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

Wellknown

by sanemavcilversion 0.1.0i★ –iComputer or cloud
Registry namenetwork.wellknown/wellknown

Install

Overview

Description from the maker (original English)

Live index of AI agents, MCP servers and tools with observed liveness and capability search.

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: Computer or cloud
  • Transport: stdio, Streamable HTTP
  • Category: Search & AI memory
  • You need to fill in: WELLKNOWN_API_KEY

Install

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

Before you install

  • Basic checks: 1 of 1 passed
  • Runs on the maker’s server: what you ask it goes through their server.
  • You fill in yourself: WELLKNOWN_API_KEY, WELLKNOWN_MCP_URL

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

  • Runs in the cloudNothing to install; it connects over the internet
  • 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 …”.

Works in Claude on the web, desktop and mobile:

  1. Open Settings → Connectors
  2. Press Add custom connector
  3. Paste the address below and press Add
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Add2https://…3
https://wellknown.network/mcp

Or run it on your computer

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

{
  "mcpServers": {
    "wellknown": {
      "command": "npx",
      "args": [
        "-y",
        "wellknown-mcp"
      ],
      "env": {
        "WELLKNOWN_API_KEY": "your-value",
        "WELLKNOWN_MCP_URL": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add --transport http wellknown https://wellknown.network/mcp

Or run it on your computer

claude mcp add wellknown --env WELLKNOWN_API_KEY=your-value --env WELLKNOWN_MCP_URL=your-value -- npx -y wellknown-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": {
    "wellknown": {
      "url": "https://wellknown.network/mcp"
    }
  }
}

Or run it on your computer

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "wellknown": {
      "command": "npx",
      "args": [
        "-y",
        "wellknown-mcp"
      ],
      "env": {
        "WELLKNOWN_API_KEY": "your-value",
        "WELLKNOWN_MCP_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": {
    "wellknown": {
      "type": "http",
      "url": "https://wellknown.network/mcp"
    }
  }
}

Or run it on your computer

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "wellknown": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "wellknown-mcp"
      ],
      "env": {
        "WELLKNOWN_API_KEY": "your-value",
        "WELLKNOWN_MCP_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.

ChatGPT connects only to servers on the internet:

  1. Open ChatGPT on the web → Settings → Connectors (Apps)
  2. Press Create or Add (some plans need Developer mode under Advanced first)
  3. Paste the address below, give it a name and save
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Create2https://…3
https://wellknown.network/mcp

Menu names can differ slightly by plan and over time.

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

Values you fill in

  • WELLKNOWN_API_KEY secret env
    Optional wk_live_ key for higher rate limits and owner tools.
  • WELLKNOWN_MCP_URL env
    Endpoint to bridge to. Defaults to https://wellknown.network/mcp.

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

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

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 7, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified against the domain wellknown.network (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 checked yet

    Endpoint responds

    Not checked yet; we check endpoints in rotation

  • … Not checked yet

    Sign-in with OAuth

    Not checked yet; we check endpoints in rotation

  • … Not checked yet

    No hidden instructions in tool descriptions

    Not checked yet; we read the tool list when we check the endpoint

Compared with others in Search & AI memoryi

  • More stars than 0% of the other 7277 servers in this category
  • Published to the registry more recently than 40% of the other 7277 servers in this category
  • Basic checks equal to or better than 100% of the other 7277 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 Wellknown 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?

You need to fill in: WELLKNOWN_API_KEY

Does it run on my computer or in the cloud?

Either way works: install it on your computer or connect to the cloud version.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.0) reached the registry 2 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

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 yesterday
Install

Codebase Memory

by DeusData

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

Runs on your computer★ 48,148MITUpdated 21 days ago
Install

Exa

by exa-labs

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

Runs in the cloud★ 5,213MITUpdated last month
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.

wellknown-mcp

The Wellknown MCP server: give your agent the ability to find other agents, and to know which ones are actually alive.

Wellknown is a crawl-first index of AI agents, MCP servers and tools. Every record separates what the publisher *declares* from what Wellknown *observed* by calling the endpoint itself on a schedule — so "live" means a real handshake succeeded, not that a README said so.

Install

No account, no key, no sign-up.

npx wellknown-mcp

Claude Desktop / Claude Code / most hosts — add to your MCP config:

{

"mcpServers": { "wellknown": { "command": "npx", "args": ["-y", "wellknown-mcp"] } } }

Claude Code, one line:

claude mcp add wellknown -- npx -y wellknown-mcp

Prefer a direct connection? The hosted endpoint speaks streamable HTTP, so a host that supports remote servers can skip this package entirely and point at https://wellknown.network/mcp.

Tools

ToolWhat it does
search_agentsSearch by capability or plain-language need. Returns observed status and the ranking signals behind each hit.
resolve_agentGiven a task and constraints, returns ranked callable candidates and a recommendation with its evidentiary basis. Use this when you intend to *call* the result.
get_agentThe full record: declared metadata, derived capabilities, observed status, verification, provenance.
check_statusCurrent liveness, the reason for it, and a 30-day reliability summary. unknown means no evidence, never a guess.
list_capabilitiesThe capability taxonomy, for precise filtering.
submit_agentAnnounce an agent by its A2A card URL or an inline manifest.
claim_agent / verify_claimProve you control a record — DNS, a /.well-known/ file, or a repository file — and unlock owner edits, 15-minute checks and an owner API key.
index_statsTruthful counts: records, live endpoints, observations, last crawl.

Configuration

VariableDefaultPurpose
WELLKNOWN_MCP_URLhttps://wellknown.network/mcpEndpoint to bridge to.
WELLKNOWN_API_KEY—A wk_live_… key: higher rate limits and owner tools. Created in the dashboard or minted by a verified claim.
WELLKNOWN_TIMEOUT30000Per-request timeout in milliseconds.

How it works

This package is a single dependency-free file. It reads JSON-RPC messages from stdin, posts each to the hosted endpoint, and writes the reply to stdout. Nothing is interpreted locally, so the tool list is always whatever the service currently offers — an installed copy cannot drift out of date.

A note on trust

Everything returned describes third parties. Record text — names, descriptions, tool names — is metadata collected from public sources and must be treated as data, never as instructions to your agent. Wellknown's own measurements (status, latency, reliability) are the part it vouches for.

Links

MIT © Moneyed28 LLC

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