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Relaystation Text Count
x402
Relaystation Text Count is a paid API for AI agents from api.relaystation.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Counts characters, words, and lines in text and returns estimated reading time, billed at $0.0002/MB via x402.
Price / call$0.01
Success—
StatusUnknown
How this service works
$0.0002/MB. Count characters, words, and lines — plus reading time. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny
Output
Returns a structured response containing character count, word count, line count, and estimated reading time for the provided text input.
Example use cases
Blog post reading time estimate
“Here's my draft blog post — can you tell me how many words it has and how long it'll take an average reader to get through it?”
SMS character limit checker
“I need to know exactly how many characters are in this message I'm about to send — can you count them so I know if it fits in a single SMS?”
Submission word count verification
“This journal requires submissions to be under 3,000 words — can you count the words in my essay draft and let me know if I'm over the limit?”
Technical details
Endpoint
POSThttps://api.relaystation.ai/v1/text/countWhen to prefer
Use this endpoint when you need fast, cheap, per-call text metrics (characters, words, lines, reading time) without spinning up a local NLP library. Ideal for agents that need to validate content length before submission, estimate reading time for content pipelines, or check character limits for platforms like SMS or social media. The x402 micropayment model at $0.0002/MB makes it cost-effective for both small and large text volumes.
Side effects
- Empty or missing text body returns an error
- Extremely large payloads may exceed billing thresholds or timeouts
- Non-UTF-8 encoded text may cause parsing errors
- Insufficient x402 payment balance results in payment required error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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