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Stupidly Clever

Serves verified calculators and versioned reference data, such as tax brackets and holiday calendars, over a REST API or MCP.

Free plan · From $19/moActively maintained

FinanceFor developersFree tier
stupidlyclever.com ↗
Open stupidlyclever.comAlternativesSet it up for my teamIs Stupidly Clever yours? Claim the card →
At a glanceswept Oct 13, 2026

≈ 9visits/mo

Use not read yet · estimate, read Oct 14, 2026

For
Developers and AI agents that need verified calculators, tax brackets and holiday data via API or MCP
Price
Free plan · From $19/mopricing page, read Oct 20, 2026
Activity
Actively maintainedsite updated 5 weeks ago
Runs as
API
Used for
  • convert salaries between countries at purchasing power parity
  • let an AI agent call verified calculators over MCP
read off stupidlyclever.com on Oct 20, 2026
Worth knowingcomputed from what we read · each with its source
  • On the web since 2024, older than 65% of its shelfINITE Atlas
  • Has an MCP server (1 in the registry)public registry →
  • Publishes llms.txt, a file written for AI assistantsstupidlyclever.com ↗
Pricingpricing page, read Oct 20, 2026

Free plan · From $19/mo

pricing page

Your datawhat they publish, each line with its page · read Oct 20, 2026

These are Stupidly Clever's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.

How a program reaches itfound, not claimed · read Oct 20, 2026

MCP server details →

This card as JSON, for your agent →

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Alternatives in Financeby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

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Three tools from the Atlas for the job you describe, each with what fits and what does not.

From people who use itnot part of the reading

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Questions this page answers
  • What is Stupidly Clever?

    Serves verified calculators and versioned reference data, such as tax brackets and holiday calendars, over a REST API or MCP. It is listed in the Atlas under Finance.

  • Who is Stupidly Clever for?

    Developers and AI agents that need verified calculators, tax brackets and holiday data via API or MCP

  • How much does Stupidly Clever cost?

    Stupidly Clever has a free plan; paid plans start at $19/mo, per its pricing page on 2026-10-20.

  • Is Stupidly Clever free?

    Yes, Stupidly Clever has a free plan, per its pricing page on 2026-10-20.

  • Is Stupidly Clever still maintained?

    Actively maintained: site updated 5 weeks ago.

  • Is Stupidly Clever safe?

    We do not audit vendors. What Stupidly Clever publishes, read 2026-10-20: GDPR, CCPA stated on its privacy policy.

  • How do I cancel Stupidly Clever?

    In its own words (terms of service, 2026-10-20): “You can cancel a paid plan at any time from your account dashboard; cancellation takes effect at the end of the current billing period, and access continues until then.”

  • Does Stupidly Clever give refunds?

    In its own words (terms of service, 2026-10-20): “Subscription fees are non-refundable for API usage already available to you during a billing period — we do not issue refunds or credits for partial months, unused calls, or calls already consumed.”

  • What are alternatives to Stupidly Clever?

    In Finance, by use: Twelve Data, Wisesheets, Ticker Scout, Netstate, Inc., Elfa AI, finlight.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.

How we read every tool → · By INITE Atlas Desk