Utilities MCP servers

Generate and read PDFs for AI agents: a generate_pdf and a read_pdf tool, priced per document.

What's My IP Address: caller's public IP, ASN, geo, timezone, user-agent, headers, TLS info.

Generate 12V/24V/48V wiring diagrams and size wires, fuses, batteries, solar, and inverters.

Genderize MCP — gender prediction from first name (genderize.io, free, no auth)

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

Climatiq MCP — carbon footprint calculator with emission factors

List compression profiles, estimate gains, and compress images, PDFs, and Office files.

List ID photo presets, plan print layouts, and render printable HTML photo sheets.

Free deterministic tools for math, data transforms, dates, text, statistics, finance, and units.

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

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.

Render Mermaid diagrams, Markdown to PDF and outlines, image OCR, and media metadata cleanup.

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.

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.

Developer utilities over MCP: Base64 encode and decode, decode JWTs, format JSON, do percentages.

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

BaZi (Chinese Four Pillars) chart calculator. Structured chart data only, no predictions.

Validation suite: EU VAT (VIES), IBAN mod-97, email (MX+disposable), geo place lookup, VIN decode.

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

63 production tools for AI agents — one API key, pay per call in USDC (x402) or Stripe credits.