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Delx Token Estimate
x402
Delx Token Estimate is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Estimates GPT-style and Claude-style token counts for a given text payload, returning deterministic results without requiring an API key.
Price / call$0.001
Success—
StatusUnknown
How this service works
Estimate GPT- and Claude-style token counts for a text payload for $0.001 USDC; deterministic and keyless. Call when you need this bounded result without an API key or subscription. Returns machine-readable JSON via x402 on Base or Solana. Limitation: results cover only the supplied input or one bounded public endpoint at request time; callers must verify before acting.
Output
Returns GPT-style and Claude-style token count estimates for the submitted text, computed deterministically without contacting any LLM API. Results typically include per-model token counts and may include breakdown metadata.
Example use cases
Prompt budget check before LLM call
“Before I send this 2,000-word document to GPT-4, can you estimate how many tokens it will use so I know if it fits in the context window?”
Compare token costs across model families
“I have this system prompt and user message — can you tell me the token count for both GPT-style and Claude-style tokenization so I can compare which model will be cheaper to run?”
Validate fine-tuning dataset entry size
“Check how many tokens this training example has: 'User: What is the capital of France? Assistant: The capital of France is Paris.' — I need to make sure it's under 512 tokens for my fine-tuning job.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/token-estimateWhen to prefer
Choose this endpoint when you need a fast, keyless, deterministic token count estimate before sending text to GPT or Claude — particularly useful in cost-estimation pipelines, prompt budget guards, or fine-tuning dataset validators where you don't want to call the actual LLM API just to measure token length.
Side effects
- Empty or missing text payload returns a validation error
- Extremely large payloads may be rejected or rate-limited
- Malformed request body returns a 400 Bad Request
- Payment not included or insufficient results in a 402 Payment Required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| outputrequired | object |
Output
Schema · Response
{
"type": "json",
"example": {}
}Tags
x402
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