Easypost MCP Server

io.usefulapi/easypost

not responding

Easypost is listed as active in the registry but did not answer our last check. It exposes 11 tools. Last commit 1 Aug 2026.

MCP server for EasyPost — rate shipments, buy & refund labels, track packages, verify addresses.

Uptime history 40 hours of history · worst hour 0%

40 hours agonow

42.9%

Uptime 24h

39 of 91 checks

Tools

read from the server

171 ms

Response time

average over 24h

Stars

last commit 1 Aug 2026

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

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

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "easypost": {
      "url": "https://easypost.usefulapi.io/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.easypost]
url = "https://easypost.usefulapi.io/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "easypost": {
      "url": "https://easypost.usefulapi.io/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "easypost": {
      "url": "https://easypost.usefulapi.io/mcp"
    }
  }
}

Available tools 11

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

easypost

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_refund_shipment). Pick a rate_id from the rates returned by easypost_create_shipment or easypost_get_shipment. API: POST /shipments/{id}/buy (body { rate: { id }, insurance? }).

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 NOT purchase a label and does NOT charge the account; buying is a separate step (easypost_buy_shipment). API: POST /shipments (body { shipment }).

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}/refund.

easypost_verify_address

Create and verify a US or international address, returning deliverability and normalized/corrected fields. No charge. API: POST /addresses (body { address, verify: ["delivery"] }).

Endpoints

URL	Transport	State	Latency	Checked
https://easypost.usefulapi.io/mcp	streamable-http	answering	44 ms	7 min ago

Easypost — questions

Answers built from our own checks of this server.

What can Easypost do?

It exposes 11 tools, read directly from the server on our last check. Among them: easypost_buy_shipment, easypost_create_shipment, easypost_create_tracker, easypost_get_address, easypost_get_shipment, easypost_get_tracker and 5 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Easypost working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 39 of 91 checks got a reply (42.9%), average response time 171 ms. The bar chart above shows every period we have measured.

The registry lists Easypost as active — why does it not respond?

The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.

How do I connect Easypost?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Easypost need an API key?

No. Easypost completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 11 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Easypost?

It answers our handshake in 171 ms on average, which is faster than 69% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Easypost open source?

Yes — it is published under the MIT licence, written in JavaScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.