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Scribed — A penny for your thoughts...

https://www.pennypress.org/common-cents/full
● healthy ai

A repository of essays on freedom, truth, and the structures around us, in machine-readable form. Free for humans. Pennies for machines.

Category
ai
Chains
base, eip155:8453
Price
$0.0100–$0.2700 USDC

Quality grade

How grading works
A 72.4 / 100
Availability 20.0 / 20
Endpoint responded (HTTP 402)
Payability 15.0 / 15
  • ✓ Answers a real HTTP 402 challenge
  • ✓ Publishes a /.well-known/x402 descriptor
  • ✓ Payment address on record
  • ✓ Settlement network declared
  • ✓ Price declared
Demand 14.2 / 35
23 distinct payers, 176 USDC transfers in the last 30 days; the wallet is shared by 2 listings, so each is credited 1/2
Performance 9.2 / 10
Last probe answered in 343 ms (full marks at 200 ms or less)
Readiness 14.0 / 15
Agent readiness 93/100
Owner verified 0.0 / 5
Nobody has claimed this listing yet
Endpoint last checked 18 h ago. On-chain activity last read 3 d ago. Availability and on-chain demand are both re-probed daily; the grade updates automatically on the next pass. This grade sets search order and leaderboards; the readiness score below is shown for reference only.

x402 readiness

A · 93/100

Readiness is how fully this listing follows its protocol and how it behaved in our probes over 30 days. It is shown for reference and does not move it in search. Search order and leaderboards use the separate quality grade (here A, 72.4/100), which weighs availability, payability and on-chain demand. How the two differ

Valid payment requirements 10/10 Payment requirements carry a payee, a mainnet network and a price.
Live 402 challenge 25/25 Paid endpoint answers with an HTTP 402 challenge (343 ms).
x402 version n/a x402 version not observed yet.
Signed descriptor n/a No x402 standard defines a signed descriptor.
Uptime (30 days) 15/15 32/32 probes succeeded over 30 days (100%).
Resource declaration 10/10 Declares 71 paid resource(s).
Verified identity 5/10 Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control.
Freshness + modern flags 5/5 seen in a source within 7 days; declares x402.
Security declaration n/a Payment is the access control for an x402 resource.
Applicable criteria total 75 points, scaled to 100.
Responsiveness: Responsive (343 ms; bands ≤2.5 s, ≤5 s, ≤8 s, slower; penalty only).
Payment evidence: x402_challenge — We sent a request and got a live HTTP 402 challenge. Also: x402_manifest, catalog_listing. Qualifies the payment claim; adds no points.
Measured 2026-11-11.
Nine criteria, the same as the A2A readiness score, read from our daily probe of the paid endpoint, its payment requirements and 30-day probe history. Signed descriptor and security declaration are n/a for x402 (payment is the access control), as is an x402 version we have not observed; the remaining points are scaled to 100. Grades: A>=90, B>=75, C>=60, D>=40, F<40. It also feeds 15 points of the x402 quality grade.

Compared with peers

Against 10,082 reachable x402 APIs in our daily snapshot (2026-11-12 06:46 UTC). Display only; it does not change search order.

Readiness
Higher than 94% of peers
This listing 93 · peer median 78
Latency
Faster than 32% of peers
This listing 343 ms · peer median 205 ms

Where it loses the most points, and how to win them back

  • Verified identity −5 — Claim the listing and prove control of its domain.
    Now: Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control.

How many agent tools actually work · All statistics

Paid endpoints

71 resource(s) advertised by this origin. Each price below is that resource's own x402 price; the headline price is the range across them.

https://www.pennypress.org/essays/full

The complete Penny Press catalog in a single JSON response: every piece in full. Delivered after one payment instead of per-piece.

https://www.pennypress.org/essays/river-of-time

A fragment about time.

https://www.pennypress.org/essays/untamed-wilderness

A fragment about technology.

https://www.pennypress.org/essays/thermodynamic-proof

A fragment about truth.

https://www.pennypress.org/essays/techno-feudalism-un

An essay on AI, corporate capture, and the geopolitics of power.

https://www.pennypress.org/essays/small-change

A fragment about the economy of thought.

https://www.pennypress.org/essays/pax-decentralia

An ensemble about a decentralized future.

https://www.pennypress.org/essays/big-stakes

A fragment about the gamble.

https://www.pennypress.org/essays/contradictions-of-the-archipelago

An ensemble about paradise and perdition.

https://www.pennypress.org/essays/the-path-of-least-resistance

An ensemble on crime, incentives, and the economics of freedom.

https://www.pennypress.org/essays/the-agentic-paradigm

An essay about the impact of Artificial Intelligence on the International Political Economy.

https://www.pennypress.org/essays/root-and-cable

A fragment about the paved frontier.

https://www.pennypress.org/essays/fabricated-frontiers

An ensemble about the enemy within.

https://www.pennypress.org/essays/the-last-witness

An essay about the Baobab tree as a symbol of West African civilization.

https://www.pennypress.org/essays/calculus

A fragment about strategy and compromise.

https://www.pennypress.org/essays/the-game-of-money

An ensemble about money and self-interest.

https://www.pennypress.org/essays/confidence-game

A fragment about playing against the odds.

https://www.pennypress.org/essays/diminishing-returns

A fragment on the hunger that abundance can't feed.

https://www.pennypress.org/essays/fiat-masquerade

An ensemble about the contradictions of the fiat monetary order.

https://www.pennypress.org/essays/the-nameless-proof

An ensemble about trust and provenance in the digital age.

https://www.pennypress.org/essays/fait-accompli

A fragment about inflation and debasement.

https://www.pennypress.org/essays/the-delusion-of-command

An ensemble about power, empire, and the delusion of command.

https://www.pennypress.org/essays/elliptical-economy

A fragment about life in the city.

https://www.pennypress.org/essays/orange-game-theory

An ensemble about Bitcoin and the race to 21 million.

https://www.pennypress.org/essays/charade-of-shadows

A fragment about the theatre of fiat.

https://www.pennypress.org/essays/where-did-the-money-go

An essay about debt and development in the Eastern Caribbean.

https://www.pennypress.org/glossary/full

The complete Penny Press glossary in a single JSON response: every author's definition, as used across the essays. Delivered after one payment instead of per-term.

https://www.pennypress.org/glossary/denizens

Author's definition of "Denizens" as used in Penny Press essays. The definition itself is delivered after payment.

https://www.pennypress.org/glossary/perdition

Author's definition of "perdition" as used in Penny Press essays. The definition itself is delivered after payment.

https://www.pennypress.org/glossary/connoisseurs

Author's definition of "connoisseurs" as used in Penny Press essays. The definition itself is delivered after payment.

https://www.pennypress.org/glossary/behemoths

Author's definition of "behemoths" as used in Penny Press essays. The definition itself is delivered after payment.

https://www.pennypress.org/glossary/poignant

Author's definition of "poignant" as used in Penny Press essays. The definition itself is delivered after payment.

https://www.pennypress.org/glossary/cohort

Author's definition of "cohort" as used in Penny Press essays. The definition itself is delivered after payment.

https://www.pennypress.org/glossary/sacrosanct

Author's definition of "sacrosanct" as used in Penny Press essays. The definition itself is delivered after payment.

https://www.pennypress.org/glossary/unabated

Author's definition of "unabated" as used in Penny Press essays. The definition itself is delivered after payment.

https://www.pennypress.org/glossary/lawfare

Author's definition of "lawfare" as used in Penny Press essays. The definition itself is delivered after payment.

https://www.pennypress.org/glossary/august

Author's definition of "august" as used in Penny Press essays. The definition itself is delivered after payment.

https://www.pennypress.org/glossary/metropoles

Author's definition of "metropoles" as used in Penny Press essays. The definition itself is delivered after payment.

https://www.pennypress.org/glossary/tomfoolery

Author's definition of "tomfoolery" as used in Penny Press essays. The definition itself is delivered after payment.

https://www.pennypress.org/glossary/crony-capitalism

Author's definition of "crony capitalism" as used in Penny Press essays. The definition itself is delivered after payment.

https://www.pennypress.org/glossary/hyperscalers

Author's definition of "hyperscalers" as used in Penny Press essays. The definition itself is delivered after payment.

https://www.pennypress.org/glossary/multilateral

Author's definition of "multilateral" as used in Penny Press essays. The definition itself is delivered after payment.

https://www.pennypress.org/glossary/stewardship

Author's definition of "stewardship" as used in Penny Press essays. The definition itself is delivered after payment.

https://www.pennypress.org/glossary/plethora

Author's definition of "plethora" as used in Penny Press essays. The definition itself is delivered after payment.

https://www.pennypress.org/glossary/cornucopia

Author's definition of "cornucopia" as used in Penny Press essays. The definition itself is delivered after payment.

https://www.pennypress.org/glossary/demonetized

Author's definition of "demonetized" as used in Penny Press essays. The definition itself is delivered after payment.

https://www.pennypress.org/glossary/demobilized

Author's definition of "demobilized" as used in Penny Press essays. The definition itself is delivered after payment.

https://www.pennypress.org/glossary/pax-americana

Author's definition of "Pax Americana" as used in Penny Press essays. The definition itself is delivered after payment.

https://www.pennypress.org/glossary/pax-decentralia

Author's definition of "Pax Decentralia" as used in Penny Press essays. The definition itself is delivered after payment.

https://www.pennypress.org/glossary/techno-feudal

Author's definition of "techno-feudal" as used in Penny Press essays. The definition itself is delivered after payment.

How to call

cURL · x402-fetch / x402-axios will auto-handle 402
curl -sS -i -X GET https://www.pennypress.org/common-cents/full  # expect HTTP 402 Payment Required (about $0.01/call)
/.well-known/x402.json
https://www.pennypress.org/.well-known/x402

Listed in

Directories this entry was found in.

x402scan since 2026-09-24 mcp since 2026-10-08 a2a since 2026-10-08 submission since 2026-10-15