md`). Every listing in the directory is also an OpenProfile.md with Kind: organization: web, category, location, area, phone, license, services, links, and whether the owner has claimed it. Found by on the listing page and a Link header; GET /api/pros carries each one's openprofile URL. OutreachGraph reads them as a lead source.
  • Views. /b/ counts page views by people (crawlers, link previews and scripts are not counted) for listings in the directory; the count is views in GET /api/listing.
  • Pro directory (`/pros`, `/pros/ `). Claimed listings and ones pit.world listed, browsable by a fixed list of categories (home services, legal, accounting, software and dev agencies, health, and so on: GET /api/pros/categories) and searchable by words and place. Paid featured placements first, clearly labeled and active only during their paid period, then editorial picks, verified owners by latest edit and unclaimed ones. No reviews in v1: there is no identity to anchor a review to that a business could not fake, so there are none rather than ones that can be bought.
  • Quote requests. A listing with a confirmed private address shows a "Request a quote" form. pit.world mails the owner from hello@pit.world with the sender as Reply-To; the owner's address is never shown, sent, or returned by the API. The address only works after its owner clicks the link mailed to it, so a listing cannot aim pit.world's mail at someone else. One listing per request; three requests an hour per visitor (HMAC'd IP, memory only), five an hour and twenty a day per listing, four hundred a day site-wide; a honeypot field; messages with more than three links are refused. pit.world keeps no copy: only the time, to count.
  • The pit.world ring (`/ring`). **\*.pit.world sites only: the core sites (pit.world, seo.rank, family.ancestry, ...) and then every claimed listing that is a pit.world subdomain or a Moshpit name (relayed at ` .pit.world`), in the order they joined: for those, claiming is joining**, and owners can leave from the edit page. A business on its own ICANN domain can claim its listing and be in /pros, but is never a ring member (ringEligible in src/pros.ts). Hops: /ring/next|prev|random?from= (also ?host=, ?url=, ?via=, or the Referer), 302 with no-store; /api/ring for members that draw the bar themselves; /ring/opml for every member's feed. The verified and edit pages show the links to paste.
  • Mirrored to rssamplifier.com. pit.world reads each claimed site's homepage for RSS/Atom on claim and daily, and keeps the ring pit-world on rssamplifier.com/ring/pit-world in step: submit new feeds, add members, remove ones that left. The sync is a diff (idempotent), runs a few seconds after a claim or edit and once a day, and needs RSSAMPLIFIER_API_KEY (an rssamplifier API key of the account that owns the ring; off without it). Moshpit-only names are not mirrored, since rssamplifier cannot reach them. New claims are also a feed: /b/feed.xml.
Public industrial directory listings

Powell Industries is listed as an unclaimed electrical-infrastructure company in src/directory-seeds.ts, using the existing server-side ensurePublicDirectorySeeds import. View it at /b/powellind.com or browse /pros/industrial. Business owners can claim their entry using the standard verification process. The legacy /pro route already redirects to /pros. This directory listing does not imply endorsement, partnership, or any acquisition by xAI.

Business metadata and company enrichment

Every company listing has a canonical website and a categorized directory page. /pros/industrial is the industrial electrical-power category, and /b/powellind.com is Powell Industries' profile. Both the directory cards and detail pages show the category prominently, along with website and publicly listed phone, when known. A JSON-LD Organization block on the detail page, the JSON API (/api/listing / /api/pros) and /b/ /openprofile.md expose the same public facts to search engines and agents.

Two independent, daily source-driven enrichments run on the existing listings:

  • NicheDB / OutreachGraph: src/nichedb.ts matches the exact website hostname from NicheDB's public OutreachGraph directory mirror and adds attributed business/industry/technology topics. Only company records are accepted; person or site rows are not used as proof of a business association. The OutreachGraph public export intentionally does not expose emails, phone numbers, locations, or CRM leads. No private API token or workspace campaign data is used.
  • Official company website: src/official-company-sites.ts uses the existing SSRF-checked HTTPS verifier for unclaimed, seeded companies only, bounded to three concurrent requests, with a 24-hour refresh. src/company-metadata.ts extracts an explicitly linked same-domain contact page, team/leadership page, company social links, role-based public company inbox (info@, sales@, etc.), and a corporate phone only from matching on-domain Organization JSON-LD. It never guesses a person's address or imports CRM contact data. Each fact retains the company's site as its source. An owner claim hides these automatic facts rather than overriding owner-entered data. A missing or unavailable site remains un-enriched; no fake fields are filled.

People enrichment: PIT links to an official team/leadership page when one is explicitly published by the company. Do not import named prospects from OutreachGraph into PIT's public directory unless their company affiliation has explicit, authoritative public evidence, and only use their public, voluntarily published professional profiles. Keep private campaigns, scores, guessed emails, personal phone numbers, and unpublished OpenProfile.md files out of public profiles. This phase does not replicate OutreachGraph's people database.

Deployment note: changes to the code do not update a running process by themselves. After deployment, server startup migrates the listings SQLite database and refresh jobs fill metadata; verify GET /api/pros/categories, GET /api/listing?domain=powellind.com, and /pros/industrial to confirm live data and category counts.

Promotion campaigns: promote first, then show the results

A promotion campaign lists and promotes the businesses an OutreachGraph campaign targets, measures what t

Only the beginning is shown; read the rest in the repo

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