Penny Press

Connect Remote server

claude mcp add --transport http penny-press https://www.pennypress.org/mcp

{
  "mcpServers": {
    "penny-press": {
      "url": "https://www.pennypress.org/mcp"
    }
  }
}

{
  "servers": {
    "penny-press": {
      "type": "http",
      "url": "https://www.pennypress.org/mcp"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://www.pennypress.org/mcp

Tools 7 found in our last check

• list_essays

  List all published essays and fragments: titles, descriptions, prices, and reading URLs. Full text is free for humans at /read/{slug}; machine reads at /essays/{slug} are paid via x402 (USDC on Base).

• essay_payment_info

  Get the x402 payment details for one essay (price, network, asset, recipient wallet) so a machine buyer knows how to pay.

• lexicon_lookup

  Look up a term in the Penny Press Lexicon (the author's own definitions of his political-economy vocabulary). Returns free metadata — part of speech and the essays where the term appears — plus payment info for the $0.01 full definition.

• lexicon_snapshot_info

  Payment details for the Penny Press Lexicon full dataset snapshot ($0.25): every author-defined term with part of speech, definition, verbatim usage example, and source essays, as versioned JSON.

• common_cents_info

  Overview of Common Cents, the Penny Press collection of 20 author-curated quotations in five themed clusters: the themes, quote count, and payment info for the $0.01 full machine-readable set.

• witness_verify

  Check whether a SHA-256 content hash has been witnessed by LitWit, the Penny Press literary notary. Free. Returns the matching attestation entries (entry id, sequence, timestamp, title) or an empty result.

• witness_attest_info

  How to attest a work's fingerprint with LitWit ($0.05): what to submit, what the tamper-evident receipt contains, and the x402 payment details. The service never sees your work — only its hash.

Details

More finance and crypto servers See all

• RightCard

  Which of your credit cards to use at any store, from verified bank data. No bank login.

• Africa Compliance Data

  African holidays, business days, VAT, withholding tax, tax treaties, tax IDs and filing deadlines

• BusCalc Business Calculators

  Business calculators, data lookups, replayable receipts, and documentation for enterprise pilots.

• CarLoanMath

  US car loan math: monthly payment, compare loans, max price for your budget, amortization. Free.

• InfinityVolume

  Dollar volume across 13 stock markets and US sectors, against each one's own normal. No prices.

• xytara MCP Executor

  Pay-per-call MCP tools and signed on-chain attestations: 20 free/day, then x402 or a spend key.