io.github.zvmzaretsky/utility-belt

Est-ce que io.github.zvmzaretsky/utility-belt est sûr ?

Au dernier audit MCP Hub, le serveur MCP « io.github.zvmzaretsky/utility-belt » est classé « Non encore testé ». Référencé dans l'annuaire. Seul le pentest comportemental fait foi, et il n'a pas encore été exécuté sur ce serveur. Le verdict est réévalué en continu ; consultez la fiche pour l'état à jour.

Méthode : MCP Hub analyse la description de chaque outil (couche 1) et, pour le verdict fort, exécute le serveur dans une micro-VM isolée avec leurres et réseau bloqué (couche 2). On publie des noms et des compteurs, jamais le contenu brut renvoyé par un outil.

Les 13 outils

• convert≈ 197 tokens

  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.

  Paramètres, retour & exemple (3)

  Paramètres

  • to · string · requis
    Target unit in the same dimension.
  • from · string · requis
    Source unit, e.g. c, km, GiB, gal, kg.
  • value · number · requis
    Numeric value to convert.

  Exemple d'appel

  {"name": "convert", "arguments": {"to": "texte", "from": "texte", "value": 1}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• cron≈ 291 tokens

  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.

  Paramètres, retour & exemple (5)

  Paramètres

  • from · string · optionnel
    Compute runs after this ISO datetime (default now).
  • count · integer · optionnel
    How many upcoming runs (1-100, default 5).
  • timezone · string · optionnel
    IANA timezone (default UTC).
  • x_payment · string · optionnel
    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.
  • expression · string · requis
    Cron expression, e.g. '0 9 * * 1-5'.

  Exemple d'appel

  {"name": "cron", "arguments": {"expression": "texte"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• currency≈ 266 tokens

  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.

  Paramètres, retour & exemple (4)

  Paramètres

  • to · string · requis
    Target ISO-4217 code, e.g. EUR.
  • from · string · requis
    Source ISO-4217 code, e.g. USD.
  • amount · number · requis
    Amount in the source currency.
  • x_payment · string · optionnel
    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.

  Exemple d'appel

  {"name": "currency", "arguments": {"to": "texte", "from": "texte", "amount": 1}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• datemath≈ 490 tokens

  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.

  Paramètres, retour & exemple (11)

  Paramètres

  • op · string · requis
    add | subtract | diff | business-add | business-diff
  • to · string · optionnel
    End datetime for diff/business-diff.
  • date · string · optionnel
    Base date for add/subtract/business-add (ISO 8601).
  • days · integer · optionnel
    Business days to add (business-add; may be negative).
  • from · string · optionnel
    Start datetime for diff/business-diff.
  • units · ? · optionnel
    diff units, e.g. ['days','hours'].
  • weekend · array · optionnel
    Weekend weekdays (1=Mon..7=Sun; default [6,7]).
  • duration · ? · optionnel
    ISO-8601 duration string or object for add/subtract.
  • holidays · array · optionnel
    ISO dates to skip as holidays.
  • timezone · string · optionnel
    IANA zone for parsing/rendering.
  • x_payment · string · optionnel
    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.

  Exemple d'appel

  {"name": "datemath", "arguments": {"op": "texte"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• diff≈ 287 tokens

  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.

  Paramètres, retour & exemple (7)

  Paramètres

  • a · string · requis
    Original text.
  • b · string · requis
    Changed text.
  • mode · string · optionnel
    lines (default) | words | chars.
  • context · integer · optionnel
    Unified-diff context lines (default 3).
  • label_a · string · optionnel
  • label_b · string · optionnel
  • x_payment · string · optionnel
    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.

  Exemple d'appel

  {"name": "diff", "arguments": {"a": "texte", "b": "texte"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• encode≈ 171 tokens

  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.

  Paramètres, retour & exemple (2)

  Paramètres

  • op · string · requis
    base64-encode|base64-decode|base64url-encode|base64url-decode|hex-encode|hex-decode|url-encode|url-decode|html-encode|html-decode
  • text · string · requis
    Text to encode/decode.

  Exemple d'appel

  {"name": "encode", "arguments": {"op": "texte", "text": "texte"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• hash≈ 270 tokens

  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).

  Paramètres, retour & exemple (5)

  Paramètres

  • text · string · requis
    Input to hash.
  • hmac_key · string · optionnel
    If set, compute HMAC with this key (not for keccak256/sha3-256).
  • algorithm · string · requis
    sha256 | sha512 | sha384 | sha1 | md5 | sha3-256 | keccak256 | ripemd160
  • input_encoding · string · optionnel
    How `text` is encoded: utf8 (default) | hex | base64 | base64url.
  • output_encoding · string · optionnel
    Digest encoding: hex (default) | base64 | base64url.

  Exemple d'appel

  {"name": "hash", "arguments": {"text": "texte", "algorithm": "texte"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• id≈ 195 tokens

  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.

  Paramètres, retour & exemple (4)

  Paramètres

  • kind · string · optionnel
    uuidv4 (default) | uuidv7 | ulid | nanoid | hex | base64url | int
  • size · integer · optionnel
    nanoid length (default 21).
  • bytes · integer · optionnel
    hex/base64url random byte length (default 16).
  • count · integer · optionnel
    How many to generate (1-1000, default 1).

  Exemple d'appel

  {"name": "id", "arguments": {"kind": "texte", "size": 1, "bytes": 1, "count": 1}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• jsonschema≈ 247 tokens

  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.

  Paramètres, retour & exemple (3)

  Paramètres

  • data · ? · optionnel
    The value to validate against the schema.
  • schema · object · requis
    A JSON Schema (draft 2020-12) object.
  • x_payment · string · optionnel
    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.

  Exemple d'appel

  {"name": "jsonschema", "arguments": {"schema": {}}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• regex≈ 283 tokens

  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).

  Paramètres, retour & exemple (6)

  Paramètres

  • op · string · optionnel
    test | match | extract (capture groups) | replace. Default match.
  • flags · string · optionnel
    Any of g,i,m,s,u,y.
  • input · string · requis
    The text to run it against (max 200k chars).
  • limit · integer · optionnel
    Max matches for global ops (default 1000).
  • pattern · string · requis
    The regular expression source (max 2000 chars).
  • replacement · string · optionnel
    Replacement string for op='replace' (supports $1 etc.).

  Exemple d'appel

  {"name": "regex", "arguments": {"input": "texte", "pattern": "texte"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• rrule≈ 300 tokens

  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.

  Paramètres, retour & exemple (5)

  Paramètres

  • after · string · optionnel
    Return occurrences after this ISO datetime (default now).
  • count · integer · optionnel
    How many occurrences (1-366, default 5).
  • rrule · string · requis
    RRULE string, optionally with a DTSTART line.
  • timezone · string · optionnel
    Render occurrences in this IANA zone.
  • x_payment · string · optionnel
    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.

  Exemple d'appel

  {"name": "rrule", "arguments": {"rrule": "texte"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• text≈ 283 tokens

  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).

  Paramètres, retour & exemple (6)

  Paramètres

  • op · string · requis
    slugify | template | camel | pascal | snake | kebab | constant | dot | path | title | sentence | upper | lower
  • data · object · optionnel
    Object of values for op='template'.
  • text · string · optionnel
    Input text for slugify/case ops.
  • strict · boolean · optionnel
    template: throw on missing keys.
  • template · string · optionnel
    Template string for op='template', with {{key}} placeholders.
  • separator · string · optionnel
    Slug separator (default '-').

  Exemple d'appel

  {"name": "text", "arguments": {"op": "texte"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

• timezone≈ 317 tokens

  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.

  Paramètres, retour & exemple (4)

  Paramètres

  • to_zone · string · requis
    Target IANA zone, e.g. Europe/London, Asia/Tokyo.
  • datetime · string|number · requis
    Instant to convert: ISO 8601 (e.g. 2021-03-14T01:30:00) or epoch seconds/millis.
  • from_zone · string · optionnel
    Source IANA zone (default UTC), e.g. America/New_York.
  • x_payment · string · optionnel
    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.

  Exemple d'appel

  {"name": "timezone", "arguments": {"to_zone": "texte", "datetime": 1}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}]}

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Source

https://belt.fabtally.com/mcp