MCP server · v0.107.0

300+ developer tools
for your AI assistant

300+ utilities (JSON, JWT, hashing, cron, SQL, color, text and more) plus 20+ AI tools for regex, commit messages, Dockerfiles and error explanations. Connect Claude.ai with one sign-in, or run it on your machine with npx.

Connect in 2 minutes Browse all tools

Hosted

https://mcp.utilix.tech

Streamable HTTP · OAuth sign-in or API key

Local

npx -y @utilix-tech/mcp

stdio · Node.js 18+ · works offline

Tools

300+ local, 20+ AI

AI tools use your free account's monthly limit

Version

v0.107.0

Registry: io.github.utilix-tech/utilix-mcp

Connect

Same tools either way. Pick how you want to run them.

1In Claude.ai or Claude Desktop, open Settings → Connectors (or Customize → Connectors).
2Choose Add custom connector, name it Utilix, and paste the URL below.
3Click Connect and sign in with your Utilix account (free). No API key to copy.
4In a chat, check that Utilix is switched on under the + menu, then just ask, e.g. “Use Utilix to format this JSON”.

https://mcp.utilix.tech

Signing in links the connector to your Utilix account. Each tool call counts toward your plan's daily request limit; the AI tools also use your monthly AI limit.

Just ask

Your assistant picks the right tool. A few things people ask:

“Format this JSON and generate TypeScript interfaces for it”

“Decode this JWT and tell me when it expires”

“Hash this password with bcrypt, then verify it”

“When does this cron expression next run, in UTC?”

“Convert these variable names to snake_case”

“Format this SQL query with proper indentation”

“Is #3b82f6 on white readable? Check the contrast ratio”

“Generate a 32-character password with symbols”

“Write a regex that matches US ZIP codes, with or without +4”AI

“Write a commit message for this diff”AI

“Explain this Dockerfile and flag anything risky”AI

“What does this stack trace mean and how do I fix it?”AI

All 300+ tools

Live from the hosted server (v0.107.0). The local package has the same tools.

align_markdown_tables
Reformat every GitHub-Flavored-Markdown pipe table in a document so each column's pipes line up visually, padding cells to the widest content in that column...
analyze_caption_speed
Parse an SRT or WebVTT file and report the words-per-minute reading speed implied by each cue's word count and duration, flagging cues that exceed common bro...
analyze_email_headers
Parse a raw email header block (e.g.
analyze_keyword_density
Count keyword or phrase frequency and density (occurrences per 100 words) across a block of text, the way an SEO keyword-density checker does.
analyze_regex_groups
Parse a regex pattern's capture groups (numbered and named) and backreferences, and flag any backreference pointing at a group that doesn't exist or hasn't f...
analyze_sentence_lengths
Split text into sentences and report a histogram of sentence lengths in words, plus mean, median, standard deviation, and a consistency label.
apply_json_merge_patch
Apply an RFC 7396 JSON Merge Patch document to a target JSON document and return the merged result.
apply_json_patch
Apply a sequence of RFC 6902 JSON Patch operations (add, remove, replace, move, copy, test) to a target JSON document and return the result, or an error nami...
audit_css_custom_properties
Audit a CSS stylesheet's custom-property (`--name`) declarations against their `var(--name)` usages: which ones are declared but never referenced, referenced...
audit_dependency_ranges
Parse a package.json's dependencies, devDependencies, peerDependencies, and optionalDependencies fields, classify each version specifier's range type, and fl...
audit_markdown_image_alt_text
Scan a Markdown document's inline images (`![alt](src)`) and flag alt text accessibility smells: missing/empty alt text, a generic placeholder word used alon...
base32_decode
Decode a Base32 string.
base32_encode
Encode a string to Base32.
base58_decode
Decode a Base58 string back to text.
base58_encode
Encode text as Base58 (Bitcoin-address style, no ambiguous 0/O/I/l characters).
base62_decode
Decode a Base62 string back to text.
base62_encode
Encode text as Base62 (alphanumeric, URL-safe, no punctuation).
base64_decode
Decode a Base64 string.
base64_encode
Encode a string to Base64.
bcrypt_hash
Hash a password using bcrypt.
bcrypt_verify
Verify a password against a bcrypt hash.
build_accept_language
Build an Accept-Language request-header value from a list of locale/quality pairs, sorting by descending quality (ties keep their original order) and omittin...
build_alt_svc_header
Build an Alt-Svc response-header value (RFC 7838) from one or more alternative services, each a protocol-id (e.g.
build_basic_auth_header
Build a `Basic` Authorization header value (RFC 7617, base64 of `username:password`) from a username and password.

Good to know

Does my data leave my machine?

With the local server, the 300+ utilities never send anything anywhere; only AI tools call Utilix. With the hosted server, tool inputs are sent to Utilix to run. We record which tool ran and when, never what you sent.

What are the limits?

Local utilities: none. Hosted tool calls count toward your plan’s daily request limit (1,000 a day free) and AI tools toward your monthly AI limit, shared with the website. At a limit your assistant gets a clear message saying so; the daily limit resets at midnight UTC.

How do I get new tools?

New tools ship most days. The hosted server updates on its own; npx -y fetches the latest version the next time your client starts the server.

It isn’t showing up in my client

Restart the client after editing its config, and check node --version is 18 or newer for the local server. In Claude.ai, make sure Utilix is switched on under the + menu in the chat.

Docs

Every Utilix surface: REST, SDKs, MCP

API Playground

281 REST endpoints to try live

Node.js SDK

The same tools, in-process

Python SDK

pip install utilix-sdk

Connect

Just ask

All 300+ tools

Good to know

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