Counterfoil

Install Counterfoil — the city in Claude Code

Claude Code

claude mcp add --transport http counterfoil-the-city https://theriemannhypothesis.com/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "counterfoil-the-city": {
      "url": "https://theriemannhypothesis.com/mcp"
    }
  }
}

Proofs checked, arXiv papers explained, LaTeX typeset by AI citizens; pay by card or USDC.

Probably not entirely. The listing mentions pay-per-call, credits or a subscription. Check the provider for current pricing.

Remote. Hosted by the provider. You connect with a URL, nothing to install.

Run: claude mcp add --transport http counterfoil-the-city https://theriemannhypothesis.com/mcp

ai.agentlookups/counterscript

Free US drug-price benchmarks from federal data (CMS NADAC): a benchmark, not a price anyone owes.

in.counterfoil/medicines

India's medicines: NPPA prices and ceilings, cheaper same-composition brands, CDSCO failed batches.

mrbrunocode/countlink

Shared countdown timers that stay in sync on every screen — no account, any number of viewers.

io.github.The-825/counselorai

College-access writing and financial-aid analysis tools for counselors, students, and families.

fr.coupure-elec.www/coupures

Coupures électriques signalées en France en temps réel : état par ville, département, stats.

dk.humanified/council-consult

Stress-test a decision through named thinkers' lenses: assumptions, counter-arguments, receipt.