# AgentTools API Health Check

> AgentTools API Health Check is a paid API for AI agents from agentstoolshub.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-12).

Probes a GET endpoint multiple times and returns status codes along with latency statistics (min, avg, max) to verify API responsiveness before committing to paid calls.

## Facts

- Endpoint: GET https://agentstoolshub.com/api/v1/dev/api-health-check?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agenttools-api-health-check-cb70b2fb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mYaFa4-dgkbza6CTdgu_h

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 agenttools-api-health-check-cb70b2fb
```

Example prompt: Before I start calling that API I found on the x402 Bazaar, probe it 5 times with a 3000ms timeout and tell me the status codes and min/avg/max latency so I know it's actually responding.

## When to prefer this

Choose this endpoint when an agent needs a cheap, low-risk way to verify that a GET API endpoint is live and performant before spending money on actual API calls — especially useful when evaluating newly discovered APIs from the x402 Bazaar or other unknown sources. Prefer this over ad-hoc single calls when you need statistical confidence (min/avg/max) across multiple runs rather than a one-shot ping.

## Known failure modes

- Target URL is unreachable or returns connection errors — reported status codes will reflect network failures
- Timeout too short for slow endpoints — all runs may time out, returning only timeout errors
- Invalid or malformed URL provided — request fails with input validation error
- Target endpoint requires authentication — 401 or 403 status codes returned rather than success
- DNS resolution failure for the target URL — all probe runs fail with network error

## How this service works

Probe a GET endpoint several times and report status codes and latency statistics (min/avg/max). The cheap way for an agent to verify an API — for example one found on the x402 Bazaar — responds before spending real money calling it. Use this when an agent needs to status and latency stats — test an API before relying on it.

## Output

Returns HTTP status codes observed across the probe runs alongside latency statistics including minimum, average, and maximum response times in milliseconds, giving the agent a clear picture of endpoint health and performance before committing to real usage.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "description": "GET endpoint"
      },
      "runs": {
       "type": "number",
       "description": "Test requests"
      },
      "timeoutMs": {
       "type": "number",
       "description": "Timeout per request (ms)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agenttools-api-health-check-cb70b2fb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentstoolshub.com](https://www.zero.xyz/host/agentstoolshub.com/llms.txt)