Ebay MCP Server
Enables searching eBay for auctions by providing a query and number of results, returning auction listings from eBay's Browse REST API.
README
eBay MCP Server — Claude.ai Connector
Search and research eBay listings via a hosted MCP server connected to Claude.ai.
Forked from CooKey-Monster/EbayMcpServer.
What it does
Adds ten tools to Claude.ai for browsing, researching, and comparing eBay listings:
"Find me vintage cameras under $200 — auctions and Buy It Now" "What did that model actually sell for recently?" "Are there any eBay sale events on right now?"
Deployment (Railway)
1. Prerequisites
- Railway account
- eBay Developer app credentials (Client ID + Secret)
2. Deploy
- Fork this repo and create a new Railway project from it
- In Railway project settings, set Build > Builder to Dockerfile with path
Dockerfile.plugin - Set the following environment variables in Railway:
| Variable | Required | Description |
|---|---|---|
EBAY_CLIENT_ID |
Yes | Your eBay App ID |
EBAY_CLIENT_SECRET |
Yes | Your eBay Client Secret |
MCP_AUTH_TOKEN |
Yes | Bearer token Claude.ai uses to authenticate every request. Use a strong random value (e.g. openssl rand -hex 24). |
MCP_CLIENT_ID |
Yes | Client identifier checked during OAuth. Can be any string (e.g. ebay-mcp). |
MCP_AUTH_PASSPHRASE |
Recommended | If set, the authorization page shows a password field. Only someone who knows this passphrase can connect a new Claude.ai session. Use ASCII characters only; avoid leading/trailing spaces. |
Railway automatically sets PORT and RAILWAY_PUBLIC_DOMAIN.
3. Connect to Claude.ai
- Go to Claude.ai → Settings → Connectors → Add custom connector
- Fill in:
- MCP Server URL:
https://<your-railway-domain>/mcp - Client ID: the value you set for
MCP_CLIENT_ID
- MCP Server URL:
- Click Connect — a browser page will open asking you to authorize access
- If
MCP_AUTH_PASSPHRASEis set, enter the passphrase and click Allow Access - You'll be redirected back to Claude.ai and the connector will activate
The passphrase is only required when first connecting (or reconnecting). It is not needed for individual searches.
Tools
Browse & Search
| Tool | Arguments | Description |
|---|---|---|
list_auction |
query (string), amount (int, default 10) |
Search eBay auction-only listings by keyword. Returns title, current bid, end time, item ID, and URL. |
search_ebay |
query (string), amount (int, default 10), buying_options (string, optional), category_ids (string, optional) |
Search all eBay listing formats. buying_options can be AUCTION, FIXED_PRICE, or BEST_OFFER (leave blank for all). category_ids accepts a comma-separated list of eBay category IDs. |
get_auction_detail |
item_id (string) |
Fetch full details for a single listing: title, condition, bid/price, bid count, seller feedback, return policy, shipping options with estimated delivery, item specifics, description, and photos. |
get_items_by_ids |
item_ids (string) |
Batch-fetch details for up to 20 items in one call. Pass a comma-separated list of item IDs. |
get_item_variants |
item_group_id (string) |
Get all variants (color, size, storage, etc.) for a multi-variation eBay listing. |
get_item_by_legacy |
legacy_item_id (string), legacy_variation_id (string, optional) |
Look up an item using an old-style numeric eBay item ID. |
Deals & Sale Events
| Tool | Arguments | Description |
|---|---|---|
get_ebay_deals |
amount (int, default 10), category_ids (string, optional) |
Get current eBay daily deal items with prices and discount percentages. |
get_ebay_sale_events |
amount (int, default 10) |
List active eBay sale events (sitewide and category sales). Returns event IDs, titles, and dates. |
get_sale_event_items |
event_id (string), amount (int, default 10) |
Get items in a specific sale event. Use an event ID from get_ebay_sale_events. |
Price Research
| Tool | Arguments | Description |
|---|---|---|
search_sold_listings |
query (string), amount (int, default 10) |
Search historical sold listings to see what items actually sold for (Marketplace Insights API). |
Note: Watcher count is not available — eBay restricts that to seller-authenticated APIs only.
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