tools.clean/mcp

up checked 2026-11-11T04:38:14.329Z

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Publisher-provided description

Read-only developer, date, finance, and text utilities. Authless remote MCP server by Clean.tools.

Summary by lookupd

Runs read-only utilities for finance, dates, text, hashing, regex, and data conversion, with deterministic results for agents.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http mcp https://mcp.clean.tools/mcp

Claude Code, npm package (stdio)

claude mcp add mcp -- npx -y @clean-tools/mcp

Codex, remote (streamable-http)

codex mcp add mcp --url https://mcp.clean.tools/mcp

Codex, npm package (stdio)

codex mcp add mcp -- npx -y @clean-tools/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://mcp.clean.tools/mcp"
    }
  }
}

Cursor, npm package (stdio) → .cursor/mcp.json

{
  "mcpServers": {
    "mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@clean-tools/mcp"
      ]
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (showing 30 of 42)

Publisher-provided text

• explain_cron Use this when you need to understand or schedule a 5-field cron expression. Prefer this over reasoning about cron semantics yourself (a documented LLM failure m
• validate_cron Use this when you need to check whether a 5-field cron expression is well-formed, instead of guessing. Prefer this over reasoning about cron syntax yourself (a
• expand_rrule Use this when you need to build an iCalendar RRULE (RFC 5545) or list the actual dates a recurrence produces. Prefer this over computing recurring dates yoursel
• convert_timezone Use this when you need to convert a wall-clock date-time between IANA time zones with correct DST handling. Prefer this over doing timezone math yourself (a doc
• strftime_preview Use this when you need to know exactly what a C/POSIX strftime pattern (%Y %m %d %H %M %S %A %B %j %z etc.) produces. Prefer this over guessing the output yours
• amortization_schedule Use this when you need a fixed-rate loan or mortgage's level monthly payment plus a year-by-year amortization schedule (principal paid, interest paid, remaining
• tvm_solve Use this when you have four of the five time-value-of-money variables (N periods, I/Y annual rate percent, PV, PMT, FV) and need the fifth - annuity, loan, or i
• compound_interest Use this when you need to project a principal's growth under compound interest, optionally with recurring monthly contributions, returning the final balance and
• apr_calc Use this when you need an exact loan APR or APY rather than an approximation. Two modes. mode="loan" (default): solve the true APR of an installment loan from a
• interest_rate Use this when you need the exact interest rate that grows a principal to a target amount over a set number of years. type="compound" (default) uses the closed-f
• hash_text Use this when you need the exact SHA-1, SHA-256, and/or SHA-512 hex digest of a UTF-8 string — never recall or guess a hash, since digests cannot be produced fr
• diff_text Use this when you need an exact line-level diff between two blocks of text instead of eyeballing the differences. Deterministic: same input, same output. Comput
• test_regex Use this when you need the true matches of a JavaScript regular expression rather than predicting regex behavior yourself, which is easy to get wrong. Determini
• convert_data Use this when you need to convert tabular data between JSON (array of objects), CSV, TSV, and XML instead of hand-transforming it. Deterministic: same input, sa
• luhn_validate Use this when you need to check whether a number passes the Luhn (mod-10) checksum used by credit cards and many identifier numbers, instead of computing the do
• convert_units Use this when you need to convert a value between units within one category (length, weight, temperature, volume, data, speed, area, time) instead of doing conv
• uuid_v4 Use this when you need RFC 4122 version-4 UUIDs — always generate them here rather than fabricating one, so the version and variant bits and the randomness are
• random_number Use this when you need to draw cryptographically secure random integers or decimals in a range using unbiased rejection sampling — prefer it over inventing 'ran
• generate_password Use this when you need strong passwords with Web Crypto randomness: mode="random" builds character-set passwords (length plus uppercase/lowercase/numbers/symbol
• decode_jwt Use this when you need to decode (NOT verify) a JSON Web Token: base64url-decode the header and payload, surface standard claims, and report expiry — prefer it
• encode_decode Use this when you need to encode or decode text and want multi-byte and entity edge cases handled correctly rather than doing it by hand. Deterministic: same in
• count_text Use this when you need exact word, character, sentence, and paragraph counts instead of estimating. Deterministic: same input, same output. Uses Unicode-aware s
• generate_qr Use this when you need to turn text or a URL into a real, scannable QR code rather than describing one. Deterministic: same input, same output. Byte mode, error
• convert_case Use this when you need to re-case text into a specific naming or letter case. Given `text` and a target `case` (upper, lower, title, sentence, camel, snake, keb
• fancy_text Use this when you need to style ASCII letters and digits as Unicode glyphs (bold-serif, italic-serif, bold-italic-serif, bold-sans, script, fraktur, double-stru
• render_markdown Use this when you need to convert lightweight Markdown into a sanitized, XSS-safe HTML fragment to preview or embed, matching the Clean.tools markdown preview.
• lorem_ipsum Use this when you need placeholder/filler copy for mockups, tests, or layout. Given a `mode` ("paragraphs", "sentences", "words", or "formatted") and a `count`,
• redact_text Use this when scrubbing test/dev text: replaces each occurrence of the given terms with block characters (████). Provide `text` plus `terms` (a comma-separated
• format_sql Use this when a user pastes messy or minified SQL and wants it pretty-printed into a readable, canonical layout, or wants keyword casing normalized. Determinist
• color_palette Use this when you need color-harmony palettes derived from one base hex color. Rotates hue/lightness in HSL to build complementary (+180 degrees), analogous (-3

Details

• Version: 0.1.1
• Transports: streamable-http, stdio
• Uptime (7 days): 100%
• Median latency: 450 ms
• First indexed: 2026-11-01T10:09:15.968Z
• Last seen in registry: 2026-11-01T10:09:15.968Z
• Website: https://clean.tools

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