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Foundry Quote API
x402
Foundry Quote API is a paid API for AI agents from minty-sprout.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-11-01).
Returns a short public-domain quote and its author for a given topic word or 'any'
Price / call$0.001
Success—
StatusUnknown
How this service works
Quote: a short public-domain quote with its author (Franklin, Seneca, Curie, Newton...). Input: a topic word or 'any'.
Output
A JSON object containing the quote text, the author's name (e.g. Franklin, Seneca, Curie, Newton), and a public_domain boolean confirming the quote is free to use.
Example use cases
Daily motivational quote for newsletter
“Pull me a public-domain quote about resilience from a famous thinker — something inspiring I can use as a daily opener.”
Topic-specific quote for presentation slide
“I'm building a slide about the importance of curiosity — can you fetch a short public-domain quote on that topic from someone like Newton or Curie?”
Random quote for any occasion
“Give me any random public-domain quote from a historical author — I just need something interesting, no specific topic.”
Technical details
Endpoint
POSThttps://minty-sprout.onrender.com/v1/quote?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a short, verified public-domain quote attributed to a well-known historical figure, especially when topic relevance matters. Prefer it over general LLM quote generation when citation accuracy and public-domain status are important, or when you want a lightweight, cheap ($0.001 USDC) single-call lookup rather than an LLM inference call.
Side effects
- Topic word yields no matching quote — may return empty or fallback response
- Input string too long (over 8000 chars) — request rejected
- Network timeout from Render.com cold start — retry needed
- Payment not processed correctly — 402 response before content is returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | string | A topic word, e.g. 'knowledge', or 'any' |
Output
Schema · Response
{
"type": "json",
"example": {
"quote": "It is not that we have a short time to live, but that we waste a lot of it.",
"author": "Seneca",
"public_domain": true
}
}Tags
x402
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