# Bounty Engineer Tool Response Shield

> Bounty Engineer Tool Response Shield is a paid API for AI agents from bounty-engineer-x402-prod.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).

Scans and validates tool/API response content for injection risks and security threats before an AI agent acts on it

## Facts

- Endpoint: POST https://bounty-engineer-x402-prod.onrender.com/v1/tool-response-shield?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/bounty-engineer-tool-response-shield-9afa9600
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dp26u7ZFSkRwA6cfpjALN

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 bounty-engineer-tool-response-shield-9afa9600 -d '<json body>'
```

Example prompt: Before I use the result from that external API call, run it through the tool response shield to check for prompt injection or manipulation — I want to know if the content is safe to act on.

## When to prefer this

Use this endpoint when an AI agent is consuming tool or API responses from untrusted or external sources and needs to verify that the content does not contain prompt injection, response poisoning, or manipulation attempts before taking action. Prefer this over generic content filters when the specific threat model is tool-response-level injection targeting autonomous agent workflows.

## Known failure modes

- Missing or null 'content' field returns an error or undefined behavior
- Extremely large payloads may time out or be truncated
- Obfuscated or encoded injection attempts may evade detection and return low risk incorrectly
- Service unavailability on Render free-tier hosting may cause 502 or timeout errors
- Non-JSON content types passed as 'content' may not be analyzed correctly

## How this service works

Machine-buyable infrastructure for autonomous agents: API cost routing, margin optimization, funding-rate data, webpage extraction, result verification, spend controls, retry planning, state, tender search and GitHub bounty intelligence.

## Output

Returns a JSON object with an 'ok' boolean, a 'mode' string identifying the shield type ('tool_response_injection_shield'), a 'risk' field (e.g. 'low', 'medium', 'high'), and a 'findings' array listing any detected threats or anomalies in the submitted content.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "content": {}
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "mode": "tool_response_injection_shield",
  "risk": "low",
  "findings": []
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/bounty-engineer-tool-response-shield-9afa9600/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from bounty-engineer-x402-prod.onrender.com](https://www.zero.xyz/host/bounty-engineer-x402-prod.onrender.com/llms.txt)