Knowmint

Name: Knowmint
Author: Sou0327

by Sou0327version 0.1.4i★ 3 (Stars for the whole repo)iRuns on your computer

Registry nameio.github.Sou0327/knowmint

How to install

What it does

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

Connects Runs on your computer
Account or key Needs KM_API_KEY
Category Crypto & blockchain

Install

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

Passed 2/3 checks · Runs on your computer · ✓ Commands checked Nov 14, 2026

First: which AI do you use?

ClaudeWeb · app · phoneChatGPTWebClaude CodeTerminalCursorCode editorVS CodeCode editorOtherOther apps

Pick your app and the steps appear below.

Works with Claude, with some setup first

You need a Knowmint key (create it on the maker’s site) · Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Sign up and create a Knowmint key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
How to get a key is in the maker’s README below
Done
Open the Claude desktop app’s settings file
SettingsDeveloperEdit Config
Done

Paste these settings and save the file

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

Paste the key only into the app’s field, never into a chat or to anyone

Done

Quit Claude and open it again
Done
Try it
Use Knowmint and tell me what you can do for me, then show me one thing
✓ If Claude says it is using Knowmint or shows a Knowmint tool in the answer, you are connected

1 optional setting(s) (works without them)

The command above works without these. Add them only if you want to change something, following the maker’s description.

KM_BASE_URL KnowMint API base URL (default: https://knowmint.shop)

Descriptions are as written by the maker.

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

ChatGPT cannot connect Knowmint yet

Knowmint runs on your computer, but ChatGPT can only connect servers that run on the web

What you can do instead

A · Use an app that can connect Knowmint

Steps for Claude →You need a Knowmint key (create it on the maker’s site) · Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone
Steps for Claude Code →You need a Knowmint key (create it on the maker’s site) · Install Node.js on your computer first (one time)
Steps for Cursor →You need a Knowmint key (create it on the maker’s site) · Install Node.js on your computer first (one time)
Steps for VS Code →You need a Knowmint key (create it on the maker’s site) · Install Node.js on your computer first (one time)

B · Others in Crypto & blockchain that work with ChatGPT

Picked from the most used in the same category, only ones that connect by address with no key

Solana MCP by Vybe✓ ChatGPT
0xinsider✓ ChatGPT
Highwire✓ ChatGPT

Works with Claude Code, with some setup first

You need a Knowmint key (create it on the maker’s site) · Install Node.js on your computer first (one time)

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Sign up and create a Knowmint key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
How to get a key is in the maker’s README below
Done
Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Done
4
Paste this command and press Enter
```
claude mcp add --scope user knowmint --env KM_API_KEY=your-value -- npx -y @knowmint/mcp-server
```
Replace “your-value” with your key before pressing Enter
Paste the key only into the app’s field, never into a chat or to anyone
Done
Type /mcp in Claude Code
You should see Knowmint listed as connected
Done
Try it
Use Knowmint and tell me what you can do for me, then show me one thing
✓ If Claude Code says it is using Knowmint or shows a Knowmint tool in the answer, you are connected

1 optional setting(s) (works without them)

The command above works without these. Add them only if you want to change something, following the maker’s description.

KM_BASE_URL KnowMint API base URL (default: https://knowmint.shop)

Descriptions are as written by the maker.

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor, with some setup first

You need a Knowmint key (create it on the maker’s site) · Install Node.js on your computer first (one time)

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Sign up and create a Knowmint key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
How to get a key is in the maker’s README below
Done
Click this button to open Cursor
Open in Cursor
Cursor asks you to confirm; click Install
Done
Fill in your key
In the Knowmint settings, KM_API_KEY is empty; add your key and save
Paste the key only into the app’s field, never into a chat or to anyone
Done
Open the AI chat in Cursor in Agent mode
Done
Try it
Use Knowmint and tell me what you can do for me, then show me one thing
✓ If Cursor says it is using Knowmint or shows a Knowmint tool in the answer, you are connected

1 optional setting(s) (works without them)

The command above works without these. Add them only if you want to change something, following the maker’s description.

KM_BASE_URL KnowMint API base URL (default: https://knowmint.shop)

Descriptions are as written by the maker.

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code, with some setup first

You need a Knowmint key (create it on the maker’s site) · Install Node.js on your computer first (one time)

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Sign up and create a Knowmint key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
How to get a key is in the maker’s README below
Done
Click this button to open VS Code
Open in VS Code
VS Code asks you to confirm; click Install
Done
Fill in your key
In the Knowmint settings, KM_API_KEY is empty; add your key and save
Paste the key only into the app’s field, never into a chat or to anyone
Done
Open the AI chat in VS Code in Agent mode
Done
Try it
Use Knowmint and tell me what you can do for me, then show me one thing
✓ If VS Code says it is using Knowmint or shows a Knowmint tool in the answer, you are connected

1 optional setting(s) (works without them)

The command above works without these. Add them only if you want to change something, following the maker’s description.

KM_BASE_URL KnowMint API base URL (default: https://knowmint.shop)

Descriptions are as written by the maker.

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

JSON settings are under “For developers” below

Stuck? Ask people who use Knowmint💬 Discussion →

For developers: Terminal commands and JSON settings

Installed on your computer

Claude Code

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

Claude Desktop (claude_desktop_config.json)

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

Cursor (~/.cursor/mcp.json)

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

VS Code (mcp.json)

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

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)

Descriptions are as written by the maker.

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

At a glance

GitHub stars i: 3 (Stars for the whole repo)
This repo holds several MCP listings; its stars count once in rankings
Downloads per weeki: 33/wk
Licence i: MIT
Connection: Runs on your computer
Transport: stdio
Latest versioni: 0.1.4
Categoryi: Crypto & blockchain
Published to registryi: Mar 13, 2026
Code last changedi: Apr 16, 2026
Maker: Sou0327
Packages: npm: @knowmint/mcp-server
Repo: Sou0327/knowmint
Registry status: Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Run on your computer in

Claude Goose LM Studio Msty Studio Cherry Studio Cursor VS Code + GitHub Copilot Visual Studio Windsurf (Devin Desktop)Zed Kiro Cline Continue JetBrains AI Assistant Claude Code Codex CLI Gemini CLI OpenCode nodecode Warp LibreChat Raycast

All apps, with pros and cons →

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 14, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account Sou0327, which owns the repo
! Caution
Still maintained
Code last changed 7 months ago, more than 6 months ago
✓ Pass
Has a licence
Uses MIT
– 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

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

User reviews

No reviews yet

Compared with others in Crypto & blockchaini

More stars than 0% of the other 1684 servers in this category
Published to the registry more recently than 6% of the other 1684 servers in this category
Basic checks equal to or better than 51% of the other 1684 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 2 of 3 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 7 months ago, 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: Solana MCP by Vybe, Oracle3 prediction-market arbitrage checks, Polymarket Paper Trader

Others in the same category

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

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

Solana MCP by Vybe

Solana MCP developer toolkit: wallets, trades, markets, PnL, transfers, onchain, swaps & API tools.

by vybenetworkGrowing★ 2.7K Stars for the whole repoUpdated 6 months ago

Runs in the cloud

How to connect

Oracle3 prediction-market arbitrage checks

Kalshi and Polymarket data, venue fees, no-arbitrage checks and paper execution for AI agents.

by YichengYang-EthanGrowing↓ 35/wk★ 569Updated 44 days ago

Runs on your computer

Install

Polymarket Paper Trader

Polymarket paper trading for AI agents: $10k paper money, real order books, official fees.

by agent-nextGrowing↓ 226/wk★ 507Updated 29 days ago

Runs on your computer

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

What it does

Install

Install Node.js

Sign up and create a Knowmint key

Open the Claude desktop app’s settings file

Paste these settings and save the file

Quit Claude and open it again

Try it

What you can do instead

Install Node.js

Sign up and create a Knowmint key

Open Terminal

Paste this command and press Enter

Type /mcp in Claude Code

Try it

Install Node.js

Sign up and create a Knowmint key

Click this button to open Cursor

Fill in your key

Open the AI chat in Cursor in Agent mode

Try it

Install Node.js

Sign up and create a Knowmint key

Click this button to open VS Code

Fill in your key

Open the AI chat in VS Code in Agent mode

Try it

Installed on your computer

Values you fill in

At a glance

Which apps can use it

Related guides

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

Discussion

User reviews

Compared with others in Crypto & blockchaini

Common questions

Others in the same category

Solana MCP by Vybe

Oracle3 prediction-market arbitrage checks

Polymarket Paper Trader

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`)