# Delx Latency SLA Check

> Delx Latency SLA Check is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).

Compares a single observed latency measurement against an SLA threshold in milliseconds and returns a deterministic pass/fail result

## Facts

- Endpoint: POST https://api.delx.ai/api/v1/x402/latency-sla-check
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-latency-sla-check-5f3acad5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QQYDRsWsRHb5KzKxOp0sl

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability delx-latency-sla-check-5f3acad5 -d '<json body>'
```

Example prompt: My SLA threshold is 300ms — check whether my observed latency of 420ms is within SLA or breached.

## When to prefer this

Use this endpoint when you need a fast, stateless, zero-dependency check of whether a single latency measurement violates an SLA threshold — ideal for SRE automation, alerting pipelines, or ops math agents that need deterministic pass/fail JSON at minimal cost without building custom logic.

## Known failure modes

- Missing sla_ms or observed_ms fields returns a validation error
- Non-numeric values for either parameter cause a type error
- Negative latency values may produce unexpected comparison results
- Payment failure via x402 will prevent execution

## How this service works

Compare observed latency against an SLA threshold in milliseconds — call when comparing observed latency to an SLA threshold. Use for SRE/ops math agents buy from broad utility catalogs: SLA, error budget, success rate, and health scores with zero upstream cost. Returns deterministic machine-readable JSON for $0.003 USDC via x402 on Base. Execution is first-party, local-only, stateless, and memory-only with no paid upstream, no input retention, and no claim of live chain tip, web search, or med…

## Output

Returns a deterministic JSON object indicating whether the observed latency is within or exceeding the SLA threshold, including the delta between observed and SLA values and a boolean breach flag.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "sla_ms": {
   "type": "number",
   "description": "SLA latency threshold in milliseconds."
  },
  "observed_ms": {
   "type": "number",
   "description": "Observed latency sample in milliseconds."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "schema": "delx/util-latency-sla-check/v1",
  "sla_ms": 500,
  "overage_ms": 0,
  "within_sla": true,
  "observed_ms": 420
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-latency-sla-check-5f3acad5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.delx.ai](https://www.zero.xyz/host/api.delx.ai/llms.txt)