# DeFi Signal API – VPS Bot Health Check

> DeFi Signal API – VPS Bot Health Check is a paid API for AI agents from wazir-x402.duckdns.org, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).

Returns live PM2 process health status for 50+ DeFi scanner bots running on a VPS across Base, Arbitrum, Optimism, and Solana

## Facts

- Endpoint: GET https://wazir-x402.duckdns.org/api/health
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/defi-signal-api-vps-bot-health-check-420e2e39
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_V3MN9hiPXPog6sKHUTK8G

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 defi-signal-api-vps-bot-health-check-420e2e39
```

Example prompt: Can you check if all my DeFi scanner bots are currently running — I need the live PM2 health status for the full bot fleet across Base, Arbitrum, Optimism, and Solana?

## When to prefer this

Use this endpoint when you need real-time operational health of a self-hosted DeFi bot fleet running PM2 on a VPS, specifically for bots scanning Base, Arbitrum, Optimism, and Solana. Prefer this over generic uptime monitors when you need chain-specific DeFi scanner process data.

## Known failure modes

- VPS unreachable — connection timeout or network error
- PM2 daemon not responding — partial or empty status returned
- Bot status stale if VPS is under load
- 402 Payment Required if USDC payment of $0.002 is not attached
- Non-standard duckdns.org domain may have DNS reliability issues

## How this service works

Unieke bot-data van live DeFi-scanners op Base, Arb, OP en Solana

## Output

A JSON object reporting VPS bot health including live PM2 status for all 50+ DeFi scanner bots, indicating which processes are running, stopped, or errored across supported chains (Base, Arbitrum, Optimism, Solana).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  },
  "additionalProperties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "note": "VPS bot-gezondheid — live PM2 status alle 50+ bots"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/defi-signal-api-vps-bot-health-check-420e2e39/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from wazir-x402.duckdns.org](https://www.zero.xyz/host/wazir-x402.duckdns.org/llms.txt)