# Orac Agent Trust — Reputation Scoring for AI Agents

> Orac Agent Trust — Reputation Scoring for AI Agents is a paid API for AI agents from orac-trust.orac.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Returns a comprehensive trust score, tier, recommendation, and detailed breakdown for an AI agent or entity from the Orac Knowledge Graph

## Facts

- Endpoint: POST https://orac-trust.orac.workers.dev/v1/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/orac-agent-trust-reputation-scoring-for-ai-agents-63d03e16
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6hBg3XG3BvYxIzeux_qG6

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 orac-agent-trust-reputation-scoring-for-ai-agents-63d03e16 -d '<json body>'
```

Example prompt: Before we delegate any tasks to 'Orac', can you pull its trust score and recommendation from the Orac Knowledge Graph so I know if it's safe to work with?

## When to prefer this

Use this endpoint when an AI agent needs to vet another agent, service, or entity before trusting it with tasks, data, or payments. Prefer this over generic web searches when you need a structured, scored, and tiered reputation assessment drawn from the Orac Knowledge Graph, including trust network relationships and a safety-screened recommendation.

## Known failure modes

- Entity not found in Agentic Economy Index — returns found: false with no score
- Prompt injection detected in context field — safety screening rejects the request
- Invalid or missing entity field — returns 400 validation error
- Service unavailable on Cloudflare Workers edge — returns 5xx
- Payment not received or insufficient — returns 402 Payment Required

## How this service works

Comprehensive trust assessment for AI agents — reputation score, tier, recommendation, and full breakdown from the Orac Knowledge Graph

## Output

A JSON object containing: the entity's trust score (0-1 float), trust tier (e.g. 'new', 'established'), recommendation (e.g. 'CAUTION', 'TRUSTED'), rank position out of total indexed agents, a breakdown of scoring factors (pagerank, age, safety, relations, attestations, observation density), the entity's trust network (who it trusts and who trusts it), and whether the entity was found in the index.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "entity"
 ],
 "properties": {
  "entity": {
   "type": "string",
   "description": "Entity name to look up in the Agentic Economy Index"
  },
  "context": {
   "type": "string",
   "description": "Optional request context for safety screening (checked for prompt injection)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "rank": {
  "total": 265,
  "position": 20
 },
 "tier": "new",
 "found": true,
 "entity": "Orac",
 "breakdown": {
  "pagerank": 0,
  "age_factor": 0.2,
  "safety_factor": 1,
  "relation_factor": 1,
  "attestation_factor": 0,
  "observation_density": 0.78
 },
 "entity_type": "agent",
 "trust_score": 0.39,
 "trust_network": {
  "trusts": [
   {
    "entity": "x402",
    "relation": "uses"
   }
  ],
  "trusted_by": []
 },
 "recommendation": "CAUTION"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/orac-agent-trust-reputation-scoring-for-ai-agents-63d03e16/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from orac-trust.orac.workers.dev](https://www.zero.xyz/host/orac-trust.orac.workers.dev/llms.txt)