Knowmint

Name: Knowmint
Author: Sou0327

by Sou0327version 0.1.4i★ –iRuns on your computer

Registry nameio.github.Sou0327/knowmint

Install

Overview

Description from the maker (original English)

AI agent knowledge marketplace. Discover, purchase, and retrieve human expertise via x402 on Solana.

PopNx MCP’s three pillars

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

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

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
You need to fill in: KM_API_KEY

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: KM_API_KEY, KM_BASE_URL

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

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

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": {
    "knowmint": {
      "command": "npx",
      "args": [
        "-y",
        "@knowmint/mcp-server"
      ],
      "env": {
        "KM_API_KEY": "your-value",
        "KM_BASE_URL": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add knowmint --env KM_API_KEY=your-value --env KM_BASE_URL=your-value -- npx -y @knowmint/mcp-server

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": {
    "knowmint": {
      "command": "npx",
      "args": [
        "-y",
        "@knowmint/mcp-server"
      ],
      "env": {
        "KM_API_KEY": "your-value",
        "KM_BASE_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": {
    "knowmint": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@knowmint/mcp-server"
      ],
      "env": {
        "KM_API_KEY": "your-value",
        "KM_BASE_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

KM_API_KEY secret required env
KnowMint API key
KM_BASE_URL env
KnowMint API base URL (default: https://knowmint.shop)

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 Sou0327, 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 7247 servers in this category
Published to the registry more recently than 5% of the other 7247 servers in this category
Basic checks equal to or better than 100% of the other 7247 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 Knowmint 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: KM_API_KEY

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 (0.1.4) reached the registry 8 months 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 today

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 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.

KnowMint MCP Server

The first knowledge marketplace where AI agents pay directly with SOL — autonomously via x402.

Connect Claude Code, Cursor, or OpenCode to KnowMint. Agents autonomously discover, evaluate, and purchase battle-tested solutions, prompts, datasets, and domain know-how via the x402 protocol — paying sellers directly with SOL.

Human-in-the-loop mode also available: agent proposes a purchase, you approve in seconds. Your choice of autonomy level.

Quickstart (npx — no install needed)

Claude Code (`~/.claude/mcp.json`)

"mcpServers": { "knowmint": { "command": "npx", "args": ["--yes", "--package", "@knowmint/mcp-server@0.1.2", "mcp-server"], "env": { "KM_API_KEY": "km_xxx", "KM_BASE_URL": "https://knowmint.shop" } } } }

Cursor (`~/.cursor/mcp.json`)

OpenCode (`.opencode/config.json`)

"mcp": { "servers": { "knowmint": { "command": "npx", "args": ["--yes", "--package", "@knowmint/mcp-server@0.1.2", "mcp-server"], "env": { "KM_API_KEY": "km_xxx", "KM_BASE_URL": "https://knowmint.shop" } } } } }

Claude Desktop (`~/Library/Application Support/Claude/claude_desktop_config.json`)

Windows: %APPDATA%\Claude\claude_desktop_config.json

`KM_BASE_URL` defaults to https://knowmint.shop when omitted.

Get your API key at knowmint.shop/settings/api or run km login.

Available Tools

Tool	Description
`km_search`	Search knowledge listings by keyword, type, or price
`km_get_detail`	Get full metadata + preview for a listing
`km_purchase`	Record a purchase after sending payment (tx_hash)
`km_get_content`	Retrieve purchased full content
`km_publish`	Publish a new knowledge listing

Authentication

Priority order:

KM_API_KEY environment variable
~/.km/config.json (saved by km login)

If you've already run km login, you can omit the env block entirely.

Autonomous Purchase Flow (x402 — no external wallet MCP needed)

Agents with their own wallet (e.g. CDP Wallet) can complete purchases end-to-end without any additional MCP server:

1. km_get_content(id)

→ { payment_required: true, accepts: [{ payTo, maxAmountRequired, asset, network, ... }] }

Agent sends SOL/USDC from its own wallet → obtain tx_hash / signature

Build payment_proof: base64url(JSON.stringify({ scheme: "exact", network: " ", // match the network returned above payload: { txHash: " ", asset: "native" } }))

km_get_content(id, payment_proof: " ") → { full_content: "...", file_url: null }

Note: Use the network value returned in accepts[] — do not hardcode it.

Devnet example: "solana:EtWTRABZaYq6iMfeYKouRu166VU2xqa1"

Manual purchase via Phantom MCP also works: send tx → km_purchase(id, tx_hash) → km_get_content(id).

Local Development Setup

cd mcp && npm install && npm run build

"mcpServers": { "knowmint": { "command": "node", "args": ["/path/to/knowledge_market/mcp/dist/index.js"], "env": { "KM_API_KEY": "km_xxx" } } } }

Dev mode (TypeScript, no build step)

"mcpServers": { "knowmint": { "command": "node", "args": ["--experimental-strip-types", "/path/to/knowledge_market/mcp/src/index.ts"], "env": { "KM_API_KEY": "km_xxx" } } } }

Verify the server starts

# Should print error to stderr and exit (no KM_API_KEY set)

npx --yes --package @knowmint/mcp-server@0.1.2 mcp-server

With key — should stay running (waiting for MCP messages on stdin)

KM_API_KEY=km_xxx KM_BASE_URL=http://localhost:3000 npm run dev

Interactive inspection

npx @modelcontextprotocol/inspector node --experimental-strip-types mcp/src/index.ts

Requirements

Node.js ≥ 22.6.0
KnowMint API key (get one here)

Knowmint

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Search & AI memoryi

Common questions

Alternatives

Context7

Codebase Memory

Exa

README from the maker

KnowMint MCP Server

Quickstart (npx — no install needed)

Claude Code (~/.claude/mcp.json)

Cursor (~/.cursor/mcp.json)

OpenCode (.opencode/config.json)

Claude Desktop (~/Library/Application Support/Claude/claude_desktop_config.json)

Available Tools

Authentication

Autonomous Purchase Flow (x402 — no external wallet MCP needed)

Local Development Setup

Dev mode (TypeScript, no build step)

Verify the server starts

With key — should stay running (waiting for MCP messages on stdin)

Interactive inspection

Requirements

Claude Code (`~/.claude/mcp.json`)

Cursor (`~/.cursor/mcp.json`)

OpenCode (`.opencode/config.json`)

Claude Desktop (`~/Library/Application Support/Claude/claude_desktop_config.json`)