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Delx Commerce — Character Frequency Counter
x402
Delx Commerce — Character Frequency Counter is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).
Counts the frequency of each character in a given text string and returns the top characters by count along with totals.
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
Returns a JSON object with a ranked list of the top characters and their counts (e.g. [{char: 'b', count: 3}]), the total character count across the input, the number of unique characters, and a schema identifier string.
Example use cases
Frequency analysis of a password
“Analyze this string for me — how many times does each character appear in 'P@ssw0rd!!2024'? Show me the most frequent ones first.”
Letter distribution in a sentence
“What are the most common characters in 'the quick brown fox jumps over the lazy dog'? Give me a ranked breakdown by frequency.”
Unique character count for validation
“Tell me how many unique characters and total characters are in 'Mississippi' and which ones show up most often.”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/char-freq?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, cheap, pay-per-call character frequency computation with no signup required. Ideal for agents that occasionally need character distribution stats without embedding a full NLP library. Prefer this over writing custom code when you want verifiable, deterministic output in a standardized schema at $0.001 per call.
Side effects
- Empty or missing 'text' field returns an error or empty result
- Extremely long strings may be truncated or rejected
- Non-UTF8 or binary input may cause unexpected character counts
- Payment failure via x402 protocol results in 402 response before processing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | Input field: text. |
Output
Schema · Response
{
"type": "json",
"example": {
"top": [
{
"char": "b",
"count": 3
},
{
"char": "a",
"count": 2
},
{
"char": "c",
"count": 1
}
],
"count": 6,
"schema": "delx/util-char-freq/v1",
"unique": 3
}
}Tags
x402
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