# Usefulapi Easypost MCP server

Source: https://glimind.com/server/mcp-registry%2Fio.usefulapi%2Feasypost
Registry id: `mcp-registry/io.usefulapi/easypost`
Status: auth-required (checked 2026-10-27T02:28:08.057Z)

## Verdict

Usefulapi Easypost MCP server answered 100% of Glimind's liveness checks over 30 days, better than 42% of MCP servers, with 64 ms median handshake and 0 outages in 90 days. Its agent-readiness grade is A (92/100) across 11 tools, costing an agent about 2,147 tokens to load. Checked every few minutes; no tool is ever called.

## Measurements (30 days)

| Metric | Value | Better than |
|---|---|---|
| Uptime, 30 days | 100% | 42% of MCP servers |
| Median handshake latency | 64 ms | 88% of MCP servers |
| p95 handshake latency | 426 ms | — |
| Checks in 30 days | 212 | — |
| Outages, 90 days | 0 | — |
| Median recovery | — | — |
| Agent-readiness score | 92/100 (A) | 73% of MCP servers |
| Tools | 11 | — |
| Tool-list size for an agent | ~2,147 tokens | 51% of MCP servers |
| Days observed | 28 | — |

## Install

```json
{
  "mcpServers": {
    "usefulapi-easypost-mcp-server": {
      "type": "http",
      "url": "https://easypost.usefulapi.io/mcp"
    }
  }
}
```

Claude Code:

```sh
claude mcp add --transport http usefulapi-easypost-mcp-server https://easypost.usefulapi.io/mcp
```

## Tools (11)

- `easypost_buy_shipment`: PURCHASE a shipping label for a shipment at a chosen rate. WARNING: this CHARGES the EasyPost account balance and is irreversible except by requesting a refund 
- `easypost_create_shipment`: Create a shipment from a to_address, from_address, and parcel, returning the available RATES from all enabled carriers. This only RATES the shipment — it does N
- `easypost_create_tracker`: Start tracking a package by its carrier tracking code. Returns the tracker with current status. No charge. API: POST /trackers (body { tracker }).
- `easypost_get_address`: Retrieve a single address by id, including verification details. API: GET /addresses/{id}.
- `easypost_get_shipment`: Retrieve a single shipment by id, including its available rates, tracking_code, and postage_label (if purchased). API: GET /shipments/{id}.
- `easypost_get_tracker`: Retrieve a single tracker by id, including current status and tracking_details history. API: GET /trackers/{id}.
- `easypost_list_addresses`: List saved addresses on the account, with pagination. API: GET /addresses.
- `easypost_list_shipments`: List shipments on the account, most recent first, with pagination and optional filters. API: GET /shipments.
- `easypost_list_trackers`: List package trackers, optionally filtered by tracking_code or carrier. API: GET /trackers.
- `easypost_refund_shipment`: Request a refund (void) of a purchased shipping label. WARNING: reverses a purchase; approval depends on the carrier and label age. API: POST /shipments/{id}/re
- `easypost_verify_address`: Create and verify a US or international address, returning deliverability and normalized/corrected fields. No charge. API: POST /addresses (body { address, veri

Measured by Glimind (https://glimind.com): MCP handshake + tool list only, no tool is ever called. CC BY 4.0.