OldCarsData provides structured historical vehicle data for researching classic and vintage automobiles. Look up makes, models, production years, specifications, and related vehicle records to compare older cars and support automotive research and valuation.
OpenClaw is a self-hosted agent gateway. It connects to remote MCP servers over streamable HTTP, configured in one file.
This guide connects OldCarsData MCP to OpenClaw through MewCP, so OpenClaw can use OldCarsData MCP's 8 tools, like get_auction_bids, get_price_stats and list_auction_bids, without your OldCarsData MCP credentials ever reaching the app.
OldCarsData MCP signs in through managed OAuth. MewCP stores the token encrypted, refreshes it before it expires and injects it only at call time. Your agent never holds it, so it can never leak it.
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Scope access to the exact OldCarsData MCP tools and accounts you allow, work and personal side by side. Anything outside that scope is refused at call time, even when the model asks for it.
Each call is logged: what ran, on which account, and whether it worked. Failures come back structured, so the agent knows whether to retry instead of guessing.
Every app sits behind one secure MCP URL, and there is no server for you to deploy or keep running. Add an integration in the dashboard and it is live on the next call, with no config to change and no new credentials to wire up. Tools load only when a task needs them, so your agent stays fast and focused however many apps you connect.
Edit ~/.openclaw/openclaw.json. Create it if it doesn't exist.
Restart OpenClaw. Sign in when the browser window opens.
Start a new chat and ask: "List the tools you can use from MewCP." You should see your connected apps.
Get bid history for a live or completed Bring a Trailer, Cars & Bids, Hemmings, Hagerty, PCAR Market, All Collector Cars, or Sotheby's Motorsport auction by auction ID where bid data is available. Use after search_auctions or search_live_auctions when a user asks for bidding activity, bid ladder, bidder names, bid amounts, or bid timing. Counts toward plan query limits.
Get pricing statistics and 12-month market trends for a classic or collector car make or make/model across Bring a Trailer, Cars & Bids, Hemmings, AutoHunter, Hagerty, PCAR Market, All Collector Cars, Gooding & Co, RM Sotheby's, Barrett-Jackson, Sotheby's Motorsport, Car & Classic, The Market, Broad Arrow, MB Market, Mecum Auctions, PistonHeads, Collecting Cars, and Bonhams. Returns average price, median price, price range, sell-through rate, and monthly price trend data. Use when a user asks about average values, whether prices are rising or falling, market trends, or wants a statistical summary rather than individual listings. Requires a paid plan.
Deprecated alias for get_auction_bids. Use get_auction_bids for new integrations. Counts toward plan query limits.
Deprecated alias for search_live_auctions. Use search_live_auctions for new integrations. Counts toward plan query limits.
List all vehicle makes in the Old Cars Data database. Covers 100+ makes across Bring a Trailer, Cars & Bids, Hemmings, AutoHunter, Hagerty, PCAR Market, All Collector Cars, Gooding & Co, RM Sotheby's, Barrett-Jackson, Sotheby's Motorsport, Car & Classic, The Market, Broad Arrow, MB Market, Mecum Auctions, PistonHeads, Collecting Cars, and Bonhams. Use when a user asks what cars or brands are available, or to discover valid make names before searching auctions.
List all models for a given vehicle make in the Old Cars Data database. Use to discover valid model names before searching auctions or getting price stats. For example, list models for "Porsche" to find "911", "944", "Boxster", etc.
Search 400,000+ completed classic and collector car auction results from 2018-present across Bring a Trailer, Cars & Bids, Hemmings, AutoHunter, Hagerty, PCAR Market, All Collector Cars, Gooding & Co, RM Sotheby's, Barrett-Jackson, Sotheby's Motorsport, Car & Classic, The Market, Broad Arrow, MB Market, Mecum Auctions, PistonHeads, Collecting Cars, and Bonhams. Completed-sale data is refreshed every 15 minutes. Use when a user asks what a classic car sold for, recent auction prices, whether a car is a good buy, or wants to compare sale results. Returns listings with source-reported sale results, auction status, vehicle specs including mileage and mileage_unit when known, condition details, modifications, known flaws, and source URLs. Buyer-premium treatment is not normalized, so use the source URL when that distinction matters. All filters are optional; narrow by make/model, exact VIN, seller_username, keyword, year, price, status, or source as needed. For sequential result sets, use pagination=cursor and pass each next_cursor to the following request; this avoids exact counts and deep offsets.
Search currently active Bring a Trailer, Cars & Bids, Hemmings, Hagerty, PCAR Market, All Collector Cars, Gooding & Co, RM Sotheby's, Sotheby's Motorsport, Car & Classic, The Market, MB Market, Mecum Auctions, and PistonHeads auctions with current price, ending time, mileage and mileage_unit when known, bid count, seller, source URL, auction ID, featured_image_url, and deprecated image_url alias. Use when a user asks what auctions are live now, what is ending soon, or wants active listings to monitor. Counts toward plan query limits.
