FabTally Utility Belt
13 deterministic agent utilities: timezone, cron, RRULE, currency, regex, diff, hashing & more.
Sollte ich dies verwenden
Qualität und Sicherheit
Befunde (6)
- HIGHTool poisoning patterns detected
- MEDIUMTool 'text' description contains placeholder textin text
- LOWTool 'text' description lacks action verbin text
- LOWTool 'encode' description lacks action verbin encode
- LOWTool 'id' name length outside 3-30 rangein id
- INFOTool description contains placeholder or incomplete textin text
Basierend auf einer automatisierten Analyse der Tool-Definitionen und der Einhaltung des Protokolls.
Kontextkosten
Dies ist die ungefähre Anzahl der Tokens, die jedes Mal verbraucht werden, wenn die Tools des Servers in den Kontext eines Modells geladen werden. Höhere Werte verringern die Aufmerksamkeit, die für andere Aufgaben verfügbar ist.
Installieren
Installation mit einem Klick
Fügen Sie dies Ihrer Datei `claude_desktop_config.json` hinzu:
{
"mcpServers": {
"utility-belt": {
"url": "https://belt.fabtally.com/mcp"
}
}
}Remote-Endpunkte
https://belt.fabtally.com/mcpstreamable-httpWas es kann
Tool-Inventar
Tools (13)
⚪convert(value, from, to)
FREE. Convert a value between units in the same dimension: length, mass, temperature, volume, data, time, area, speed, angle, pressure, energy. Deterministic. Args: value (number), from (unit), to (unit). e.g. {value:100, from:'c', to:'f'} or {value:1, from:'GiB', to:'MB'}. Different-dimension conversions 400.
Eingabe-Schema
{
"type": "object",
"properties": {
"value": {
"type": "number",
"description": "Numeric value to convert."
},
"from": {
"type": "string",
"description": "Source unit, e.g. c, km, GiB, gal, kg."
},
"to": {
"type": "string",
"description": "Target unit in the same dimension."
}
},
"required": [
"value",
"from",
"to"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}⚪text(op, text, template, data, separator, ...)
FREE. Text transforms. op='slugify' -> URL slug; op is one of camel|pascal|snake|kebab|constant|dot|path|title|sentence|upper|lower for case conversion; op='template' fills {{placeholders}} from `data`. Args: op, text (for slugify/case), or template + data (for template).
Eingabe-Schema
{
"type": "object",
"properties": {
"op": {
"type": "string",
"description": "slugify | template | camel | pascal | snake | kebab | constant | dot | path | title | sentence | upper | lower"
},
"text": {
"type": "string",
"description": "Input text for slugify/case ops."
},
"template": {
"type": "string",
"description": "Template string for op='template', with {{key}} placeholders."
},
"data": {
"type": "object",
"additionalProperties": {},
"description": "Object of values for op='template'."
},
"separator": {
"type": "string",
"description": "Slug separator (default '-')."
},
"strict": {
"type": "boolean",
"description": "template: throw on missing keys."
}
},
"required": [
"op"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢hash(algorithm, text, input_encoding, output_encoding, hmac_key)
FREE. Compute a cryptographic digest: sha256, sha512, sha384, sha1, md5, sha3-256, keccak256, ripemd160. Optional HMAC via hmac_key. Output hex (default), base64, or base64url. keccak256 also returns a 0x-form (handy for Ethereum). Args: algorithm, text (+ input_encoding utf8|hex|base64, output_encoding, hmac_key).
Eingabe-Schema
{
"type": "object",
"properties": {
"algorithm": {
"type": "string",
"description": "sha256 | sha512 | sha384 | sha1 | md5 | sha3-256 | keccak256 | ripemd160"
},
"text": {
"type": "string",
"description": "Input to hash."
},
"input_encoding": {
"type": "string",
"description": "How `text` is encoded: utf8 (default) | hex | base64 | base64url."
},
"output_encoding": {
"type": "string",
"description": "Digest encoding: hex (default) | base64 | base64url."
},
"hmac_key": {
"type": "string",
"description": "If set, compute HMAC with this key (not for keccak256/sha3-256)."
}
},
"required": [
"algorithm",
"text"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}⚪encode(op, text)
FREE. Encode or decode text. op is one of base64-encode|base64-decode|base64url-encode|base64url-decode|hex-encode|hex-decode|url-encode|url-decode|html-encode|html-decode. Args: op, text.
Eingabe-Schema
{
"type": "object",
"properties": {
"op": {
"type": "string",
"description": "base64-encode|base64-decode|base64url-encode|base64url-decode|hex-encode|hex-decode|url-encode|url-decode|html-encode|html-decode"
},
"text": {
"type": "string",
"description": "Text to encode/decode."
}
},
"required": [
"op",
"text"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢id(kind, count, size, bytes)
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 a CSPRNG. Args: kind, count.
Eingabe-Schema
{
"type": "object",
"properties": {
"kind": {
"type": "string",
"description": "uuidv4 (default) | uuidv7 | ulid | nanoid | hex | base64url | int"
},
"count": {
"type": "integer",
"description": "How many to generate (1-1000, default 1)."
},
"size": {
"type": "integer",
"description": "nanoid length (default 21)."
},
"bytes": {
"type": "integer",
"description": "hex/base64url random byte length (default 16)."
}
},
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}⚪regex(pattern, input, flags, op, replacement, ...)
FREE. Run a regular expression against input with catastrophic-backtracking protection (it runs in a killable worker with a hard timeout, so a pathological pattern returns a 400 instead of hanging). op is test|match|extract|replace. Args: pattern, input, flags (gimsuy), op, replacement (for replace).
Eingabe-Schema
{
"type": "object",
"properties": {
"pattern": {
"type": "string",
"description": "The regular expression source (max 2000 chars)."
},
"input": {
"type": "string",
"description": "The text to run it against (max 200k chars)."
},
"flags": {
"type": "string",
"description": "Any of g,i,m,s,u,y."
},
"op": {
"type": "string",
"description": "test | match | extract (capture groups) | replace. Default match."
},
"replacement": {
"type": "string",
"description": "Replacement string for op='replace' (supports $1 etc.)."
},
"limit": {
"type": "integer",
"description": "Max matches for global ops (default 1000)."
}
},
"required": [
"pattern",
"input"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}⚪timezone(datetime, from_zone, to_zone, x_payment)
PAID $0.001 (x402, USDC on Base). Convert an instant between IANA time zones with historically-correct DST. Returns converted datetime, UTC offsets, tz abbreviations, DST flags, and the offset difference. Args: datetime (ISO 8601 or epoch), from_zone, to_zone. Without payment returns the x402 challenge; pass x_payment to settle. Free teaser exists on the HTTP API at /v1/timezone/free.
Eingabe-Schema
{
"type": "object",
"properties": {
"datetime": {
"type": [
"string",
"number"
],
"description": "Instant to convert: ISO 8601 (e.g. 2021-03-14T01:30:00) or epoch seconds/millis."
},
"from_zone": {
"type": "string",
"description": "Source IANA zone (default UTC), e.g. America/New_York."
},
"to_zone": {
"type": "string",
"description": "Target IANA zone, e.g. Europe/London, Asia/Tokyo."
},
"x_payment": {
"type": "string",
"description": "x402 payment payload (base64) for this PAID tool. If supplied it is forwarded as the X-PAYMENT header to settle the $0.001 call and return the real result instead of a 402 challenge. Omit to get the price challenge first."
}
},
"required": [
"datetime",
"to_zone"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢cron(expression, timezone, count, from, x_payment)
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 UTC), count (default 5), from (ISO, optional). Without payment returns the x402 challenge; pass x_payment to settle.
Eingabe-Schema
{
"type": "object",
"properties": {
"expression": {
"type": "string",
"description": "Cron expression, e.g. '0 9 * * 1-5'."
},
"timezone": {
"type": "string",
"description": "IANA timezone (default UTC)."
},
"count": {
"type": "integer",
"description": "How many upcoming runs (1-100, default 5)."
},
"from": {
"type": "string",
"description": "Compute runs after this ISO datetime (default now)."
},
"x_payment": {
"type": "string",
"description": "x402 payment payload (base64) for this PAID tool. If supplied it is forwarded as the X-PAYMENT header to settle the $0.001 call and return the real result instead of a 402 challenge. Omit to get the price challenge first."
}
},
"required": [
"expression"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢rrule(rrule, after, count, timezone, x_payment)
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 now), count (default 5), timezone. Tip: include DTSTART for anchored series. Without payment returns the x402 challenge; pass x_payment.
Eingabe-Schema
{
"type": "object",
"properties": {
"rrule": {
"type": "string",
"description": "RRULE string, optionally with a DTSTART line."
},
"after": {
"type": "string",
"description": "Return occurrences after this ISO datetime (default now)."
},
"count": {
"type": "integer",
"description": "How many occurrences (1-366, default 5)."
},
"timezone": {
"type": "string",
"description": "Render occurrences in this IANA zone."
},
"x_payment": {
"type": "string",
"description": "x402 payment payload (base64) for this PAID tool. If supplied it is forwarded as the X-PAYMENT header to settle the $0.001 call and return the real result instead of a 402 challenge. Omit to get the price challenge first."
}
},
"required": [
"rrule"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}⚪currency(amount, from, to, x_payment)
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 dealable quote. Args: amount, from, to (ISO-4217, e.g. USD, EUR, JPY). Without payment returns the x402 challenge; pass x_payment to settle.
Eingabe-Schema
{
"type": "object",
"properties": {
"amount": {
"type": "number",
"description": "Amount in the source currency."
},
"from": {
"type": "string",
"description": "Source ISO-4217 code, e.g. USD."
},
"to": {
"type": "string",
"description": "Target ISO-4217 code, e.g. EUR."
},
"x_payment": {
"type": "string",
"description": "x402 payment payload (base64) for this PAID tool. If supplied it is forwarded as the X-PAYMENT header to settle the $0.001 call and return the real result instead of a 402 challenge. Omit to get the price challenge first."
}
},
"required": [
"amount",
"from",
"to"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢diff(a, b, mode, context, label_a, ...)
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 lines), context (default 3), label_a, label_b. Without payment returns the x402 challenge; pass x_payment to settle.
Eingabe-Schema
{
"type": "object",
"properties": {
"a": {
"type": "string",
"description": "Original text."
},
"b": {
"type": "string",
"description": "Changed text."
},
"mode": {
"type": "string",
"description": "lines (default) | words | chars."
},
"context": {
"type": "integer",
"description": "Unified-diff context lines (default 3)."
},
"label_a": {
"type": "string"
},
"label_b": {
"type": "string"
},
"x_payment": {
"type": "string",
"description": "x402 payment payload (base64) for this PAID tool. If supplied it is forwarded as the X-PAYMENT header to settle the $0.001 call and return the real result instead of a 402 challenge. Omit to get the price challenge first."
}
},
"required": [
"a",
"b"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢jsonschema(schema, data, x_payment)
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). Args: schema (object), data (any). Without payment returns the x402 challenge; pass x_payment to settle.
Eingabe-Schema
{
"type": "object",
"properties": {
"schema": {
"type": "object",
"additionalProperties": {},
"description": "A JSON Schema (draft 2020-12) object."
},
"data": {
"description": "The value to validate against the schema."
},
"x_payment": {
"type": "string",
"description": "x402 payment payload (base64) for this PAID tool. If supplied it is forwarded as the X-PAYMENT header to settle the $0.001 call and return the real result instead of a 402 challenge. Omit to get the price challenge first."
}
},
"required": [
"schema"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟡datemath(op, date, duration, from, to, ...)
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-add' add business days (configurable weekend + holidays); op='business-diff' count business days between two dates. Without payment returns the x402 challenge; pass x_payment to settle.
Eingabe-Schema
{
"type": "object",
"properties": {
"op": {
"type": "string",
"description": "add | subtract | diff | business-add | business-diff"
},
"date": {
"type": "string",
"description": "Base date for add/subtract/business-add (ISO 8601)."
},
"duration": {
"anyOf": [
{
"type": "string"
},
{
"type": "object",
"additionalProperties": {}
}
],
"description": "ISO-8601 duration string or object for add/subtract."
},
"from": {
"type": "string",
"description": "Start datetime for diff/business-diff."
},
"to": {
"type": "string",
"description": "End datetime for diff/business-diff."
},
"units": {
"anyOf": [
{
"type": "string"
},
{
"type": "array",
"items": {
"type": "string"
}
}
],
"description": "diff units, e.g. ['days','hours']."
},
"days": {
"type": "integer",
"description": "Business days to add (business-add; may be negative)."
},
"holidays": {
"type": "array",
"items": {
"type": "string"
},
"description": "ISO dates to skip as holidays."
},
"weekend": {
"type": "array",
"items": {
"type": "number"
},
"description": "Weekend weekdays (1=Mon..7=Sun; default [6,7])."
},
"timezone": {
"type": "string",
"description": "IANA zone for parsing/rendering."
},
"x_payment": {
"type": "string",
"description": "x402 payment payload (base64) for this PAID tool. If supplied it is forwarded as the X-PAYMENT header to settle the $0.001 call and return the real result instead of a 402 challenge. Omit to get the price challenge first."
}
},
"required": [
"op"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}Community
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