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Delx Backoff Schedule
x402
Delx Backoff Schedule is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).
Calculates a bounded exponential backoff schedule given a number of retry attempts, base delay, and cap, returning a machine-readable list of wait intervals.
Price / call$0.002
Success—
StatusUnknown
How this service works
Calculate a bounded exponential backoff schedule for reliable autonomous retries. Use it before an autonomous workflow acts on untrusted input, changes an API, retries a request, or evaluates production reliability. Returns bounded machine-readable JSON for $0.002 USDC via x402 on Base. Execution is deterministic, first-party, local-only, stateless, and does not call an upstream provider; structured validation failures are not billed.
Output
Returns a machine-readable JSON array of wait intervals in milliseconds, one per retry attempt, computed as bounded exponential backoff values (e.g. [250, 500, 1000, 2000, ...]) capped at the specified maximum. The schedule is deterministic and stateless — the same inputs always produce the same output.
Example use cases
Retry schedule for flaky API calls
“My workflow is calling an external API that sometimes fails transiently. Generate an exponential backoff schedule for 5 retry attempts with a 500ms base delay and a 60 second cap so I know exactly how long to wait between each retry.”
Planning retries for an autonomous agent
“I'm building an autonomous agent that needs to retry failed steps. Can you compute a bounded backoff schedule for 8 attempts starting at 100ms base delay and capped at 20 seconds, so the agent knows when to try again without hammering the service?”
Testing retry logic with short intervals
“For testing purposes, generate a backoff schedule for 4 attempts with a 50ms base delay and a 2000ms cap so I can verify my retry logic without waiting too long in my test environment.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/backoff-scheduleWhen to prefer
Choose this endpoint when you need a deterministic, stateless, bounded exponential backoff schedule computed server-side without shipping math logic locally. Ideal for autonomous agents and workflows that need machine-readable retry timing before acting on untrusted input or calling unreliable upstream APIs. Prefer it over hand-coding backoff logic when you want validated, capped intervals without managing the arithmetic yourself.
Side effects
- Invalid parameter values (e.g. attempts > 20, cap_ms > 3600000) return a structured validation error without billing
- Missing required fields fall back to documented defaults
- Malformed JSON body returns a 400-level error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| cap_ms | integer | |
| base_ms | integer | |
| attempts | integer |
Output
Schema · Response
{
"type": "json",
"example": {
"schema": "delx/backoff-schedule/v1",
"strategy": "exponential_cap",
"delays_ms": [
250,
500,
1000,
2000
],
"jitter_range": "0..delay_ms (full jitter recommended at execution time)",
"total_delay_ms": 3750
}
}Tags
x402
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