One Million Tools MCP Server

by lucas-project Your server? Claim it

answering

One Million Tools is answering right now. Last checked 6 min ago. It exposes 42 tools.

42 free deterministic utilities: JSON, CSV, YAML, encoding, hashing, JWT, cron, formatters, CSS.

Uptime history 4 days of history

4 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

382 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check One Million Tools every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 6 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add one-million-tools --transport http https://tools-empire-mcp.lucas-qin-au.workers.dev/mcp

Settings → Connectors → Add custom connector, then paste this address

https://tools-empire-mcp.lucas-qin-au.workers.dev/mcp

~/.codex/config.toml

[mcp_servers.one-million-tools]
url = "https://tools-empire-mcp.lucas-qin-au.workers.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "one-million-tools": {
      "url": "https://tools-empire-mcp.lucas-qin-au.workers.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "one-million-tools": {
      "type": "http",
      "url": "https://tools-empire-mcp.lucas-qin-au.workers.dev/mcp"
    }
  }
}

Available tools 42

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

csv

csv_filter

Filter CSV rows by a column predicate (equals / contains / regex / gt / gte / lt / lte / not-empty).

csv_parse

Parse CSV text into fields + preview rows with delimiter detection.

csv_sort

Sort CSV rows by one column (alpha or numeric).

csv_split

Split a CSV into N chunks or into files of N rows each.

csv_statistics

Compute per-column summary statistics (count, min, max, mean, median) over a CSV.

csv_to_json

Parse CSV text into a JSON array of objects.

json

json_diff

Diff two JSON documents and return added/removed/changed keys.

json_format

Pretty-print JSON with configurable indentation (2 spaces, 4 spaces, or tab).

json_minify

Compress JSON by stripping whitespace.

json_to_csv

Convert an array of JSON objects to CSV.

json_to_yaml

Convert JSON to YAML.

json_validate

Validate JSON syntax and return the parsed value or a line/column error.

css

css_border_radius_build

Build a CSS border-radius value from four corner radii in px.

css_box_shadow_build

Build a CSS box-shadow value from one or more layers.

css_contrast_check

Compute the WCAG contrast ratio between two colors and the AA/AAA verdict.

css_format

Pretty-print CSS.

css_gradient_build

Build a CSS linear-gradient string from color stops + angle.

markdown

markdown_format

Normalize Markdown (list markers, trailing whitespace, blank lines).

markdown_preview

Render Markdown to an HTML preview fragment with word/char counts.

markdown_to_html

Convert Markdown to HTML.

base64

base64_decode

Base64 string → UTF-8 text.

base64_encode

UTF-8 text → Base64 string.

url

url_decode

Decode percent-encoded URL text.

url_encode

Percent-encode a string (component or full URI mode).

yaml

yaml_format

Pretty-print YAML.

yaml_to_json

Convert YAML to pretty-printed JSON.

color

color_convert

Convert a HEX color into RGB / HSL / HSV / CSS forms.

cron

cron_explain

Explain a cron expression in plain English.

env

env_redact

Redact secrets (API keys, tokens, passwords) from logs / config / env text.

format

js_format

Pretty-print JavaScript / TypeScript with Prettier.

hash

hash_text

Compute a SHA-1 / SHA-256 / SHA-512 hex digest of UTF-8 text.

html

html_format

Pretty-print HTML.

jwt

jwt_decode

Decode a JWT header + payload. Does not verify the signature.

Endpoints

URL	Transport	State	Latency	Checked
https://tools-empire-mcp.lucas-qin-au.workers.dev/mcp	streamable-http	answering	249 ms	6 min ago

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One Million Tools — questions

Answers built from our own checks of this server.

What can One Million Tools do?

It exposes 42 tools, read directly from the server on our last check. Among them: base64_decode, base64_encode, color_convert, cron_explain, css_border_radius_build, css_box_shadow_build and 36 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

What is One Million Tools mostly used for?

Its tools cluster around csv, json and css. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.

Is One Million Tools working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 382 ms. The bar chart above shows every period we have measured.

How do I connect One Million Tools?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does One Million Tools need an API key?

No. One Million Tools completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 42 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is One Million Tools?

It answers our handshake in 382 ms on average, which is faster than 38% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.