Shop cash-price Quest blood tests, compare all-in prices and find draw sites near you.
Connects to the JustLabs catalog of Quest Diagnostics blood tests and panels. Muse can search tests by name, condition or biomarker, get all-in pricing with the per-order fee, compare prices against other lab providers, find nearby draw sites by ZIP code, look up reference ranges and read preparation guides.
Try asking Muse: "Find a Quest blood draw site near 90210 and tell me the all-in price for a thyroid panel."
Source: Found in the official MCP Registry (health.justlabs/justlabs) · First listed November 13, 2026
Each bar is one check, every 15 minutes. Green means it answered. Last checked 1 h ago.
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.
musedirectory.ai is not part of Meta. More about how Muse handles your information
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://mcp.justlabs.health/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
JustLabs is a remote MCP server, so any assistant that can add a custom connector by link can use it. Same link, same tools.
In ChatGPT, open Settings, then Connectors (called Apps & Connectors on some accounts).
Under Advanced settings, switch on Developer mode. That is what lets you add a connector by link.
Choose Create, give it a name, paste the link as the MCP server URL, and save. If it needs a sign-in, ChatGPT asks for it here.
Start a chat, open the tools menu, pick the connector, and ask. ChatGPT asks before it runs a tool the first time.
Custom connectors need a paid ChatGPT plan, and on Team, Enterprise and Edu accounts only an admin can add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in ChatGPT
In Claude, open Settings, then Connectors.
Choose Add custom connector, give it a name, and paste the link.
If it needs a sign-in, Claude sends you to it. Then turn the connector on in a chat from the tools menu and ask.
Custom connectors are available on paid Claude plans; on Team and Enterprise accounts an admin may need to add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in Claude
https://mcp.justlabs.health/mcpResponse time at the last check: 201ms. Worked in n/a of checks over 30 days.
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.
search-lab-testsSearch the JustLabs catalog of tests AND panels by test name, condition (e.g. menopause, gout, anemia), category, or biomarker. Use only product terms; do not include names, contact details, symptoms, or personal lab results. Prices are per test; one $18 lab & physician order feeget-test-detailsGet full details for a specific lab test or panel by its ID. Returns pricing, biomarkers (or included tests for a panel), preparation instructions, and turnaround time.get-test-panelsGet available test panels and compare panel base prices with their included tests bought separately. One $18 lab & physician order fee applies once per order.get-pricingGet the exact all-in price for one or more JustLabs test or panel IDs: each item's price, the single $18 per-order lab & physician fee (charged once per order), and the total — the same amount checkout charges. Pass an optional 2-letter US state to check whether the order can be find-draw-sitesFind Quest Diagnostics patient service centers (blood-draw sites) near a 5-digit US ZIP code where a JustLabs order can be collected: site code, address, distance, hours, walk-ins and a booking link, optionally with the next open appointment times. Send only a ZIP code — never a lookup-reference-rangeTypical reference ranges for a lab marker (e.g. TSH, ferritin, LDL cholesterol, vitamin D), optionally by sex and age, with unit, source and the JustLabs test that measures it. Educational only: ranges vary by lab and method, and the range printed on the patient's own lab report compare-pricesCompare the all-in price of one JustLabs test or panel (catalogue id such as tsh, or a test name) with published prices from other direct-to-consumer lab services: each one's price, per-order fees and all-in total, whether it covers the same tests, the source link and the date chcompare-providerHow JustLabs compares with another lab-testing provider (e.g. everlywell, testwell, quest, labcorp): a short verdict, side-by-side facts with sources, where each one is the better choice, FAQs and a link to the full comparison page. Product terms only.recommend-testsSuggest JustLabs panels and tests for health goals (e.g. energy, heart health, fertility) and/or symptoms (e.g. fatigue, hair loss), each with a one-line reason, price, all-in price and link, plus the JustLabs guide pages the suggestion is based on. General education, not a diagnget-guideRead a public JustLabs guide page as Markdown, e.g. /blood-test-preparation, /labs-for/hypothyroidism, /tests/tsh or /compare/everlywell. Pass a justlabs.health path starting with /, not a full URL. Account, checkout, results, admin and API paths are refused. Educational content;https://mcp.justlabs.health/mcpNot in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use JustLabs to help me. It is a free service with an MCP server at https://mcp.justlabs.health/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.
At the last check (November 13, 2026, 15:41 UTC) the endpoint was working, answering in 201ms. It is checked every 15 minutes.
It was screened on November 13, 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.
It exposes 10 tools, including search-lab-tests, get-test-details, get-test-panels, get-pricing. For example, you could ask Muse: "Find a Quest blood draw site near 90210 and tell me the all-in price for a thyroid panel."
This listing was added from public sources (Found in the official MCP Registry (health.justlabs/justlabs)). If you build JustLabs, claim it to correct the details and get your badge.
Paste this on your site or README. It always shows the latest check.
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