Check insurance denial rates, appeal outcomes, and your appeal rights by condition and treatment.
Provides verified insurer prior-authorization denial rates, external-review appeal outcomes for treatments and conditions, appeal rights by coverage type and state, and denial patterns for commonly-fought medications like GLP-1s and biologics.
Try asking Muse: "Show me the appeal overturn rate for Zepbound denials and what grounds typically win appeals for weight-loss medications."
Source: Found in the official MCP Registry (com.coverage-rights/coverage-rights) · First listed September 24, 2026
Each bar is one check, every 15 minutes. Green means it answered. Last checked 6 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://www.coverage-rights.com/api/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Coverage Rights 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://www.coverage-rights.com/api/mcpResponse time at the last check: 153ms. Worked in 99.5% 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.
list_insurersList tracked U.S. health insurers with whether verified CMS-0057-F prior-authorization metrics are available for each.get_insurer_metricsGet an insurer's verified CY2025 prior-authorization metrics (denial rate, appeal overturn rate, decision times) from its own CMS-0057-F disclosure, plus contract/plan-level rows where collected. Includes source URLs and scope notes.rank_denial_ratesInsurer prior-authorization denial rates (CY2025), ranked only within compatible reporting cohorts. Each row includes its cohort, rank within that cohort, exact source scope, calculation method, and source link. Never compare ranks across cohorts.get_treatment_outcomesExternal-review outcomes for a treatment: how often insurer denials of this treatment/drug/procedure were overturned by independent reviewers (42,749 published CA IMR decisions, 2001–2026). Accepts a category slug (e.g. 'pharmacy') or specific treatment slug (e.g. 'zepbound', 'spget_condition_outcomesExternal-review outcomes for a medical condition: how often insurance denials involving this condition were overturned, plus the most-fought treatments for it.search_outcomesSearch treatments (categories + specific drugs/procedures) and conditions by the names used in the published data. The query must appear in a name as a whole word or phrase (e.g. 'wegovy', 'back pain', 'ct scan'); generic names, abbreviations and drug classes are not translated, get_appeal_rightsDeterministically resolve the governing appeal route, missing facts, filing recipient, deadlines, current external-review status, and verified grounds. Distinguishes Original Medicare, Medicare Advantage medical benefits, Part D pharmacy benefits, employer funding/governance, ACAget_drug_playbookCurated medication background, common denial patterns, preparation considerations, and available historical California review outcomes for covered GLP-1 and IBD drugs. Accepts a brand or generic name. Confirm current labeling, the actual benefit channel and plan criteria; the guiprepare_knee_injection_evidencePrepare a free, category-level evidence checklist for a knee osteoarthritis hyaluronic-acid injection denial using routing facts, injection-series status, and record availability categories. Reuses the existing knee denial preparation kit. Does not inspect records or verify an inget_state_external_reviewHow a state's external review process works: filing deadline, regulator contact, and key facts. Verified detail currently covers 10 states (CA, TX, FL, NY, PA, IL, OH, GA, NC, MI); other states return the covered list.https://www.coverage-rights.com/api/mcpNot in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Coverage Rights to help me. It is a free service with an MCP server at https://www.coverage-rights.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 13, 2026, 09:31 UTC) the endpoint was working, answering in 153ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
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.
It exposes 10 tools, including list_insurers, get_insurer_metrics, rank_denial_rates, get_treatment_outcomes. For example, you could ask Muse: "Show me the appeal overturn rate for Zepbound denials and what grounds typically win appeals for weight-loss medications."
This listing was added from public sources (Found in the official MCP Registry (com.coverage-rights/coverage-rights)). If you build Coverage Rights, 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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