# Coin Railz KYA Verified Agent Identity

> Coin Railz KYA Verified Agent Identity is a paid API for AI agents from coinrailz.com, paid per call via x402, $5/call, status unknown (last checked 2026-09-15).

Performs on-chain KYA (Know-Your-Agent) identity verification and compliance scoring for AI agents using the ERC-8004 standard

## Facts

- Endpoint: POST https://coinrailz.com/x402/verified-agent-identity
- Price: $5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/coin-railz-kya-verified-agent-identity-14522b8f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qwX3iJ5qU9k-nrTw1v05j

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 coin-railz-kya-verified-agent-identity-14522b8f -d '<json body>'
```

Example prompt: Run a KYA identity verification and on-chain compliance score for my AI agent using the ERC-8004 standard so I can confirm it has a trusted reputation before letting it execute autonomous payments.

## When to prefer this

Use this endpoint when you need blockchain-native KYA (Know-Your-Agent) identity verification with on-chain reputation scoring compliant with the ERC-8004 standard, particularly for B2B2C infrastructure where regulatory compliance and agent trustworthiness must be established before allowing autonomous payments or trading operations. Prefer this over generic off-chain identity checks when verifiable, tamper-resistant, chain-anchored attestation is required.

## Known failure modes

- Invalid or unrecognized agent identity credentials — returns success: false
- Agent wallet address not found on-chain — verification fails
- ERC-8004 standard lookup failure due to chain congestion or RPC issues
- Insufficient USDC balance to cover $5 per-call fee — payment rejected
- Non-compliant agent identity with low reputation score returned rather than error

## How this service works

KYA (Know-Your-Agent) identity verification - On-chain reputation & compliance scoring using ERC-8004 standard (Premium B2B2C Infrastructure)

## Output

Returns a JSON object indicating whether the agent identity verification succeeded, a compliance/reputation score, the service name, and a timestamp. Example: {result: 'Service executed successfully', service: 'verified-agent-identity', success: true, timestamp: '2026-02-07T01:44:25.571Z'}

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "description": "Query parameter for the service"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "application/json",
 "format": "json",
 "example": {
  "result": "Service executed successfully",
  "service": "verified-agent-identity",
  "success": true,
  "timestamp": "2026-02-07T01:44:25.571Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/coin-railz-kya-verified-agent-identity-14522b8f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from coinrailz.com](https://www.zero.xyz/host/coinrailz.com/llms.txt)