# SYNTHORA x402 Service Trust Decision Support

> SYNTHORA x402 Service Trust Decision Support is a paid API for AI agents from x402-service-trust.hergertsynthora.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-11).

Evaluates trust signals for x402 services — reliability, delivery, payment, and identity — and returns a structured decision with facts, inferences, and recommended action.

## Facts

- Endpoint: POST https://x402-service-trust.hergertsynthora.com/service?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synthora-x402-service-trust-decision-support-9a89b893
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oVS7VlqyRTuMvHnhTwqLX

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 synthora-x402-service-trust-decision-support-9a89b893 -d '<json body>'
```

Example prompt: Can you assess whether this x402 service is trustworthy before I start paying for it? Here's what I know: it's listed on x402scan, charges 0.01 USDC per call, and I want to know about its reliability, payment delivery record, and identity signals.

## When to prefer this

Choose this endpoint when an AI agent needs to make a structured go/no-go trust decision about an x402 service before committing payments or integrating it into a workflow. It is specifically designed for the x402 ecosystem and returns machine-readable outputs (facts, inferences, confidence, recommended action) that agents can act on programmatically, unlike generic web search or reputation tools.

## Known failure modes

- Insufficient evidence provided leads to low-confidence decision with many limitations listed
- Ambiguous question results in a generic or hedged recommended action
- No trust signals available for an unknown service returns empty facts and sources arrays
- Payment failure (0.005 USDC not received) returns 402 before any analysis is performed
- Malformed question input returns an error or null decision

## How this service works

x402 service trust decision support covering reliability, delivery, payment, identity and trust signals from supplied evidence. Qwen3.8-27B; 0.005 USDC on Base.

## Output

A JSON object containing: a structured decision string, an array of supporting facts and their sources, inferences drawn from evidence, known limitations, any contradictions found, a confidence score (0–1), a freshness indicator, and a recommended action string.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "question": {
   "type": "string",
   "description": "Decision question with optional evidence/context"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "niche": "x402_service_trust",
  "result": {
   "facts": [],
   "sources": [],
   "decision": "...",
   "freshness": "...",
   "confidence": 0,
   "inferences": [],
   "limitations": [],
   "contradictions": [],
   "recommended_action": "..."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synthora-x402-service-trust-decision-support-9a89b893/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-service-trust.hergertsynthora.com](https://www.zero.xyz/host/x402-service-trust.hergertsynthora.com/llms.txt)