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

Verity MCP

by meloliva14version 0.3.0i★ 0iRuns on your computer
Registry nameio.github.meloliva14/verity-mcp

How to install

What it does

Fail-closed verify-before-you-act gate for AI agents. Signed receipts. Pay-per-call via x402.

  • Connects Runs on your computer
  • Account or key No key needed
  • Category Other

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?

Pick your app and the steps appear below.

Works with Claude, with some setup first

Install Python (uv) on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone

Let AI install it

Copy this message into a Claude chat. The AI checks your computer, tells you which file it will change, and waits for your OK every time.

Please install the MCP server Verity MCP for Claude on this computer, in this order: 1) Check uv with uv --version. If it is missing, tell me to install it from https://docs.astral.sh/uv/getting-started/installation/; do not install it yourself. 2) Use only this config (already checked by PopNx MCP): { "mcpServers": { "verity": { "command": "uvx", "args": [ "verity-mcp" ] } } } 3) Tell me the full path of the file you will change, or the command you will run, and wait for my OK. 4) No key is needed. 5) Do what we agreed, then check that the Verity MCP tools really show up.

This message has no key in it. If a key is needed, the AI will ask you to paste it yourself into the file or the app’s field.

  1. Install uv (if you don’t have it)

    Already installed? Check first · Open Terminal, type this command and press Enter

    uv --version
    • A version number such as uv … = installed, skip this step
    • "command not found" (on Windows: "is not recognized") = not installed yet, or installed but Terminal needs to be closed and reopened
    How to open Terminal

    Mac: press ⌘ + Space, type Terminal, press Enter

    Windows: open Start, type Windows PowerShell, then Open

    Not installed: uv has no click-through installer. Copy the one-line command for your system (macOS or Windows) from uv’s official page into Terminal · no separate Python install needed; uv downloads it when required

    Open the uv download page ↗

    When it’s done, close Terminal, open it again and run the same command. You should see a version number: uv --version

    Install once; it works for everything that needs uv

  2. Open the Claude desktop app’s settings file

    SettingsDeveloperEdit Config

  3. Paste these settings and save the file

    {
      "mcpServers": {
        "verity": {
          "command": "uvx",
          "args": [
            "verity-mcp"
          ]
        }
      }
    }
  4. Quit Claude and open it again

  5. Try it

    Use Verity MCP and tell me what you can do for me, then show me one thing

    ✓ If Claude says it is using Verity MCP or shows a Verity MCP tool in the answer, you are connected

6 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.

  • VERITY_SUITE_URL Verity suite base URL · default https://verity-suite.onrender.com
  • VERITY_ENGINE_URL Verity engine base URL · default https://api.veritylayer.dev
  • VERITY_PRICE_QUICK Disclosed per-call price for quick_verify · default $0.02
  • VERITY_PRICE_GROUNDED Disclosed per-call price for grounded_verify (Sonnet, web-grounded) · default $0.25
  • VERITY_PRICE_PRO Disclosed per-call price for pro_verify (Opus, premium synthesis) · default $0.35
  • VERITY_PRICE_SUITE Disclosed per-call price for the suite checks (detect_injection/moderate_content/redact_pii/guard_action, /quick tier) · default $0.02

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 Verity MCP yet

Verity MCP 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 Verity MCP

  • Install Python (uv) on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone
  • Install Python (uv) on your computer first (one time)
  • Install Python (uv) on your computer first (one time)
  • Install Python (uv) on your computer first (one time)

B · Others in Other that work with ChatGPT

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

Works with Claude Code, with some setup first

Install Python (uv) on your computer first (one time)

Let AI install it

Copy this message into a Claude Code chat. The AI checks your computer, tells you which file it will change, and waits for your OK every time.

Please install the MCP server Verity MCP for Claude Code on this computer, in this order: 1) Check uv with uv --version. If it is missing, tell me to install it from https://docs.astral.sh/uv/getting-started/installation/; do not install it yourself. 2) Use only this config (already checked by PopNx MCP): claude mcp add --scope user verity -- uvx verity-mcp 3) Tell me the full path of the file you will change, or the command you will run, and wait for my OK. 4) No key is needed. 5) Do what we agreed, then check that the Verity MCP tools really show up.

This message has no key in it. If a key is needed, the AI will ask you to paste it yourself into the file or the app’s field.

  1. Install uv (if you don’t have it)

    Already installed? Check first · Open Terminal, type this command and press Enter

    uv --version
    • A version number such as uv … = installed, skip this step
    • "command not found" (on Windows: "is not recognized") = not installed yet, or installed but Terminal needs to be closed and reopened
    How to open Terminal

    Mac: press ⌘ + Space, type Terminal, press Enter

    Windows: open Start, type Windows PowerShell, then Open

    Not installed: uv has no click-through installer. Copy the one-line command for your system (macOS or Windows) from uv’s official page into Terminal · no separate Python install needed; uv downloads it when required

    Open the uv download page ↗

    When it’s done, close Terminal, open it again and run the same command. You should see a version number: uv --version

    Install once; it works for everything that needs uv

  2. Open Terminal

    Mac: press Command+Space and type Terminal · Windows: open PowerShell

  3. Paste this command and press Enter

    claude mcp add --scope user verity -- uvx verity-mcp
  4. Type /mcp in Claude Code

    You should see Verity MCP listed as connected

  5. Try it

    Use Verity MCP and tell me what you can do for me, then show me one thing

    ✓ If Claude Code says it is using Verity MCP or shows a Verity MCP tool in the answer, you are connected

6 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.

  • VERITY_SUITE_URL Verity suite base URL · default https://verity-suite.onrender.com
  • VERITY_ENGINE_URL Verity engine base URL · default https://api.veritylayer.dev
  • VERITY_PRICE_QUICK Disclosed per-call price for quick_verify · default $0.02
  • VERITY_PRICE_GROUNDED Disclosed per-call price for grounded_verify (Sonnet, web-grounded) · default $0.25
  • VERITY_PRICE_PRO Disclosed per-call price for pro_verify (Opus, premium synthesis) · default $0.35
  • VERITY_PRICE_SUITE Disclosed per-call price for the suite checks (detect_injection/moderate_content/redact_pii/guard_action, /quick tier) · default $0.02

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

Install Python (uv) on your computer first (one time)

Let AI install it

Copy this message into a Cursor chat. The AI checks your computer, tells you which file it will change, and waits for your OK every time.

Please install the MCP server Verity MCP for Cursor on this computer, in this order: 1) Check uv with uv --version. If it is missing, tell me to install it from https://docs.astral.sh/uv/getting-started/installation/; do not install it yourself. 2) Use only this config (already checked by PopNx MCP): { "mcpServers": { "verity": { "command": "uvx", "args": [ "verity-mcp" ] } } } 3) Tell me the full path of the file you will change, or the command you will run, and wait for my OK. 4) No key is needed. 5) Do what we agreed, then check that the Verity MCP tools really show up.

This message has no key in it. If a key is needed, the AI will ask you to paste it yourself into the file or the app’s field.

  1. Install uv (if you don’t have it)

    Already installed? Check first · Open Terminal, type this command and press Enter

    uv --version
    • A version number such as uv … = installed, skip this step
    • "command not found" (on Windows: "is not recognized") = not installed yet, or installed but Terminal needs to be closed and reopened
    How to open Terminal

    Mac: press ⌘ + Space, type Terminal, press Enter

    Windows: open Start, type Windows PowerShell, then Open

    Not installed: uv has no click-through installer. Copy the one-line command for your system (macOS or Windows) from uv’s official page into Terminal · no separate Python install needed; uv downloads it when required

    Open the uv download page ↗

    When it’s done, close Terminal, open it again and run the same command. You should see a version number: uv --version

    Install once; it works for everything that needs uv

  2. Click this button to open Cursor

    Open in Cursor

    Cursor asks you to confirm; click Install

  3. Open the AI chat in Cursor in Agent mode

  4. Try it

    Use Verity MCP and tell me what you can do for me, then show me one thing

    ✓ If Cursor says it is using Verity MCP or shows a Verity MCP tool in the answer, you are connected

6 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.

  • VERITY_SUITE_URL Verity suite base URL · default https://verity-suite.onrender.com
  • VERITY_ENGINE_URL Verity engine base URL · default https://api.veritylayer.dev
  • VERITY_PRICE_QUICK Disclosed per-call price for quick_verify · default $0.02
  • VERITY_PRICE_GROUNDED Disclosed per-call price for grounded_verify (Sonnet, web-grounded) · default $0.25
  • VERITY_PRICE_PRO Disclosed per-call price for pro_verify (Opus, premium synthesis) · default $0.35
  • VERITY_PRICE_SUITE Disclosed per-call price for the suite checks (detect_injection/moderate_content/redact_pii/guard_action, /quick tier) · default $0.02

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

Install Python (uv) on your computer first (one time)

Let AI install it

Copy this message into a VS Code chat. The AI checks your computer, tells you which file it will change, and waits for your OK every time.

Please install the MCP server Verity MCP for VS Code on this computer, in this order: 1) Check uv with uv --version. If it is missing, tell me to install it from https://docs.astral.sh/uv/getting-started/installation/; do not install it yourself. 2) Use only this config (already checked by PopNx MCP): { "servers": { "verity": { "type": "stdio", "command": "uvx", "args": [ "verity-mcp" ] } } } 3) Tell me the full path of the file you will change, or the command you will run, and wait for my OK. 4) No key is needed. 5) Do what we agreed, then check that the Verity MCP tools really show up.

This message has no key in it. If a key is needed, the AI will ask you to paste it yourself into the file or the app’s field.

  1. Install uv (if you don’t have it)

    Already installed? Check first · Open Terminal, type this command and press Enter

    uv --version
    • A version number such as uv … = installed, skip this step
    • "command not found" (on Windows: "is not recognized") = not installed yet, or installed but Terminal needs to be closed and reopened
    How to open Terminal

    Mac: press ⌘ + Space, type Terminal, press Enter

    Windows: open Start, type Windows PowerShell, then Open

    Not installed: uv has no click-through installer. Copy the one-line command for your system (macOS or Windows) from uv’s official page into Terminal · no separate Python install needed; uv downloads it when required

    Open the uv download page ↗

    When it’s done, close Terminal, open it again and run the same command. You should see a version number: uv --version

    Install once; it works for everything that needs uv

  2. Click this button to open VS Code

    Open in VS Code

    VS Code asks you to confirm; click Install

  3. Open the AI chat in VS Code in Agent mode

  4. Try it

    Use Verity MCP and tell me what you can do for me, then show me one thing

    ✓ If VS Code says it is using Verity MCP or shows a Verity MCP tool in the answer, you are connected

6 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.

  • VERITY_SUITE_URL Verity suite base URL · default https://verity-suite.onrender.com
  • VERITY_ENGINE_URL Verity engine base URL · default https://api.veritylayer.dev
  • VERITY_PRICE_QUICK Disclosed per-call price for quick_verify · default $0.02
  • VERITY_PRICE_GROUNDED Disclosed per-call price for grounded_verify (Sonnet, web-grounded) · default $0.25
  • VERITY_PRICE_PRO Disclosed per-call price for pro_verify (Opus, premium synthesis) · default $0.35
  • VERITY_PRICE_SUITE Disclosed per-call price for the suite checks (detect_injection/moderate_content/redact_pii/guard_action, /quick tier) · default $0.02

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 Verity MCP💬 Discussion →
For developers: Terminal commands and JSON settings

Installed on your computer

Claude Code

claude mcp add --scope user verity -- uvx verity-mcp

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "verity": {
      "command": "uvx",
      "args": [
        "verity-mcp"
      ]
    }
  }
}

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "verity": {
      "command": "uvx",
      "args": [
        "verity-mcp"
      ]
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "verity": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "verity-mcp"
      ]
    }
  }
}

Values you fill in

  • VERITY_SUITE_URL env
    Verity suite base URL
  • VERITY_ENGINE_URL env
    Verity engine base URL
  • VERITY_PRICE_QUICK env
    Disclosed per-call price for quick_verify
  • VERITY_PRICE_GROUNDED env
    Disclosed per-call price for grounded_verify (Sonnet, web-grounded)
  • VERITY_PRICE_PRO env
    Disclosed per-call price for pro_verify (Opus, premium synthesis)
  • VERITY_PRICE_SUITE env
    Disclosed per-call price for the suite checks (detect_injection/moderate_content/redact_pii/guard_action, /quick tier)

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

Downloads per weeki
43/wk
Licencei
No licence stated
Connection
Runs on your computer
Latest versioni
0.3.0
Categoryi
Other
Published to registryi
Jul 6, 2026
Code last changedi
Aug 2, 2026
Maker
meloliva14
Packages
pypi: verity-mcp
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

ClaudeGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatRaycast

All apps, with pros and cons →

Related guides

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 15, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account meloliva14, which owns the repo

  • ✓ Pass

    Still maintained

    Code last changed 3 months ago

  • ✕ Fail

    Has a licence

    No licence file found in the repo

  • – 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

Published vulnerabilities (OSV.dev)

Not checked yet

What we check → · JSON

Makers: ask for a re-check or report wrong info

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.

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User reviews

No reviews yet

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Compared with others in Otheri

  • More stars than 0% of the other 19939 servers in this category
  • Published to the registry more recently than 12% of the other 19939 servers in this category
  • Basic checks equal to or better than 45% of the other 19939 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 Verity MCP 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?

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 3 months ago, and the latest version (0.3.0) reached the registry 4 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.

What can I use instead?

In the same category: World Monitor, openstatus, Oh My Posh Validator, Strata, Jitsu

Similar alternatives

Same category, other makers, commands already checked. Official ones first, then by stars.

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

World Monitor

Real-time global intelligence on conflict, markets, energy, trade, shipping and cyber. 97 tools.

by koala73Widely used★ 90.7KUpdated yesterday

Runs in the cloud✓ service owner · worldmonitor.app

openstatus

Manage monitors, status pages, incidents and maintenances in your openstatus workspace.

by openstatusHQWidely used★ 9.3KUpdated 2 months ago

Runs in the cloud✓ service owner · openstatus.dev

Oh My Posh Validator

Validate oh-my-posh configurations and segment snippets against the official schema.

by JanDeDobbeleerWidely used★ 23.8K Stars for the whole repoUpdated 26 days ago

Runs in the cloud✓ service owner · ohmyposh.dev

Strata

MCP server for progressive tool usage at any scale (see https://klavis.ai)

by Klavis-AIGrowing★ 5.8KUpdated 14 months ago

Runs in the cloudRepo archived✓ klavis.ai

Jitsu

Manage Jitsu data pipelines: destinations, streams, connections, functions, live events.

by jitsucomWidely used★ 5.1KUpdated 4 months ago

Runs in the cloud✓ service owner · jitsu.com
  • World Monitor — Runs in the cloud, nothing to install · No key needed
  • openstatus — Runs in the cloud, nothing to install · No key needed
  • Oh My Posh Validator — Runs in the cloud, nothing to install · No key needed
  • Strata — Runs in the cloud, nothing to install · No key needed
  • Jitsu — Runs in the cloud, nothing to install · No key needed

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.

mcp-name: io.github.meloliva14/verity-mcp

Verity MCP — verify before you act

The official Model Context Protocol server for VerityLayer: independent, fail-closed trust checks any MCP-capable agent can discover and call. Fact-check a claim, screen for prompt-injection, catch PII, and gate irreversible actions — each check returns a calibrated verdict and abstains rather than guess. Payment is pay-per-call via x402 (USDC on Base mainnet). Verity holds no private key and never charges silently.

Name note: this is VerityLayer's official server — PyPI package verity-mcp, npm package @veritylayer/mcp. The *npm* package named verity-mcp is an unrelated third-party project.

Tools & pricing (every docstring states its price up front)

ToolPriceGrounded?What it's for
quick_verify$0.02no (Haiku)Cheap reality-check on a claim — the loopable default. Run everywhere, escalate the load-bearing ones.
grounded_verify$0.25yes (Sonnet, live web citations)The default product — web-grounded with cited evidence, for facts that matter before you act on them.
pro_verify$0.35yes (Opus, premium synthesis)The deepest tier — high-stakes claims where the grounded answer isn't confident enough to act on.
verify_receiptfree—Statelessly verify a signed Ed25519 verdict receipt — the audit trail / second opinion, no payment.
detect_injection$0.02—Screen untrusted text / tool output for prompt-injection before acting on it.
moderate_content$0.02—Is this safe to publish? (allow / review / block priced identically — no block-to-bill.)
redact_pii$0.02—Does this leak PII or secrets? Returns findings + a redacted version.
guard_action$0.02—The money-line gate: allow / review / block right before an irreversible action.

Quickstart

With uv (recommended — Claude Desktop / any MCP client):

{

"mcpServers": { "verity": { "command": "uvx", "args": ["verity-mcp"] } } }

Or with pip:

pip install verity-mcp

verity-mcp # stdio MCP server

That gets you the tools and the free verify_receipt. To get paid verdicts, read the next section — it's the part most people trip on.

How payment works

Verity's endpoints answer HTTP 402 (Payment Required) until the disclosed USDC micro-payment is settled. There are two ways to do that.

Wallet mode — get real verdicts (recommended)
{

"mcpServers": { "verity": { "command": "uvx", "args": ["--from", "verity-mcp[x402]", "verity-mcp"], "env": { "VERITY_WALLET_KEY": "0x…" } } } }

Point VERITY_WALLET_KEY at a funded Base-mainnet wallet and this server settles each call itself — the paid tools return real verdicts. Your key never leaves the process: it signs an EIP-3009 authorization locally for the exact amount each challenge discloses, and Verity only ever receives the signature. Nothing is charged silently; every price is disclosed up front.

Use a dedicated, low-balance wallet. This key can spend. Fund it with a few dollars of USDC on Base — calls cost $0.02–$0.35.

Keyless — the default

With no key set, this server holds nothing and pays nothing: a 402 is surfaced transparently (price restated, challenge attached) for an x402-capable caller to settle.

Be aware of the honest caveat: no shipping MCP client — Claude Desktop, Claude Code, Cursor, Windsurf — settles x402 today. So in keyless mode the paid tools will return payment_required and no verdict, forever. That's not a bug and it isn't hidden: the response says NO VERDICT WAS PRODUCED. Do not proceed as if this returned allow. If you want verdicts from an ordinary MCP client, use wallet mode.

verify_receipt is a free route, never 402s, and needs no wallet — you can check our signatures before you ever pay us.

Signed receipts — don't take Verity's word for it

Every paid verdict ships with an Ed25519-signed receipt: self-contained cryptographic proof of exactly what Verity said about exactly what claim, verifiable forever. Check any receipt free with the verify_receipt tool, offline against the public key at /.well-known/verity-pubkey.json, or live: curl https://api.veritylayer.dev/receipt/selftest.

Configuration (all optional)

Env varDefaultPurpose
VERITY_WALLET_KEY*(unset — keyless)*Optional. Private key of a funded Base wallet. Set it (with the [x402] extra) and this server settles its own payments, so paid tools return real verdicts. Never leaves the process; never logged.
VERITY_ENGINE_URLhttps://api.veritylayer.devFlagship claim-verification engine
VERITY_SUITE_URLhttps://suite.veritylayer.devTrust-check suite (injection/moderation/PII/guardrail)
VERITY_TIMEOUT90HTTP timeout (seconds)
VERITY_PRICE_QUICK$0.02Disclosed price echo for quick_verify
VERITY_PRICE_GROUNDED$0.25Disclosed price echo for grounded_verify
VERITY_PRICE_PRO$0.35Disclosed price echo for pro_verify
VERITY_PRICE_SUITE$0.02Disclosed price echo for the suite checks

Referral tag (reserved)

Every tool accepts an optional affiliate_id, forwarded as an X-Verity-Ref header. It never changes price, gating, or the verdict — it only tags who routed the call, and it is reserved for a future referral program: no split is paid today, and none will be until public terms are published at veritylayer.dev.

Links

  • Website: https://veritylayer.dev · Manifesto: https://veritylayer.dev/manifesto/
  • Live API + discovery: https://api.veritylayer.dev/llms.txt · /.well-known/x402.json
  • npm client: @veritylayer/mcp
  • Contact: veritylayer@gmail.com

*Independent · fail-closed · keyless · pay-per-call. The only trust form an autonomous agent can pick up mid-task with no human and no account.*