nintact

Name: nintact
Author: homareyoshizaki

by homareyoshizakiversion 0.5.2i★ –iRuns on your computer

Registry namecom.nintact/nintact

Install

Overview

Description from the maker (original English)

Contact forms that actually arrive. No SPF/DKIM, no SMTP. AI sorts them and drafts the reply.

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: Other
You need to fill in: NINTACT_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: NINTACT_API_KEY

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": {
    "nintact": {
      "command": "npx",
      "args": [
        "-y",
        "nintact-mcp"
      ],
      "env": {
        "NINTACT_API_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add nintact --env NINTACT_API_KEY=your-value -- npx -y nintact-mcp

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": {
    "nintact": {
      "command": "npx",
      "args": [
        "-y",
        "nintact-mcp"
      ],
      "env": {
        "NINTACT_API_KEY": "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": {
    "nintact": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "nintact-mcp"
      ],
      "env": {
        "NINTACT_API_KEY": "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

NINTACT_API_KEY secret env
API key. Run `npx nintact-mcp login` to create one without pasting it, or issue one at https://nintact.com/dashboard/settings/connect

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 against the domain nintact.com (the registry checks domain ownership)
… 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 Otheri

More stars than 0% of the other 32398 servers in this category
Published to the registry more recently than 45% of the other 32398 servers in this category
Basic checks equal to or better than 100% of the other 32398 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 nintact 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: NINTACT_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 (0.5.2) reached the registry 2 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: Spec Driven Development, Remote Desktop Commander, AI Deprecations

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

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Runs on your computer★ 440MITUpdated 14 months ago

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Remote Desktop Commander

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Runs in the cloud★ 211Updated yesterday

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Runs in the cloudUpdated today

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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.

nintact-mcp

MCP server for nintact — a contact form you paste in one line, an AI that sorts what comes in and drafts the reply, and delivery that needs no DNS work.

Build the form, read the inbox, and approve replies without leaving your editor.

Why this exists

A site built with an AI assistant usually works until the contact form. Then the mail silently stops: Gmail and Yahoo! reject mail from a domain with no SPF/DKIM, and the person who built the site finds out weeks later, from the customer who never got an answer.

nintact sends over an already-authenticated domain with Reply-To pointing at your own address, so replies reach you without you touching DNS, SMTP, or a mail provider.

Install

npx nintact-mcp login                          # 6-digit code by email; the key is stored, not pasted

claude mcp add nintact -- npx -y nintact-mcp

login writes the key to ~/.nintact/config.json (0600). Passing it on the command line also works and is what CI wants:

claude mcp add nintact --env NINTACT_API_KEY=nk_live_... -- npx -y nintact-mcp

Prefer login on a person's own machine — a key typed into a command ends up in shell history and in the client's config file in plaintext.

No `claude` on PATH?

The desktop app alone does not install the CLI. Add this at the top level of ~/.claude.json. A session that is already open will not pick it up; open a new one.

"mcpServers": { "nintact": { "type": "stdio", "command": "npx", "args": ["-y", "nintact-mcp"] } } }

Any MCP client works — Cursor, Codex CLI, Claude Desktop. ChatGPT itself cannot: its connectors only accept a server published over HTTPS, not one run locally.

Works without an account

check_deliverability needs no API key. It reads public DNS and tells you whether a domain can actually get mail delivered — which is usually the question, before anyone has signed up for anything.

check_deliverability("example.com")

→ { spf: "missing", dmarc: "missing", verdict: "will_be_rejected", next_step: "..." }

Tools

32 tools covering the same surface as the REST API. No screen-only features.

Area	Tools
Diagnose	`check_deliverability`
Forms	`design_form`, `create_form`, `list_forms`, `get_form`, `update_form`, `duplicate_form`, `delete_form`
Look	`set_form_logo`, `remove_form_logo`
Inbox	`list_messages`, `get_message`, `update_message_status`
Replies	`regenerate_draft`, `update_draft`, `approve_draft`
Grounding	`list_knowledge`, `add_knowledge`, `update_knowledge`, `delete_knowledge`, `scan_site_for_knowledge`
Workspace	`get_organization`, `update_organization`, `transfer_workspace`, `get_usage`
Email in	`list_inbound_addresses`, `create_inbound_address`, `delete_inbound_address`
Own domain	`get_sending_domain`, `set_sending_domain`, `verify_sending_domain`, `remove_sending_domain`

Every error carries a next_step field describing how to recover, so an agent can fix its own mistake instead of giving up on the tool.

Things worth knowing before you point this at someone's account

`approve_draft` sends a real email. Confirm with the person first. nintact never sends without an explicit approval, and neither should you.
Call `get_organization` (or the API's `GET /me`) first. It returns the workspace name and how many forms already exist. If that count is not zero, reuse a form instead of adding one — inquiries split across two forms land in two places, and the owner only watches one.
Notifications are held until the address confirms. Setting notify_emails emails a confirmation link to each address. Until someone opens it, submissions are stored and visible in the dashboard but no notification goes out. Tell the owner to check their mail.
AI can be switched off per form. update_form with mode: "relay" forwards everything untouched — no classification, no draft, nothing sent to a model.

Verifying an install without creating a real inquiry

curl -X POST 'https://nintact.com/api/f/YOUR_FORM_ID?dry_run=1' \

-H 'Content-Type: application/json' \ -d '{"name":"Test","email":"test@example.com","message":"checking the install"}'

Everything is checked as in a real submission, then nothing is stored and nobody is notified. 200 with {"data":{"ok":true,...}} means the install is correct. Use this instead of sending a real submission to someone else's inbox.

Docs

https://nintact.com/llms.txt — one screen, enough to install
https://nintact.com/llms-full.txt — the full API
npm: nintact (client + CLI), nintact-mcp

License

MIT

nintact

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 Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

AI Deprecations

README from the maker

nintact-mcp

Why this exists

Install

No claude on PATH?

Works without an account

Tools

Things worth knowing before you point this at someone's account

Verifying an install without creating a real inquiry

Docs

License

No `claude` on PATH?