# StealthGuard Attestation Bundle

> StealthGuard Attestation Bundle is a paid API for AI agents from stealthguard-402.onrender.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-17).

Runs a combined cryptographic prompt-safety check, URL threat scan, and token contract verification in a single call for autonomous AI agent workflows.

## Facts

- Endpoint: POST https://stealthguard-402.onrender.com/v1/security/attestation-bundle?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stealthguard-attestation-bundle-6a7f5922
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UfE-cMBLOnLs_mgZQiMkb

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 stealthguard-attestation-bundle-6a7f5922 -d '<json body>'
```

Example prompt: Before my agent executes this next step, run a full StealthGuard attestation bundle — check the prompt for injection attacks, scan the target URL for threats, and verify the token contract address for honeypots or drainers.

## When to prefer this

Choose this endpoint when an autonomous AI agent needs a bundled, single-call security gate covering prompt injection, URL threats, and token contract verification simultaneously — rather than calling three separate services. Ideal for DeFi agents, agentic workflows interacting with untrusted external inputs, or any pipeline where a combined cryptographic attestation is needed before execution. Prefer over standalone prompt-scrubbers when you also need on-chain contract and URL threat coverage in one atomic result.

## Known failure modes

- Malformed or missing required input fields return a validation error
- Unresolvable URLs or contract addresses may result in incomplete attestation
- Service cold-start on Render may cause elevated latency or timeout on first call
- Payment failure via x402 protocol blocks the request before processing
- Ambiguous or very short prompt inputs may yield low-confidence safety verdicts

## How this service works

Cryptographic prompt-safety + URL threat + token contract verification bundle for autonomous AI agent workflows.

## Output

Returns a JSON object containing a status field (TRUST or BLOCK), the tool name used, and an agent_continuation object with structured guidance on whether the agent should proceed, along with threat details and attestation verdicts for prompt safety, URL threat level, and token contract integrity.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "target_url": {
   "type": "string",
   "description": "Target dApp or contract URL to screen"
  },
  "prompt_text": {
   "type": "string",
   "description": "Prompt text to attest for prompt safety"
  },
  "token_address": {
   "type": "string",
   "description": "Token contract address on Base or Solana"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stealthguard-attestation-bundle-6a7f5922/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from stealthguard-402.onrender.com](https://www.zero.xyz/host/stealthguard-402.onrender.com/llms.txt)