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PopNx MCPMCP servers for people who use AI · explained in plain words

EasyPost MCP by usefulapi

by m190version 1.35.3i★ –iRuns in the cloud
Registry nameio.usefulapi/easypost

Install

Overview

Description from the maker (original English)

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

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Install

Pick the AI app you use, then copy the settings.

Before you install

  • Basic checks: 3 of 3 passed
  • Runs on the maker’s server: what you ask it goes through their server.
  • Can do 11 things (tools) easypost_list_shipments, easypost_get_shipment, easypost_list_trackers, easypost_get_tracker …
  • The registry lists no key to fill in.

You need

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

  1. Open Settings → Connectors
  2. Press Add custom connector
  3. Paste the address below and press Add
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Add2https://…3
https://easypost.usefulapi.io/mcp

Run this in your terminal

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

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

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

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "easypost": {
      "type": "http",
      "url": "https://easypost.usefulapi.io/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

  1. Open ChatGPT on the web → Settings → Connectors (Apps)
  2. Press Create or Add (some plans need Developer mode under Advanced first)
  3. Paste the address below, give it a name and save
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Create2https://…3
https://easypost.usefulapi.io/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Tool names and descriptions exactly as the server reported them on Nov 6, 2026. The maker wrote them, not us; we show them as plain text.

  • easypost_list_shipments

    List shipments on the account, most recent first, with pagination and optional filters. API: GET /shipments.

  • 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_list_trackers

    List package trackers, optionally filtered by tracking_code or carrier. API: GET /trackers.

  • 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_get_address

    Retrieve a single address by id, including verification details. API: GET /addresses/{id}.

  • 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"] }).

  • 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 /shipm

  • 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_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.

  • 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.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified against the domain usefulapi.io (the registry checks domain ownership)

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • ✓ Pass

    Endpoint responds

    Responded in 9 ms (HTTP 200)

  • – Not applicable

    Sign-in with OAuth

    No sign-in needed

  • ✓ Pass

    No hidden instructions in tool descriptions

    Read 11 tool descriptions and found no hidden instructions to the AI

Compared with others in Otheri

  • More stars than 0% of the other 32398 servers in this category
  • Published to the registry more recently than 97% of the other 32398 servers in this category
  • Basic checks equal to or better than 100% of the other 32398 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is EasyPost MCP by usefulapi safe?

It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.35.3) reached the registry yesterday.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, AI Deprecations

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Spec Driven Development

by formulahendry

MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.

Runs on your computer★ 440MITUpdated 14 months ago
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Remote Desktop Commander

by desktop-commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated yesterday
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AI Deprecations

by aideprecations.com

AI model shutdown dates, replacements, change feed and webhook alerts for 8 providers.

Runs in the cloudUpdated today
Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

EasyPost MCP by usefulapi

Rate shipments, buy labels, track packages and verify addresses via EasyPost, from Claude, Cursor, or any MCP client. Hosted, no local install — connect with your EasyPost API key.

Live endpoint: https://easypost.usefulapi.io/mcp · Homepage: https://usefulapi.io/easypost

Connect

  • Claude (claude.ai, Desktop): open Customize → Connectors, click + Add → Add custom connector, and paste https://easypost.usefulapi.io/mcp.
  • Claude Code: claude mcp add --transport http easypost https://easypost.usefulapi.io/mcp, then run /mcp to log in.
  • VS Code: Add to VS Code.
  • Cursor and other clients: add the URL as a remote MCP server:
{

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

Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and the login page asks for your EasyPost credentials.

Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/easypost/

On first connect you'll paste your EasyPost API key. It's validated, stored per-user, and scoped to you.

Tools

ToolTypeWhat it does
easypost_list_shipmentsreadList shipments
easypost_get_shipmentreadGet a shipment
easypost_list_trackersreadList trackers
easypost_get_trackerreadGet a tracker
easypost_list_addressesreadList addresses
easypost_get_addressreadGet an address
easypost_verify_addresswriteVerify an address
easypost_create_shipmentwriteCreate a shipment (get rates)
easypost_create_trackerwriteCreate a tracker
easypost_buy_shipmentwriteBuy a shipping label
easypost_refund_shipmentwriteRefund / void a label
easypost_usage_statusmetaUsage status (free-tier meter)
easypost_request_featuremetaRequest a missing feature
easypost_upgrademetaUpgrade to Pro or Pro+
easypost_cancel_subscriptionmetaCancel the Pro subscription

read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.

Pricing

PlanPriceLimit
Free$050 tool calls / month
Pro$9/mo or $90/yr (2 months free)Unlimited*

\*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to support@usefulapi.io.

Pro covers this server only. Subscribe with easypost_upgrade (it returns a Stripe Checkout link). Cancel any time with easypost_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running easypost_upgrade before then undoes the cancel. Or write to support@usefulapi.io.

License

MIT — see LICENSE. Documentation only; the server is hosted.

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