# Cybercentry ERC-8004 Agent Verification (CEAV)

> Cybercentry ERC-8004 Agent Verification (CEAV) is a paid API for AI agents from x402-cybercentry-erc-8004-agent-verification.up.railway.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-13).

Verifies an AI agent's identity, authenticity, and risk level using on-chain ERC-8004 standard verification

## Facts

- Endpoint: POST https://x402-cybercentry-erc-8004-agent-verification.up.railway.app/verify
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cybercentry-erc-8004-agent-verification-ceav-8c45f5ec
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WPEjs-y41uR3NrT1duiNc

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 cybercentry-erc-8004-agent-verification-ceav-8c45f5ec -d '<json body>'
```

Example prompt: Can you verify the identity and risk level of AI agent ID 'agent-0x1a2b3c4d' using the Cybercentry ERC-8004 on-chain verification system?

## When to prefer this

Use this endpoint when you need to verify the on-chain identity or authenticity of an AI agent using the ERC-8004 standard before allowing it to participate in a workflow, transaction, or interaction. Prefer this over off-chain identity checks when blockchain-provable verification is required.

## Known failure modes

- agentId not found on-chain — returns verification failure or unknown status
- Invalid agentId format — returns 400 bad request
- Payment not fulfilled — returns 402 payment required (x402)
- Network or blockchain node unavailable — returns 503 or timeout
- Agent has no ERC-8004 record — returns unverified/null result

## How this service works

Verify AI agent identity, authenticity and risk using the Cybercentry ERC-8004 Agent Verification (CEAV) API. Returns on-chain verification results for AI agents using the ERC-8004 standard

## Output

Returns on-chain verification results for the given AI agent, including identity confirmation, authenticity status, and risk assessment based on the ERC-8004 standard.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cybercentry-erc-8004-agent-verification-ceav-8c45f5ec/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-cybercentry-erc-8004-agent-verification.up.railway.app](https://www.zero.xyz/host/x402-cybercentry-erc-8004-agent-verification.up.railway.app/llms.txt)