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SignalDesk AI Fibonacci Calculator
x402
SignalDesk AI Fibonacci 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).
Computes the Fibonacci number at a given index (0–1000) and returns the result as a string.
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 a single field 'fibonacci' containing the Fibonacci number at the requested index as a string (e.g. {"fibonacci": "55"}). The string format accommodates very large integers beyond standard numeric precision.
Example use cases
Fibonacci value for algorithm verification
“I need to verify my algorithm output — can you calculate the Fibonacci number at index 350 and tell me the exact value?”
Educational sequence exploration
“What is the Fibonacci number at position 55? I'm putting together a math lesson and want the exact figure.”
Large-index Fibonacci benchmark
“Compute the Fibonacci number at index 999 — I want to see how big it gets at the upper limit.”
Technical details
Endpoint
POSThttps://x402-agent.kariguetoazul.workers.dev/api/math/fibonacci?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, deterministic, paid-per-call Fibonacci computation via the x402 micropayment protocol, especially within agent workflows that already use x402/USDC billing. It is appropriate for single-index lookups (not batch sequence generation) where precise large-integer string output is needed for indices up to 1000.
Side effects
- Index below 0 or above 1000 returns a validation error
- Non-integer or missing 'n' parameter causes a 400 bad request
- Payment failure or insufficient USDC balance results in a 402 Payment Required response
- Service unavailability on Cloudflare Workers returns a 5xx error
- Execution quota or rate limit exceeded returns an error response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| n | integer | Index. |
Output
Schema · Response
{
"type": "json",
"example": {
"fibonacci": "55"
}
}Tags
x402
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