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Delx Error Budget
x402
Delx Error Budget 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).
Calculate remaining error budget and burn rate from total requests, failed requests, and an SLO target percentage
Price / call$0.002
Success—
StatusUnknown
How this service works
Calculate remaining failure budget and burn from traffic, failures, and an SLO target. 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 bounded machine-readable JSON object containing the calculated error budget — including allowed failures, failures consumed, remaining budget (count and percentage), and burn rate — derived deterministically from the supplied total_requests, failed_requests, and target_percent inputs. No upstream provider is called; the computation is local and stateless.
Example use cases
Pre-deploy reliability gate check
“Before we push this change, we had 87 failures out of 120,000 requests with a 99.95% SLO — do we still have enough error budget left to safely proceed?”
Autonomous retry safety check
“My workflow is about to retry a batch of 500 requests that previously failed — we've already seen 300 failures out of 200,000 total today on a 99.9% SLO. Can you check if we have the budget to absorb more failures?”
End-of-day SLO burn report
“We finished the day with 1,250 failed requests out of 500,000 total. What does our error budget look like against our 99.8% SLO target?”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/error-budgetWhen to prefer
Choose this endpoint when an AI agent or autonomous workflow needs a fast, cheap, deterministic SLO error-budget calculation without standing up its own math logic — especially as a preflight gate before retries, API changes, or actions on untrusted input. Ideal for agent pipelines that need bounded, machine-readable reliability signals at $0.002 per call with no external data dependencies.
Side effects
- Invalid input values (e.g. failed_requests > total_requests) return a structured validation error without billing
- target_percent outside 0–100 range returns a validation failure
- Non-integer request counts cause schema validation errors
- Network or payment authorization failures may prevent execution
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| target_percent | number | |
| total_requests | integer | |
| failed_requests | integer |
Output
Schema · Response
{
"type": "json",
"example": {
"schema": "delx/error-budget/v1",
"exhausted": false,
"burn_percent": 20.202,
"target_percent": 99.9,
"total_requests": 100000,
"failed_requests": 20,
"allowed_failures": 99,
"remaining_failures": 79
}
}Tags
x402
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