Free public preview · No API key

Remote MCP developer tools for AI agents

Connect any Streamable HTTP MCP client to 86 deterministic utilities for blockchain data, web security, API and document parsing, text conversion, networking, and engineering calculations.

MCP endpoint

https://mcp.toolbox.souus.com/mcp

Connect your agent

Clients with native remote MCP support can use the endpoint directly. Desktop clients can use mcp-remote.

{
  "mcpServers": {
    "souus-tools": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "https://mcp.toolbox.souus.com/mcp"
      ]
    }
  }
}

Built for safe public use

No account, API key, or model subscription.
No arbitrary URL fetching, browser automation, or secret-handling tools.
Request, response, execution-time, and IP rate limits.
The same tested pure functions power the website and MCP server.

86 tools available to agents

Blockchain & cryptography

Keccak-256

Ethereum Checksum Address

Convert Ethereum Units

Convert Base58 and hex

Build Merkle Root

Inspect JWKS

Generate SRI hashes

Encode ABI Selector

Inspect Ethereum Transaction

Web, API & security

Evaluate CSP

Analyze HAR

Generate Social Meta Tags

Build Cache Control

Decode Certificate Pem

Evaluate Cors Headers

Build CSP Header

Lookup HTTP Status Codes

Summarize OpenAPI

Parse Robots Txt

Audit SEO Meta

Build Favicon Markup

Build Image Placeholder

Transform URL Component

Render Markdown Preview

Data & text

Render Ascii Text

Convert Base64 String

Transform HTML Entities

Format JSON

Generate or validate JSON Schema

Evaluate JSONPath

Convert Data Format

Convert ENV, JSON, and YAML

Analyze CSV Table

Generate Markdown Table

Normalize List

Lookup Mime Types

Convert Number Base

Generate Numeronym

Convert Roman Numerals

Generate Slug

Format SQL

Obfuscate String

Convert Text Case

Inspect Text Encoding

Summarize Text Statistics

Convert Text Binary

Spell Nato Alphabet

Convert Text Unicode

Inspect Unicode Character

Networking & identifiers

Analyze CIDR

Normalize Email Addresses

Validate IBAN

Convert IPv4 address

Expand IPv4 range

Lookup MAC Address Vendor

Format Phone Number

Decode Safelink URL

Parse User Agent

Developer workflow & config

Summarize Benchmark Runs

Explain Cron Schedule

Convert Docker Run Compose

Lint Dockerfile

Convert Figma Tokens

Generate Commit Message

Build Nginx Server Block

Sort Tailwind Classes

Compare Text Diff

Calculate Chmod Permissions

Math, time & measurement

Calculate Matrix

Calculate Statistics

Prime Factorization

Solve Quadratic

Calculate DPI Pixels

Calculate Aspect Ratio

Calculate Transfer Time

Analyze Color Contrast

Convert Hex Rgb Color

Convert Rgb Color Space

Convert CSS Units

Convert Date Time

Calculate Eta

Convert Filetime

Calculate Percentages

Calculate Power Of Two Texture

Convert Units

Convert Unix Timestamp

Frequently asked questions

Is the Souus Tools MCP server free?

Yes. The public preview is free and does not require an account or API key. Anonymous requests are rate-limited to keep the service available.

Does the MCP server send data to an AI model?

No. The server executes deterministic utility functions. It does not call an AI model or fetch arbitrary remote URLs.

Which MCP transport does it support?

The endpoint uses stateless Streamable HTTP, the current transport for remote MCP servers.