# Mekong Trade Intel Ping / Heartbeat API

> Mekong Trade Intel Ping / Heartbeat API is a paid API for AI agents from api.mekongtradeintel.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-25).

Returns a pong response with server timestamp, uptime, and host ID to verify the x402 payment stack and server liveness.

## Facts

- Endpoint: POST https://api.mekongtradeintel.com/ping?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-25
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mekong-trade-intel-ping-heartbeat-api-bb0955e9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hjDo7ctkIT7OnVtVqSN6d

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 mekong-trade-intel-ping-heartbeat-api-bb0955e9 -d '<json body>'
```

Example prompt: Ping the Mekong Trade Intel heartbeat endpoint and tell me if the server is up — I want to confirm my x402 USDC payment stack is working end-to-end and see the server timestamp and uptime.

## When to prefer this

Choose this endpoint when you need the cheapest possible live call to verify an x402/USDC micropayment flow on Base, confirm API liveness before invoking more expensive endpoints, or debug your agent payment stack without side effects. At $0.001/call it is the lowest-cost way to validate end-to-end connectivity.

## Known failure modes

- Payment failure if wallet has insufficient USDC on Base — returns 402 Payment Required
- Network timeout if server is unreachable — no response body
- Invalid x402 payment header format — payment rejected before processing
- Server error on the host — may return 500 with no pong body

## How this service works

Ping / heartbeat API for x402 agents: pong + server timestamp + uptime + host id. Test your x402 payment stack end-to-end. $0.001/call, USDC on Base. No account or API key needed.

## Output

A JSON response containing a 'pong' acknowledgment, the current server timestamp in ISO 8601 format, the server uptime duration, and a unique host identifier confirming which server instance handled the request.

## 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": [
      "POST"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "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/mekong-trade-intel-ping-heartbeat-api-bb0955e9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.mekongtradeintel.com](https://www.zero.xyz/host/api.mekongtradeintel.com/llms.txt)