io.github.sanket-naik/usesignal

up checked 2026-11-11T05:39:18.304Z

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Publisher-provided title

useSignal

Publisher-provided description

QR codes, JSON diff/format, hashes, JWT, cron, timestamps, placeholders, flowcharts, forms, regex.

Summary by lookupd

Converts timestamps, diffs and formats JSON, encodes or decodes text, explains cron schedules, and generates QR codes, forms, colors and…

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http usesignal https://www.usesignal.dev/mcp

Codex, remote (streamable-http)

codex mcp add usesignal --url https://www.usesignal.dev/mcp

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

{
  "mcpServers": {
    "usesignal": {
      "url": "https://www.usesignal.dev/mcp"
    }
  }
}

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

Tools (12 tools)

Publisher-provided text

usesignal_generate_form Generate an editable form from a JSON object. Returns nested field paths, JSON Schema, HTML, React JSX and config exports. Arrays and nulls use JSON textareas.
usesignal_generate_colors Generate light and dark semantic color tokens from a six-digit hex brand color. Returns a shade scale, measured text contrast checks and CSS, JSON and Tailwind
usesignal_test_regex Execute a JavaScript regular expression against text and expected match/non-match test cases. Returns indexed matches and capture groups. Flags use JavaScript s
usesignal_generate_qr Generate a scannable QR code for a link, text, Wi-Fi network, contact card (vCard), email, SMS, phone number, WhatsApp chat or UPI payment. Returns the encoded
usesignal_encode_decode Exact text transforms: Base64 encode/decode (UTF-8), URL encode/decode, decode a JWT header and payload with readable exp/iat/nbf dates (the signature is not ve
usesignal_explain_cron Explain a standard 5-field cron expression (minute hour day-of-month month day-of-week) in plain English and list its next run times in a given time zone, handl
usesignal_convert_timestamp Convert a Unix timestamp (seconds or milliseconds) or an ISO 8601 date into ISO, UTC, epoch seconds/milliseconds, a relative time and the local time in a given
usesignal_diff_json Compare two JSON documents structurally and list every added, removed and changed value with its JSONPath. Numbers compare exactly. Arrays match by content by d
usesignal_format_json Validate, pretty-print or minify JSON, optionally sorting keys. Invalid JSON reports the exact line and column; with repair (default on) it fixes common problem
usesignal_placeholder_image Create a placeholder image URL (served by usesignal.dev) plus HTML, Markdown and CSS snippets, for mockups, prototypes, seed data and layouts. Width and height
usesignal_flowchart Turn JavaScript/TypeScript code, arrow steps or Mermaid-style arrows into a flowchart, returned as Mermaid source and an SVG diagram. Steps mode uses one flow p
usesignal_open_workbench Show the editable useSignal UI. First call a useSignal data tool, then pass its returned input and matching tool name. Recomputes from validated inputs; no shar

Details

Version: 0.2.0
Transports: streamable-http
Uptime (7 days): 100%
Median latency: 349 ms
First indexed: 2026-11-01T09:53:44.764Z
Last seen in registry: 2026-11-01T09:53:44.780Z
Repository: https://github.com/sanket-naik/usesignal-claude-plugin
Website: https://www.usesignal.dev/

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62092 servers
Last crawl: 2026-11-11T17:38:11.606Z
API base: https://api.lookupd.com
MCP URL: https://api.lookupd.com/mcp