Macfax
Research used Mac prices, verify listings, and get alerts for specific models on the secondhand market.
Connects to used-Mac listings across eBay, Craigslist, OfferUp, Swappa, Facebook and Reddit. Muse can look up serial numbers, check asking prices and sold prices by configuration, search filtered listings with scam detection, verify individual listings, retrieve condition reports, and set price alerts.
Try asking Muse: "Find me a used 14-inch MacBook Pro with M3 Pro under $1500 and alert me when new ones appear."
Source: Found in the official MCP Registry (com.macfax/macfax) · First listed September 24, 2026
Last 24 hours
Each bar is one check, every 15 minutes. Green means it answered. Last checked 21 min ago.
Is it safe to connect?
What Muse can see: It does not ask you to sign in, so it cannot see your accounts. It only sees what Muse sends it from your request.
Before it acts: Read what Muse plans to do before you approve it, and remove the app from Muse when you stop using it.
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How to add it to Muse
Not in Muse's Connectors list yet, but Muse can still use it. Copy the request below and paste it into Muse. Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
https://macfax.com/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Technical details: safety screening, tools, response time and recent checks
Response time at the last check: 1762ms. Worked in 100% of checks over 30 days.
Screening · September 24, 2026
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
Tools · 8
lookup_mac_serialResolve a Mac serial number to its exact model, including 2021+ randomized serials whose characters encode nothing (so no character-decoder can read them). Also returns what that model is worth (the market block: sale estimate and asking band per configuration) and whether a veriget_mac_price_statsWhat a used Mac configuration actually sells for AND what sellers are asking right now. The sold slice is the headline: verified-sale percentiles when the config has enough recent sales (sold.basis 'direct'; n and window ride along), else the asking band scaled by a measured cleaget_mac_market_valueWhat a used Mac is worth, from the name Apple gives the model, e.g. "MacBook Pro (14-inch, 2021)" or "MacBook Air (13-inch, M4, 2025)". Returns every Apple Silicon configuration the name can mean, each with its sale estimate (verified sales, or the asking band scaled by a measuresearch_mac_listingsLive used-Mac listings aggregated across eBay, Craigslist, OfferUp, Swappa, Facebook and Reddit, with scam clusters, junk titles, classified-ad bait, auctions and stale/sold rows already filtered out. Every result deep-links to the source listing where the purchase happens. Filtecheck_mac_listingThe trust picture for one specific listing, by URL (eBay/Craigslist/OfferUp/Swappa/Facebook/Reddit) or Macfax listing id: whether Macfax knows it, whether it still passes every quality gate, scam/junk/classified/auction flags, when a scan last verified it live, its ask against thget_mac_reportA verified Macfax condition report as structured data: hardware-verified identity, Activation Lock / MDM / serial-match checks, coverage status, and the signing chain. Use when a listing or seller shares a macfax.com/r/ link and the buyer wants the facts behind it. status "superscreate_mac_alertWatch the market for a configuration: Macfax emails the given address when new matching listings appear. CONSENT CONTRACT: create an alert only for a user who explicitly asked for this alert on this email address. The first alert for a new email stays inactive until the email's oget_macfax_credit_balanceHow many serial resolutions this API key has left, and what actually costs a credit. Only a brand new resolution is billed: a 2021+ (10 character) serial Macfax has never resolved and that this key has not looked up in the last 24 hours. Cached serials, pre-2021 serials, repeats Recent checks
Link
https://macfax.com/mcpQuestions about Macfax in Muse
How do I connect Macfax to Muse?
Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Macfax to help me. It is a free service with an MCP server at https://macfax.com/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
Is Macfax working right now?
At the last check (September 28, 2026, 08:46 UTC) the endpoint was working, answering in 1762ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
Is Macfax safe to connect to Muse?
It was screened on September 24, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
What can Macfax do in Muse?
It exposes 8 tools, including lookup_mac_serial, get_mac_price_stats, get_mac_market_value, search_mac_listings. For example, you could ask Muse: "Find me a used 14-inch MacBook Pro with M3 Pro under $1500 and alert me when new ones appear."
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