hub Model Context Protocol

Give your AI assistant real tools

Connect ToolBox to Claude, Cursor, or any MCP-compatible client and your assistant can look up DNS records, convert Word or PDF files, remove image backgrounds, check certificates and hash passwords - on its own, mid-conversation.

30tools
100free credits / month
0setup cost
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Free to start. No card, no subscription.

What is MCP?

The Model Context Protocol is an open standard that lets an AI assistant call external tools. Without it, a model can only tell you how to check a domain's mail records. With it, the model actually checks them and answers from the real result.

Our server exposes every endpoint in the catalogue as an MCP tool, complete with its input schema and its credit cost - so the assistant knows both how to call it and what it will spend.

1

You ask a question in Claude or Cursor

→
2

The model picks a tool and calls our server

→
3

We run it, charge credits and return real data

→
4

The model answers from the actual result

Connect in one step

Pick your client, paste the config, restart. That is the whole setup.

Create .cursor/mcp.json in your project (or edit the global one in Settings → MCP), paste this and reload. Cursor talks HTTP natively, so nothing is installed locally.

.cursor/mcp.json
{
  "mcpServers": {
    "toolbox": {
      "url": "https://toolkitbackend-j69m.onrender.com/api/v1/mcp",
      "headers": {
        "Authorization": "Bearer tb_live_<your_api_key>"
      }
    }
  }
}
key

Replace tb_live_<your_api_key> with a real key. Sign in above, then create one on the API keys page - it takes a few seconds.

Tools your assistant gets

Full reference →

Every tool below appears automatically once connected. Prices are per call and shown to the model, so it can prefer a cheap lookup over an expensive crawl.

Network & DNS

dns-lookup1 cr

Resolve A, AAAA, MX, TXT, NS, CNAME or SOA records for a hostname.

ssl-check2 cr

Inspect a host's TLS certificate: issuer, expiry, subject alternative names and chain.

ip-lookup1 cr

Geolocate an IPv4 or IPv6 address and identify its network operator.

reverse-ip1 cr

Find the PTR/reverse DNS hostname an IP address resolves back to.

ping2 cr

Measure latency, jitter and packet loss for a host.

smtp-test3 cr

Diagnose a mail server: connectivity, TLS, certificate and AUTH.

Web & HTTP

http-request2 cr

Send an HTTP request from our servers and get back status, headers and body.

redirect-chain2 cr

Follow every hop a URL redirects through and report each status code.

broken-links10 cr

Fetch a page, extract its links and report which ones are dead.

web-scrape3 cr

Extract title, metadata, headings, links, images and text from a page.

SEO & Content

seo-meta2 cr

Pull title, description, canonical, robots, Open Graph and Twitter Card data from a page.

Hashing & Passwords

hash-text1 cr

Compute an MD5, SHA-1, SHA-256 or SHA-512 digest of a string.

bcrypt-hash2 cr

Hash a password with BCrypt at a chosen work factor.

bcrypt-verify2 cr

Check a plaintext password against a BCrypt hash.

argon2-hash3 cr

Hash a password with Argon2id, the current password-hashing recommendation.

argon2-verify3 cr

Check a plaintext password against an Argon2 hash.

Data & Utility

qr-generate1 cr

Generate a QR code PNG for any text or URL.

currency-rates1 cr

Fetch current exchange rates for a base currency.

gold-price1 cr

Live gold or silver price per ounce, gram and tola, with karat breakdown.

Documents

pdf-metadata2 cr

Read title, author, producer, dates and page count from a PDF.

word-to-pdf15 cr

Convert a Word, ODT or RTF document to PDF via LibreOffice.

ppt-to-pdf15 cr

Convert a PowerPoint or ODP deck to PDF via LibreOffice.

pdf-to-word20 cr

Convert a PDF to a DOCX file, keeping layout, tables and fonts.

pdf-to-excel20 cr

Extract tables from a PDF into an XLSX workbook.

pdf-to-ppt20 cr

Convert a PDF into a PPTX deck, one slide per page.

Images

remove-background25 cr

Remove an image background with AI and return a transparent PNG.

image-upscale30 cr

Enlarge an image 2x or 4x with Real-ESRGAN.

website-screenshot25 cr

Render a live web page to a PNG or JPEG with headless Chromium.

html-to-image25 cr

Render supplied HTML and CSS to a PNG or JPEG with headless Chromium.

watermark-image2 cr

Stamp text across an image at a chosen position and opacity.

Things to ask once connected

  • “What are the MX records for example.com, and is the SSL certificate expiring soon?”
  • “Check every link on this page and tell me which ones are broken.”
  • “Trace what this shortened URL actually redirects to before I click it.”
  • “Pull the Open Graph tags from this page and tell me why the preview looks wrong.”
  • “Which country is this IP address in, and is it a hosting provider or a home connection?”

The assistant decides which tools to call and can chain several in one answer.

Costs and limits

100 free credits every month

Plus a welcome grant when you sign up. Enough to evaluate everything without paying.

You are only charged for successful calls

Invalid requests are free, and anything that fails on our side is refunded automatically.

Prices reflect real work

A cached DNS answer costs 1 credit; a crawl making 31 requests costs 10. Each price is published with its reasoning.

Nothing expires

Purchased credits carry over indefinitely. No subscription and no minimum spend.

Full price list →Detailed setup guide →Error reference →