NestDaddy

One Million Tools

io.github.lucas-project/one-million-tools · v0.1.0

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

Connect Remote server

Terminal
claude mcp add --transport http one-million-tools 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"
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://tools-empire-mcp.lucas-qin-au.workers.dev/mcp

Tools 42 found in our last check

  • json_format

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

  • json_minify

    Compress JSON by stripping whitespace.

  • json_validate

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

  • json_diff

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

  • json_to_yaml

    Convert JSON to YAML.

  • yaml_to_json

    Convert YAML to pretty-printed JSON.

  • json_to_csv

    Convert an array of JSON objects to CSV.

  • csv_to_json

    Parse CSV text into a JSON array of objects.

  • base64_encode

    UTF-8 text → Base64 string.

  • base64_decode

    Base64 string → UTF-8 text.

  • url_encode

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

  • url_decode

    Decode percent-encoded URL text.

  • sha256_hash

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

  • hash_text

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

  • uuid_generate

    Generate RFC 4122 v4 UUIDs.

  • regex_test

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

  • unix_timestamp_convert

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

  • jwt_decode

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

  • sql_format

    Pretty-print SQL.

  • html_format

    Pretty-print HTML.

  • css_format

    Pretty-print CSS.

  • js_format

    Pretty-print JavaScript / TypeScript with Prettier.

  • yaml_format

    Pretty-print YAML.

  • cron_explain

    Explain a cron expression in plain English.

  • env_redact

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

  • csv_parse

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

  • csv_sort

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

  • csv_filter

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

  • 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.

  • text_diff

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

  • markdown_format

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

  • markdown_to_html

    Convert Markdown to HTML.

  • markdown_preview

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

  • slug_generate

    Generate a URL slug from a string.

  • meta_tags_generate

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

  • og_preview_build

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

  • color_convert

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

  • css_gradient_build

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

  • 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.

Details

Endpointhttps://tools-empire-mcp.lucas-qin-au.workers.dev/mcp (Streamable HTTP)
First published21 Oct 2026
Last updated21 Oct 2026
Registry nameio.github.lucas-project/one-million-tools

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