# Securaw CryptoVar Execution Stress / Cost Estimator

> Securaw CryptoVar Execution Stress / Cost Estimator is a paid API for AI agents from www.securaw.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-20).

Computes a total execution cost estimate in basis points from user-supplied spread, fees, market impact, and participation assumptions — no live trading or order book involved.

## Facts

- Endpoint: POST https://www.securaw.com/cryptovar/x402/execution_stress?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/securaw-cryptovar-execution-stress-cost-estimator-67021f40
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_EcAcHIWVH6UHglu0g4BeF

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 securaw-cryptovar-execution-stress-cost-estimator-67021f40 -d '<json body>'
```

Example prompt: Estimate my total crypto execution cost using spread of 8 bps, fees of 5 bps, impact coefficient k of 50 bps, participation of 0.2, and impact alpha of 0.6 — give me the all-in cost in basis points.

## When to prefer this

Choose this endpoint when you need a fast, deterministic, analytical execution cost estimate in basis points based on your own spread, fee, impact, and participation assumptions — rather than live market data or actual order routing. Ideal for pre-trade cost analysis, stress testing, quantitative research, and risk reporting workflows where auditability and reproducibility matter.

## Known failure modes

- Missing required fields (spread_bps, fees_bps, impact_k, participation, impact_alpha) returns a validation error
- Values outside allowed ranges (e.g. participation > 1, fees_bps > 10000) are rejected
- Missing or duplicate Idempotency-Key header may cause request rejection
- Payment failure or insufficient USDC balance blocks the call
- impact_alpha must be strictly positive (exclusiveMinimum: 0); zero or negative values are rejected

## How this service works

Execution cost estimate in basis points from supplied spread, fees, participation and impact assumptions. No trade execution or live order book. Idempotency-Key required.

## Output

Returns a total execution cost estimate expressed in basis points, computed as a function of half-spread, fees, optional noise, and a power-law market impact term (impact_k × participation^impact_alpha). No live order book or trade is executed; the result is a deterministic analytical estimate for stress-testing and pre-trade analysis.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "service": {
   "enum": [
    "execution_stress"
   ],
   "type": "string"
  },
  "parameters": {
   "type": "object",
   "title": "StressInput",
   "required": [
    "spread_bps",
    "fees_bps",
    "impact_k",
    "participation",
    "impact_alpha"
   ],
   "properties": {
    "fees_bps": {
     "type": "number",
     "title": "Fees Bps",
     "maximum": 10000,
     "minimum": 0,
     "description": "Fee cost contribution in basis points."
    },
    "impact_k": {
     "type": "number",
     "title": "Impact K",
     "maximum": 10000,
     "minimum": 0,
     "description": "Impact coefficient in bps; multiplied by participation^impact_alpha."
    },
    "noise_bps": {
     "type": "number",
     "title": "Noise Bps",
     "default": 0,
     "maximum": 10000,
     "minimum": 0,
     "description": "Optional nonnegative additive cost contribution in bps; default zero."
    },
    "spread_bps": {
     "type": "number",
     "title": "Spread Bps",
     "maximum": 10000,
     "minimum": 0,
     "description": "Spread cost contribution in basis points. 1 bp = 0.01%."
    },
    "impact_alpha": {
     "type": "number",
     "title": "Impact Alpha",
     "maximum": 10,
     "description": "Positive exponent applied to participation in the impact model.",
     "exclusiveMinimum": 0
    },
    "participation": {
     "type": "number",
     "title": "Participation",
     "maximum": 1,
     "minimum": 0,
     "description": "Participation fraction between 0 and 1; 0.2 means 20%."
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/securaw-cryptovar-execution-stress-cost-estimator-67021f40/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.securaw.com](https://www.zero.xyz/host/www.securaw.com/llms.txt)