Utilities MCP servers

6,169 servers

Small helpers: time, math, text conversion, random data and other everyday tools.

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  1. PlainGrade dev.workers.mike-tusa.plaingrade-api/plaingrade-api

    English readability scores (Flesch, Flesch-Kincaid, Fog, SMOG) and text stats. Text never stored.

    100% up · 30 days

    Utilities Official MCP Registry Remote

  2. RichProof dev.workers.mike-tusa.richproof/richproof

    Validate JSON-LD structured data against the Schema.org vocabulary. Free; never fetches URLs.

    100% up · 30 days

    Marketing and SEO Official MCP Registry Remote

  3. SmuggleCheck dev.workers.mike-tusa.smugglecheck/smugglecheck

    Find hidden prompt-injection text: ASCII smuggling, zero-width/emoji stego, bidi, homoglyphs.

    100% up · 30 days

    Utilities Official MCP Registry Remote

  4. UAParse dev.workers.mike-tusa.uaparse/uaparse

    Parse a User-Agent: browser, OS, device, plus bot, search crawler, AI crawler and AI agent flags.

    100% up · 30 days

    Browser automation Official MCP Registry Remote

  5. WorkdayAPI dev.workers.mike-tusa.workdayapi/workdayapi

    Business-day and public-holiday math for 29 countries: add business days, days between, holidays.

    100% up · 30 days

    Utilities Official MCP Registry Remote

  6. well-003-json-to-markdown dev.workers.mmelnyk2000.well-003-json-to-markdown/json-to-markdown

    https JSON URL to tidy markdown. x402 $0.005 USDC, Base. As is, no warranty.

    0% up · 30 days

    Office documents and spreadsheets Official MCP Registry Remote

  7. Pulse — heartbeat & status monitor for AI agents dev.workers.notdown-app.pulse/monitor

    Your agent pings once per run; get a public up/late/down status page. Auto-creates checks. One call.

    Address set by you

    Monitoring and observability Official MCP Registry Remote

  8. Agent Discovery Doctor - llms.txt, agent card, mcp.json dev.workers.pathwren.www/agent-discovery-doctor

    {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key

    100% up · 30 days

    Model and agent tools Official MCP Registry Remote

  9. MCP Endpoint Lint - handshake, tool schemas, JSON-RPC errors dev.workers.pathwren.www/mcp-endpoint-lint

    {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key

    100% up · 30 days

    Developer tools Official MCP Registry Remote

  10. Skim dev.workers.perch-app.skim/skim

    URL to Markdown or structured JSON (schema.org/OG); renders SPA; batch reads. No signup/key.

    100% up · 30 days

    Web search and scraping Official MCP Registry Remote

  11. Business Day Calendars dev.workers.quietworklabs.business-days/business-days

    NYSE, Federal Reserve, TARGET2 and UK business days, holidays and T+N settlement dates.

    100% up · 30 days

    Calendar and scheduling Official MCP Registry Remote

  12. QuickBuild token-saver tools + x402 dev.workers.quynguyenbac.quickbuild/agent-tools

    Free no-LLM token savers: URL→Markdown, outline, JSON trim, log compress, token count; x402 extras

    100% up · 30 days

    Office documents and spreadsheets Official MCP Registry Remote

  13. well-003-json-to-markdown dev.workers.rainmaker-wells.well-003-json-to-markdown/json-to-markdown

    https JSON URL to tidy markdown. x402 $0.005 USDC, Base. As is, no warranty.

    100% up · 30 days

    Office documents and spreadsheets Official MCP Registry Remote

  14. url-change-watch: did this page change? dev.workers.rainmaker-wells.well-009-url-change-watch/url-change-check

    Did this page change? Hash-compare any public URL vs last check; skip unchanged re-reads. x402 $0.01

    100% up · 30 days

    Utilities Official MCP Registry Remote

  15. Brasil Data (pay-per-call via x402) dev.workers.wagner-proc.brasil-data-x402/brasil-data

    Brazil CNPJ, CEP, Selic/IPCA/PTAX, holidays, banks/ISPB for agents. Pay per call in USDC (x402).

    100% up · 30 days

    Finance and payments Official MCP Registry Remote

  16. NZ Data API dev.workers.zakwins.nzdata/nz-data-api

    New Zealand public holidays, working-day deadlines, IRD/NZBN/bank checks, GST. Pay per call via x402

    100% up · 30 days

    Finance and payments Official MCP Registry Remote

  17. SweKit - Swedish validators dev.workers.zenith-ops.swekit-api/swekit

    Swedish personnummer/orgnr/bankgiro/OCR validation, kontonummer to IBAN, bankdagar.

    100% up · 30 days

    Office documents and spreadsheets Official MCP Registry Remote

  18. zerm dev.zerm/zerm

    Agent utility belt: memory, locks, webhook inboxes, timers, DNS, email, URL, timezone, cron

    100% up · 30 days

    Utilities Official MCP Registry Remote

  19. calc.engineer engineer.calc/calc

    88 free engineering calculators: RF link budgets, LoRa/Meshtastic, PCB, solar, homelab. Keyless.

    100% up · 30 days

    Smart home and hardware Official MCP Registry Remote

  20. beyourspace data APIs es.beyourspace/data-apis

    Pay-per-call data tools via x402: Spanish/EU open data, extraction, URL to Markdown, CSV to JSON.

    0% up · 30 days

    Office documents and spreadsheets Official MCP Registry Remote

  21. contix herramientas es.contix/herramientas

    Free no-auth tools for Spain: validate IBAN, EU VAT check (VIES), Modelo 303 sums, Veri*factu dates.

    100% up · 30 days

    Finance and payments Official MCP Registry Remote

  22. IBAN Validation MCP eu.iban-test.www/iban-validation

    Validate IBANs in 111 countries; bank directory checks for DE, AT, BE, FR, LU, NL, PT and ES.

    87.96% up · 30 days

    Utilities Official MCP Registry Remote

  23. Kalkulo.eu calculators eu.kalkulo/calculators

    Read-only European tax, salary and benefit calculators with official sources and unknowns.

    100% up · 30 days

    Utilities Official MCP Registry Remote

  24. Pauhu eu.pauhu/data

    European data products with cited sources. Annual bulk access: not open for online purchase yet.

    100% up · 30 days

    Utilities Official MCP Registry Remote

  25. convert.express express.convert/transcribe

    Transcribe audio and video to text, SRT or VTT. Summaries, translation. Optional OAuth sign-in.

    100% up · 30 days

    Design and media Official MCP Registry Remote

  26. PortfolioFit fit.portfolio/portfoliofit

    Check normalized portfolios against mandates and calculate allocation constraints.

    100% up · 30 days

    Utilities Official MCP Registry Remote

  27. MCP Devis fr.custom-digital-services/mcp-devis

    Calculate French quote totals and VAT, list legal mentions, and render printable HTML quotes.

    100% up · 30 days

    Finance and payments Official MCP Registry Remote

  28. Lingoris — traduction assermentée fr.lingoris/traduction-assermentee

    Sworn (certified) translation in France: instant firm price, 100+ languages, order tracking.

    100% up · 30 days

    Utilities Official MCP Registry Remote

  29. Listar fr.listar/listar

    Find verified B2B emails, phone numbers and the decision makers of any company.

    100% up · 30 days

    Email Official MCP Registry Remote

  30. monappamoi fr.monappamoi/apps

    Host AI-generated single-file HTML apps with JSON persistence. No signup.

    100% up · 30 days

    Files and storage Official MCP Registry Remote

  31. Vérifier ma facture (Factur-X) fr.verifier-ma-facture/validateur

    Conformité Factur-X : 21 critères PDF/A-3, XML CII EN 16931 et BR-FR. Analyse locale, gratuite.

    100% up · 30 days

    Office documents and spreadsheets Official MCP Registry Remote

  32. var.gg Naming Memory gg.var/naming-memory

    Curated multilingual dictionary that names code identifiers from domain concepts (KO/JA/ZH/VI/EN).

    100% up · 30 days

    Memory and context Official MCP Registry Remote

  33. 艾达 ADA group.hengyu.ai/ada

    Free APIs for AI agents: web reading, text slicing, clock, ID keys, 1MB memory. No signup or fees.

    100% up · 30 days

    Memory and context Official MCP Registry Remote

  34. Capitolguide guide.capitol/capitolguide

    Navigate the U.S. Capitol complex: decode room codes, route buildings, check access, amenities.

    100% up · 30 days

    Utilities Official MCP Registry Remote

  35. Lumin guru guru.lumin/lumin

    The calculation and trust layer for astrology agents. Every value returns with its rule and source.

    100% up · 30 days

    Utilities Official MCP Registry Remote

  36. nextbank.holiday holiday.nextbank/bank-holidays

    Next bank holiday for UK, Ireland, France, Germany and Spain. Free daily quota, then USDC via x402.

    100% up · 30 days

    Finance and payments Official MCP Registry Remote

  37. Hungarian VAT, payroll, KATA/flat-rate tax, late interest, workdays and website legal checks.

    100% up · 30 days

    Finance and payments Official MCP Registry Remote

  38. Israeli supermarket prices (Foodiepedia) il.co.foodiepedia/prices

    Prices in 31 Israeli supermarket chains by barcode. Free search; API key or x402 pay-per-call.

    100% up · 30 days

    Web search and scraping Official MCP Registry Remote

  39. Zelta BMI for Indians in.zelta/bmi-india

    BMI check with Indian (Asian) cutoffs and a healthy weight range for any height.

    100% up · 30 days

    Utilities Official MCP Registry Remote

  40. AstroWay Applied readings info.astroway/applied

    Business, financial and wellness astrology, written for a use rather than a technique.

    100% up · 30 days

    Finance and payments Official MCP Registry Remote

  41. AstroWay Astrology API (full catalogue) info.astroway/astrology

    Every AstroWay endpoint as a tool: Western, Vedic, Chinese, Human Design, tarot, reports.

    100% up · 30 days

    Utilities Official MCP Registry Remote

  42. AstroWay Core astrology info.astroway/core

    Natal charts, planets, houses, aspects, dignities, rendering and the calendar.

    100% up · 30 days

    Utilities Official MCP Registry Remote

  43. AstroWay Psychological astrology info.astroway/psychological

    Archetypes, Jungian typology, shadow work and the relationship-style readings.

    100% up · 30 days

    Utilities Official MCP Registry Remote

  44. AstroWay Tarot info.astroway/tarot

    Rider-Waite-Smith, Marseille and Lenormand: spreads, draws, card pictures and spread readings.

    100% up · 30 days

    Utilities Official MCP Registry Remote

  45. AstroWay Vedic astrology info.astroway/vedic

    Vargas, dashas, panchang, shadbala, yogas, doshas, Jaimini, KP and Vastu Shastra.

    100% up · 30 days

    Utilities Official MCP Registry Remote

  46. Letlink ink.letl/letlink

    Create branded short links and QR codes, and pull click analytics by country, device and referrer.

    100% up · 30 days

    Data warehouses and analytics Official MCP Registry Remote

  47. 1Lookup io.1lookup/1lookup

    Verify phone numbers, emails and IPs, and check remaining plan credits.

    100% up · 30 days

    Email Official MCP Registry Remote

  48. Agent Weather io.agentweather/agent-weather

    Pay per call, solves one question. Raw public readings on AI agents and x402.

    100% up · 30 days

    Maps and location Official MCP Registry Remote