Frisk

Name: Frisk
Author: Jiangw2718i

by Jiangw2718iversion 0.0.3i★ 1 (Stars belong to another repo)iRuns on your computer

Registry namedev.tryfrisk/frisk

How to install

What it does

Screen the counterparty of an x402 payment before an agent pays it. Runs offline by default.

Connects Runs on your computer
Account or key Needs FRISK_API_KEY
Category Online shops & payments

Install

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

Passed 2/3 checks · Runs on your computer

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 Frisk 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 Frisk 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.
Open the Frisk site ↗
Done
Open the Claude desktop app’s settings file
SettingsDeveloperEdit Config
Done

Paste these settings and save the file

{
  "mcpServers": {
    "frisk": {
      "command": "npx",
      "args": [
        "-y",
        "frisk-mcp"
      ],
      "env": {
        "FRISK_API_KEY": "your-value",
        "FRISK_BASE_URL": "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 Frisk and tell me what you can do for me, then show me one thing
✓ If Claude says it is using Frisk or shows a Frisk tool in the answer, you are connected

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

ChatGPT cannot connect Frisk yet

Frisk 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 Frisk

Steps for Claude →You need a Frisk 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 Frisk key (create it on the maker’s site) · Install Node.js on your computer first (one time)
Steps for Cursor →You need a Frisk key (create it on the maker’s site) · Install Node.js on your computer first (one time)
Steps for VS Code →You need a Frisk key (create it on the maker’s site) · Install Node.js on your computer first (one time)

B · Others in Online shops & payments that work with ChatGPT

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

Spree Commerce developer docs for AI agents✓ ChatGPT
Stripe MCP✓ ChatGPT
earnrate✓ ChatGPT

Works with Claude Code, with some setup first

You need a Frisk 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 Frisk 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.
Open the Frisk site ↗
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 frisk --env FRISK_API_KEY=your-value --env FRISK_BASE_URL=your-value -- npx -y frisk-mcp
```
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 Frisk listed as connected
Done
Try it
Use Frisk and tell me what you can do for me, then show me one thing
✓ If Claude Code says it is using Frisk or shows a Frisk tool in the answer, you are connected

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 Frisk 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 Frisk 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.
Open the Frisk site ↗
Done
Click this button to open Cursor
Open in Cursor
Cursor asks you to confirm; click Install
Done
Fill in your key
In the Frisk settings, FRISK_API_KEY, FRISK_BASE_URL 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 Frisk and tell me what you can do for me, then show me one thing
✓ If Cursor says it is using Frisk or shows a Frisk tool in the answer, you are connected

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 Frisk 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 Frisk 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.
Open the Frisk site ↗
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 Frisk settings, FRISK_API_KEY, FRISK_BASE_URL 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 Frisk and tell me what you can do for me, then show me one thing
✓ If VS Code says it is using Frisk or shows a Frisk tool in the answer, you are connected

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 Frisk💬 Discussion →

For developers: Terminal commands and JSON settings

Installed on your computer

Claude Code

claude mcp add --scope user frisk --env FRISK_API_KEY=your-value --env FRISK_BASE_URL=your-value -- npx -y frisk-mcp

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "frisk": {
      "command": "npx",
      "args": [
        "-y",
        "frisk-mcp"
      ],
      "env": {
        "FRISK_API_KEY": "your-value",
        "FRISK_BASE_URL": "your-value"
      }
    }
  }
}

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "frisk": {
      "command": "npx",
      "args": [
        "-y",
        "frisk-mcp"
      ],
      "env": {
        "FRISK_API_KEY": "your-value",
        "FRISK_BASE_URL": "your-value"
      }
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "frisk": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "frisk-mcp"
      ],
      "env": {
        "FRISK_API_KEY": "your-value",
        "FRISK_BASE_URL": "your-value"
      }
    }
  }
}

Values you fill in

FRISK_API_KEY secret env
Hosted API key. Without it the server screens entirely offline.
FRISK_BASE_URL env
Override the hosted endpoint. Defaults to https://api.tryfrisk.dev.

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

At a glance

GitHub stars i: 1 (Stars belong to another repo)
This listing points to someone else’s repo, so its stars are not counted in rankings
Downloads per weeki: 46/wk
Verified domain: ✓ tryfrisk.dev
Licence i: MIT
Connection: Runs on your computer
Transport: stdio
Latest versioni: 0.0.3
Categoryi: Online shops & payments
Published to registryi: Nov 12, 2026
Code last changedi: Nov 11, 2026
Maker: Jiangw2718i
Packages: npm: frisk-mcp
Repo: Jiangw2718i/frisk
Website: tryfrisk.dev
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 12, 2026

! Caution
Maker matches the repo
The publisher (tryfrisk.dev) is not the repo owner (Jiangw2718i); someone else may have listed it
✓ Pass
Still maintained
Code last changed yesterday
✓ 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 Online shops & paymentsi

More stars than 0% of the other 2736 servers in this category
Published to the registry more recently than 99% of the other 2736 servers in this category
Basic checks equal to or better than 58% of the other 2736 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 Frisk 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: FRISK_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 yesterday, and the latest version (0.0.3) reached the registry today.

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: Spree Commerce developer docs for AI agents, Stripe MCP, Sessy — Amazon SES observability

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

Spree Commerce developer docs for AI agents

Spree Commerce docs for AI coding agents: build headless B2B and marketplace ecommerce on its APIs.

by spreeWidely used★ 15.8K Stars for the whole repoUpdated 13 days ago

Runs in the cloud

Install

Stripe MCP

Stripe’s official server lets AI view and manage customers, products, payments and invoices. Connect to Stripe’s cloud and sign in with OAuth.

by stripeWidely used★ 2.1KUpdated 13 months ago

Runs in the cloud✓ service owner · stripe.com

Install

Sessy — Amazon SES observability

Read-only Amazon SES observability: search events, inspect bounces, pull delivery stats.

by marckohlbruggeGrowing★ 945Updated 3 months ago

Runs in the cloud

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.

frisk-mcp

An MCP server for Frisk: screen the counterparty of an x402 payment before an agent pays it.

It exposes one tool, screen_payment, which runs Frisk's deterministic checks — address sanity, dynamic-payTo comparison, transport safety, and your own spending policy — and returns allow / review / block with reasons.

Where this belongs, and where it does not

An MCP tool runs when a model decides to call it. A payment check that the model can skip is a weaker guarantee than the same check on the code path that signs the payment.

So:

Use the library — frisk-screen — where the money actually moves. It is MIT, dependency-free, and runs locally.
Use this server for inspection ("is this address safe to pay?"), and for agents that cannot import a library.

Frisk is advisory in both cases: it returns a verdict and your code decides. It never holds funds and cannot stop a payment by itself.

Install

npx frisk-mcp

In any MCP client's server configuration:

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

No API key, no account, no network call: with no configuration the server screens entirely on your machine.

Hosted mode (optional)

Set FRISK_API_KEY to have the same tool answered by the hosted service, which adds reputation-graph signals and returns higher-confidence verdicts:

"mcpServers": { "frisk": { "command": "npx", "args": ["-y", "frisk-mcp"], "env": { "FRISK_API_KEY": "..." } } } }

The hosted tier is in early access — email support@tryfrisk.dev. Everything above works without it.

variable	default	meaning
`FRISK_API_KEY`	unset	Enables hosted screening. Unset means fully offline.
`FRISK_BASE_URL`	`https://api.tryfrisk.dev`	Override the hosted endpoint.

The tool

screen_payment

argument	type	notes
`counterparty`	string, required	The address the agent intends to pay.
`endpoint`	string	URL that quoted the payment; checked for plaintext transport.
`amount`	number	Amount about to be paid.
`asset`	string	Asset symbol, e.g. `USDC`.
`observedPayTo`	string	The `payTo` the endpoint actually returned. If it differs from `counterparty`, that is the dynamic-`payTo` swap.
`strictness`	number 0–1	0 permissive, 1 paranoid. Default 0.3.
`maxPerCall`	number	Spending ceiling for one call.
`allowedAssets`	string[]	Assets the agent may pay in.

Returns verdict, trustScore, confidence, reasons, policyHits, source (lite or hosted), and allowed.

What it does not do

It does not detect Sybil clusters, and offline it has no view of an address's history — lite screening always reports "low" confidence for that reason. It also cannot repair the protocol underneath a payment: replay, settlement races, and facilitator trust live in x402 itself, not in the request being signed. Those limits are discussed in Five ways an x402 payment can go wrong.

License

MIT

Frisk

What it does

Install

Install Node.js

Sign up and create a Frisk 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 Frisk key

Open Terminal

Paste this command and press Enter

Type /mcp in Claude Code

Try it

Install Node.js

Sign up and create a Frisk 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 Frisk 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 Online shops & paymentsi

Common questions

Others in the same category

Spree Commerce developer docs for AI agents

Stripe MCP

Sessy — Amazon SES observability

README from the maker

frisk-mcp

Where this belongs, and where it does not

Install

Hosted mode (optional)

The tool

What it does not do

License