# HyperGrowth FillShield – Hyperliquid Pre-Submit Execution Guard

> HyperGrowth FillShield – Hyperliquid Pre-Submit Execution Guard is a paid API for AI agents from api.hyper-growth.xyz, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Returns a pre-submit execution decision artifact (FillShield) that guards Hyperliquid agent orders before submission, costing 0.10 USDC per call via x402 micropayment.

## Facts

- Endpoint: POST https://api.hyper-growth.xyz/v1/hyperliquid-fillshield
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hypergrowth-fillshield-hyperliquid-pre-submit-execution-guard-a79f2609
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UxMztXYv-42iqBVld8PmQ

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 hypergrowth-fillshield-hyperliquid-pre-submit-execution-guard-a79f2609 -d '<json body>'
```

Example prompt: Before I submit this long ETH-PERP order on Hyperliquid, run a FillShield check on it — I want to make sure the execution conditions look safe and I'm okay with the 0.10 USDC guard fee.

## When to prefer this

Use this endpoint when an AI agent is about to submit an order to Hyperliquid and needs a real-time pre-submission execution quality check to avoid bad fills, adverse market conditions, or unfavorable execution. Prefer this over post-trade analysis tools when the goal is prevention rather than review, and when operating in an automated agent pipeline that can pay per-decision via x402.

## Known failure modes

- Payment not included or rejected — 402 Payment Required if x402 micropayment header is missing or invalid
- Malformed order parameters — 400 Bad Request if required trade fields are absent
- Insufficient USDC balance — payment fails and request is rejected
- Exchange connectivity issues — upstream Hyperliquid data unavailable causing 503
- Rate limiting if too many requests in quick succession

## How this service works

Buy HyperGrowth x402 decision artifacts for Hyperliquid agents. Start with FillShield, a 0.10 USDC pre-submit execution guard.

## Output

A JSON decision artifact indicating whether the pending Hyperliquid order passes the pre-submit execution guard, along with any risk signals or conditions that influenced the verdict.

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/hypergrowth-fillshield-hyperliquid-pre-submit-execution-guard-a79f2609/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.hyper-growth.xyz](https://www.zero.xyz/host/api.hyper-growth.xyz/llms.txt)