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Delx Commerce — Agent Delivery Retry Plan Calculator
x402
Delx Commerce — Agent Delivery Retry Plan Calculator 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).
Computes a retry schedule (delay intervals and attempt count) for an agent delivery operation given an HTTP status code and backoff parameters.
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 an array of delay intervals in milliseconds (delays_ms), a boolean indicating whether the given status is retryable, and the maximum number of attempts. Also includes evidence metadata: whether inputs were retained (always false), the SHA-256 of the input, and the number of external calls made (always 0).
Example use cases
Retry plan for transient 503 error
“My agent delivery just got a 503 back. Can you compute a retry schedule with a 250ms base delay, factor of 2, max 3 attempts, and retryable statuses 500, 502, 503, and 504?”
Check if 429 is retryable with custom backoff
“Figure out whether HTTP 429 is retryable and give me the delay intervals if I use a 500ms base delay, factor 1.5, and allow up to 5 attempts — retryable statuses are 429, 503.”
Validate retry logic for agent pipeline
“I'm building an agent delivery pipeline and got a 500 error. Can you generate the retry delay plan with base delay 100ms, factor 3, max 4 attempts, and retryable statuses 500, 502, 503?”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/agent-delivery-retry-plan?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs a deterministic, verifiable, in-memory retry schedule computation without writing custom backoff logic. It is ideal when auditability matters (input hash is returned), no data is retained, and you need a cheap ($0.001 USDC) pay-per-call utility with no signup friction. Prefer it over rolling your own retry logic when operating in an agentic pipeline that already uses x402 micropayments on Base or Solana.
Side effects
- Invalid or missing status code returns a validation error
- Non-numeric factor or base_delay_ms causes a schema rejection
- retryable_statuses array exceeding 256 items is rejected
- Malformed request body returns a parse error
- Payment not included or insufficient USDC results in HTTP 402
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| factor | number | Factor supplied to Agent Delivery Retry Plan; used only for this bounded calculation and processed in memory without retention. |
| status | integer | Status supplied to Agent Delivery Retry Plan; used only for this bounded calculation and processed in memory without retention. |
| base_delay_ms | integer | Base Delay Ms supplied to Agent Delivery Retry Plan; used only for this bounded calculation and processed in memory without retention. |
| maximum_attempts | integer | Maximum Attempts supplied to Agent Delivery Retry Plan; used only for this bounded calculation and processed in memory without retention. |
| retryable_statuses | array | Retryable Statuses supplied to Agent Delivery Retry Plan; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"delays_ms": [
250,
500
],
"retryable": true,
"maximum_attempts": 3
},
"schema": "delx/util-agent-delivery-retry-plan/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "3febfbef54575bfc00d024ab7df28390ed0c68d500f390742540ab5dc9cf94cc",
"external_calls": 0
},
"operation": "delivery_contract:agent_delivery_retry_plan"
}
}Tags
x402
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