Discover / www.pennypress.org

Penny Press

■ Challenge detected

A fragment about the paved frontier.

Listed price
$0.01
Challenge detected
9 of the last 9 checks
Median response
102 ms
Last checked
16 Oct, 23:40 UTC
In our index since
26 Sept 2026

Endpoint

curl -i https://www.pennypress.org/essays/root-and-cable
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.
25 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://www.pennypress.org

  • GET/essays/big-stakes$0.01A fragment about the gamble.
  • GET/essays/the-game-of-money$0.02
  • GET/glossary/full$0.25
  • GET/essays/the-path-of-least-resistance$0.02
  • GET/essays/pax-decentralia$0.02
  • GET/essays/fiat-masquerade$0.02
  • GET/essays/thermodynamic-proof$0.01
  • GET/essays/confidence-game$0.01
  • POST/witness/attest$0.05Witness the SHA-256 fingerprint of a literary work: submit a title, content hash, and optional pen name; receive a tamper-evident, hash-chained receipt. Timestamping, not endorsement. We never see the work itself.
  • GET/essays/calculus$0.01
  • GET/essays/untamed-wilderness$0.01
  • GET/essays/the-agentic-paradigm$0.05
  • GET/essays/fabricated-frontiers$0.02An ensemble about the enemy within.
  • GET/common-cents/full$0.01
  • GET/lexicon/snapshot$0.25
  • GET/essays/contradictions-of-the-archipelago$0.02
  • GET/essays/river-of-time$0.01
  • GET/essays/full$0.15
  • GET/essays/fait-accompli$0.01A fragment about inflation and debasement.
  • GET/essays/techno-feudalism-un$0.05
  • GET/essays/root-and-cable$0.01A fragment about the paved frontier.
  • GET/essays/the-last-witness$0.05
  • GET/essays/diminishing-returns$0.01
  • GET/essays/the-nameless-proof$0.02
  • GET/essays/small-change$0.01

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 25 of 25 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/www.pennypress.org

Recent checks

5 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.16 Oct 2026
All 9 checks
When (UTC)ResultHTTPResponse
16 Oct, 23:40 UTCChallenge detected402176ms
15 Oct, 19:10 UTCChallenge detected40287ms
14 Oct, 12:00 UTCChallenge detected402102ms
12 Oct, 06:05 UTCChallenge detected40220ms
10 Oct, 15:44 UTCChallenge detected402126ms
9 Oct, 09:34 UTCChallenge detected402141ms
8 Oct, 06:42 UTCChallenge detected402130ms
7 Oct, 03:32 UTCChallenge detected40222ms
5 Oct, 05:04 UTCChallenge detected40220ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 16 Oct, 23:40 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for Penny Press?

Its listed price is $0.01.

What payment terms does Penny Press advertise?

The listing advertises x402, Base and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is Penny Press listed?

In x402 Bazaar and x402-list.com. Superstables first indexed it on 26 Sept 2026.

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