# Bounty Engineer Failure Cost Firewall

> Bounty Engineer Failure Cost Firewall is a paid API for AI agents from bounty-engineer-x402-prod.onrender.com, paid per call via x402, $24.9/call, status unknown (last checked 2026-10-12).

Analyzes a caller-supplied dependency graph to compute blast radius, weighted exposure, and criticality scores, then decides whether to allow or block an operation based on failure-cost thresholds and node criticality limits.

## Facts

- Endpoint: POST https://bounty-engineer-x402-prod.onrender.com/v1/failure-cost-firewall?utm_source=zero.xyz
- Price: $24.9/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-failure-cost-firewall-b3e7cb65
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9bEHn7YVwx-qsxOeuKb_6

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-failure-cost-firewall-b3e7cb65 -d '<json body>'
```

Example prompt: Before we trigger the checkout workflow, run a failure cost firewall check on my dependency graph — nodes are checkout (exposure $600, criticality 1, depends on db), db (exposure $200, criticality 0.9, no deps), and analytics (exposure $50, criticality 0.2, depends on db) — targeting the db node, with a max exposure cap of $1000 and no more than 2 critical nodes allowed.

## When to prefer this

Use this endpoint when you need a structured, auditable risk gate before triggering multi-node agent workflows where financial exposure or cascading failures are a concern. It is best suited for autonomous agent pipelines that maintain an explicit dependency graph and want a deterministic allow/block decision with a verifiable SHA256 report, rather than a heuristic or manual risk review. Prefer this over generic monitoring tools when you need per-node criticality weighting and gross vs. weighted exposure decomposition in a single API call.

## Known failure modes

- Invalid node array (fewer than 1 or more than 120 nodes) causes validation error
- target_ids referencing nodes not present in the nodes array may return unexpected results
- max_exposure_usd or max_critical_nodes set to zero or negative values may produce trivial block decisions
- Missing required fields returns schema validation error
- Service unavailability on onrender.com free-tier infrastructure may cause timeouts
- $24.9 USDC payment failure blocks the request before analysis begins

## 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 allow/block decision, list of blockers (if any), affected nodes with their criticality and exposure, a list of critical nodes, gross and weighted exposure totals, affected count, a SHA256 report hash for audit purposes, and a limitations disclaimer clarifying the analysis is based only on the caller-supplied graph and does not execute or cancel any remote agent.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "nodes": {
   "type": "array",
   "maxItems": 120,
   "minItems": 1
  },
  "target_ids": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "maxItems": 20,
   "minItems": 1
  },
  "max_exposure_usd": {
   "type": "number"
  },
  "max_critical_nodes": {
   "type": "integer"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "mode": "failure_cost_firewall",
  "blockers": [],
  "decision": "allow",
  "target_ids": [
   "db"
  ],
  "limitations": [
   "Blast radius is derived only from the caller-supplied dependency graph and declared exposure values.",
   "It does not execute, cancel or quarantine any remote agent."
  ],
  "report_sha256": "15b65259c5dec8c5c7d229402a0ff9e963013cd1ae5dcdb4e23415218bc89580",
  "affected_count": 3,
  "affected_nodes": [
   {
    "id": "checkout",
    "criticality": 1,
    "dependencies": [
     "db"
    ],
    "exposure_usd": 600
   },
   {
    "id": "db",
    "criticality": 0.9,
    "dependencies": [],
    "exposure_usd": 200
   },
   {
    "id": "analytics",
    "criticality": 0.2,
    "dependencies": [
     "db"
    ],
    "exposure_usd": 50
   }
  ],
  "critical_nodes": [
   "checkout",
   "db"
  ],
  "gross_exposure_usd": 850,
  "weighted_exposure_usd": 790
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/bounty-engineer-failure-cost-firewall-b3e7cb65/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)