Decode medical bills, denial codes and Medicare drug plans in plain words
Pulls from CMS and X12 data on 2027 Medicare drug plans, claim adjustment and remark codes, HCPCS Level II codes and Medicare appeal timelines. Muse can explain a denial on an explanation of benefits, work out the last day to appeal, look up a billing code or compare drug plans in a county.
Try asking Muse: "My plan denied a claim with code CO-97, what does that mean and when is my appeal deadline?"
Source: Found in the official MCP Registry (com.bonissystems/health-agent) · First listed November 14, 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.
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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://healthagentcare.com/api/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Health Agent 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://healthagentcare.com/api/mcpResponse time at the last check: 341ms. 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.
medicare_drug_plans_2027Every 2027 Medicare plan with drug coverage CMS lists for a county: stand-alone drug plans (with Original Medicare) and Medicare Advantage plans, each with company, monthly premium, change from 2026, drug deductible and, for stand-alone plans, the premium with Extra Help. Give a denial_code_lookupWhat an insurance or Medicare denial code on an explanation of benefits means: a Claim Adjustment Reason Code (e.g. CO-97, PR-1, 197) or a Remark Code (e.g. M15, N432), from the X12 code lists. With a prefix it says whether the person may owe the amount (CO is the provider's writappeal_deadlineThe last day to file an appeal of a Medicare, Medicare Advantage, Part D or commercial/ACA/employer plan denial, counted the way the rules count it (Medicare presumes receipt 5 days after the notice date), with days remaining, who decides, and the next level. Not legal advice; cohcpcs_lookupWhat a HCPCS Level II code on a bill, supplier invoice or explanation of benefits describes (a letter and four digits, e.g. E0601, J9271, A4253), with its Medicare coverage status, from CMS's quarterly HCPCS file. CPT codes (five digits) are not covered: their descriptions are cohttps://healthagentcare.com/api/mcpNot in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Health Agent to help me. It is a free service with an MCP server at https://healthagentcare.com/api/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 14, 2026, 17:46 UTC) the endpoint was working, answering in 341ms. It is checked every 15 minutes.
It was screened on November 14, 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 4 tools, including medicare_drug_plans_2027, denial_code_lookup, appeal_deadline, hcpcs_lookup. For example, you could ask Muse: "My plan denied a claim with code CO-97, what does that mean and when is my appeal deadline?"
This listing was added from public sources (Found in the official MCP Registry (com.bonissystems/health-agent)). If you build Health Agent, claim it to correct the details and get your badge.
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