Name: One Million Tools
Author: lucas-project

One Million Tools MCP

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

Tool-list grade A Remote · Streamable HTTP No auth needed 42 tools v0.1.0

No reviews yet by lucas-project The publisher’s own endpoint — this marketplace is not in the path

96/100

tool-list score

tools declared

remote

at its publisher

—

calls last 7d

What it does

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

Quickstart

# 1 — add it to Claude Code
claude mcp add --scope user --transport http one-million-tools-mcp https://tools-empire-mcp.lucas-qin-au.workers.dev/mcp

# 2 — ask your agent for something these tools do
#   json_format, json_minify, json_validate and 39 more

One Million Tools costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.

Publishernot claimed

lucas-project1 server

1 category

All 1 server

Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.

Tool surface

What the model actually sees. Descriptions are diffed on every release — see version history.

Only tools that write or reach the network

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

Parameter	Type	Required	Notes
input	string	yes	Raw JSON text to format.
indent	string	no	—

Compress JSON by stripping whitespace.

Parameter	Type	Required	Notes
input	string	yes	—

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

Parameter	Type	Required	Notes
input	string	yes	—

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

Parameter	Type	Required	Notes
left	string	yes	—
right	string	yes	—

Convert JSON to YAML.

Parameter	Type	Required	Notes
input	string	yes	—

Convert YAML to pretty-printed JSON.

Parameter	Type	Required	Notes
input	string	yes	—

Convert an array of JSON objects to CSV.

Parameter	Type	Required	Notes
input	string	yes	JSON array of flat objects.

Parse CSV text into a JSON array of objects.

Parameter	Type	Required	Notes
input	string	yes	—

UTF-8 text → Base64 string.

Parameter	Type	Required	Notes
input	string	yes	—

Base64 string → UTF-8 text.

Parameter	Type	Required	Notes
input	string	yes	—

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

Parameter	Type	Required	Notes
input	string	yes	—
mode	string	no	—

Decode percent-encoded URL text.

Parameter	Type	Required	Notes
input	string	yes	—
mode	string	no	—

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

Parameter	Type	Required	Notes
input	string	yes	—

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

Parameter	Type	Required	Notes
input	string	yes	—
algorithm	string	no	—

Generate RFC 4122 v4 UUIDs.

Parameter	Type	Required	Notes
count	integer	no	—

Test a regular expression against input text and return matches with capture groups.

Parameter	Type	Required	Notes
pattern	string	yes	Regex source, no surrounding slashes.
flags	string	no	Flags, e.g. 'gi'.
input	string	yes	—
replacement	string	no	Optional replacement for String.replace.

Convert a Unix timestamp (seconds or ms) to an ISO 8601 date string.

Parameter	Type	Required	Notes
input	string	yes	Numeric Unix timestamp as a string.
unit	string	no	—
zone	string	no	—

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

Parameter	Type	Required	Notes
token	string	yes	—

Pretty-print SQL.

Parameter	Type	Required	Notes
input	string	yes	—
dialect	string	no	—
indent	string	no	—
keywordCase	string	no	—

Pretty-print HTML.

Parameter	Type	Required	Notes
input	string	yes	—
indent	string	no	—
printWidth	integer	no	—

Pretty-print CSS.

Parameter	Type	Required	Notes
input	string	yes	—
indent	string	no	—
printWidth	integer	no	—

Pretty-print JavaScript / TypeScript with Prettier.

Parameter	Type	Required	Notes
input	string	yes	—
indent	string	no	—
printWidth	integer	no	—
semi	boolean	no	—
singleQuote	boolean	no	—
parser	string	no	—

Pretty-print YAML.

Parameter	Type	Required	Notes
input	string	yes	—
indent	string	no	—
lineWidth	integer	no	—
sortKeys	boolean	no	—

Explain a cron expression in plain English.

Parameter	Type	Required	Notes
expression	string	yes	—

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

Parameter	Type	Required	Notes
input	string	yes	—

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

Parameter	Type	Required	Notes
input	string	yes	—
delimiter	string	no	—
previewRows	integer	no	—

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

Parameter	Type	Required	Notes
input	string	yes	—
column	string	yes	—
mode	string	no	—
direction	string	no	—
delimiter	string	no	—

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

Parameter	Type	Required	Notes
input	string	yes	—
column	string	yes	—
mode	string	no	—
value	string	no	—
caseSensitive	boolean	no	—

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

Parameter	Type	Required	Notes
input	string	yes	—
mode	string	no	—
chunks	integer	no	Used when mode=byChunks.
rowsPerChunk	integer	no	Used when mode=byRows.

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

Parameter	Type	Required	Notes
input	string	yes	—

Diff two texts and return part-level changes plus a unified string.

Parameter	Type	Required	Notes
left	string	yes	—
right	string	yes	—
mode	string	no	—

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

Parameter	Type	Required	Notes
input	string	yes	—
listMarker	string	no	—
trimTrailing	boolean	no	—
collapseBlankLines	boolean	no	—

Convert Markdown to HTML.

Parameter	Type	Required	Notes
input	string	yes	—
gfm	boolean	no	—
breaks	boolean	no	—

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

Parameter	Type	Required	Notes
input	string	yes	—
gfm	boolean	no	—
breaks	boolean	no	—

Generate a URL slug from a string.

Parameter	Type	Required	Notes
input	string	yes	—
separator	string	no	—
lowercase	boolean	no	—
stripAccents	boolean	no	—
collapseRepeats	boolean	no	—
maxLength	integer	no	0 = no limit.

Generate <title>, description, Open Graph and Twitter Card tags for a page.

Parameter	Type	Required	Notes
title	string	yes	—
description	string	yes	—
url	string	no	—
imageUrl	string	no	—
siteName	string	no	—
twitterHandle	string	no	—
locale	string	no	—
type	string	no	—
canonical	string	no	—
author	string	no	—

Build an Open Graph preview metadata bundle (title / description / domain truncation).

Parameter	Type	Required	Notes
title	string	yes	—
description	string	yes	—
url	string	no	—
siteName	string	no	—
imageUrl	string	no	—

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

Parameter	Type	Required	Notes
hex	string	yes	HEX color, with or without leading #.

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

Parameter	Type	Required	Notes
angle	number	no	Degrees; 0 = top-to-bottom.
stops	array	yes	—

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

Parameter	Type	Required	Notes
tl	number	no	—
tr	number	no	—
br	number	no	—
bl	number	no	—

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

Parameter	Type	Required	Notes
layers	array	yes	—

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

Parameter	Type	Required	Notes
foreground	string	yes	—
background	string	yes	—

Free

$0 forever

Every tool — any call limit is its publisher’s, not ours
No card, and mcprush charges nothing for it
Runs at its publisher’s own address — this marketplace is not in the path
Nothing to cap, because mcprush bills nothing

Nothing here is billable: mcprush charges nothing to install One Million Tools or to call it, at any volume.

ATool-list grade · score 96 / 100

Release 0.1.0 · scanned 28 Oct 2026

Graded from the tools this server lists, not from its source code.

Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.

Threat score100

Client score96

Findings0 threat · 0 capability

Capabilityminimal

Coveragemanifest

Verificationnot in this report

Surface digest7fab4b261ddfb7bebd2a8cc0a238c1d212233ce5e8f75b5427de46382a2631ab

Score vectorthreat 100 → client 96

Term	Level	What it prices	Points
capability-exposure	minimal	capability blast radius (minimal) — client exposure if the model is manipulated	−0
coverage-honesty	manifest	inspection depth (manifest) — how much of the target the scan could see	−4

score = clamp(round(threatScore − E_cap − E_ver − E_cov), 0, 100). No model, no opinion, no network call at scoring time: the same methodology version against the same bytes always produces this number, and every line above is a field of the report rather than a summary of it.

What the scan could actually read

A grade is only as meaningful as its coverage, so the scanner publishes its own depth before it publishes its result.

The scan read each tool’s name, description, input schema and annotations exactly as the server listed them the last time it answered us; no code was reviewed. We ask the server again about once a month, and a list that changed is graded again.

Tool surfaceread

Implementation sourcenot available

Package metadatanot available

Live transportnot available

The implementation source was not read — this reflects the declared tool metadata only.

Capability — what it could do if the model were manipulated

Tags derived from each tool’s schema and the implementation, not from what the tool calls itself. minimal is the level these add up to.

Tool	Capability tags	Why the tag was assigned
json_format	no tags
json_minify	no tags
json_validate	no tags
json_diff	no tags
json_to_yaml	no tags
yaml_to_json	no tags
json_to_csv	no tags
csv_to_json	no tags
base64_encode	no tags
base64_decode	no tags
url_encode	no tags
url_decode	no tags
sha256_hash	no tags
hash_text	no tags
uuid_generate	no tags
regex_test	no tags
unix_timestamp_convert	no tags
jwt_decode	no tags
sql_format	no tags
html_format	no tags
css_format	no tags
js_format	no tags
yaml_format	no tags
cron_explain	no tags
env_redact	no tags
csv_parse	no tags
csv_sort	no tags
csv_filter	no tags
csv_split	no tags
csv_statistics	no tags
text_diff	no tags
markdown_format	no tags
markdown_to_html	no tags
markdown_preview	no tags
slug_generate	no tags
meta_tags_generate	no tags
og_preview_build	no tags
color_convert	no tags
css_gradient_build	no tags
css_border_radius_build	no tags
css_box_shadow_build	no tags
css_contrast_check	no tags

Toxic-flow graph

The lethal trifecta, checked as a graph rather than as a checklist: untrusted input, a sensitive source and an external sink have to meet before there is a path worth worrying about.

The public result for this release does not print the flow graph, so there is nothing to show here. That is not the same as "no paths were found": what the scan did read is above, under coverage.

Supply chain and provenance

Integrityfirst-seen

Surface digest7fab4b261ddfb7be

Scanned2026-10-28

This is the first scan of this surface here, so there is nothing yet to compare it against.

Every result on this tab comes from one deterministic pass over the published package — offline, rule by rule, and auditable line by line above. Same methodology version, same bytes, same score.

Where are you running it?

Tool surface

Release history

One Million Tools MCP

What it does

Quickstart

Where are you running it?

Tool surface

What counts against your monthly calls

What the scan could actually read

Capability — what it could do if the model were manipulated

Toxic-flow graph

Supply chain and provenance

Release history

See also