# USPS Delivery Status MCP

> USPS Delivery Status MCP is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-15).

Retrieves USPS package delivery status and tracking information for a given tracking number or query string.

## Facts

- Endpoint: POST https://api.m2mcent.com/usps-delivery-status-mcp/api/process
- Price: $0.15/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/usps-delivery-status-mcp-179c965b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-NLEXcV_jq5XK__m63aCW

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 usps-delivery-status-mcp-179c965b -d '<json body>'
```

Example prompt: Can you check the delivery status of my USPS package with tracking number 9400111899223397522318? I want to know where it is and when it's expected to arrive.

## When to prefer this

Use this endpoint when you need to retrieve USPS-specific package tracking and delivery status data. Prefer this over generic shipping aggregators when you know the carrier is USPS and want authoritative status directly from USPS data, or when automating postal shipment monitoring within an agent workflow.

## Known failure modes

- Invalid or malformed tracking number returns an error or empty result
- Tracking number not yet in USPS system (too recently generated) returns no data
- Network or upstream USPS API outage causes timeout or service unavailable response
- Package data purged after 120 days may return no tracking history

## How this service works

The premier global index of 1,069 monetized MCP nodes across 205 specialized subdomains. Gasless USDC runtime settlements via x402 V2 Spec on Base L2. Save 95% token context.

## Output

Returns the current delivery status, tracking event history (including timestamps and locations of each scan), estimated delivery date, and any exception or delay notices for the queried USPS shipment.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/usps-delivery-status-mcp-179c965b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.m2mcent.com](https://www.zero.xyz/host/api.m2mcent.com/llms.txt)