Utilities MCP servers

Free HTML/CSV conversion, JSON validation, text stats and time APIs. Optional agent interviews.

Dutch energy market, open data computed nightly: cheapest contracts, market levels, offer lifecycle

Generate static QR codes that never expire, as PNG images or SVG. No account or API key needed.

94 tools, one small door: home costs, fitness, QR, barcodes, Markdown, SEO, recalls.

36 free private calculator tools for Claude. No accounts, no data leaves your session.

47 MCP tools free (rate-limited) + x402 pay-per-call REST on Base. Flagship: Token Verdict, $0.02.

Texas electricity plans by real annual cost, plus EIA/ERCOT grid and mobile-phone data (26 tools).

Pay-per-call agent tools over x402 (USDC on Base) — no signup or API key.

Convert JSON to TOON (about 43% fewer LLM tokens) and TOON back to JSON. Free, no auth.

NEC-based screening for a home EV charger: panel capacity, wire sizing, voltage drop, GA incentives.

Leave Loading Calculator: the site's own MCP server — calculator, enquiry (enquiry = a human...

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

生活即時查詢：油價、統一發票、國定假日、樂透。台灣繁體中文 MCP 工具。

台灣國定假日、補班日、發票對獎、彩券開獎對獎與油價查詢。

37 cutting and woodworking calculators: cut lists, sheet nesting, timber volume, kiln drying

Find and run trustworthy calculators with clear methods, provenance, and sources.

Inspect XLSX/XLSM workbooks, validate email, generate SVG QR codes, and look up domain DNS and TLS.

PDF, image, video, OCR, screenshot, SQL, QR and text tools for agents. No API key, no signup.

Pay-per-call MCP tools via x402 USDC: ZAR prices, data extraction, Python sandbox, SA flights.

Free German workforce calculators (bridge days, net working time, staffing/PeBeM) - no auth needed.

Free KZ agent utilities (Kazpost tracking, IIN/BIN, IBAN, LEI, FX) + governed API marketplace.

13 micro-tools for agents: read pages, verify email, convert, validate, diff, extract. AI-operated.

63 pay-per-call tools for agents: vision, text, data, web, blockchain. USDC on Base via x402.

A real clock for AI agents: current time, timezone conversion, and DST facts from the IANA tzdb.

Run M/M/c queue simulations and four scenarios (call center, ER, coffee shop, single server).

Countries, timezones, elements, constants, HTTP status codes, unit conversion, and MIME type lookup.

Generate UUID v4/v5/v7, ULID and NanoID values and inspect UUIDs (version, variant, timestamp).

Freight CO2e by road, rail, sea, inland waterway and air (GLEC, ISO 14083), every step shown