io.github.zvmzaretsky/utility-belt

up checked 2026-11-11T03:38:49.290Z

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Publisher-provided title

FabTally Utility Belt

Publisher-provided description

13 deterministic agent utilities: timezone, cron, RRULE, currency, regex, diff, hashing & more.

Summary by lookupd

Offers 13 deterministic utilities for timezones, cron, recurrence rules, currency, regex, diffs, hashing, IDs and text.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http utility-belt https://belt.fabtally.com/mcp

Codex, remote (streamable-http)

codex mcp add utility-belt --url https://belt.fabtally.com/mcp

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

{
  "mcpServers": {
    "utility-belt": {
      "url": "https://belt.fabtally.com/mcp"
    }
  }
}

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

Tools (13 tools)

Publisher-provided text

• convert FREE. Convert a value between units in the same dimension: length, mass, temperature, volume, data, time, area, speed, angle, pressure, energy. Deterministic. A
• text FREE. Text transforms. op='slugify' -> URL slug; op is one of camel|pascal|snake|kebab|constant|dot|path|title|sentence|upper|lower for case conversion; op='tem
• hash FREE. Compute a cryptographic digest: sha256, sha512, sha384, sha1, md5, sha3-256, keccak256, ripemd160. Optional HMAC via hmac_key. Output hex (default), base6
• encode FREE. Encode or decode text. op is one of base64-encode|base64-decode|base64url-encode|base64url-decode|hex-encode|hex-decode|url-encode|url-decode|html-encode|
• id FREE. Generate identifiers. kind is one of uuidv4|uuidv7|ulid|nanoid|hex|base64url|int. count up to 1000. nanoid takes `size`; hex/base64url take `bytes`. Uses
• regex FREE. Run a regular expression against input with catastrophic-backtracking protection (it runs in a killable worker with a hard timeout, so a pathological patt
• timezone PAID $0.001 (x402, USDC on Base). Convert an instant between IANA time zones with historically-correct DST. Returns converted datetime, UTC offsets, tz abbrevia
• cron PAID $0.001. Parse a 5- or 6-field cron expression and return the next N run times plus a plain-English description. Args: expression, timezone (IANA, default U
• rrule PAID $0.001. Expand an iCal RRULE (RFC 5545) recurrence into its next N occurrences. Args: rrule (e.g. 'FREQ=WEEKLY;BYDAY=MO,WE;COUNT=10'), after (ISO, default
• currency PAID $0.001. Convert an amount between currencies at reference/mid-market rates from a keyless public central-bank feed (ECB), cached. Informational, not a deal
• diff PAID $0.001. Diff two texts: a unified patch, a structured op-list (add/remove/equal), and add/remove/hunk stats. Args: a, b, mode (lines|words|chars, default l
• jsonschema PAID $0.001. Validate a value against a JSON Schema (draft 2020-12) and explain every error in plain English (which property, what was wrong, allowed values). A
• datemath PAID $0.001. Calendar date math. op='add'/'subtract' an ISO-8601 duration (P1Y2M10DT2H30M) to a date; op='diff' two datetimes into chosen units; op='business-ad

Details

• Version: 1.0.0
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 1327 ms
• First indexed: 2026-11-01T10:02:31.695Z
• Last seen in registry: 2026-11-01T10:02:31.695Z
• Repository: https://github.com/zvmzaretsky/fabtally-belt-mcp
• Website: https://belt.fabtally.com

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• Last crawl: 2026-11-11T16:39:06.253Z
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