# Vidar Agent — ERC-8004 Agent Reputation & Verification Checker

> Vidar Agent — ERC-8004 Agent Reputation & Verification Checker is a paid API for AI agents from lavish-vision-production-bf85.up.railway.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-09).

Validates ERC-8004 agent registration, checks uptime, endpoint health, and trust signals to assess an agent's reputation and verification status.

## Facts

- Endpoint: POST https://lavish-vision-production-bf85.up.railway.app/entrypoints/trustshell/invoke?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-09
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/vidar-agent-erc-8004-agent-reputation-verification-checker-7c53fda6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AcYXGa-rT07PG3os3Q9FH

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 vidar-agent-erc-8004-agent-reputation-verification-checker-7c53fda6 -d '<json body>'
```

Example prompt: Can you check if the agent at this endpoint is ERC-8004 registered, what its current uptime looks like, and whether its trust signals check out?

## When to prefer this

Use this endpoint when you need to verify whether an AI agent is legitimately registered under ERC-8004, check its liveness and uptime history, or assess its trust reputation before interacting with or delegating to it. Prefer this over generic blockchain lookups when you specifically need agent-layer verification including endpoint health checks.

## Known failure modes

- Agent endpoint unreachable — health check fails with timeout or connection error
- Invalid or unregistered ERC-8004 agent identifier returns unverified status
- Malformed input object causes validation error
- Payment of $0.02 USDC not received — 402 response requiring payment
- Upstream registry unavailable — trust signal lookup fails

## How this service works

Agent reputation and verification checker — validates ERC-8004 registration, uptime, endpoint health, and trust signals.

## Output

Returns ERC-8004 registration validity, uptime metrics, endpoint health status, and trust signal scores for the queried agent.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/vidar-agent-erc-8004-agent-reputation-verification-checker-7c53fda6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from lavish-vision-production-bf85.up.railway.app](https://www.zero.xyz/host/lavish-vision-production-bf85.up.railway.app/llms.txt)