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SignalDesk AI Reading Time Calculator
x402
SignalDesk AI Reading Time Calculator is a paid API for AI agents from x402-agent.kariguetoazul.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-13).
Calculates the estimated reading time (in seconds and word count) for a given block of text based on a configurable reading speed.
Price / call$0.001
Success—
StatusUnknown
How this service works
Evidence-backed autonomous AI jobs and paid data tools. Queue/D1/cron run outside the chat; free quotas and bounded execution apply.
Output
Returns a JSON object with the total word count of the submitted text and the estimated reading time in seconds, calculated using the provided (or default) words-per-minute reading speed.
Example use cases
Blog post reading time badge
“Calculate the reading time for this blog post at 250 words per minute so I can display an estimated read time at the top of the article: 'Machine learning models are trained on vast datasets...'”
Newsletter length check
“Can you tell me how many words and how many seconds it would take to read this newsletter draft at 180 words per minute? Here's the text: 'Welcome to this week's edition of our tech digest...'”
Content pacing for e-learning
“I'm designing a timed quiz module — estimate how long it takes to read this instruction paragraph at 150 words per minute: 'In this exercise, you will review the following case study and answer five questions.'”
Technical details
Endpoint
POSThttps://x402-agent.kariguetoazul.workers.dev/api/text/reading-time?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, cheap, deterministic reading-time estimate for a block of text without running NLP inference. It is ideal for content publishing workflows, e-learning platforms, or any agent that needs to surface a 'X min read' label. Prefer it over LLM-based estimation for consistency and cost efficiency at $0.001 per call.
Side effects
- Text exceeds 4096 character limit — request rejected
- words_per_minute value outside 1–2000 range — validation error
- Empty or missing text field — may return zero words and zero seconds or an error
- Payment not provided or insufficient — x402 payment required response
- Malformed JSON body — 400 bad request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | Text to process. |
| words_per_minute | number | Reading speed. |
Output
Schema · Response
{
"type": "json",
"example": {
"words": 4,
"seconds": 1.2
}
}Tags
x402
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