Compare what a trading-card seller keeps across eBay, Pulltrader, and other card marketplaces.
Config is the same across clients — only the file and path differ.
{
"mcpServers": {
"app-pulltrader-seller-economics": {
"command": "<see-readme>",
"args": []
}
}
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Compare what a trading-card seller keeps across eBay, Pulltrader, and other card marketplaces.
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Compare what a trading-card seller keeps across eBay and Pulltrader selling methods — inside your AI assistant.
A public, read-only Model Context Protocol server that estimates the net amount a trading-card seller keeps when selling the same card through eBay versus Pulltrader's selling methods (marketplace, Fulfilled by Pulltrader, branded storefront, and in-person POS).
Calculations are deterministic and use a dated, versioned fee schedule. The server performs the math itself — it never asks the model to infer fees from prose. eBay figures are clearly labeled estimates.
POST /mcp)https://mcp.pulltrader.app/mcpapp.pulltrader/seller-economicsTrading-card sellers, dealers, and shops deciding where to list a card and how much they'll take home — especially while comparing eBay against alternatives.
| Does | Doesn't |
|---|---|
| Estimate seller fees & net proceeds per method | Look up a card's market value or recent sales |
| Compare eBay (estimated) vs Pulltrader methods | Identify a card from text or image |
| Compute the price needed for a target net (via inputs) | Make any write/account changes |
| State its assumptions and limitations explicitly | Claim one platform is universally cheapest |
Card identification, comparable sales, and "what's it worth" are out of scope for this server (see ROADMAP).
compare_selling_costsCompare estimated fees and seller net proceeds for one trading-card sale across selling methods.
Inputs
| Field | Type | Required | Default | Notes |
|---|---|---|---|---|
sale_price | number | ✅ | — | Per-item price, > 0 |
currency | enum USD | USD | Only USD supported | |
quantity | integer | 1 | Per-order fixed fees applied once | |
shipping_amount | number | 0 | Affects eBay's fee base | |
item_category | enum trading_cards | trading_cards | Only trading cards | |
seller_plan | enum free|starter|pro|shop | free | Marketplace payout tier | |
seller_covers_fees | boolean | false | If false, buyer pays the platform fee | |
ebay_store_subscription | boolean | false | Use eBay Store rate (12.35%) vs individual (13.25%) | |
methods | array | eBay + marketplace + storefront | Subset of supported methods | |
acquisition_cost | number | — | Estimates net profit per method | |
ebay_fee_percent_override | number | — | Override estimated eBay FVF % (flat) |
Supported methods: ebay, pulltrader_marketplace, pulltrader_fbp, pulltrader_storefront, pulltrader_pos, and estimated competitor marketplaces tcgplayer, manapool, misprint, fanatics_collect, goldin (off by default — opt in via methods). Competitor figures model fixed-price / Buy Now seller fees only; auction formats (hammer price, buyer's premium, negotiated consignment) are not modeled.
Output (structured): currency, sale_price, methods[] (each with gross_amount, estimated_total_fees, fee_breakdown, estimated_payout, effective_fee_rate, owns_listing, fulfilled_by, where_it_sells, estimated, notes), difference_from_baseline, best_for_seller, assumptions, inputs_used, fee_schedules, fee_schedule_version, warnings, calculated_at, disclaimer, related_url. A concise, neutral human summary is returned as text content.
On a $250.00 trading-card sale, estimated seller proceeds by method:
- Sell it yourself on
... [View full README on GitHub](https://github.com/pulltrader/pulltrader-mcp#readme)