How does the MCP calculate resale value?

It uses the item's age and current condition to estimate a depreciation curve and a realistic market price range.

Can I see my actual profit after fees?

Yes, the calculate_net_proceeds capability subtracts platform fees from the sale price to show your net earnings.

Will it tell me if I should fix something?

Yes, the evaluate_disposal_utility capability compares the cost of repairs against the item's market value to recommend a strategy.

Which AI clients can use this MCP?

You can use this with any MCP-compatible client like Claude, Cursor, Windsurf, or VS Code.

Do I need to host this myself?

No, Vinkius hosts and manages the MCP for you, so it is ready to use as soon as you connect.

How can I find out how much my old phone is worth?

You can use the estimate_market_valuation capability by providing its age, brand, and condition.

Will it tell me if I should sell or donate?

Yes, the evaluate_disposal_utility capability provides a recommendation based on market value and repair costs.

Does it account for marketplace fees?

Yes, you can use calculate_net_proceeds to see your final profit after all platform fees are deducted.

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Connect Secondhand Value Calculator to ChatGPT and Claude

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Get accurate resale estimates and smart disposal advice.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 3 capabilities

We ship only the actions that matter.

Capability set01 / 01

01-03

3 capabilities in this set.

Part of 3 available through Secondhand Value Calculator.

01
Evaluate disposal utility
This capability recommends a specific disposal strategy. It tells you if you should sell, donate, or repair an item based on its current value.
02
Estimate market valuation
This capability finds the current market value of an item. It uses age and condition to determine a realistic resale range.
03
Calculate net proceeds
This capability calculates your actual profit. It subtracts marketplace fees from the sale price so you know your net take-home pay.

Real work

What teams actually run

Electronics Resale

Check the current value of an old smartphone or laptop before listing it online.

Repair Decisions

Determine if fixing a broken appliance is financially smarter than buying a new one.

Inventory Management

Calculate the total net proceeds from a batch of items sold on a specific marketplace.

Decluttering Strategy

Decide whether to sell a piece of furniture or donate it to a local charity.

One connector, every AI

Secondhand Value Calculator works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

Building your own app? The connector is yours to use.

You don't need a client to put Secondhand Value Calculator to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

722ms average. Fast in production.

Secondhand Value Calculator is checked daily against the live service.

Daily averagePeak 874ms

Oct 3Today

Fastest day: 526ms
Slowest day: 874ms
14-day trend: Improving-11%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 3 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Secondhand Value Calculator, so you can see the experience inside your AI.

It does not authenticate your account with Secondhand Value Calculator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Secondhand Value Calculator Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_Ke5AUAJdfwXk4951VIDCgOOa3llz25rl8Q23XZwB/mcp

Claude Desktop

Follow the steps below to connect in seconds.

1In Claude Desktop, open Settings → Connectors.
2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
3Click Add and start a new chat — Secondhand Value Calculator capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "secondhand-value-calculator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_Ke5AUAJdfwXk4951VIDCgOOa3llz25rl8Q23XZwB/mcp"
    }
  }
}

Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up Secondhand Value Calculator in Claude and other AIs

See all the AI clients this connector works with ↑

FAQ

Questions Secondhand Value Calculator owners ask.

01
How does the MCP calculate resale value?
It uses the item's age and current condition to estimate a depreciation curve and a realistic market price range.
02
Can I see my actual profit after fees?
Yes, the calculate_net_proceeds capability subtracts platform fees from the sale price to show your net earnings.
03
Will it tell me if I should fix something?
Yes, the evaluate_disposal_utility capability compares the cost of repairs against the item's market value to recommend a strategy.
04
Which AI clients can use this MCP?
You can use this with any MCP-compatible client like Claude, Cursor, Windsurf, or VS Code.
05
Do I need to host this myself?
No, Vinkius hosts and manages the MCP for you, so it is ready to use as soon as you connect.
06
How can I find out how much my old phone is worth?
You can use the estimate_market_valuation capability by providing its age, brand, and condition.
07
Will it tell me if I should sell or donate?
Yes, the evaluate_disposal_utility capability provides a recommendation based on market value and repair costs.
08
Does it account for marketplace fees?
Yes, you can use calculate_net_proceeds to see your final profit after all platform fees are deducted.

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Connect Secondhand Value Calculator to Claude, Cursor, ChatGPT & more

Connect Secondhand Value Calculator to ChatGPT and Claude

Your AI does the work. We keep it safe and sound.