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Random Fact by Topic
x402
Random Fact by Topic is a paid API for AI agents from flat-rate-llm.kikoribera03.workers.dev, paid per call via x402, $0.0025/call, status unknown (last checked 2026-09-15).
Returns one curious, true fact in English or Spanish, optionally filtered by topic (science, computing, history, or nature), with a unique ID for session deduplication and seed support for reproducibility.
Price / call$0.0025
Success—
StatusUnknown
How this service works
60 paid endpoints with no metering, no API key and no account. Each endpoint has one flat price per call, whatever the size of the request: LLM completions with automatic failover across several large models, read-only EVM tooling over Base, Ethereum, Polygon, Arbitrum and Optimism, and pure crypto utilities that touch no network.
Output
A JSON object containing a unique fact ID (for deduplication across a session), the fact text, the topic category, the language, and the total number of available facts in the dataset.
Example use cases
Daily trivia bot for Slack
“Pull me a new science fact in English every day, making sure to skip any IDs I've already used so we never repeat ourselves.”
Spanish-language nature quiz
“Get me a true nature fact in Spanish — use seed 'quiz-42' so the same fact comes up when I replay this quiz session.”
History learning assistant
“Give me a random history fact I haven't seen yet — I've already got IDs 1, 5, and 11, so exclude those please.”
Technical details
Endpoint
POSThttps://flat-rate-llm.kikoribera03.workers.dev/v1/content/factWhen to prefer
Choose this endpoint when you need a single, categorized, deduplicated curiosity fact with reproducibility support — especially in sessions where repeat-avoidance matters (e.g., daily trivia bots, quiz flows). Prefer it over generic LLM prompting when you need consistent IDs to track seen facts, topic filtering across science/computing/history/nature, or bilingual (en/es) delivery at a flat per-call rate.
Side effects
- Invalid topic value returns an error or falls back to any topic
- Invalid language code may default to English or return an error
- All facts excluded via the exclude list may return an empty result or an error
- Invalid or missing seed format may be silently ignored
- Network or worker-side errors return a non-200 HTTP status with no fact body
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| seed | string | Same seed always returns the same fact. |
| topic | string | science | computing | history | nature. Omit for any. |
| exclude | array | Ids already seen, comma-separated in a GET. |
| language | string | en | es. Defaults to en. |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| id | string | |
| fact | string | |
| topic | string | |
| total | number | |
| language | string |
Tags
x402
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