WebKit

Name: WebKit
Author: OlsOls4

by OlsOls4version 1.1.0i★ –iRuns in the cloud

Registry nameio.github.OlsOls4/webkit

Install

Overview

Description from the maker (original English)

Email validation, link previews and article-to-Markdown extraction for AI agents

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 in the cloud
Transport: Streamable HTTP
Category: Chat & email
You need to fill in: X-RapidAPI-Key, X-RapidAPI-Host

Install

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

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
You fill in yourself: X-RapidAPI-Key, X-RapidAPI-Host

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

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Run this in your terminal

claude mcp add --transport http webkit https://webkit-email-validator-link-preview-article-extractor.p.rapidapi.com/mcp --header 'X-RapidAPI-Key: your-value' --header 'X-RapidAPI-Host: your-value'

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": {
    "webkit": {
      "url": "https://webkit-email-validator-link-preview-article-extractor.p.rapidapi.com/mcp",
      "headers": {
        "X-RapidAPI-Key": "your-value",
        "X-RapidAPI-Host": "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": {
    "webkit": {
      "type": "http",
      "url": "https://webkit-email-validator-link-preview-article-extractor.p.rapidapi.com/mcp",
      "headers": {
        "X-RapidAPI-Key": "your-value",
        "X-RapidAPI-Host": "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 address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

X-RapidAPI-Key secret required HTTP header
Your RapidAPI key (subscribe to WebKit on RapidAPI; free plan available)
X-RapidAPI-Host required HTTP header
RapidAPI host for this API

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

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

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 OlsOls4, 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 checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Chat & emaili

More stars than 0% of the other 1770 servers in this category
Published to the registry more recently than 55% of the other 1770 servers in this category
Basic checks equal to or better than 100% of the other 1770 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 WebKit 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: X-RapidAPI-Key, X-RapidAPI-Host

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.1.0) reached the registry 23 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Vexa, emailmd, MCP WhatsApp Cloud

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

Vexa

by Vexa-ai

Meeting bot and transcripts for Google Meet, Teams and Zoom. Live or after, speakers labelled.

Runs in the cloud★ 2,949Apache-2.0Updated 2 months ago

Install

emailmd

by anypost

Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.

Computer or cloud★ 1,385MITUpdated 31 days ago

Install

MCP WhatsApp Cloud

by codespar

MCP server for WhatsApp Cloud API (Meta) — messages, media, and templates via Graph API

Runs on your computer★ 277MITUpdated 5 months ago

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.

Developer utility APIs + remote MCP servers

Thirteen small, focused REST APIs for everyday developer jobs: validating emails, phones and IBANs, IP geolocation, PDFs, images, QR codes, fraud scoring, token counting and more. Each one is its own product on RapidAPI with a free plan, full OpenAPI docs, and a built-in remote MCP server so AI agents (Claude, Cursor, VS Code, n8n, LangChain) can call it as tools.

Free tier on every API: subscribe on RapidAPI, copy your key, call it.
MCP built in: every API exposes Streamable HTTP MCP at https:// .p.rapidapi.com/mcp, and each is listed in the official MCP Registry as io.github.OlsOls4/ .
No heavy dependencies on your side: plain HTTPS + JSON from any language or no-code tool.

The APIs

API	What it does	RapidAPI	MCP endpoint	Tutorial
WebKit	Email validation, link previews and article-to-Markdown extraction for AI agents	Listing	`https://webkit-email-validator-link-preview-article-extractor.p.rapidapi.com/mcp`	dev.to
DomainKit	DNS records, SSL certificate, WHOIS/RDAP and website tech scan for any domain	Listing	`https://domainkit-dns-ssl-whois-website-tech-lookup.p.rapidapi.com/mcp`	dev.to
QRKit	Generate QR codes (URL, WiFi, vCard) and barcodes as PNG/SVG	Listing	`https://qrkit-qr-code-barcode-generator.p.rapidapi.com/mcp`	dev.to
TextKit	Sentiment, language detection, readability, keywords, summaries and profanity filtering	Listing	`https://textkit-sentiment-language-readability-keywords.p.rapidapi.com/mcp`	dev.to
PhoneKit	Phone number validation, formatting, carrier, line type and timezone	Listing	`https://phonekit-phone-number-validation-carrier-line-type.p.rapidapi.com/mcp`	dev.to
ValidKit	Validate IBAN, EU VAT, card numbers, ISBN, BIC, EAN and postcodes	Listing	`https://validkit-iban-vat-card-isbn-bic-postcode-validator.p.rapidapi.com/mcp`	dev.to
GeoIP	IP geolocation: country, continent, ASN and ISP lookup	Listing	`https://geoip-ip-geolocation-asn-isp-lookup.p.rapidapi.com/mcp`	dev.to
DocKit	Extract text and metadata from PDFs; convert Markdown or text to PDF	Listing	`https://dockit-pdf-text-extraction-markdown-to-pdf.p.rapidapi.com/mcp`	dev.to
FraudKit	Fraud risk score for signups and orders from email, IP, phone and user-agent	Listing	`https://fraudkit-fraud-risk-score-for-signups-orders.p.rapidapi.com/mcp`	dev.to
ImageKit	Resize, convert to WebP, compress, crop, rotate and strip EXIF from images	Listing	`https://imagekit-resize-convert-to-webp-compress-crop.p.rapidapi.com/mcp`	dev.to
UK PostcodeKit	UK postcode lookup, nearest postcodes, autocomplete and distance (OS open data)	Listing	`https://uk-postcodekit-postcode-lookup-nearest-distance.p.rapidapi.com/mcp`	dev.to
LLMKit	Token counting, RAG chunking, truncation, HTML to Markdown and JSON repair	Listing	`https://llmkit-token-counter-rag-chunker-json-repair.p.rapidapi.com/mcp`	dev.to
CalKit	Public holidays for 150+ countries, business-day maths and timezone lookup	Listing	`https://calkit-public-holidays-business-days-timezones.p.rapidapi.com/mcp`	dev.to

Also available (newer):

CurrencyKit: ECB euro reference exchange rates: latest, historical, time series and currency conversion. RapidAPI · MCP https://currencykit-ecb-exchange-rates-currency-converter.p.rapidapi.com/mcp
VATKit: Live EU VAT number checks via VIES with company name/address, VAT formats and EU VAT rates. RapidAPI · MCP https://vatkit-eu-vat-number-check-vies-vat-rates.p.rapidapi.com/mcp

Quickstart (REST)

curl -G "https://calkit-public-holidays-business-days-timezones.p.rapidapi.com/business-days/add" \

-d date=2026-12-23 -d days=5 -d country=GB -d subdiv=ENG \ -H "X-RapidAPI-Key: YOUR_RAPIDAPI_KEY" \ -H "X-RapidAPI-Host: calkit-public-holidays-business-days-timezones.p.rapidapi.com"

Swap the host for any API in the table. Every request goes through RapidAPI with X-RapidAPI-Key and X-RapidAPI-Host.

Quickstart (MCP)

Add any API as a remote MCP server in a client that supports Streamable HTTP with custom headers, for example:

"mcpServers": { "calkit": { "type": "http", "url": "https://calkit-public-holidays-business-days-timezones.p.rapidapi.com/mcp", "headers": { "X-RapidAPI-Key": "YOUR_RAPIDAPI_KEY", "X-RapidAPI-Host": "calkit-public-holidays-business-days-timezones.p.rapidapi.com" } } } }

The server answers tools/list with that API's endpoints as tools.

What's in this repo

main.py and one folder per API (webkit, domainkit, qrkit, ...): the FastAPI service behind all listings.
mcpserver.py: the MCP layer that turns each API's routes into tools.
openapi/: OpenAPI specs for each API.
mcp-registry/: server.json files published to the official MCP Registry.

Data and licences

GeoIP and FraudKit use DB-IP Lite (CC BY 4.0). UK PostcodeKit uses OS Code-Point Open (Open Government Licence v3.0; contains OS data © Crown copyright and database right). PhoneKit uses Google libphonenumber (Apache 2.0). Full attributions are in each API's docs on RapidAPI.

Support

Questions, bugs or feature requests: open an issue or use the Discussions tab on the RapidAPI listing.

WebKit

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 Chat & emaili

Common questions

Alternatives

Vexa

emailmd

MCP WhatsApp Cloud

README from the maker

Developer utility APIs + remote MCP servers

The APIs

Quickstart (REST)

Quickstart (MCP)

What's in this repo

Data and licences

Support