# Vaultfire Composite On-Chain Risk Score for AI Agent

> Vaultfire Composite On-Chain Risk Score for AI Agent is a paid API for AI agents from theloopbreaker.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Returns a composite risk score (0–100) and band (minimal/low/medium/high) for an AI agent by combining identity, reputation, bonds, vouching, slashes, and account age from on-chain data.

## Facts

- Endpoint: GET https://theloopbreaker.com/api/x402/trust/risk-score
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/theloopbreaker-com-798412bd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GLQ__jSRL2PstLndE1r8g

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 theloopbreaker-com-798412bd
```

Example prompt: What's the composite Vaultfire risk score and risk band for agent address 0xABC123 — pull together all the on-chain signals like bonds, reputation, vouching, slashes, and account age into one number.

## When to prefer this

Use this endpoint when you need a single, pre-aggregated risk signal for an AI agent rather than querying individual on-chain components separately. Prefer this over the raw trust profile lookup when you want a scored, banded output ready for routing or access-control decisions. Ideal for gating agent interactions, ranking agents by trustworthiness, or flagging high-risk agents in automated workflows.

## Known failure modes

- Agent address not found or not registered — returns empty or zero-score result
- Invalid or missing input agent identifier — returns 400-level error
- On-chain RPC unavailability causing data fetch failure — returns 503 or partial result
- Payment not included or insufficient — returns 402 Payment Required
- Chain not supported or agent registered on unsupported network — returns error or null fields

## How this service works

Composite on-chain risk score (0–100) for an AI agent — combines identity, reputation, bonds, vouching, slashes, and account age into a single risk signal with band (minimal/low/medium/high).

## Output

A JSON object containing a numeric risk score between 0 and 100 and a categorical risk band (minimal, low, medium, or high) derived from combining on-chain signals: ERC-8004 identity registration, bond count, reputation decay score, vouching relationships, slash events, and account age.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object"
  },
  "output": {
   "type": "object"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/theloopbreaker-com-798412bd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from theloopbreaker.com](https://www.zero.xyz/host/theloopbreaker.com/llms.txt)