# Scribed Glossary — Thermodynamic Term Lookup

> Scribed Glossary — Thermodynamic Term Lookup is a paid API for AI agents from www.pennypress.org, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).

Returns the glossary definition of the term 'thermodynamic' from Scribed's essay repository, delivered after a micropayment.

## Facts

- Endpoint: GET https://www.pennypress.org/glossary/thermodynamic?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/scribed-glossary-thermodynamic-term-lookup-94fa77eb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ka-CGoehrMfXrz6bYgOMH

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability scribed-glossary-thermodynamic-term-lookup-94fa77eb
```

Example prompt: Can you pull up Scribed's glossary definition for 'thermodynamic'? It's a penny-per-call paid lookup from PennyPress.

## When to prefer this

Choose this endpoint when you specifically need the Scribed/PennyPress glossary definition of the term 'thermodynamic' — a curated, essay-contextual definition from a philosophy and freedom-of-thought publication. This is distinct from a general dictionary API and is best suited when you want the specific framing or usage Scribed applies to the concept, or when building a reading companion for Scribed essays. The micropayment model means access is programmatic and metered.

## Known failure modes

- Payment not completed — gloss returned as placeholder '(delivered after payment)'
- Invalid or missing properties parameter — may return empty or malformed response
- Term not found in glossary — endpoint may return null or an error for unrecognized terms
- Network or payment gateway timeout — x402 micropayment fails to settle

## How this service works

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

## Output

A JSON object containing the term ('thermodynamic'), its glossary definition (gloss), and the publication name ('Scribed'). The gloss field is only populated after a successful $0.01 USDC micropayment via the x402 protocol.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "term": "thermodynamic",
  "gloss": "(delivered after payment)",
  "publication": "Scribed"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/scribed-glossary-thermodynamic-term-lookup-94fa77eb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.pennypress.org](https://www.zero.xyz/host/www.pennypress.org/llms.txt)