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

KnowFirm

by gitdhillonaiversion 0.1.0i★ –iRuns on your computer
Registry nameio.github.gitdhillonai/knowfirm

Install

Overview

Description from the maker (original English)

U.S. business lookup and search via KnowFirm. Bring your own API key; each call uses 1 credit.

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).
  • The registry lists no key to fill in.

Which app do you use?

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

Download the maker’s .mcpb file

The link goes to the maker’s own file; we do not host or repackage it. Open the file and Claude Desktop installs it.

Run this in your terminal

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.

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.

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 with the GitHub account gitdhillonai, which owns the repo

  • … 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 7240 servers in this category
  • Published to the registry more recently than 57% of the other 7240 servers in this category
  • Basic checks equal to or better than 100% of the other 7240 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 KnowFirm 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 (0.1.0) reached the registry 27 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need MCPB 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
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 20 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 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.

KnowFirm MCP

Business lookup, search, screening, CFPB complaint-risk, segment preview, and lookalike discovery over KnowFirm's U.S. public-record API. Six read-only tools. Each uses 1 credit on your KnowFirm account except business_screening (2 credits). No card or payment credentials are handled by this package.

Tools

  • business_lookup: resolve one U.S. business by name across sources (identifiers, confidence, firmographics).
  • business_search: ranked name/query search for U.S. businesses.
  • business_screening: screen a name against the U.S. Consolidated Screening List; returns scored matches (2 credits).
  • complaint_risk: bounded, informational CFPB Consumer Complaint Database summary for a business (by name or KnowFirm id).
  • business_segments: preview a segment of U.S. businesses from a public-record source (DOL Form 5500, FDIC, FMCSA and more) by state, size, industry or filing recency: an exact count plus a 25-row sample.
  • lookalike_businesses: up to 25 U.S. businesses similar to a seed on industry, HQ state and size.

None of these is a consumer report, credit score, or compliance/eligibility decision.

Install

Node.js 20 or newer. Create an API key: sign up at https://knowfirm.com/signup?utm_source=mcp (Google sign-in), then generate a key in the dashboard. Put the key only in the client's secret or env field.

Published package: @knowfirm/knowfirm-mcp on npm, version 0.1.0. Desktop bundle: knowfirm-mcp-0.1.0.mcpb on the v0.1.0 GitHub release (https://github.com/gitdhillonai/knowfirm-mcp/releases/tag/v0.1.0).

Claude Desktop

Open Settings → Developer → Edit Config (macOS file: ~/Library/Application Support/Claude/claude_desktop_config.json). Add the server and restart Claude Desktop:

{

"mcpServers": { "knowfirm": { "command": "npx", "args": ["-y", "@knowfirm/knowfirm-mcp"], "env": {"KNOWFIRM_API_KEY": "YOUR_OWN_KEY"} } } }

You can also import knowfirm-mcp-0.1.0.mcpb. Claude asks for the API key in the bundle's sensitive field.

Cursor

Open Cursor Settings → MCP → Add new MCP server, or edit ~/.cursor/mcp.json (global) or .cursor/mcp.json in a project:

{

"mcpServers": { "knowfirm": { "command": "npx", "args": ["-y", "@knowfirm/knowfirm-mcp"], "env": {"KNOWFIRM_API_KEY": "YOUR_OWN_KEY"} } } }

Reload MCP servers from the same settings page. The tools appear as business_lookup, business_search, lookalike_businesses, and complaint_risk.

MCP Registry

The server is listed as io.github.gitdhillonai/knowfirm (stdio, npm package @knowfirm/knowfirm-mcp 0.1.0, plus the MCPB file).

  • Registry record: https://registry.modelcontextprotocol.io/v0.1/servers/io.github.gitdhillonai%2Fknowfirm/versions/0.1.0
  • Source manifest in this repo: server.json

Clients that install from the registry still need your own KNOWFIRM_API_KEY. This repo does not publish new versions from routine doc updates.

Generic npx
{

"mcpServers": { "knowfirm": { "command": "npx", "args": ["-y", "@knowfirm/knowfirm-mcp"], "env": {"KNOWFIRM_API_KEY": "YOUR_OWN_KEY"} } } }

Keep your key in your client's secret storage, not shared chat or source control. Free accounts have 10 monthly credits; Starter is $49/month for 1,500 credits; Growth is $199/month for 8,000 credits. Annual billing is 2 months free. One MCP tool call = 1 credit. Hard quotas, no automatic overage charges. Check https://knowfirm.com/pricing?utm_source=mcp for current terms, or upgrade at https://knowfirm.com/dashboard/billing?utm_source=mcp.

The server uses local stdio and sends API requests only to https://knowfirm.com. It does not store keys or log them. Returned business/source text is untrusted data, never instructions. Public-record coverage and freshness vary. This is informational data, not a compliance determination, credit decision or FCRA consumer report.

API docs: https://knowfirm.com/docs

Install guide (copy-paste config for Claude Desktop, Cursor, VS Code, Windsurf, and the remote URL): https://knowfirm.com/docs/mcp

The older knowfirm npm package is a separate HTTP SDK.

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