Utilities MCP servers

Exact character/word counting, reversal, palindrome checks, indexing, sorting; Unicode-safe.

Carbon Interface MCP — Carbon Interface API (v1)

Spin the wheel right in the chat.

buzzword-density MCP — wraps StupidAPIs (keyless — no credential needed)

Days between dates & workdays

Emailable MCP — wraps the Emailable email verification API (emailable.com)

Cron runs across timezones

Random User MCP — wraps randomuser.me (free, no auth)

Islamic prayer times & calendar MCP (Aladhan API). Keyless.

Energy-Charts (Fraunhofer ISE) MCP — European electricity generation, prices, and capacity.…

yesterdays-number MCP — wraps StupidAPIs (keyless — no credential needed)

Wolfram Alpha MCP — computational, factual, and quantitative queries

Veriphone MCP — wraps the Veriphone phone-validation API (veriphone.io)

Translate MCP — LibreTranslate-compatible machine translation.

Timezone MCP — wraps timeapi.io (free, no auth)

temperature-random MCP — wraps StupidAPIs (keyless — no credential needed)

Sunrise-Sunset MCP — wraps the sunrisesunset.io API (free, no auth)

scream-void MCP — wraps StupidAPIs (keyless — no credential needed)

schrodingers-boolean MCP — wraps StupidAPIs (keyless — no credential needed)

QR Code MCP — wraps api.qrserver.com (free, no auth)

phoenix-number MCP — wraps StupidAPIs (keyless — no credential needed)

Ofgem energy data: the UK energy regulator's published statistics on the domestic price cap and…

Octopus Energy public API MCP — UK energy tariffs & products.

OCR.space MCP — wraps the OCR.space API (ocr.space) for image/PDF → text OCR.

Numverify MCP — wraps the Numverify phone-number validation API (APILayer)

Newton MCP — wraps the Newton math solver API (free, no auth)

mercury-number MCP — wraps StupidAPIs (keyless — no credential needed)

Math.js MCP — wraps the mathjs.org API (free, no auth)