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NexusAPI Character Count
x402
NexusAPI Character Count is a paid API for AI agents from nexus-api-virid.vercel.app, paid per call via x402, $0.014164/call, status unknown (last checked 2026-09-15).
Counts the number of characters in a given text string
Price / call$0.014164
Success—
StatusUnknown
How this service works
Crypto, AI, Social Media, Finance, Weather, Tools & more. Pay per call in USDC on Base. No API keys.
Output
Returns a numeric character count representing the total number of characters in the provided text string, including spaces and punctuation.
Example use cases
Validating social media post length
“Can you count the characters in this tweet draft so I know if it's under 280: 'Just launched our new product and I couldn't be more excited — check out the link in our bio for early access and a special discount!'”
Checking form field character limits
“Count the characters in this bio I wrote for my profile: 'Passionate software engineer with 10 years of experience building scalable web apps, open-source contributor, and coffee enthusiast.' — I need to make sure it's under 160 characters.”
Measuring SMS message length
“I need to know how many characters are in this SMS message I'm about to send: 'Hi Sarah, just a reminder that your appointment is tomorrow at 3pm. Please reply YES to confirm or call us to reschedule.' Is it within the 160-character SMS limit?”
Technical details
Endpoint
POSThttps://nexus-api-virid.vercel.app/api/tools/text/char-countWhen to prefer
Use this endpoint when you need a quick, pay-per-call character count without setting up API keys or running local string-length logic. Ideal for AI agents validating text against character limits (SMS, Twitter, form fields) in automated workflows where a remote computation step is acceptable.
Side effects
- Empty input string returns zero or an error
- Very long strings may be truncated or rejected
- Non-string input types may cause a validation error
- Network or payment failure returns a 402 or 5xx response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| query | string | Search query or input parameter |
Output
Schema · Response
{
"type": "object",
"description": "API response data"
}Tags
x402
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